3
Dynatel™
Advanced Modular System
965AMS
Version 4.01.17 User’s Guide
Future-Proof Testing Platform
November 2010
78-8135-5011-4-D
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Contents
Introduction .....................................................................................5
Getting Started ..........................................................................................5
Welcome Screen........................................................................................7
Help...........................................................................................................7
High Voltage .............................................................................................8
System Setup...................................................................................9
Country .....................................................................................................9
Language.................................................................................................10
Module....................................................................................................11
Network Setup ........................................................................................11
Units........................................................................................................12
User Info .................................................................................................14
Clock Settings.........................................................................................15
Set Beep Volume.....................................................................................18
Power Down Timeout .............................................................................19
Custom Cable..........................................................................................20
Voltage Termination................................................................................24
Measurement Functions................................................................26
Volts-DC or AC.......................................................................................27
Loop Current...........................................................................................29
Ohms Measurements...............................................................................32
Toolbox ...................................................................................................38
Internet Explorer.....................................................................................44
Opens ......................................................................................................48
Tone.........................................................................................................53
RFL (Resistance Fault Locate) ...............................................................58
DSL (Digital Subscriber Line)................................................................99
TDR.......................................................................................................117
POTS.....................................................................................................137
Auto Test...............................................................................................163
Talk Set .................................................................................................185
Care & Maintenance ....................................................................191
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3
System Modes.......................................................................................191
AC Charger ...........................................................................................192
DC Charger ...........................................................................................192
Level of Charge.....................................................................................193
System Reset.........................................................................................193
Battery Pack..........................................................................................194
Battery Holder.......................................................................................196
Test Leads .............................................................................................196
Self-Test Board ............................................................................197
Specifications..............................................................................199
Electrical Specifications........................................................................199
General Specifications ..........................................................................202
Contact 3M...................................................................................203
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4
3M™ Dynatel™ Advanced Modular System 965AMS
Introduction
Introduction
Getting Started
1. Press the red
down the unit.
key to power up the unit or to power
2. Press the
key to change the contrast. Use the
or
keys to adjust the contrast on the screen.
3. F1 through F5 are the soft
keys. Their function is
displayed in the box above
the key.
Example: To use the AC
Volts, press F5.
4. At the beginning of each
RED
GRN
BLK
YEL
BLU
Ring (B) 1
Ground
chapter there will be a
wiring diagram showing
the test lead hook-up. The
screen will also show the
test lead hook-up.
Tip (A) 1
Ring (B) 2
Tip (A) 2
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5
Introduction
3M™ Dynatel™ Advanced Modular System 965AMS
Getting Started
5. Some screens require you
to choose from a list of
possible choices.
Use the up and down arrow
keys to make your choice.
6. Other screens may allow
you to enter information
such as telephone numbers.
You can position the cursor
by using the Left and Right
arrow keys.
7. This symbol indicates you
should use the blue keys
to enter numeric values or
numbers.
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6
3M™ Dynatel™ Advanced Modular System 965AMS
Introduction
Getting Started
8. Use the
(escape) key to quit the current screen
without making any changes. Use multiple escapes to return
to the Welcome screen.
9. The battery symbol in the upper right-hand corner of
the display gives an indication of the approximate battery
capacity. Each bar represents one-quarter of the full
capacity.
10. The unit is powered by a rechargeable NiMH battery pack.
The unit will also work with the “AA” battery pack. Six
“AA” batteries are required. Dispose of the batteries per
your company procedures. See Care & Maintenance for
more information on using the rechargeable battery pack.
Welcome Screen
This is the screen that you see
when you first turn on the tester.
It shows the model name, serial
number, software version, and
selected country.
Help
Press the
key at any time in any screen to get help with the
OK
current function. Press
screen.
or
to return to the previous
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7
Introduction
3M™ Dynatel™ Advanced Modular System 965AMS
High Voltage
This screen indicates a high
voltage (120 VAC/VDC or
greater) has been detected
between the test leads when not
in the Voltage Mode. The tester
has opened an internal relay
to protect itself from damage.
Use standard safety practices
for disconnecting the test leads
since high voltage may be
OK
present. Press
to restart
the 965AMS tester.
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8
3M™ Dynatel™ Advanced Modular System 965AMS
System Setup
System Setup
Start with the Welcome Screen.
Setup
Press
to review the
global settings or to make
changes.
Country
1. Use the Country setup to
configure the tester for a
specific country. Selecting a
new country will configure
the tester with the setups
for language, units, clock
format, wire gauges,
and cable types for that
particular country. Press
Change
to make changes
or to review the current
settings.
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9
System Setup
3M™ Dynatel™ Advanced Modular System 965AMS
Country
2. Use the up and down arrow
keys to highlight a country.
You will be warned about
changing country-specific
default values and asked
to confirm or cancel your
OK
selection. Press
to
continue or press
to quit without making
changes.
Language
1. Use the Language setup to
change only the language
in the tester. Country-
specific default values are
not affected. Use the up
and down arrow keys to
highlight a new language.
OK
Press
press
to continue or
to quit without
making changes.
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10
3M™ Dynatel™ Advanced Modular System 965AMS
System Setup
Module
1. Use the Module setup to
select the type of module
that is installed in your
tester. The module type is
listed on the label on the
module.
Use the up and down arrow
keys to highlight Module.
Change
Press
to make
changes or to review the
current settings.
Network Setup
1. Use Network Setup
to change network
options used to connect
to computers or ADSL
circuits.
Use the up and down arrow
keys to highlight Network
Change
Setup. Press
to
make changes or to review
the current settings.
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11
System Setup
3M™ Dynatel™ Advanced Modular System 965AMS
Units
1. Use the Units menu
to change the Units of
Measure. Use the up
and down arrow keys to
highlight Units. Press
Change
to continue or
press
to quit without
making changes.
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12
3M™ Dynatel™ Advanced Modular System 965AMS
System Setup
Units
2. Use the up and down arrow
keys to select the units
you want to change. Press
Change Selection
to change
the units of measure. An
“X” in a box indicates your
choice.
Distance: Feet or Meters:
This affects all distances
displayed in the 965AMS
tester.
Degrees: Fahrenheit or
Centigrade: This affects all
temperatures used in the
965AMS tester.
Filter: C-Message or CCITT: This affects the filter
used in the POTS Noise function. Use the C-Message
filter in the US and Canada. Use the CCITT (also called
“Psophometric”) filter in all other countries.
The 965AMS tester features a dBrnP filter for noise tests
in New Zealand. To set the default noise filter to dBrnP, set
Filter option to CCITT. This filter is used only in units sold
in New Zealand; for all other countries, the CCITT option
uses a dBrnOp filter. Noise test results will be displayed
as dBrnP.
TDR: Vp (Velocity Propagation) or m/µS (meters
per microsecond): This affects the TDR “velocity of
propagation.” Use “Vp” in the US and Canada. Use “m/µS”
OK
in other countries. Press
return. Use the
to accept any changes and
key to return to the Welcome Screen
without making changes.
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13
System Setup
3M™ Dynatel™ Advanced Modular System 965AMS
User Info
1. Select User Info to add
your Tech ID and job
number to be added to
saved test results.
Use the up and down arrow
keys to highlight User Info.
Change
Press
to make
changes or to review the
current settings.
2. Use the blue keys to enter
your ID, name, etc. Press
Select Job ID
to highlight
the Job Num field.
Use the blue keys to enter
a job number or ID. Press
OK
to continue or press
to quit without
making changes.
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14
3M™ Dynatel™ Advanced Modular System 965AMS
System Setup
Clock Settings
1. Use the Clock Settings
menu to select the clock
format and to set the
correct time. Use the up
and down arrow keys to
OK
highlight Units. Press
to continue or press
to quit without making
changes.
2. Use the blue keys to enter
the correct date.
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15
System Setup
Clock Settings
Select
3M™ Dynatel™ Advanced Modular System 965AMS
3. Press
, then enter the
correct time using the blue
keys.
Select
4. Press
to enter the
date format. Choose month,
day, year or day, month,
year.
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16
3M™ Dynatel™ Advanced Modular System 965AMS
System Setup
Clock Settings
Select
5. Press
to choose the
12-hour or 24-hour format.
Use the up and down arrow
keys to select the format.
If you choose the 12-hour
a.m.
p.m.
format, press
or
.
OK
Note: Press
at
any time that you have
completed your updates.
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17
System Setup
3M™ Dynatel™ Advanced Modular System 965AMS
Set Beep Volume
1. Use this menu to change the
Set Beep Volume. Use the
up and down arrow keys to
highlight Set Beep Volume.
Change
Press
or press
to continue
to quit
without making changes.
2. Use the up and down arrow
keys to change the beep
OK
volume. Press
to save
this volume setting.
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18
3M™ Dynatel™ Advanced Modular System 965AMS
System Setup
Power Down Timeout
1. Use this menu to change
the Power Down Timeout.
Use the up and down arrow
keys to highlight Power
Down Timeout. Press
Change
to continue or
press
to quit without
making changes.
2. Use the up and down arrow
keys to select the timeout
OK
you want to use. Press
to save your choice.
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19
System Setup
3M™ Dynatel™ Advanced Modular System 965AMS
Custom Cable
Use Custom Cable 1 or Custom Cable 2 to create a special
cable you are using on a regular basis that has capacitance
values that are different from existing cables. You can also
access this function in the Opens Setup menu.
1. Press the blue
key to enter the Opens
measurement function.
Setup
2. Press
to enter the
Setup menu.
3. Use the up and down arrow
keys to select Custom 1 or
Custom 2.
Edit Custom
Press
.
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20
3M™ Dynatel™ Advanced Modular System 965AMS
System Setup
Custom Cable
4. Use the blue keys to enter
the capacitance to ground.
Select Mutual
Press
.
5. Use the blue keys to enter
the mutual capacitance.
Select Ohms
Press
.
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21
System Setup
3M™ Dynatel™ Advanced Modular System 965AMS
Custom Cable
6. Use the blue keys to enter
ohms per thousand feet.
Select Velocity
Press
.
7. Use the blue keys to enter
the velocity propagation. If
you do not know this value,
use 0.68.
Select Cable
Press
.
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22
3M™ Dynatel™ Advanced Modular System 965AMS
System Setup
Custom Cable
8. Use the up and down arrow
keys to select Custom 1 or
Custom 2.
OK
Press
to save the
custom cable.
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23
System Setup
3M™ Dynatel™ Advanced Modular System 965AMS
Voltage Termination
1. The Voltage Termination
option allows you to select
the input impedance of the
965AMS digital voltmeter
(in supported countries
only). The input impedance
of the internal 965AMS
voltmeter is normally
1Mohm. However, some
legacy systems use voltage
measurement systems
with input impedances of
100Kohms. This option
is provided to maintain
measurement compatibility
with those systems.
If 100Kohm termination is
selected, the 965AMS tester
will display ‘100K’ on the
voltage measurement.
Use this menu to change
the Voltage Termination.
Use the up and down arrow
keys to highlight Voltage
Change
Termination. Press
to continue or press
to quit without making
changes.
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24
3M™ Dynatel™ Advanced Modular System 965AMS
System Setup
Voltage Termination
2. Use the up and down arrow
keys to select the Voltage
Termination you want to
OK
use. Press
to save
your choice.
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25
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
The 12 measurement functions include:
DC and AC voltage measurements
milliAmps and ground resistance measurements
Ohms measurement and Soak Test
Self-Calibrate, Stored Results and Ohms-to-Distance
Calculator
Opens distance measurement
Send Tones
Resistance Fault Locate: Distance measurement to a
resistive fault
DSL Loss and Noise plus the Spectrum Analyzer and
Resistance Balance
Time Domain Reflectrometer (TDR)
POTS Loss, Noise, Longitudenal Balance, Load Coil
Counter and Caller ID
Automatic testing of circuits using “Expert Pair Tests”
Talk Set
#
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26
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
Volts-DC or AC
The Volts
function measures the DC voltage or AC voltage
between Tip, Ring and Ground.
Volts-DC or AC>Hook-Up
RED
GRN
BLK
Ring (B)
Ground (Earth)
Tip (A)
Volts-DC or AC>Operation
1. Press the blue
to start the voltage
measurement function.
key
2. This screen displays the
T-R voltage in the larger
active measurement box.
Tip Gnd
3. Press
to display
the T-G voltage. The T-R
measurement will be
saved on the screen in a
smaller box until a new
measurement updates the
screen.
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27
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
Volts-DC or AC>Operation
Ring Gnd
4. Press
to display
the R-G voltage. The
T-G measurement will be
saved on the screen in a
smaller box until a new
measurement updates the
screen.
5. All measurements are erased when you exit this function.
Volts-DC or AC>AC Volts
AC Volts
1. Press
to measure
AC volts.
AC Normal Range—Active Line:
1. R-G and T-G should have the same AC voltage. If they are
not equal the pair will probably have noise.
2. T-R should be 0 volts
Note: Maximum voltage = 300 volts DC, 250 volts AC
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28
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
Loop Current
Loop Current
measures the loop current in an active line.
Loop Current>Hook-Up
RED
Ring (A)
Tip (B)
BLK
Loop Current>Operation
1. Press the blue
start this test.
key to
2. This is a continuous
measurement until you
disconnect the test leads or
choose another function.
Normal Measurements
OK
Marginal
Not OK
Current
>23mA
20-23mA
<20mA
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29
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
Loop Current>Operation
3. Over Current Warning
The tester has detected
a current greater than
110 mA.
Over current can damage
the test set. Use standard
safety practices for
disconnecting the test leads
and eliminating the source
of the over current.
Disconnect all test leads
Retest
then press
continue.
to
Loop Current>Ground Resistance
The Ground Resistance function compares the customer
protector ground resistance to an active central office pair.
Note: The Ground Resistance function only works with central
offices with the Tip connected to ground.
Loop Current>Ground Resistance>Hook-Up
RED
GRN
BLK
Ring (B)
Ground (Earth)
Tip (A)
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30
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
Loop Current>Ground Resistance>Operation
1. Press the blue
start this test.
key to
Gnd Resistance
Press
to access the Ground
Resistance function.
Test
2. Press
to start the
test. The results will be
displayed in the box in the
center of the screen.
3. This is not a continuous
Test
test. Press
to see an
updated result.
Normal Measurements
0 Ω to 25 Ω
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31
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
Ohms Measurements
The Ohms Measurement function
measures the insulation
resistance between the Tip, Ring and Ground. This function
can also measure the resistance of the Tip and Ring loop or
individual wires.
Ohms Measurements>Hook-Up
RED
GRN
BLK
Ring (B)
Ground (Earth)
Tip (A)
Ohms Measurements>Operation
1. Press the blue key to
start the ohms measurement
function.
2. This screen displays the
T-R resistance in the larger
active measurement box.
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32
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
Ohms Measurements>Operation
Tip Gnd
3. Press
to display
the Tip-Ground resistance.
The T-R measurement will
be saved on the screen in
a smaller box until a new
measurement updates the
screen.
Ring Gnd
4. Press
to display the
Ring-Ground resistance.
The T-G measurement will
be saved on the screen in
a smaller box until a new
measurement updates the
screen.
5. All measurements are erased when you exit this function.
Normal Range: POTS Insulation Resistance
OK
Marginal
Not OK
Insulation Resistance
>3.3 MΩ
80 kΩ to 3.3 MΩ
<80 kΩ
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33
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
Ohms Measurements>Voltage Compensation
The Voltage Compensation
feature compensates for
crossed battery on the line.
Use “compensated” for most
measurements.
V Comp
Press
to turn voltage
compensation off and on. The
screen displays “Compensated”
or “Not Compensated.”
Ohms Measurements>Soak Test
The Soak Test function can
determine if the source of a
resistive fault is caused by
moisture, corrosion or pure
resistance by applying a current
to the circuit and measuring a
change in resistance.
Soak Test
Press
to access the
Soak Test menu.
NOTE: The Soak Test function
will not work properly if there
is voltage on the line. Voltage
Compensation does not apply
to the Soak Test.
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34
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
Ohms Measurements>Soak Test
1. Take an initial resistance
measurement by pressing
Snap Shot
the
key.
2. You will compare this to
other active measurements
to determine the source of
the fault.
3. One of the properties of
moisture in a circuit is that
the current from the tester
can “dry out” the moisture.
The display will first show
a lower resistance, then
after one or two minutes the
resistance will increase to a
higher reading.
Initial Reading
This indicates the fault is
caused by moisture.
Note: This is not an
acceptable procedure to
“dry” a fault.
Reading After 1 or 2 Minutes
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35
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
Ohms Measurements>Soak Test
4. A property of corrosion
is that a current flowing
through the corrosion will
cause the corrosion to
become a better conductor.
The display will show a
lower resistance reading if
corrosion is the cause.
Initial Reading
Reading After 1 or 2 Minutes
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36
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
Ohms Measurements>Soak Test
5. If the resistance value does
not change, the fault is a
pure resistive fault.
Go To Positive Voltage
6. Use
Go To Negative Voltage
and
to
reverse the voltage polarity.
Use the lowest resistance
reading of the two numbers
for your measurements.
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37
Measurement Functions
Toolbox
3M™ Dynatel™ Advanced Modular System 965AMS
Use the Toolbox
to: (1) view saved test results,
(2) perform a self calibrate, (3) use the Ohms to Distance
calculator, (4) use Internet Explorer and (5) Upload results to the
965AMS Results Manager.
Toolbox>Stored Results
The Stored Results function allows you to review the results of
previously saved tests.
Toolbox>Stored Results>Operation
1. Press the blue
key to
enter the Toolbox function.
Use the up and down arrow
keys to select the Stored
Results function. Press
OK
to save your choice.
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38
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
Toolbox>Stored Results>Operation
2. If one or more test results
have been stored, the ID
number for each will be
displayed.
The ID number is like a file
folder and each test result
is like a file. The name of
the file is the time and date
stamp that is generated by
the tester.
View
Press
to see the list
of files.
3. This screen shows the
contents of the file.
Delete Result
Press
to
delete one file or press
Delete Folder
to delete all
files in the folder.
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39
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
Toolbox>Self-Calibrate
The Self-Calibrate function will verify that all of the internal
circuits and test leads are operating properly. Use self-calibrate:
•
After the first full battery charge before you put the tester in
service for the first time.
•
Anytime the working temperature changes by more than
35°F (20°C). Calibrate the 965AMS tester at the same
temperature at which it will be used.
•
After changing the batteries, or anytime the battery pack
completely discharges.
Toolbox>Self-Calibrate>Hook-Up
RED
GRN
BLK
YEL
BLU
All five leads are shorted together.
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40
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
Toolbox>Self-Calibrate>Operation
1. Press the blue
key to
enter the Toolbox function.
2. Use the up and down arrow
keys to select the Self-
Calibrate function. Press
OK
to save your choice.
3. The calibration may take up
to 1 minute to complete.
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41
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
Toolbox>Ohms-to-Distance Calculator
Use this function to convert from Ohms to Distance or Distance
to Ohms based on temperature and wire gauge.
Toolbox>Ohms-to-Distance Calculator>Operation
1. Press the blue
key to
enter the Toolbox function.
2. Use the up and down arrow
keys to select the Ohms-to-
Distance Calculator. Press
OK
to save your choice.
3. Use the blue keys to enter
the Ohms value. Press
Select
to save and highlight
the wire gauge selection.
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42
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
Toolbox>Ohms-to-Distance Calculator>Operation
4. Use the up and down
arrow keys to select the
Select
wire gauge. Press
to save and highlight the
temperature field.
5. Use the blue keys to enter
the temperature.
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43
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
Toolbox>Ohms-to-Distance Calculator>Operation
Convert
6. Press
to find the
distance.
Distance to Ohms
7. Select
if you want to convert a
distance to an Ohms value.
Internet Explorer
1. Internet Explorer is
available on the VDSL2
module.
2. Use the up and down arrow
keys to select Internet
OK
Explorer. Press
to
save your choice.
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44
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
Toolbox>965AMS Results Manager
The 965AMS tester uses the 965AMS Results Manager to
upload and convert files from the tester. The following files are
supported by the 965AMS Results Manager:
•
•
•
•
•
•
Single Trace TDR
Active POTS Autotests
Vacant POTS Autotests
Wideband Autotests
xDSL Link Metrics
xDSL Bin Graphs
Note: Only results listed above will be converted using the
965AMS Results Manager.
Toolbox>965AMS Results Manager>Software Installation
Visit www.3m.com/dynatel to find the latest 965AMS Results
Manager.
You will need to install the following software before using the
Results Manager:
1. The following Microsoft software:
a. DotNetFX 2.0 or higher
b. Activesync 4.2 or higher
Note: Visit www.microsoft.com and search for each file
download.
2. The following 3M software will be needed.
a. 3M_Usb_Driver
b. 965AMS Results Manager
Note: Visit www.3m.com/dynatel to download the files.
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45
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
Toolbox>965AMS Results Manager>Connections
1. Turn on the 965AMS tester and allow the unit to boot up.
2. Connect the 965AMS tester to power.
3. Connect the 965AMS tester to the PC via the USB to 15-pin
cable.
Note: If the “Welcome to Found New Hardware Wizard”
window appears then select “No, not this time” when asked
about connecting to Windows Update.
4. Select “No” when prompted to Set Up a Partnership.
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46
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
Toolbox>965AMS Results Manager>Copying Files
To copy files that are saved in a 3M Dynatel 965AMS:
1. Click on the file labelled 965AMS_Results_Manager.exe.
2. Press the Copy All XML_Results Files From 965AMS
to PC.
3. You can also delete all the files on the PC.
Note: Wait until you have verified that you are finished with
the files before deleting.
4. After you have selected a directory to save the files you
will see a progress bar and a notification of completion
when finished.
Toolbox>965AMS Results Manager>Converting Upgraded Files
To convert your saved files to HTML:
1. Start the 965AMS Results Manager.
2. Click on the tab labeled “Files on PC.”
3. Press the “Convert XML Results Files on PC to HTML for
viewing.”
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47
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
Opens
Opens
measures the distance to an “open” circuit. This
could be a broken wire, a cut pair or the end of the circuit.
Opens>Hook Up
RED
GRN
BLK
Ring (B)
Ground (Earth)
Tip (A)
Opens>Operation
1. Press the blue
key to enter the Opens
measurement function.
Setup
2. Press
to enter the
Setup menu.
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48
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
Opens>Operation
3. Use the up and down arrow
keys to choose the type of
cable that best describes
OK
your cable. Press
save your choice.
to
4. This screen displays the
T-R distance in the larger
active measurement box.
Tip Gnd
Press
to display
the T-G distance.
5. The T-R measurement will
be saved on the screen in
a smaller box until a new
measurement updates the
screen.
Ring Gnd
Press
to display
the R-G distance.
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49
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
Opens>Operation
6. The T-G measurement will
be saved on the screen in
a smaller box until a new
measurement updates the
screen.
7. All measurements are erased when you exit this function.
Normal Range: A good pair should have the T-G and R-G
within about 2% of each other. If they are not within 2%, the
shortest distance will be the location of the fault and the other
distances will not provide accurate distances. Typically this will
be an open ground bond or a broken Tip or Ring.
Note: “Opens” is more accurate if other cable pairs are active.
If other pairs are not active, short at least 30% of the inactive
pairs to the cable shield.
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50
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
Opens>Calibrate Cable
Use this function to measure the capacitance of a known good
pair within a cable of known length. This value can be used as
a ‘Calibrated Cable’(or ‘reference’) to find the distance to an
‘open’ on the same or similar cable.
Setup
1. Press
.
Calibrate Cable
2. Press
.
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51
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
Opens>Calibrate Cable
3. Use the blue keys to enter
the known distance.
Measure
Press
.
4. The screen will display the
measured capacitance per
distance for the reference
pair.
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52
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
Tone
Use Tone
to send a tone on a pair.
Tone>Set-Up
RED
GRN
BLK
Ring (B)
Ground (Earth)
Tip (A)
Tone>Operation
1. Press the blue
key to
enter the Tone function.
2. Use the up and down
arrow keys to highlight the
frequency that you want to
use.
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53
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
Tone>Operation
Send Tone
3. Press
tone.
to send the
Stop Tone
4. Press
tone.
to stop the
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54
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
Tone>Edit The Frequency Of A Tone
There are 10 frequencies that can be stored in memory. If you
need a different frequency you can edit any of the displayed
frequencies and change to a new frequency.
1. Use the up and down arrow
keys to select one of the
frequencies to change.
2. Press Setup to adjust the
highlighted selection with
the following frequency
range:
ID - 200 Hz and 1,000 Hz
Precision - 200 Hz and
19,999 Hz
Wideband (965AMS Pro
tester 2) - 20 kHz and 2200
kHz.
(965AMS Pro 30 tester) -
20 kHz and 30 MHz.
3. For this example we will
replace 196 kHz with
138 kHz. Use the up and
down arrow keys to select
Wideband Tone.
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55
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
Tone>Edit The Frequency Of A Tone
4. Use the blue keys to enter
the frequency in kHz.
OK
5. Press
.
Tone>Applications
The Tone function can be used for three applications: ID Tone,
Precision Tone and Wideband Tone.
Tone>Applications>ID Tone
1. Use the ID Tone for pair identification and tone coiling.
2. The ID tone is always an interrupted tone.
3. The frequency is adjustable between 200 Hz and 1,000 Hz.
4. The 965AMS tester automatically goes off-hook when an ID
tone is sent.
5. The volume control on the 965AMS tester controls the
volume you hear, but the output to the far end is set at a
fixed level.
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56
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
Tone>Applications>Precision Tone
1. Use the Precision Tone to send a tone.
2. Use another 965AMS tester to receive the tone. Press the
Loss
blue
key, then select
.
3. The output frequency of the Precision tone is adjustable
between 200Hz and 19,999Hz.
4. The output level range is –20dBm to +1dBm.
5. The most common frequencies for POTS lines are 404Hz,
1004Hz and 2804Hz.
6. The impedance is fixed at 600Ω.
Send Tone
7. Press
8. Press
to send the Precision tone.
to stop the Precision tone.
Stop Tone
Tone>Application>Wideband Tone
1. Use the Wideband Tone to send a tone to the other end of a
wideband circuit to measure the signal loss.
2. Use another 965AMS tester to receive the tone.
DSL Loss
3. Press the blue
key, then select
.
4. The output frequency of the Wideband tone is adjustable
between 20kHz and 2200kHz.
5. The output level is fixed at 0dBm.
6. The impedance can be set to 100Ω or 135Ω.
Send Tone
7. Press
8. Press
to send the wideband tone.
to stop the wideband tone.
Stop Tone
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57
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
RFL (Resistance Fault Locate)
Use RFL
to find the distance to a short or ground.
Important Note: You must first use the Auto test
, or the
Ohmmeter
, to determine the type of fault.
1. There are two types of hook-ups, Separate Pair and Single
Pair. Separate Pair is more accurate, but it requires hooking
up more wires. The “Good” wires can be any gauge and any
length. As an example, the Good wires can be jumper wire.
Separate Pair is recommended for applications where you
have a short or ground in an aerial cable or a direct buried
cable and you want to find the fault the first measurement.
2. Single Pair requires that the “Good” wire is the same gauge
and length as the faulted wire. Single Pair is appropriate for
situations where you are looking for the fault to be in the
nearest pedestal.
3. RFL has the ability to find the distance to a short or ground
using a single section of cable or a section with multiple
gauges. Select Single- or Multi-section for your situation.
RFL>Hook-Up
There are ten possible scenarios for connecting a 965AMS tester
to use the RFL function:
Tip-Ground Separate Pair
GRN
BLK
YEL
BLU
Ground (Earth)
Tip (A) 1/Fault
Ring (B) 2/Good
Tip (A) 2/Good
Fault
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58
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
RFL>Hook-Up
Ring-Ground Separate Pair
RED
Ring (B) 1/Fault
Fault
GRN
Ground (Earth)
YEL
BLU
Ring (B) 2/Good
Tip (A) 2/Good
Short Separate Pair
RED
Ring (B) 1/Fault
Fault
BLK
YEL
BLU
Tip (A) 1/Fault
Ring (B) 2/Good
Tip (A) 2/Good
Tip-Cross Separate Pair
GRN
BLK
YEL
BLU
Ground (Earth)
Tip (A) 1/Fault
Ring (B) 2/Good
Tip (A) 2/Good
Fault
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59
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
RFL>Hook-Up
Ring-Cross Separate Pair
RED
Ring (B) 1/Fault
Fault
GRN
Ground (Earth)
YEL
BLU
Ring (B) 2/Good
Tip (A) 2/Good
Tip-Ground Single Pair
RED
Ring (B)/Good
Ground/Earth
Tip (A)/Fault
GRN
BLK
Fault
Ring-Ground Single Pair
RED
Ring (B)/Fault
Ground (Earth)
Tip (A)/Good
Fault
GRN
BLK
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60
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
RFL>Hook-Up
Short Single Pair
RED
BLK
BLU
Ring (B)/Fault
Tip (A)/Fault
Good
Fault
Tip-Cross Single Pair
RED
GRN
BLK
Ring (B)1/Good
Ground/Earth
Tip (A)1/Fault
Fault
Ring-Cross Single Pair
RED
GRN
BLK
Ring (B)1
Ground/Earth
Tip (A)1
Fault
RFL>Separate-Pair, Single-Section Operation
1. Use the Auto test
the Ohmmeter
, or
, to
determine the type of fault.
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61
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
RFL>Separate-Pair, Single-Section Operation
2. Press the blue key to
enter the RFL function.
Select
Press
until the Fault
section is highlighted. Use
the up and down arrow keys
to select the type of fault
that you have. The options
include:
Tip Cross, Ring Cross, Wet
Pulp, T-G, R-G, Short
This example will show a
Ring-Ground fault.
Select
Press
to move to
the Pair section.
3. Use the up and down arrow
keys to select Separate Pair.
Select
Press
to move to
the Multiple-Single section.
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62
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
RFL>Separate-Pair, Single-Section Operation
4. Use the up and down
arrow keys to select Single
Section.
Setup
5. Press
to choose the
measurement parameters.
6. The first parameter is
the gauge. Use the Up
and Down arrow keys to
highlight the gauge of your
cable.
Select
Press
to choose the
cable length.
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63
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
RFL>Separate-Pair, Single-Section Operation
Special Requirement: Enter
the cable temperature or the
length, but not both. Only one
parameter can be entered.
There must be one unknown to
solve the calculation.
For this example, we will use
the cable temperature as the
known value and the length
will not be entered.
Unknown Length
7. Press
to enter an unknown
length and highlight the
Temperature section.
8. Enter the temperature using
the blue keys.
OK
Press
to return to the
main RFL screen.
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64
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
RFL>Separate-Pair, Single-Section Operation
9. Press to review the
Test
settings.
10. This screen shows the
test lead hook-ups and the
settings you have selected.
Start
Press
test.
to begin the
11. If the hook-up is not
correct, you will see an
error message on the wiring
diagram at the point of the
error.
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65
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
RFL>Separate-Pair, Single-Section Operation
12. During the measurement
process, a bar graph of the
null voltage for DTS and
then for DTF will be visible
on the screen.
13. The results of the
measurements are displayed
on the screen.
DTS is the distance to the
strap.
DTF is the distance to the
fault.
DSTF is the distance from
the strap to the fault.
This screen also displays
the value of the fault.
In some situations it may
be more helpful to use the
resistance values instead of
the distance values. Press
Convert to ohms
to use the
resistance values.
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66
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
RFL>Separate-Pair, Single-Section Operation
Convert to distance
14. Press
to
convert the resistance back
to distance.
RFL>Separate-Pair, Multi-Section Operation
1. Use the Auto test
the Ohmmeter
, or
, to
determine the type of fault.
2. Press the blue key to
enter the RFL function.
Select
Press
until the Fault
section is highlighted. Use
the up and down arrow keys
to select the type of fault
that you have. The options
include:
Tip Cross, Ring Cross, Wet
Pulp, T-G, R-G, Short
This example will show a
Ring-Ground fault.
Select
Press
to move to
the Pair section.
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67
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
RFL>Separate-Pair, Multi-Section Operation
3. Use the up and down arrow
keys to select Separate Pair.
Select
Press
to move to
the Multiple-Single section.
4. Use the up and down arrow
keys to select Multiple
sections of cable that have
more than one gauge.
Setup
5. Press
to define the
sections.
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68
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
RFL>Separate-Pair, Multi-Section Operation
6. Use the up and down
arrow keys to select a
Edit Section
section. Press
to choose the measurement
parameters.
7. The first parameter is
the gauge. Use the Up
and Down arrow keys to
highlight the gauge of your
cable.
Select
Press
to highlight
the section length section.
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69
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
RFL>Separate-Pair, Multi-Section Operation
8. Use the blue keys to enter
the section length.
Select
Press
to move to
the Temp section.
9. Use the blue keys to enter
the cable temperature.
OK
Press
to return to the
Multiple Gauge screen.
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70
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
RFL>Separate-Pair, Multi-Section Operation
10. Use the up and down arrow
keys to select the next
Edit Section
section. Press
to choose the measurement
parameters.
11. You can add a load coil
to the calculations. Press
Load Coil
to add the H88
load coil to the section.
You can add as many load
coils as you need, but each
one must be in a different
section on the screen.
OK
12. Press
to store the
load coil and return to the
Multiple Gauge screen.
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71
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
RFL>Separate-Pair, Multi-Section Operation
13. Use the up and down arrow
keys to select the next
Edit Section
section. Press
to choose the measurement
parameters.
14. Use the Up and Down
arrow keys to highlight the
gauge of your cable.
Select
Press
to highlight
the section length section.
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72
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
RFL>Separate-Pair, Multi-Section Operation
Special Requirement: Enter
the cable temperature or the
length, but not both. Only one
parameter can be entered.
There must be one unknown to
solve the calculation.
For this example, we will use
the cable temperature as the
known value and the length
will not be entered.
Unknown Length
15. Press
to
enter an unknown length
and move to the Temp
section.
16. Use the blue keys to enter
the cable temperature.
OK
Press
to return to the
Multiple Gauge screen.
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73
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
RFL>Separate-Pair, Multi-Section Operation
OK
17. Press
again to return
to the main RFL screen.
18. Press
to review the
Test
settings.
19. This screen shows the
test lead hook-ups and the
settings you have selected.
Start
Press
test.
to begin the
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74
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
RFL>Separate-Pair, Multi-Section Operation
20. If the hook-up is not
correct, you will see an
error message on the wiring
diagram at the point of the
error.
21. During the measurement
process, a bar graph of the
null voltage for DTS and
then for DTF will be visible
on the screen.
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75
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
RFL>Separate-Pair, Multi-Section Operation
22. The results of the
measurements are displayed
on the screen.
DTS is the distance to the
strap.
DTF is the distance to the
fault.
DSTF is the distance from
the strap to the fault.
This screen also displays
the value of the fault.
In some situations it may
be more helpful to use the
resistance values instead of
the distance values. Press
Convert to ohms
to use the
resistance values.
Convert to distance
23. Press
to
convert the resistance back
to distance.
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76
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
RFL>Single-Pair, Single-Section Operation
1. Use the Auto test
the Ohmmeter
, or
, to
determine the type of fault.
2. Press the blue key to
enter the RFL function.
Select
Press
until the Fault
section is highlighted. Use
the up and down arrow keys
to select the type of fault
that you have. The options
include:
Tip Cross, Ring Cross, Wet
Pulp, T-G, R-G, Short
This example will show a
Ring-Ground fault.
Select
Press
to move to
the Pair section.
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77
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
RFL>Single-Pair, Single-Section Operation
3. Use the up and down arrow
keys to select Single Pair.
Select
Press
to move to
the Multiple-Single section.
4. Use the up and down
arrow keys to select Single
Section.
Setup
5. Press
to choose the
measurement parameters.
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78
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
RFL>Single-Pair, Single-Section Operation
6. The first parameter is
the gauge. Use the Up
and Down arrow keys to
highlight the gauge of your
cable.
Select
Press
to choose the
cable length.
Special Requirement: Enter
the cable temperature or the
length, but not both. Only one
parameter can be entered.
There must be one unknown to
solve the calculation.
For this example, we will use
the cable temperature as the
known value and the length
will not be entered.
Unknown Length
7. Press
to
enter an unknown length
and move to the Temp
section.
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79
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
RFL>Single-Pair, Single-Section Operation
8. Enter the temperature using
the blue keys.
OK
Press
to return to the
main RFL screen.
9. Press
to review the
Test
settings.
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80
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
RFL>Single-Pair, Single-Section Operation
10. This screen shows the
test lead hook-ups and the
settings you have selected.
Start
Press
test.
to begin the
11. If the hook-up is not
correct, you will see an
error message on the wiring
diagram at the point of the
error.
12. During the measurement
process, a bar graph of the
null voltage for DTS and
then for DTF will be visible
on the screen.
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81
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
RFL>Single-Pair, Single-Section Operation
13. The results of the
measurements are displayed
on the screen.
DTS is the distance to the
strap.
DTF is the distance to the
fault.
DSTF is the distance from
the strap to the fault.
This screen also displays
the value of the fault.
In some situations it may
be more helpful to use the
resistance values instead of
the distance values. Press
Convert to ohms
to use the
resistance values.
Convert to distance
14. Press
to
convert the resistance back
to distance.
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82
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
RFL>Single Pair, Multi-Section Operation
1. Use the Auto test
the Ohmmeter
, or
, to
determine the type of fault.
2. Press the blue key to
enter the RFL function.
Select
Press
until the up
and down arrow keys are in
the Fault section. Use the
up and down arrow keys
to select the type of fault
that you have. The options
include:
Tip Cross, Ring Cross, Wet
Pulp, T-G, R-G, Short
This example will show a
Ring-Ground fault.
Select
Press
to move to
the Pair section.
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83
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
RFL>Single Pair, Multi-Section Operation
3. Use the up and down arrow
keys to select Single Pair.
Select
Press
to move to
the Multiple-Single section.
4. Use the up and down arrow
keys to select Multiple
sections of cable that have
more that one gauge.
Setup
5. Press
to choose the
measurement parameters.
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84
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
RFL>Single Pair, Multi-Section Operation
6. Use the up and down
arrow keys to select a
Edit Section
section. Press
to choose the measurement
parameters.
7. The first parameter is
the gauge. Use the Up
and Down arrow keys to
highlight the gauge of your
cable.
Select
Press
to highlight
the section length section.
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85
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
RFL>Single Pair, Multi-Section Operation
8. Use the blue keys to enter
the section length.
Select
Press
to move to
the Temp section.
9. Use the blue keys to enter
the cable temperature.
OK
Press
to return to the
Multiple Gauge screen.
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86
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
RFL>Single Pair, Multi-Section Operation
10. Use the up and down arrow
keys to select the next
Edit Section
section. Press
to choose the measurement
parameters.
11. You can add a load coil
to the calculations. Press
Load Coil
to add the load
coil to the section. You
can add as many load
coils as you need, but each
one must be in a different
section on the screen.
OK
12. Press
to store the
load coil and return to the
Multiple Gauge screen.
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87
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
RFL>Single Pair, Multi-Section Operation
13. Use the up and down arrow
keys to select the next
Edit Section
section. Press
to choose the measurement
parameters.
14. Use the Up and Down
arrow keys to highlight the
gauge of your cable.
Select
Press
to highlight
the section length section.
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88
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
RFL>Single Pair, Multi-Section Operation
Special Requirement: Enter
the cable temperature or the
length, but not both. Only one
parameter can be entered.
There must be one unknown to
solve the calculation.
For this example, we will use
the cable temperature as the
known value and the length
will not be entered.
Unknown Length
15. Press
to
enter an unknown length
and move to the Temp
section.
16. Use the blue keys to enter
the cable temperature.
OK
Press
to return to the
Multiple Gauge screen.
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Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
RFL>Single Pair, Multi-Section Operation
OK
17. Press
again to return
to the main RFL screen.
Test
18. Press
to review the
settings.
19. This screen shows the
test lead hook-ups and the
settings you have selected.
Start
Press
test.
to begin the
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90
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
RFL>Single Pair, Multi-Section Operation
20. If the hook-up is not
correct, you will see an
error message on the wiring
diagram at the point of the
error.
21. During the measurement
process, a bar graph of the
null voltage for DTS and
then for DTF will be visible
on the screen.
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Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
RFL>Single Pair, Multi-Section Operation
22. The results of the
measurements are displayed
on the screen.
DTS is the distance to the
strap.
DTF is the distance to the
fault.
DSTF is the distance from
the strap to the fault.
This screen also displays
the value of the fault.
In some situations it may
be more helpful to use the
resistance values instead of
the distance values. Press
Convert to ohms
to use the
resistance values.
Convert to distance
23. Press
to
convert the resistance back
to distance.
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92
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
RFL>Wet Pulp
Use this function to find the approximate distance to a resistance
fault when both wires in a pair are faulted at the same place
and a separate good pair or a single common conductor is not
available.
RFL>Wet Pulp>Hook-Up
RED
GRN
BLK
Wire With Lower Resistance Value
Common/Ground
Wire With Higher Resistance Value
1. The resistance faults must be common to the reference
(Green) conductor. Use the ohmmeter function to measure
the resistance on each side of the pair to the reference
conductor.
2. The lower value fault should be connected to the Red test
lead.
3. The higher value fault should be connected to the Black test
lead.
4. The Green test lead should be connected to the reference
conductor, usually the shield or ground.
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93
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
RFL>Wet Pulp> Requirements
Note: All of the following conditions must be met or this
function does not apply:
1. One fault must be at least twice the ohms value of the other
fault. For example, a 5 kΩf ault has twice the value of a
10 kΩfault.
2. The sum of both faults must be at least 100 times the loop
resistance of the pair. For example, if the loop resistance is
50 Ω, the sum of the faults must be 5 kΩor greater. You may
continue with the test, but the results may have a reduced
accuracy.
3. The 965AMS checks to see if the resistance of the loop
is less than 7 kΩ. If the resistance is greater than 7 kΩ,
the distance to strap may be too long or the strap is not
connected,
RFL>Wet Pulp>Operation
1. Press the blue
key to
enter the RFL function.
Use the up and down keys
to select Wet Pulp.
Setup
Press
to select the
gauge of the pair.
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94
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
RFL>Wet Pulp>Operation
2. Use the up and down arrow
keys to select the gauge of
the pair.
Select
Press
or
Unknown Temp.
to highlight
the temperature field.
3. Use the blue keypad to
enter the cable temperature.
OK
Press
to continue.
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Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
RFL>Wet Pulp>Operation
4. The Wet Pulp test first
makes a measurement with
the far-end open.
Start
Press
to start the test.
5. Strap the pair at the far end,
Continue
then press
.
Note: The “Opens Ratio” value
displayed on the screen is the
ratio of R1/(R2+R1) times
100. This value is used by
some companies as part of the
measurement. It is not needed
to calculate the distance to the
fault.
6. The test results are shown
in ohms.
Dist.
Press
to convert the
ohms to the distance to the
fault.
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3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
RFL>Wet Pulp>Operation
7. DTS—Distance to the strap
(far end).
DTF—Distance to the fault.
DSTF—Distance from the
strap to the fault.
Avg. Result
Press
to view a
summary of test results.
8. Use the results of this test
to find the distance or run
the test multiple times and
the tester will average the
distances.
RFL>Wet Pulp>Error Screens
1. Swap the Red and Black
test leads.
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Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
RFL>Wet Pulp>Error Screens
2. The strap at the far-end is
open. There should be a
solid short at the far-end.
3. The tester checks to see
that the sum of the faults
is more than 100 times the
loop resistance. You may
Continue
press
with the
test, but the results may
have a reduced accuracy.
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98
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
DSL (Digital Subscriber Line)
The DSL
functions include: DSL Loss, DSL Noise, DSL
Spectrum Analyzer, Resistive Balance, and DSL Impulse Noise.
DSL>DSL Loss
Use DSL Loss function to measure the amount of loss in a
circuit at a specific frequency. This is typically accomplished by
sending tone with another 965AMS tester, a 3M™ Dynatel™ Far
End Device (FED), or test equipment that is capable of sending
wideband tone from 20 kHz to 30 MHz.
DSL>DSL Loss>Hook-Up
RED
Ring (A)
Tip (B)
BLK
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Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
DSL>DSL Loss>Operation
1. Press the blue DSL
key
to enter the DSL function.
Use the up and down arrow
keys to select DSL Loss.
Use a tone source at the
far end that is capable of
sending a known output
level such as a 965AMS
tester. Use 0dBm as the
output level or follow your
method of test.
DSL Setup
2. Press
to select
the type of service.
3. Use the up and down
arrow keys to select the
type of service that you are
measuring.
OK
4. Press
when finished.
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100
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
DSL>DSL Loss>Operation
OK
5. Press
to make the
measurement.
6. The results of the
measurement will be
displayed as a –dBm level
at a specific frequency.
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Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
DSL>DSL Loss>Application Notes
DSL Loss measures the signal lost from a tone transmitter
(965AMS tester, 3M™ Dynatel™ Far End Device (FED) or other
capable device) to the measuring 965AMS.
High loss is an indication of:
1. A loop that is too long for the potential service.
2. Bridge tap.
To get a complete picture of loss, it is recommended that you
use a FED device that will generate a sweep of frequency for the
service type. The sweep will indicate either a good circuit, high
loss or dips in the reading can be an indication of bridge tap.
The image below is a sweep that was performed with a 965AMS
tester, a 3M™ Dynatel™ Far End Device FED II and the selected
service was ADSL2.
Look at the before and after for these two readings. When
the bridge tap is removed then the slope no longer displays
frequency dips.
With 500 feet of bridge tap
With bridge tap removed
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3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
DSL>DSL Noise
Use DSL Noise function to measure the Longitudinal or Metallic
Noise on a DSL line.
DSL>DSL Noise>Hook-Up
RED
GRN
BLK
Ring (B)
Ground (Earth)
Tip (A)
DSL>DSL Noise>Operation
1. Press the blue DSL
key
to enter the DSL function.
Use the up and down arrow
keys to select DSL Noise.
DSL Setup
2. Press
to select
the type of service.
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Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
DSL>DSL Noise>Operation
3. Use the up and down
arrow keys to select the
type of service that you are
measuring.
OK
4. Press
when finished.
OK
5. Press
to start the
measurement for DSL
noise.
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3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
DSL>DSL Noise>Operation
Select Longitudinal
6. Press
to
measure longitudinal noise.
Select Metallic
7. Press
to
measure metallic noise.
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Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
DSL>DSL Noise>Application Notes
Noise can affect wideband services by taking up valuable
bandwidth and reducing speed. Symptoms of high noise can be
data errors and loss of connection. The 965AMS tester measures
longitudinal as well as metallic noise. Having high noise in
either of these tests will prompt you to look at the circuit with a
Spectrum Analyzer to identify the source.
Longitudinal Noise is a
RED
GRN
BLK
Ring (B) 1
measured between Tip [A] and
Ring [B] (shorted internally)
and the shield/ground.
Ground (Earth)
Tip (A) 1
Longitudinal Noise measures
influences from outside the
cable (power induction,
AM radio or other outside
frequencies).
Shorted Internally
Metallic Noise is a measured
between Tip [A] and Ring [B].
RED
BLK
Ring (A)
Tip (B)
Metallic Noise measures the
active noise on a pair.
Both tests are performed through filters based on the service that
is selected in Setup.
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106
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
DSL>DSL Spectrum Analyzer
Use DSL Spectrum Analyzer (SA) to display a graph of useful
signals and interference/noise at specific frequencies up to
30 MHz.
DSL>DSL Spectrum Analyzer>Hook-Up
RED
Ring (A)
BLK
Tip (B)
DSL>DSL Spectrum Analyzer>Operation
1. Press the blue DSL key
to enter the DSL function.
Use the up and down arrow
keys to select DSL Spec.
Analyzer.
OK
2. Press
.
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Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
DSL>DSL Spectrum Analyzer>Operation
Span
3. Press
to change the
frequency range.
4. Use the left and right arrow
keys to move the cursor.
The cursor position will
display the frequency and
the signal level.
5. Once you have selected a span of 1M or 2M you may add a
noise mask.
The mask is initially set to “none.” Pressing F2 or F3, the
screen will show the following masks:
ADSL Downstream
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3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
DSL>DSL Spectrum Analyzer>Operation
ADSL Upstream
T1
HDSL
ISDN
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109
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
DSL>DSL Spectrum Analyzer>Application Notes
Spectrum analysis allows you to visually see a disturbing
signal’s shape by reading and displaying the level of noise in a
frequency range.
The shape can be caused by ADSL, ISDN, HDSL, T1 or VDSL.
This chart shows the ADSL2+ spectrum with common disturbers
and chart 2 shows the VDSL spectrum with potential disturbers.
Center Frequencies
T1
AM Radio 680 kHz+
DDS ISDN
HDSL
28
kHz kHz
40
196
kHz
772
kHz
20
ADSL
138 140
ADSL
Downstream
1100
kHz
ADSL
Downstream
2200
kHz
kHz Upstream kHz kHz
Nyquist
Frequency
VDSL Spectrum
US 0
DS 1
US 1
DS 2
US 2
US 2
1.1
MHz
3.75
MHz
5.2
MHz
8.5
MHz
12
MHz
30
MHz
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3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
DSL>Resistance Balance
Use Resistance Balance to measure the:
•
•
•
•
Loop Resistance between the Red and Black test leads.
Resistance of each conductor to the Green test lead.
Resistance Difference between the two conductors.
Percentage of Resistance Difference.
DSL>Resistance Balance>Hook-Up
RED
GRN
BLK
Ring (B) 1
Reference
Tip (A) 1
DSL>Resistance Balance>Operation
1. Press the blue DSL key
to enter the DSL function.
Use the up and down arrow
keys to select Resistance
Balance.
OK
Press
.
2. Connect the strap at a ‘far-
end’ access point. The strap
should be connected to all
three of the conductors at
the far end.
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Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
DSL>Resistance Balance>Operation
Test
3. Press
test.
to start the
DSL>Resistance Balance>Recommended Values
Service
POTS
% Ohms Difference
3%
Wideband
1%
Parameter
Resistance Balance
OK
<1%
Marginal
1%–5%
Not OK
>5%
DSL>Resistance Balance>Application Notes
The resistance balance test is used to identify a high resistance
open or a bad splice.
The test will also identify a loop that is resistively too long for
the selected autotest.
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112
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
DSL>DSL Impulse Noise
Use Impulse Noise to measure short spikes of random amplitude
and random frequency. These short bursts can damage data
transmission if the amplitude and frequency are spiking into
used transmission paths. The 965AMS tester measures spikes
eight times per second.
DSL>DSL Impulse Noise>Hook-Up
RED
GRN
BLK
Ring (B)
Ground (Earth)
Tip (A)
DSL>DSL Impulse Noise>Operation
1. Press the blue DSL key
to enter the DSL function.
Use the up and down arrow
keys to select Impulse
Noise.
DSL Setup
2. Press
to select
the type of service.
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Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
DSL>DSL Impulse Noise>Operation
3. Use the up and down
arrow keys to select the
type of service that you are
measuring.
OK
4. Press
when finished.
OK
5. Press
to start the
Impulse Noise test.
Setup
6. Press
to select:
Count Threshold
Time
Spread
Metallic or Longitudinal
OK
7. Press
when finished.
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114
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
DSL>DSL Impulse Noise>Operation
Restart
8. Press
to begin a
new test.
Setup
9. Press
setup screen.
to return to the
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Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
DSL>DSL Impulse Noise>Application Notes
Since impulse hits, noise and other power related interference
can fluctuate during the day you have the option of measuring
three different levels. If you traditionally measure Impulse hits at
a threshold of 40 dBrn, then select a count threshold of 32 and a
spread of 2 dB, then you will be able to see any hits that exceed
32, 36 or 40. Although this circuit will pass at 40, you will be
able to see if there is noise just under the threshold that can
appear later with a change in power usage or plant conditions.
Selected a spread of 4 dB and a threshold of 32 would allow you
to count hits that exceed 32, 36 and 40.
Check with your DSLAM vendor regarding excessive hits for a
circuit. Different DLSAM vendors have settings to make use of
buffers (dynamic memory) to compensate for errors that can be
caused by impulse noise.
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116
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
TDR
Use the Time Domain Reflectometer (TDR)
function to
map the high-frequency impedance of the cable along its length.
The display shows opens, load coils, splits, wet sections, splices,
gauge changes, heavy shorts and any other physical deviation
from a perfect cable. Each of these events have their own unique
signature. A user-controlled vertical cursor is used to measure
the distance to an event.
TDR>Event Recognition
“Events” are the “dips” and “peaks” seen on the screen caused
by faults or changes in the pair.
“Peak” Events
1. Launch Pulse: The first peak on the screen is the “launch
pulse” which occurs where the transition from the tester to
the test leads occurs.
2. Open: A clean or partial open will show up as a peak on
the screen. The “cleaner” the open, the taller the peak. A
complete open will be the tallest peak (other than the launch
pulse).You can not see events past a complete open.
3. Load Coil: A load coil looks very similar to an open. If
you think there is a load coil on the pair, use the Load Coil
function (in the POTS test) to verify its presence. You can
not see events past a traditional load coil.
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117
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
“Dip” Events
1. Fault: A resistance fault will show as a dip on screen. The
lower the value of resistance, the lower the dip.
2. Short: A short (or zero-Ohm resistance fault) will show up
as the lowest dip on the screen. You cannot see events past a
short.
3. BridgeTap: A bridge tap will look like a small dip where
the bridge tap begins. The end of the bridge tap looks like
an upward event. The distance between the two events is the
length of the bridge tap. The start of a bridge tap looks like
a resistance fault. Use the ohms measurement function to
measure the resistance on the pair. If there is no resistance,
and you see a dip followed by a peak, you might suspect a
bridge tap.
Fault Icons
Faults are represented on the screen with icons:
Load Coil
Open
Short
Bridge Tap
Event Found
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118
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
TDR>Setup
1. Press the blue
key to
enter the TDR mode.
Setup
2. Press
.
3. Use the up and down arrow
keys to select the type of
cable.
Select Gauge
Press
.
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119
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
TDR>Setup
4. Use the up and down arrow
keys to select the wire
gauge.
Select Length
Press
.
5. You can choose to start
with the shortest range each
time you enter the TDR or
the last range that you used.
Use the up and down arrow
keys to select Minimum or
Last Used range.
OK
6. Press
to return to the
TDR menu screen.
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120
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
TDR>Single Trace Mode
Single Trace Mode is used for most TDR applications. You can
use the single trace manual mode or you can use the Auto TDR
mode.
TDR>Single Trace Mode>Hook-Up
RED
Ring (A)
BLK
Tip (B)
TDR>Single Trace Mode>Operation
1. Press the blue key
to enter the TDR mode.
Use the up and down arrow
keys to select Single Trace.
OK
2. Press
trace.
to display a
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121
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
TDR>Single Trace Mode>Operation
3. This screen shows the end
of a pair at 205 feet.
4. Use the TDR Controls
section in this chapter to
see all of the parameters
that you can adjust.
5. The Auto TDR mode
automatically finds
potential faults and displays
an icon that represents
the type of fault. Press
Auto TDR
to use this
function.
6. This trace shows a resistive
fault at 219 feet.
7. The Auto TDR is not a live
trace, but you can use the
Gain, Cable length, Span
and Filter functions.
8. If you change the circuit
you must capture a new
Live TDR
trace. Press
then
Auto TDR
press
.
9. This trace shows an open at
322 feet.
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122
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
TDR>Dual Trace Mode
Dual Trace Mode is used to compare two pairs at the same
time, usually a faulted and a good pair.
TDR>Dual Trace Mode>Hook-Up
RED
Ring (B) 1
BLK
YEL
BLU
Tip (A) 1
Ring (B) 2
Tip (A) 2
TDR>Dual Trace Mode>Operation
1. Press the blue key
to enter the TDR mode.
Use the up and down arrow
keys to select Dual Trace.
OK
2. Press
trace.
to display a
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Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
TDR>Dual Trace Mode>Operation
3. The pair under test (red/
black) is displayed at the
top of the screen. The
reference pair (yellow/blue)
is displayed at the bottom
of the screen.
4. Any changes in the control
parameters affect both
traces. It is not possible
to control each trace
independently.
TDR>Differential
Use the Differential mode to display only the differences
between two pairs, usually a ‘good’ pair and a pair under test.
TDR>Differential>Hook-Up
RED
Ring (B) 1
BLK
YEL
BLU
Tip (A) 1
Ring (B) 2
Tip (A) 2
1. Connect the red and black test leads to the pair under test.
2. Connect the blue and yellow test leads to a known good pair
in the same cable. This is called the reference pair.
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124
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
TDR>Differential>Operation
1. Press the blue
key
to enter the TDR mode.
Use the up and down arrow
keys to select Differential.
OK
2. Press
trace.
to display a
3. A trace with a straight line
would indicate a perfect
match between both
pairs. This trace shows
differences between the
reference pair (blue/yellow)
and the pair under test (red/
black).
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125
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
TDR>Crosstalk
Use Crosstalk to display the amplitude and location of signals
that “cross” from one pair to the other, as could be caused by a
split.
TDR>Crosstalk>Hook-Up
RED
Ring (B) 1
BLK
YEL
BLU
Tip (A) 1
Ring (B) 2
Tip (A) 2
1. Connect the red and black test leads to the pair under test.
2. Connect the blue and yellow test leads to a pair that is
suspected of having a crosstalk problem.
TDR>Crosstalk>Operation
1. Press the blue
key
to enter the TDR mode.
Use the up and down arrow
keys to select Crosstalk.
OK
2. Press
trace.
to display a
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126
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
TDR>Crosstalk>Operation
3. The location of the
crosstalk will be shown as
an upward or downward
event.
TDR>Memory Mode
Memory Mode is used to compare a pair under test to a stored
trace in memory.
TDR>Memory Mode>Hook-Up
RED
Ring (A)
BLK
Tip (B)
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127
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
TDR>Memory Mode>Operation
1. Press the blue
key
to enter the TDR mode.
Use the up and down arrow
keys to select Memory.
OK
2. Press
.
2. The first screen in memory
mode will show a list of
the ID numbers for all
stored Single Trace TDR
traces. Use the up and down
arrows keys to highlight the
desired stored result.
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128
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
TDR>Memory Mode>Operation
View
3. Press the
key to
select the highlighted
result and display the
stored results list for that
ID number by type (TDR),
date, and time.
4. The stored trace is
displayed on the bottom of
the TDR Memory screen
and the “live” trace on the
top. Move the cursor using
the left and right arrow
keys.
5. The TDR Memory screen
defaults to the control
settings that were active
when the stored trace was
saved using the “TDR
Save” function.
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129
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
TDR>Peak Mode
Use Peak Mode to capture events that may be intermittent.
TDR>Peak Mode>Hook-Up
RED
BLK
Ring (A)
Tip (B)
TDR>Peak Mode>Operation
1. Press the blue
key
to enter the TDR mode.
Use the up and down arrow
keys to select Peak.
OK
2. Press
trace.
to display a
3. The ‘live’ trace is displayed
continuously as a normal
line. As a new maximum or
minimum trace is detected,
it will be displayed as a
thin line along with the live
trace.
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3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
TDR>Peak Mode>Operation
4. If the pair being tested
is stable (no intermittent
faults), then the minimum,
maximum and ‘live’ traces
should appear as a single
line.
5. If any of the control values
are changed, the peak
histories will be erased and
new values will begin to
display.
6. The trace with the thin line
(red arrow) shows where
the intermittent starts. The
end of the thin line does
not provide any useful
information.
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Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
TDR>Controls
Cable Length
1. The Length allows you to
set the distance from the
left side of the screen to the
right side.
The lengths that you may
use are:
100 ft
200 ft
500 ft
1,000 ft
2,000 ft
5,000 ft
10,000 ft
20, 000 ft
30,000 ft
2. The left side of the screen is usually at the test set and the
right side is the furthest distance that can be displayed with
the length selected.
Screen Pan
1. The start and stop numbers shown in the distance bar are the
distances represented at the left and right side of the screen.
2. If you move the cursor to the right side of the screen, the
screen will “pan” to the right.
3. If you move the cursor to the left side of the screen the
screen will “pan” to the left until it reaches Zero.
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3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
TDR>Controls
Filter
1. The Filter is used to reduce
external noise from the
trace.
Velocity of Propagation
1. The velocity of propagation is a measure of how fast a pulse
travels in a circuit.
2. To get the most accurate distance measurement the VP
should be set to the value for the cable type and gauge you
are testing.
3. If you do not know the VP,
we recommend you use the
TDR Setup menu. In this
menu, you will select the
type of wire you are testing
and the tester will choose
the VP.
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Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
TDR>Controls
Pulse Width
1. Pulse Width allows you to
select the width of the TDR
pulse. A longer pulse width
is required for longer range
settings.
2. The tester automatically
chooses the best pulse
width for each length
selected.
3. You can change the pulse
width independent of the
length, but we recommend
you let the tester select the
pulse width.
Gain
1. The Gain control allows
you to increase the height
and depth of events.
2. Higher gain will make
events look taller or deeper
on the screen which may
be helpful in finding small
events.
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3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
TDR>Controls
TDR Save
1. Traces can be stored in
the single trace mode.
None of the other TDR
modes can be saved. Up to
two-hundred traces can be
stored.
2. Press the
key to enter
the Save mode.
Use the blue keys to enter
an alphanumeric ID. Enter
the numbers and letters like
you would with your cell
phone memory. This could
be a single number such
as “8” or a label such as
“cable-23-pr-12”. You may
have up to 20 characters in
the label. Upper and lower
case letters are supported.
OK
3. Press
to save the file.
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Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
TDR>Controls
4. The data entered into each field will remain present for
every saved result until explicitly changed or cleared. In this
way information that is infrequently changed such as the
Tech ID does not need to be re-keyed every time. These two
fields are appended to the TDR trace results when they are
printed or stored in the PC Link software.
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136
3M™ Dynatel™ Advanced Modular System 965AMS
POTS
Measurement Functions
Tests available with the POTS key
include Loss, Noise,
Longitudinal Balance, Load Coil Counter, Caller ID, Ringers,
Level Trace, Kick Test and Voice Band Spectrum Analyzer.
POTS>Loss
Use Loss to measure the loss from the far-end of a circuit to the
near-end using a precision tone between 200 Hz and 20kHz.
Note: You must use a device at the far end to generate the tone.
This could be the milliwatt number in the central office or a
965AMS set to the tone mode.
POTS>Loss>Hook-Up
RED
GRN
BLK
Ring (B)
Ground (Earth)
Tip (A)
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Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
POTS>Loss>Operation
1. Press the blue
key to
enter POTS menu. Use the
up and down arrow keys to
select Loss.
OK
2. Press
to start the test.
3. Dial a milliwatt number.
There are 2 ways to enter
the milliwatt numbers:
1. Use the blue keys to
enter the number just
like you were dialing a
standard telephone.
Dial
Press
when you
have entered all of the
digits.
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3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
POTS>Loss>Operation
2. Or, use the memory
mode. The 965AMS
can store up to 10
numbers in the quiet
line memory list.
Setup
Press
to select
or edit numbers from
memory.
a. Use the up and down
arrow keys to find
the quiet line number
for the central office
you want to measure.
Edit Number
b. Use
to
add new numbers
or to edit existing
numbers using the
blue keys.
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Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
POTS>Loss>Operation
Select
c. Press
to
move to the DTMF
or Pulse dialing
section. Use the up
and down arrow
keys to select a
dialing method.
DTMF pulsing is
the default value.
Select
d. Press
to
move to the loop
start-ground start
section. Use the up
and down arrow
keys to select
a method. The
default is loop start.
OK
Press
to return
to the main Dial Loss
screen.
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3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
POTS>Loss>Operation
Dial
e. Press
to begin
the test.
4. Point to Point
Measurements
a. Use a 965AMS tester
or a 965DSP tester set
to the tone mode.
b. Verify that both ends
of the circuit are on the
same frequency.
c. Press Send Tone at the
sending end.
Measure
d. Press
at the
receiving end.
5. Results screen:
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Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
POTS Loss Measurement Normal Range
Parameter
Balance
Loss
OK
> 60
< 6
Marginal
50–60
6–8.5
Not OK
< 50 dB
> 8.5 dBm
> 30 dBmC
Noise
< 20
20–30
POTS>Noise
Use Noise to measure the Noise, Power Influence, and the
calculated Balance of a pair.
POTS>Noise>Hook-Up
RED
GRN
BLK
Ring (B)
Ground (Earth)
Tip (A)
POTS>Noise>Operation
1. Press the blue
key to
enter POTS menu. Use the
up and down arrow keys to
select Noise.
OK
2. Press
to start the test.
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3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
POTS>Noise>Operation
3. Enter the quiet line number
for the central office you
are calling.
There are 2 ways to enter
the quiet line numbers:
1. Use the blue keys to
enter the number just
like you were dialing a
standard telephone.
If you have a
combination milliwatt
and quiet line, enter
the number 3 as the
telephone number. This
will provide the proper
termination for the
noise measurement.
Dial
Press
when you
have entered all of the
digits.
2. Or, use the memory
mode. Up to 10
numbers can be
stored in the quiet line
memory list.
Setup
Press
to select
or edit numbers from
memory.
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Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
POTS>Noise>Operation
a. Use the up and down
arrow keys to find
the quiet line number
for the central office
you want to measure.
Edit Number
b. Use
to
add new numbers
or to edit existing
numbers using the
blue keys.
Select
c. Press
to
move to the DTMF
or Pulse dialing
section. Use the up
and down arrow
keys to select a
dialing method.
DTMF pulsing is
the default value.
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3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
POTS>Noise>Operation
Select
d. Press
to
move to the loop
start-ground start
section. Use the up
and down arrow
keys to select
a method. The
default is loop start.
OK
Press
to return
to the main Dial
Noise screen.
Dial
e. Press
to begin
the test.
4. Results screen:
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Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
POTS Noise Normal Range
Parameter
Balance
Loss
OK
> 60
< 6
Marginal
50–60
6–8.5
Not OK
< 50 dBm
> 8.5 dBm
> 30 dBmC
Noise
< 20
20–30
POTS>Longitudinal Balance
Use Longitudinal Balance to measure the active Longitudinal
Balance on the pair. This test measures the ability of the Tip and
Ring to reject noise and crosstalk.
POTS>Longitudinal Balance>Hook-Up
RED
GRN
BLK
Ring (B)
Ground (Earth)
Tip (A)
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3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
POTS>Longitudinal Balance>Operation
1. Press the blue
key
to enter the POTS menu.
Use the up and down arrow
keys to select Longitudinal
Balance.
OK
2. Press
to start the
measurement.
3. Dial a quiet line number.
There are 2 ways to enter
the quiet line numbers:
1. Use the blue keys to
enter the number just
like you were dialing a
standard telephone.
Dial
Press
when you
have entered all of the
digits.
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Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
POTS>Longitudinal Balance>Operation
2. Or, use the memory
mode. The 965AMS
can store up to 10
numbers in the
milliwatt number
memory list.
Setup
Press
to select
or edit numbers from
memory.
a. Use the up and down
arrow keys to find
the quiet line number
for the central office
you want to measure.
Edit Number
b. Use
to
add new numbers
or to edit existing
numbers using the
blue keys.
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3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
POTS>Longitudinal Balance>Operation
Select
c. Press
to
move to the DTMF
or Pulse dialing
section. Use the up
and down arrow
keys to select a
dialing method.
DTMF pulsing is
the default value.
Select
d. Press
to
move to the loop
start-ground start
section. Use the up
and down arrow
keys to select
a method. The
default is loop start.
OK
Press
to return
to the main Dial LB
screen.
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Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
POTS>Longitudinal Balance>Operation
Dial
e. Press
to begin
the test.
3. The results are displayed on
the screen.
POTS Longitudinal Balance Normal Range
Parameter
Balance
Loss
OK
> 60
< 6
Marginal
50–60
6–8.5
Not OK
< 50 dB
> 8.5 dBm
> 30 dBmC
Noise
< 20
20–30
POTS>Load Coils
The Load Coils function counts up to five load coils on the
pair and determines the distance to the first one. The distance
measurement requires that you specify the wire gauge of the
pair.
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3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
POTS>Load Coils>Hook-Up
RED
GRN
BLK
Ring (B)
Ground (Earth)
Tip (A)
POTS>Load Coils>Operation
1. Press the blue
key to
enter POTS menu. Use the
up and down arrow keys
select Load Coils.
OK
2. Press
to see the Load
Coil screen.
Setup
3. Press
to see the
Load Coil Setup Screen.
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Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
POTS>Load Coils>Operation
4. Use the up and down arrow
keys to select the correct
wire gauge.
OK
Press
to return to
Load Coil screen.
Test
5. Press
to start the test.
6. The results show 3 load
coils and the first load coil
is at a distance of 6,032
feet.
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3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
POTS>Load Coils>Operation
7. It is not necessary to have any particular length of cable
before the first load coil, but you must have at least 3,000
feet of cable after each load coil for the Load Coil function
to count properly.
POTS>Caller ID
Caller ID detects the Caller ID signal sent on the pair and
displays date, time, the calling number, the calling party name,
the signal level, and the message status.
POTS>Caller ID>Hook-Up
RED
Ring (A)
Tip (B)
BLK
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153
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
POTS>Caller ID>Operation
1. Press the blue
key
to enter the POTS menu.
Use the up and down arrow
keys to select Caller ID.
OK
2. Press
to start the test.
3. The results of the test will
be displayed on this screen.
Certain result boxes may be blank if the information is not
available.
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3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
POTS>Ringers
The Ringers function measures the capacitance associated
with one or more ringer circuits on the line. One old style
mechanical ringer has a capacitance of 0.47 µF. Newer phones
have electronic ringers that have much lower capacitance than
0.47 µF
POTS>Ringers>Hook-Up
RED
GRN
BLK
Ring (B)
Ground (Earth)
Tip (A)
POTS>Ringers>Operation
1. Press the blue
key
to enter the POTS menu.
Use the up and down arrow
keys to select Ringers.
OK
2. Press
to start the
measurement.
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Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
POTS>Ringers>Operation
3. During the measurement an
hour glass will be visible at
the bottom of the display.
When the measurement
is complete, the Ring-
Ground, Tip-Ring and
Tip-Ground ringers will be
displayed.
To display the equivalent
capacitance count, press
Display Capacitance
.
Display Ringers
4. Press
to
return to the previous view.
POTS>Level Trace
Use Level Trace to measure and display the AC impedance of
an inactive pair as a function of frequency. This test can be used
to analyze a pair for loading and bridge tap problems. This is
NOT a continuous test.
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156
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
POTS>Level Trace>Hook-Up:
RED
GRN
BLK
Ring (B)
Ground (Earth)
Tip (A)
POTS>Level Trace>Operation
1. Press the blue
key to
enter POTS menu. Use the
up and down arrow keys to
select Level Trace.
OK
Press
to start the test.
2. The result is displayed
on a graph with relative
impedance level displayed
on the y-axis (in dB) and
the frequency on the x-axis.
This trace shows a 12,000
foot line with no load coils.
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157
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
POTS>Level Trace>Operation
3. A dip in the graph indicates
the presence of a load coil.
This graph shows one load
coil.
Note: Level trace cannot
calculate the distance to the
load coil.
4. Use the left and right soft
keys to move the cursor
across the graph. As the
cursor is moved, a readout
of the signal level and
frequency will be displayed
beneath the graph. This
graph shows a circuit with
two load coils.
5. This trace shows one load
coil at 18,000 feet.
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158
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
POTS>Kick Test
Use the Kick Test function to continuously measure the voltage,
resistance and opens length on a pair.
POTS>Kick Test>Hook-Up
RED
GRN
BLK
Ring (B)
Ground (Earth)
Tip (A)
POTS>Kick Test>Operation
1. Press the blue
key to
enter POTS menu. Use the
up and down arrow keys to
select Kick Test.
OK
Press
to start the test.
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Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
POTS>Kick Test>Operation
Setup
2. Press
to enter the
type of cable.
3. Use the up and down arrow
keys to select the cable
type.
OK
Press
to start the test.
4. This screen displays the
T-R measurements.
Tip Gnd
Press
to see the
T-G measurements.
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3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
POTS>Kick Test>Operation
5. This screen displays the
T-G measurements.
Ring Gnd
Press
to see the
R-G measurements.
6. This screen displays the
R-G measurements.
POTS>Voice Band Spectrum Analyzer
Use Voice Band Spectrum Analyzer to view a graph of useful
signals and interference/noise in the low frequency range from
0 Hz to 2560 Hz.
POTS>Voice Band Spectrum Analyzer>Hook-Up
RED
GRN
BLK
Ring (B)
Ground (Earth)
Tip (A)
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161
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
POTS>Voice Band Spectrum Analyzer>Operation
1. Press the blue key
to enter the POTS menu.
Use the up and down arrow
keys to select Voiceband
SA.
OK
2. Press
to start the
measurement.
3. Move the cursor left or
right to view individual
frequencies.
Pressing F2 will toggle
between a flat filter and a
C-message weighted filter.
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162
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
Auto Test
Use Auto Test
to automatically perform the following
tests: Active POTS, Vacant POTS, Vacant WideBand and Smart
Auto Test.
Auto Test>Active POTS
Use Active POTS to perform an automatic sequence of tests on
Active POTS lines. The tests include: DC Voltage, AC Voltage,
Loop Current, Ground Resistance, Single Tone Loss, Voiceband
Noise (metallic), Voiceband Power Influence and Longitudinal
Balance.
Auto Test>Active POTS>Hook-Up
RED
GRN
BLK
Ring (B)
Ground (Earth)
Tip (A)
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Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
Auto Test>Active POTS>Operation
1. Press the blue
key
to enter the Auto Test
function. Use the up and
down arrow to select Active
POTS.
Loss Setup
2. Press
to set
up the telephone numbers
for the milliwatt line in the
central office. You can store
up to 10 different numbers
for the central offices you
work in.
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164
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
Auto Test>Active POTS>Operation
3. If you have entered
telephone numbers in the
Dial Loss function or the
Talk Set function, they will
be shown in the telephone
number section.
If you have not entered
any telephone numbers in
the Dial Loss function or
the Talk Set function you
Edit Number
can use
to
enter the telephone number
information with the blue
keys.
Select
4. Press
to move to
the DTMF or Pulse dialing
section. Use the up and
down arrow keys to select
a dialing method. DTMF is
the default value.
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Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
Auto Test>Active POTS>Operation
Select
5. Press
to move to
the loop start-ground start
section. Use the up and
down arrow keys to select a
method. The default is loop
start.
OK
Press
to return to the
main Auto Test screen.
Noise Setup
6. Press
to setup
the telephone numbers for
the quiet line termination
line in the central office.
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166
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
Auto Test>Active POTS>Operation
7. Central Office with a
combination milliwatt and
quiet line termination:
Edit Number
Press
and enter
a digit that is a valid first
digit for the central office.
This will break dialtone and
the measurement will be
taken as if it were a quiet
line termination.
8. Central Office without a
combination milliwatt and
quiet line termination:
If you have entered
telephone numbers in the
Dial Loss function or the
Talk Set function, they will
be shown in the telephone
number section.
If you have not entered
any telephone numbers in
the Dial Loss function or
the Talk Set function you
Edit Number
can use
to
enter the telephone number
information with the blue
keys.
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167
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
Auto Test>Active POTS>Operation
Select
9. Press
to move to
the DTMF or Pulse dialing
section. Use the up and
down arrow keys to select
a dialing method. DTMF is
the default value.
Select
10. Press
to move to
the loop start-ground start
section. Use the up and
down arrow keys to select a
method. The default is loop
start.
OK
Press
to return to the
main Auto Test screen.
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168
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
Auto Test>Active POTS>Operation
Test Pair 1
11. Press
to start the
Active POTS tests.
Note: The volume of the test
can be adjusted using the up
and down arrows.
12. Certain auto test results are
compared against pass/fail
limits to provide a quick-
look at the pair condition.
The pass/fail status is
indicated in the results box
by an “OK” for pass, a
“Yield” sign for marginal
and a “Stop” sign for fail.
Val.
13. Press
to see the actual
test results.
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169
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
Auto Test>Active POTS>Operation
Pass/Fail
14. Press
to see only
the OK, Yield, or Stop
symbols.
Auto Test>Vacant POTS
Use Vacant POTS to perform an automatic sequence of tests
on Vacant POTS lines. When you use the 3M™ Dynatel™ Far
End Device II 1342 or 1343, the tests include: DC Voltage, AC
Voltage, DC Resistance, Opens, % Capacitance Balance, Load
Coil, Voice Band Loss, Voice Band Noise, Power Influence,
Longitudinal Balance, Slope, Resistance Balance (loop) and
Resistance Balance (% diff).
Auto Test>Vacant POTS>Hook-Up
RED
GRN
BLK
Ring (B)
Ground (Earth)
Tip (A)
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170
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
Auto Test>Vacant POTS>Operation
1. Press the blue
key
to enter the Auto Test
function. Use the up and
down arrow keys to select
Vacant Pots.
Setup
Press
to choose the
measurement parameters.
Select
2. Press
to select the
gauge of your cable. Use
the up and down arrow
keys to select the gauge.
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171
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
Auto Test>Vacant POTS>Operation
Select
3. Press
to move to
the type of cable. Use the
up and down arrow keys to
select your type of cable.
OK
4. Press
to return to the
main Auto Test screen.
5. Using the 3M™ Dynatel™
Far End Device II can
provide more information
about your circuit. Press
Use FED
to use the far end
device.
Test Pair 1
6. Press
to start
the test.
7. The screen will display
the results of the
measurements.
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172
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
Auto Test>Vacant POTS>Operation
8. Certain auto test results are
compared against pass/fail
limits to provide a quick-
look at the pair condition.
The pass/fail status is
indicated in the results box
by an “OK” for pass, a
“Yield” sign for marginal
and a “Stop” sign for fail.
Value
9. Press
to see the
actual test results.
Pass/Fail
10. Press
to see only
the OK, Yield, or Stop
symbols.
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173
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
Auto Test>Vacant Wideband
Use Vacant Wideband to perform an automatic sequence
of tests on Vacant Wideband circuits. The tests include: DC
Voltage, AC Voltage, DC Resistance, Opens, % Capacitance
Balance, Load Coil, Wideband Loss, Wideband Noise,
Longitudinal Balance, Slope, Resistance Balance (loop) and
Resistance Balance (% diff).
Note: You must use a 3M™ Dynatel™ Far End Device II 1342
or 1343 to use the Vacant Wideband function.
Insertion Loss Frequencies and Sweep Frequencies by Service Type
Insertion
Loss
Single
Frequency*
Sweep Frequencies
Sweeps
Pots
1004 Hz
404, 804, 1004, 1204, 1404, 1604, 1804, 2004,
2804, 3004 (Hz)
56k
64k
ISDN
HDSL
T1
28 kHz
20, 28, 32, 40, 48, 82 (kHz)
32 kHz
20, 28, 32, 40, 48, 82 (kHz)
40 kHz
20, 28, 32, 40, 48, 60, 70, 82 (kHz)
20, 30, 50, 70, 90, 110, 130, 196, 400 (kHz)
200, 400, 500, 700, 772, 1024 (kHz)
200, 400, 500, 700, 772, 1024 (kHz)
196 kHz
772 kHz
1024 kHz
138 kHz
E1
ADSL
20, 30, 50, 69, 90, 110, 138, 276, 400, 600, 800,
1000, 1100 (kHz)
H2/4ACC
H4RACC**
H4NACC***
ADSL2
196 kHz
N/A
50, 80, 130, 196, 250, 300, 350 (kHz)
20, 30, 50, 70, 90, 110, 130, 196, 400 (kHz)
20, 30, 50, 70, 90, 110, 130, 196, 400 (kHz)
N/A
138 kHz
20, 30, 50, 69, 110, 138, 276, 400, 600, 800, 1100,
1500, 1800, 2200 (kHz)
* Pass/Fail provided for Single Frqeuency when measuring just Single Frequency or in Sweep Mode.
** Pass/Fail provided for 50 kHz, 90 kHz and 130 kHz
*** Pass/Fail provided for 50 kHz, 90 kHz, 130 kHz and 196 kHz
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174
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
Auto Test>Vacant Wideband>Hook-Up
RED
GRN
BLK
Ring (B) 1
Ground (Earth)
Tip (A) 1
Auto Test>Vacant Wideband>Setup
1. Press the blue key
to enter the Auto Test
function. Use the up and
down arrow keys to select
Vacant Wideband.
Setup
Press
to choose the
measurement parameters.
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175
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
Auto Test>Vacant Wideband>Setup
Select
2. Press
to select the
gauge of your cable. Use
the up and down arrow
keys to select the gauge.
Select
3. Press
to move to
the type of cable. Use the
up and down arrow keys to
select your type of cable.
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176
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
Auto Test>Vacant Wideband>Setup
Select
4. Press
to move to the
service type. Use the up and
down arrow keys to choose
the type of service.
Select
5. Press
to move to the
termination type. Use the
up and down arrow keys to
choose the termination.
OK
Press
to return to the
main Auto Test screen.
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177
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
Auto Test>Vacant Wideband>Setup
Test Pair 1
6. Press
test.
to start the
7. Certain auto test results are
compared against pass/fail
limits to provide a quick-
look at the pair condition.
The pass/fail status is
indicated in the results box
by an “OK” for pass, a
“Yield” sign for marginal
and a “Stop” sign for fail.
Val.
8. Press
to see the actual
test results.
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178
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
Auto Test>Vacant Wideband>Setup
Pass/Fail
9. Press
to see only
the OK, Yield, or Stop
symbols.
WB Slope
10. Press
to see the
graph of the slope.
OK
11. Press
to return to the
main Test Results screen.
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179
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
Auto Test>Expert Pair Test
Use the Expert Pair Test to detect, identify and locate the most
common pair faults without having to change test leads. In most
situations, the 3M™ Dynatel™ Far End Device II 1342 or 1343
(FED) is required to provide the most complete information.
Auto Test>Expert Pair Test>Features
Identification Location Identification
Location
w/o FED
with FED
with FED
w/o FED
Yes
Yes
No
Working Pair
Yes
NA
NA
Length
No
Good Pair
Yes
Length
No
T/R Reversal
Yes
Light T/R Short
Solid T/R Short
Solid T-Ground
Solid R-Gound
High T-Ground
High R-Ground
T-Battery Cross
R-Battery Cross
T-Complete Open
R-Complete Open
T&R-Complete Open
T-Partial Open
R-Partial Open
T&R Partial Open
Yes
NA
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
No
Yes
Yes
No
Yes
Yes
No
Yes
Yes
No
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
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180
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
Auto Test>Expert Pair Test>Hook-Up
RED
GRN
BLK
Ring (B) 1
Ground (Earth)
Tip (A) 1
Auto Test>Expert Pair Test>Operation
1. Press the blue key
to enter the Auto Test
function. Use the up and
down arrow keys to select
Expert Pair Test.
Setup
Press
to choose the
measurement parameters.
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181
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
Auto Test>Expert Pair Test>Operation
2. Use the up and down keys
to select the wire gauge.
Select
Press
.
3. Use the up and down keys
to select the type of cable.
OK
Press
.
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182
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
Auto Test>Expert Pair Test>Operation
Test Pair 1
4. Press
.
5. Review the screen for the
correct setup information.
Test
Press
to start the test.
6. Test results.
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183
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
Auto Test>Expert Pair Test>Operation
7. Use to exit this
screen. Wait for the 3M™
Dynatel™ Far End Device II
to reset before you choose
another screen.
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184
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
Talk Set
The Talk Set
function allows you to use the 965AMS
#
tester as a talk set on an active line to send DTMF or pulse
dialing.
Talk Set>Hook-Up
RED
GRN
BLK
Ring (B)
Ground (Earth)
Tip (A)
Talk Set>Setup
1. Press the blue
start this function.
key to
#
Setup
2. Press
.
#
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185
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
Talk Set>Setup
3. Use the up and down arrow
keys to choose one of the
10 memory locations.
These locations are not
numbered.
Edit Number
4. Press
.
5. Use the blue keys to enter
the phone numbers. Use the
left and right arrow keys
to position the number as
needed.
#
6. Use the up and down
arrows to insert or delete
numbers.
Clear All
7. Press
to remove
all numbers from this entry.
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186
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
Talk Set>Setup
OK
8. Press
to save this
phone number.
Select
9. Press
to choose the
type of pulsing.
Use the up and down arrow
keys to choose DTMF or
Dial Pulse. DTMF is the
most common.
Select
10. Press
again to
choose the type of dial tone
start mode.
#
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187
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
Talk Set>Setup
11. Use the up and down arrow
keys to choose between
Loop Start and Ground
Start. Loop Start is the most
common.
Note: Ground start
requires the green test
lead to be connected to a
grounded shield.
OK
Press
to complete the
setup.
Talk Set>Operation
1. This screen shows the last
number dialed, the DC
voltage on the line and the
signal format for dialing.
You can use the previously
dialed number, enter a new
number using the blue keys,
Setup
#
or press
to use the
stored number list.
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188
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
Talk Set>Operation
Off Hook
2. Press
to draw
dial tone.
Dial
3. Press
number.
to dial the
#
4. The speaker and
microphone are located on
the front of the unit.
Speaker
Microphone
5. The up and down arrow
keys adjust the receiver
volume.
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189
Measurement Functions
3M™ Dynatel™ Advanced Modular System 965AMS
Talk Set>Operation
Mute
6. Press
to mute the
microphone.
Talk
Press
to un-mute.
On Hook
7. Press
call.
to end the
#
Talk Set>Applications
1. This function can be used as a butt set to dial out or to
receive incoming ringing tone.
2. You can also use this function as a talk circuit on an inactive
pair. Multiple 965AMS units can be bridged together on
the pair. Each tester supplies its own talk battery. You
cannot use the talk function and any other function at the
same time.
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190
3M™ Dynatel™ Advanced Modular System 965AMS
Care & Maintenance
Care & Maintenance
System Modes
1. The 965AMS tester is a microcomputer-controlled device
that is very similar to a laptop computer. The tester will be
in one of 3 modes: Active, Standby, or Power Down.
2. Active Mode: Press the red
key to wake-up the
tester. It is ready to use. The amount of time the tester will
stay in the active mode without pushing a key is controlled
by the Power-Down Timeout setting. Your choices are 5, 10
and 15 minutes.
3. Standby Mode: When you finish using the tester, press the
red
key to go into the Standby Mode.
4. Power Down Mode: This mode uses a very small amount
of power. This mode is recommended for extended down
time such as overnight or weekends and vacations. To power
down the tester, press and hold the red
seconds to go into Power Down Mode.
key for 10
Note: The tester is still using battery in Standby Mode. To
preserve battery life it is recommended that you power down
the tester overnight.
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191
Care & Maintenance
3M™ Dynatel™ Advanced Modular System 965AMS
AC Charger
Use the AC charger to charge the NiMH battery pack. Plug the
AC cord into the AC charger and into a power outlet. Plug the
DC cord into 965AMS tester. Make sure that the key on the plug
fits properly into the slot in the connector. The AC charger is
meant for charging the NiMH battery pack only.
Charging efficiency is best with a temperature between 50°F
(10°C) and 86° F (30°C).
Note: Do not charge the batteries at temperatures below 32°F
(0°C) or above 86° F (30°C).
DC Charger
Use the Cigarette Lighter Adapter to charge the NiMH battery
pack from a vehicle’s battery. This adapter is meant for charging
the NiHM battery pack only and should not be used to power the
965AMS tester during normal operations.
Charging efficiency is best with a temperature between 50°F
(10°C) and 86° F (30°C).
Note: Do not charge the batteries at temperatures below 32°F
(0°C) or above 86° F (30°C).
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192
3M™ Dynatel™ Advanced Modular System 965AMS
Care & Maintenance
Level of Charge
The battery icon in the upper right of all screens indicates the
battery charge. Four black bars in the icon indicate full charge.
Zero black bars indicate the battery pack is very low and should
be charged immediately. A warning screen appears when there
are only five minutes charge left.
System Reset
Situations were the batteries run down and the unit will not
power up may require you to reset the unit using this procedure:
1. Charge the internal battery pack or use the “AA” battery
pack with new batteries.
2. Press and hold the
3. Release the
key for 10 seconds.
key, and press again for 1 second.
4. Files will appear loading on the screen after about 20
seconds.
5. When the main screen appears, the unit is ready to use.
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193
Care & Maintenance
3M™ Dynatel™ Advanced Modular System 965AMS
Battery Pack
The 965AMS tester uses a Nickel Metal Hydride (NiMH)
battery pack. Typical life of battery pack is two years. To change
the battery pack:
1. Power down the unit.
2. Place the unit upside down on a soft surface. Loosen the 5
screws.
3. Remove the battery cover.
4. Unplug the battery connector.
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194
3M™ Dynatel™ Advanced Modular System 965AMS
Battery Pack
Care & Maintenance
5. Plug in the new battery connector.
6. Place the battery in the compartment.
7. Replace the cover.
8. Tighten the screws.
Caution: Battery may explode, leak or catch fire if exposed to
high temperatures or fire. Recycle or dispose of properly. To
prevent injuries or burns, do not allow metal objects to contact
or short circuit the battery terminals.
Note: NiMH batteries should be recycled if disposal services
are available.
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195
Care & Maintenance
3M™ Dynatel™ Advanced Modular System 965AMS
Battery Holder
The plastic battery holder that comes with the unit uses six
“AA” alkaline batteries (alkaline batteries are not included).
Use alkaline batteries only when the NiMH battery pack is
discharged and the AC adapter is not available. Typical lifetime
of the alkaline battery pack is twenty hours of normal use (less if
you use the backlight frequently, use the optional /SA or /ADSL
features heavily, or work in very cold weather). The alkaline
battery pack is installed the same way as the NiMH battery pack.
Note: The battery holder has protection against accidental
charging of alkaline batteries.
Test Leads
The 965AMS tester comes with a Red/Black test lead pair, a
Blue/Yellow test lead pair, and a separate Green test lead. The
Red/Black and Green test leads are used for most measurements.
The Blue/Yellow lead pair is used with some TDR modes (not
in the 965AMS-B tester), and the Yellow lead is used with RFL.
The shorting “strap” that comes with the unit is used with RFL.
Keep the test leads clean and dry at all times to insure best
accuracy of the measurements. Use soap and water to clean them
if necessary.
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196
3M™ Dynatel™ Advanced Modular System 965AMS
Self-Test Board
Self-Test Board
A self-test board is included with the 965AMS tester to verify
the performance of Opens and RFL. This is particularly
important if operating conditions (shock, temperature, etc.) have
changed and you want to check the function accuracy.
3 965AMS
Self-Test Board>Check Opens
1. Connect the test leads as shown. Press the
key on the
965DSP/SA tester. You should see the following readings
for different types of cable (US and Canada).
3
965AMS
Measurement
Capacitance
9.35 nF
Aircore
Jelly-Filled
350 ft (107 m)
400 ft (122 m)
595 ft (181 m)
680 ft (207 m)
Min
Max
Min
Max
395 ft (120 m)
450 ft (137 m)
595 ft (181 m)
680 ft (207 m)
Black to Red or
Black to Green
0.011 uF
9.35 nF
Red to Black
0.011 uF
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197
Self-Test Board
3M™ Dynatel™ Advanced Modular System 965AMS
Self-Test Board>Check RFL Performance
1. Connect the test leads as shown. Press the
965AMS tester.
key on the
3
965AMS
Setup
OK
2. Press the
3. Press the
key, enter 70°F (21°C) for temperature.
key to accept.
4. Select Separate Pair hookup, then continue. You should see
the following readings for different wire gauges (US and
Canada).
DTS
DTF
DSTF
AWG
Min
Max
Min
Max
Min
Max
11910
(3630)
12290
(3747)
1170
(357)
1230
(375)
10730
(3271)
11070
(3375)
19
5986
(1825)
6171
(1881)
592
(180)
613
(187)
5393
(1644)
5559
(1695)
22
24
25
26
3755
(1145)
3871
(1180)
371
(109)
385
(117)
3383
(1031)
3488
(1063)
2970
(905)
3063
(934)
293
(89)
305
(93)
2676
(816)
2759
(841)
2347
(716)
2420
(738)
232
(71)
240
(73)
2114
(645)
2180
(665)
1479
(451)
1526
(465)
146
(44)
152
(46)
1332
(406)
1375
(419)
28
Ohms
99.3
102.5
9.8
10.2
89.5
92.3
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198
3M™ Dynatel™ Advanced Modular System 965AMS
Specifications
Specifications
Electrical Specifications
Functions
Range
Resolution
Accuracy
Voltage (DC)
0 to 99.9 V
100 to 300 V
0.1 V
1 V
1% 0.5 V
3%
Voltage (AC)
Meter resistance
100 k or 1 m
0 to 99.9 V
100 to 250 V
0.1 V
1 V
1% 0.5 V
3%
Current
0 to 59.9 mA
60 to 110 mA
430 Ω
0.1 mA
0.1 mA
1% 0.3 mA
2%
Shunt resistance
Resistance
With CO voltage
0 to 9999 Ω
0 to 9999 Ω
1 Ω
1 Ω
1% 5 Ω
1% 50 Ω
1%
3%
3%
10 k to 99.9 kΩ
100 k to 999 kΩ
1 M to 9.9 MΩ
10 M to 99 MΩ
100 M to 990 MΩ
0.1 kΩ
1 kΩ
10 kΩ
0.1 MΩ
1 MΩ
5%
10%
Opens (no noise)
0 to 3,000 ft
(0 to 1,000 m)
3,000 to 10,000 ft
(1 km to 3 km)
10,000 to 50,000 ft
(3 km to 15 km)
1 ft (1 m)
1 ft (1 m)
10 ft (10 m)
1% 3 ft (1 m)
3%
5%
50,000 to 100,000 ft (15 100 ft (100 m)
km to 30 km)
10%
RFL
Fault range
Resistance to
Fault (no noise)
0 to 20 MΩ
—
—
0 to 99.99 Ω
100 to 999.9 Ω
1 k to 3 kΩ
RTS 0.01 Ω
RTS 0.1 Ω
RTS 1.0 Ω
0.1% of RTS 0.01 Ω1
0.2% of RTS 0.01 Ω1
1.0% of RTS 0.01 Ω1
Wet section test
Loop resistance Resistive 0 to 7 kΩ
—
—
—
5%
balance
0 to 3.5 kΩ
Loop resistance
0 to 99.9 Ω
100 to 999.9 Ω
1000 to 7000 Ω
0.01 Ω
0.1 Ω
1 Ω
0.1% 0.01 Ω
0.2% 0.01 Ω
1.0% 0.01 Ω
Resistance difference
0 to 99.99 Ω
0.01 Ω
1% of loop resistance
0.01 Ω
Note: 1All resistance to fault measurement accuracies have an added factor of (2x10-8) Rf ohms (Rf
=fault resistance in ohms)
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199
Specifications
3M™ Dynatel™ Advanced Modular System 965AMS
Electrical Specifications
Functions
Range
Resolution
Accuracy
Tone output
ID tone
200 to 1000 Hz,
fixed level
200 to 9999 Hz,
-20 to +1 dBm
10 k to 19.99 kHz,
-20 to +1 dBm
8 volt peak to peak
1 Hz, 0.1 dB
+1 Hz
Precision tone-
600 Ω Zout
1% Hz, 0.2 dB
2% Hz, 1 dB
1 Hz, 0.1 dB
Ringers
0.0 to 4.0 ringer
0 to 2000 nF
0.1 ringer
10 nF
Load coil count
0 to 5
1
1 load coil
1% 1 Ω
Ground resistance
5 to 500 Ω
1 Ω
Ohms/distance calculator 0-9999 Ω
0-99999 ft (0-30 km)
0.01
1 ft (0.1 m)
—
—
TDR
*
Ranges
100 ft, 200 ft, 500 ft,
1,000 ft, 2,000 ft, 5,000
ft, 10,000 ft, 20,000 ft,
30,000 ft (30 m, 60 m,
150 m, 300 m, 600
m, 1.5 km, 3km, 6 km,
10 km)
1 ft (1 m)
0.3% range
5 nS, 34 nS, 135 nS,
1660 nS, 600 nS
Fixed values
Velocity input
Modes
0.50 to 0.99
(150 to 299 m/μs)
—
—
—
Single trace, dual trace,
differential, memory,
crosstalk, peak, memory
diff.
—
Loss (and frequency)
With 600 Ω Zin
-40 to +10 dBm, 200 to 0.1 dB, 1 Hz,
3000 Hz,
-40 to +10 dBm, 3000 0.1 dB, 10 Hz
to 9995 Hz,
-40 to +10 dBm, 10 k to 1 dB, 10 Hz
19.9 kHz
0.5 dB, 2 Hz
0.5 dB, 10 Hz
1 dB, 20 Hz
Noise metallic 600 ΩZin 0 to 50 dBrnc (-90 to
1 dB
2 dB
2 dB
C and psophometric
–40 dBm0p)
Noise to ground
600 ΩZin
40 to 100 dBrnc
(-50 to 10 dBm0p)
1 dB
Longitudinal balance
Dial mode
0 to 85 dB
1 dB
2 dB
DTMF, pulse
Standard
Standard
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200
3M™ Dynatel™ Advanced Modular System 965AMS
Specifications
Electrical Specifications
Functions
Range
Resolution
Accuracy
Caller ID (U.S. and
Canada only)
Carrier level
Date, time,
number, name
-4 to –32 dBm
—
1 dBm
2 dBm
Short range wideband specifications (without SA option)
Wideband loss
100, 135 Ω Zin
Wideband tone
-50 to +2 dBm,
20 kHz to 1.2 MHz
0 dBm, 20 k to 2.2 MHz 1 kHz
0.1 dB, 100 Hz
2 dB, 1% Hz
+1 dB
output–100,135 Ω Zout
SA wideband specifications (with SA option)
Wideband loss
100, 135 Ω Zin
-85 to +5 dBm,
20 kHz to 2.2 MHz
0.1 dB, 100 Hz
1 dB, 1% Hz
Wideband noise metallic
100, 135 Ω Zin
E, F, G & G2 filters
E filter 10-90 dBm
F filter 20-90 dBm
G filter 30-90 dBm
1 dB
1 dB
1 dB
2 dB
2 dB
2 dB
Wideband spectral analysis
100, 135 Ω Zin
Dynamic range
Wideband tone output
–100,135 Ω Zout
10 kHz to 2.2 MHz
–90 dBm to +10 dBm
0 dBm, 20 kHz to
2.2 MHz
0.5% of span
1 dB
1 kHz
1%
1 dB
0.1% frequency
0.5 kHz
Impulse noise counting
E, F, G & G2 filters
Counting interval
Threshold
1-60 minutes
1 minute
1 dB
5%
Lower limits: 30 dBrnC
& E
1 dB (typical)
40 dBrnF
50 dBrnG
100 dBrn upper limit
All 30 dB higher for N to
Ground
Count capacity
9999
1
—
Filters:
300 Hz – 3400 Hz
1 kHz – 50 kHz
4.9 kHz – 245 kHz
20 kHz – 1.1 MHz – 3 dB points
20 kHz – 2.2 MHz
C, E, F, G, G2
and Psophometric
for OUS
E filter
F filter
G filter
G2 filter
Stored results
(All Results)
100 results total of all
types maximum
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201
Specifications
3M™ Dynatel™ Advanced Modular System 965AMS
General Specifications
Drop test
Survives 3 ft (1 m) drop onto concrete, (survives 5 ft drop onto
concrete with soft case) using ASTM D4169 assurance level I
method 5276
Vibration
Meets Mil 810F method 514.5
Water, dust and chemical proof
Meets IP65 per IEC 529(1989) for rain and dust
Immersion test IP67 0.15 m deep
Emissions
Standards meet FCC part 15, class A: Digital Devices for the US,
and EN55022 (radiated emissions)
Built to ISO9001/2000 certification
for manufacturing facilities and TL
9000 compliant
Built to ANSI/IPC A610-C
manufacturing standards
Language
Units
English, Spanish, and French Canadian
Feet or meters, Fahrenheit or Celsius, dBrnC or dBm0p, m/uS or Vp
Battery
Rechargeable battery pack or alkaline,
9 hours typical use (50% on/off measures voltage)
Display
4.1” x 3.1”(104 x 79 mm), 320 x 240 pixel resolution,
high visibility in bright sunlight
Operating temperature
Storage temperature
0° to 140°F (-18 to 60°C)
-40° to 165°F (-40 to 75°C)
Meets or exceeds IP65, IP67
Moisture: rain, water and humidity
proof
Note: Routine lab calibration is not recommended or required
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202
3M™ Dynatel™ Advanced Modular System 965AMS
Contact 3M
Contact 3M
Customer and Technical Support: 1-800-428-8688
Repair Center: 1-800-426-8688, option 2
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203
This is the EU symbol for equipment that is covered
under the Waste from Electrical and Electronic
Equipment (WEEE) directive per CENELEC
Specification 5041. It indicates that certain products
should not be discarded in the trash, but rather
should be recycled. This applies to all electronic
pluggable and battery powered products.
3M, the 3M logo and Dynatel are trademarks of 3M Company.
Important Notice
All statements, technical information, and recommendations related to 3M’s
products are based on information believed to be reliable, but the accuracy or
completeness is not guaranteed. Before using this product, you must evaluate it
and determine if it is suitable for your intended application. You assume all risks
and liability associated with such use. Any statements related to the product
which are not contained in 3M’s current publications, or any contrary statements
contained on your purchase order shall have no force or effect unless expressly
agreed upon, in writing, by an authorized officer of 3M.
Warranty; Limited Remedy; Limited Liability.
This product will be free from defects in material and manufacture for a
period of one (1) year from the time of purchase. 3M MAKES NO OTHER
WARRANTIES INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY
OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. If this
product is defective within the warranty period stated above, your exclusive
remedy shall be, at 3M’s option, to replace or repair the 3M product or refund the
purchase price of the 3M product. Except where prohibited by law, 3M will
not be liable for any indirect, special, incidental or consequential loss
or damage arising from this 3M product, regardless of the legal theory
asserted.
3
Communication Markets Division
6801 River Place Blvd.
Austin, TX 78726-9000
1-800-462-8688
Please Recycle. Printed in USA.
© 3M 2011. All Rights Reserved.
78-8135-5011-4-D
www.3MTelecommunications.com
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