Dear Valued Customer,
Thank you for purchasing Patton Electronics products! We do
appreciate your business. I trust that you find this user manual helpful.
We manufacture one of the widest selections of data
communications products in the world including CSU/DSU's, network
termination units, powered and self-powered short range modems, fiber optic
modems, interface converters, baluns, electronic data switches, data-line surge
protectors, multiplexers, transceivers, hubs, print servers and much more. We
produce these products at our Gaithersburg, MD, USA, facility, and can
custom manufacture products for your unique needs.
USER
MANUAL
MODEL 1140RC
We would like to hear from you. Please contact us in any of the
following ways to tell us how you like this product and how we can meet your
product needs today and in the future.
RS-232 Fiber Optic
Rack Card Modem
w/ V.54 & V.52 Diagnostics
Web:
(301) 975-1000
(301) 975-1007
Sales E-mail:
Support E-mail:
Phone - Sales
Phone - Support
Fax:
(301) 869-9293
Mail:
Patton Electronics Company
7622 Rickenbacker Drive
Gaithersburg, MD 20879 USA
We are committed to a quality product at a quality price. Patton
Electronics is BABT and ISO 9001 certified. We meet and exceed the highest
standards in the industry (CE, UL, etc.).
It is our business to serve you. If you are not satisfied with any
aspect of this product or the service provided from Patton Electronics or its
distributors, please let us know.
Thank you.
Burton A.Patton
Vice President
P.S. Please tell us where you purchased this product.
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Part #07M1140RC-C
Doc #018031UC
Revised 6/6/97
SALES OFFICE
(301) 975-1000
TECHNICAL SUPPORT
(301) 975-1007
C
E
R
T
I
F
I
E
D
An ISO-9001
Certified Company
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2.0 GENERAL INFORMATION
3.0 CONFIGURATION
Thank you for your purchase of this Patton Electronics product.
This product has been thoroughly inspected and tested and is
warranted for One Year parts and labor. If any questions or problems
arise during installation or use of this product, please do not hesitate to
contact Patton Electronics Technical Support at (301) 975-1007,
This section describes the location and orientation of the Model
1140RC’s configuration switches and jumpers, and provides detailed
instructions for all possible settings.
The Model 1140RC uses a combination of DIP switches and
jumpers that allow configuration to an extremely wide range of
applications. Designed around a mid-plane architecture, the Model
1140RC incorporates both front and rear cards. Configuration of both
may be necessary. The switches/jumpers are accessible when the
cards are removed from the rack chassis. Once configured, the Model
1140RC is designed to operate transparently, without need for frequent
re-configuration.
2.1 FEATURES
• Supports async or sync communication over dual optical fibers
• RS-232 Data rates to 57.6 Kbps
• Distances to 2 miles
• V.54 and V.52 Diagnostics
3.1 FRONT CARD CONFIGURATION
• Mounts in Patton’s 16-Card Rack Chassis
• Compatible with the Patton Model 1140 self-powered modem
• Immune to RFI/EMI noise, ground loops and transient surges
• Easily accessible configuration jumpers & switches
• Bi-level LED status indicators
The Model 1140RC front card has two sets of eight switches (S1 &
S2), which are mounted on the PC board (Figure 1, below). These
configuration switches allow you to configure the Model 1140RC for a
wide range of applications. The ON/OFF orientation of the DIP
switches is shown in figure 2 (below).
• Works with switchable 120V or 240V rack mount power supply
• SMA or ST connectors available (HD-26 female RS-232 port) on
rear Interface card
SwitchSet 2
(Switch 2:1 on bottom)
2.2 DESCRIPTION
Switch Set 1
(Switch 1:1 on bottom)
The Patton Model 1140RC fiber optic rack card modem is the
rack mountable counterpart to Patton’s Model 1140 self-powered, fiber
optic modem. Communicating full or half duplex over dual optical
fibers, the Model 1140RC supports data rates to 57.6 Kbps and
distances to 2 miles. Both V.54 and V.52 diagnostics are built into the
unit. Like all fiber optic modems, the Model 1140RC is inherently
immune to RFI/EMI noise, ground loops and transient surges. The
carrier may be switch selected as either “Continuously On” or
“Controlled by RTS”. Five pairs of bi-level LED indicators monitor TD,
RD, RTS, CD, test and error. A single LED monitors power.
Figure 1. Model 1140RC front card jumper locations
ON
ON
The Model 1140RC is designed to mount in Patton’s 2U high 19”
rack chassis. This 16-card chassis has a switchable 120/240 volt
power supply and mounts cards in a mid-plane architecture: The front
“brains” half-card can be plugged into different rear “interface” cards.
The Model 1140RC is available with a choice of two interface cards:
one with SMA connectors, and one with ST connectors. Both cards are
equipped with an HD-26 female connector for the RS-232 interface.
1
2
3
4
5
6
7
8
OFF
Figure 2. Close-up of DIP switches showing “ON” and “OFF” positions
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3.1.1 CONFIGURATION SWITCH SET “S1”
S1-5 and S1-6: Clock Source
The DIP switches on S1 set data rate, clock source, async./sync.
mode and carrier control method. The default settings are summarized
in the table below. Following the table is a description of all possible S-
1 switch settings.
Switches S1-5 and S1-6 are set in combination to determine the
transmit clock source for the Model 1140RC.
S1-5
On
Off
S1-6
On
On
Setting
Internal transmit clock
Receive recover clock
External transmit clock
S1 SUMMARY TABLE
On
Off
Position
S1-1
S1-2
S1-3
S1-4
S1-5
S1-6
S1-7
S1-8
Function
Data Rate
Factory Default
On
Off
S1-7: Asynchronous/Synchronous Mode
Data Rate
9,600 bps
Data Rate
Off
On
On
On
On
}
}
The setting for switch S1-7 determines whether the Model 1140RC
is in asynchronous or synchronous operating mode.
Data Rate
Clock Source
Clock Source
Async./Sync.
Carrier Control
Internal
Async.
S1-7
On
Off
Setting
Asynchronous
Synchronous
Off Constantly On
S1-8: Carrier Control Method
S1-1 through S1-4: Data Rate Setting
The setting for switch S1-8 determines whether the carrier is
“constantly on” or “controlled by RTS”. This setting allows for operation
in switched carrier, multipoint and/or hardware handshaking
applications.
Switches S1-1 through S1-4 are set in combination to determine
the asynchronous and synchronous data rate for the Model 1140RC.
S1-1
On
Off
On
Off
On
Off
On
Off
On
Off
On
Off
S1-2
On
On
Off
Off
On
On
Off
Off
On
On
On
On
S1-3
On
On
On
On
Off
Off
Off
Off
On
On
Off
Off
S1-4
On
On
On
On
On
On
On
On
Off
Off
Off
Off
Setting
S1-8
Off
On
Setting
Constantly On
Switched Carrier
1.2 Kbps
1.8 Kbps
2.4 Kbps
3.6 Kbps
4.8 Kbps
7.2 Kbps
9.6 Kbps
14.4 Kbps
19.2 Kbps
28.8 Kbps
38.4 Kbps
57.6 Kbps
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3.1.2 CONFIGURATION SWITCH SET “S2”
S2-4 and S2-5: RTS/CTS Delay
The DIP switches on S2 set word length, extended signaling rate,
RTS/CTS delay and V.52 and V.54 diagnostic test. The default settings
are summarized in the table below. Following the table is a description
of all possible S-2 switch settings.
The combined settings for switches S2-4 and S2-5 determine the
amount of delay between the time the Model 1140RC “sees” RTS and
when it sends CTS. Options are no delay, 7 ms and 53 ms.
S2-4
On
S2-5
On
Setting
7 mS
S2 SUMMARY TABLE
Off
On
Off
On
Off
Off
53 mS
No delay
No delay
Position
S2-1
S2-2
S2-3
S2-4
S2-5
S2-6
S2-7
S2-8
Function
Word Length
Factory Default
Off
10 bits
}
Word Length
Off
S2-8: V.54 Loopback Test Enable
Extended Signaling Rate
RTS/CTS Delay
RTS/CTS Delay
Future Use
Off-2.5% to +2.3%
On
To reset the V.54 circuit, set switch S2-6 to the “ON” position, then
back to the “OFF” position..
7 mS
}
On
-
-
S2-8
Off
On
Setting
V.54 Enable
V.54 Disable
Future Use
V.52/V.54 Tests
Off
Enable
3.2 REAR CARD CONFIGURATION
S2-1 and S2-2: Word Length
The Model 1140RC is compatible with two dual-fiber interface cards,
one with dual ST connectors and one with dual SMA connectors. Both
cards use an HD-26 female for the RS-232 interface. The single
configuration jumper (JB1) functions identically on both cards. Figure 3
(below) shows the jumper’s location.
Switches S2-1 and S2-2 are set in combination to determine the
word length for asynchronous data.
S2-1
Off
S2-2
On
Setting
8 bits
On
On
9 bits
Off
On
Off
Off
10 bits
11 bits
S2-3: Extended Signaling Rate
JB1
(pin 1 on left)
The setting for switch S2-3 determines the range of variability the
Model 1140RC “looks for” in asynchronous data rates (i.e., the actual
variance from a given frequency level the Model 1140RC will tolerate).
S2-3
Off
On
Setting
-2.5% to +1%
-2.5% to +2.3%
Basic
Extended
Figure 3. Model 1140RC rear card jumper location
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4.0 INSTALLATION
3.2.1 HOW THE JUMPER WORKS
This section describes the functions of the Model 1000R16 rack
chassis, tells how to install front and rear Model 1140RC cards into the
chassis, and provides instructions for connecting the interface cables.
Figure 4 (below) shows the 3-pin jumpers used on the rear card.
The strap enables or disables a particular function depending upon
whether it straddles pins 1 and 2, or pins 2 and 3.
4.1 THE MODEL 1000R16 RACK CHASSIS
The 1000R16 Rack Chassis (Figure 5, below) has sixteen short
range modem card slots, plus its own power supply. Measuring only
3.5” high, the 1000R16 is designed to occupy only 2U in a 19” rack.
Sturdy front handles allow the 1000R16 to be extracted and transported
conveniently.
1
2
3
1
2
3
1
2
3
Figure 4. Orientation of interface card strap
DTE Shield (Pin 1) & FRGND (JB1)
In the connected (closed) position, this strap links DB-25 pin 1 and
frame ground. In the open (disconnected) position, pin 1 is “lifted” from
frame ground.
Figure 5. Model 1000R16 rack chassis with power supply
JB1
Position 1&2 = DTE Shield (Pin 1) and FRGND connected
Position 2&3 = DTE Shield (Pin 1) and FRGND not connected
4.1.1 THE RACK POWER SUPPLY
The power supply included in the Model 1000R16 rack uses the
same mid-plane architecture as the modem cards. The front card of
the power supply slides in from the front, and the rear card slides in
from the rear. They plug into one another in the middle of the rack.
The front card is then secured by thumb screws and the rear card by
conventional metal screws.
WARNING! There are no user-serviceable parts in the power
supply section of the Model 1140RC. Voltage setting changes
and fuse replacement should only be performed by qualified
service personnel. Contact Patton Electronics Technical
[email protected] for more information.
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Switching the Power Supply On and Off
4.3 WIRING UP THE MODEL 1140RC
Both of the rear interface cards compatible with the Model 1140RC
have one RS-232 port and one dual-connector fiber port (see Figure 6.
below). Depending upon the card you have, the fiber port will be either
an ST or SMA connector. The RS-232 port is always a female HD-26
connector.
The power supply on/off switch is located on the front panel. When
plugged in and switched on, a red front panel LED will glow. Since the
Model 1000R16 is a “hot swappable” rack, it is not necessary for any
cards to be installed before switching on the power supply. The power
supply may be switched off at any time without harming the installed
cards.
Dual SMA
Dual ST
NOTE: Please refer to the Model 1000RP Series User Manual AC
and DC Rack Mount Power Supplies for fuse and power card
replacement information.
TX
RX
TX
RX
4.2 INSTALLING THE MODEL 1140RC INTO THE CHASSIS
The Model 1140RC is comprised of a front card and a rear card.
The two cards meet inside the rack chassis and plug into each other via
mating 50 pin card edge connectors. Use the following steps as a
guideline for installing each Model 1140RC into the Model 1000R16
rack chassis:
A1
A1
HD-26 F
HD-26 F
1. Slide the rear card into the back of the chassis along the metal
rails.
Figure 6. Model 1140RC interface card options
2. Secure the rear card using the metal screws provided.
4.3.1 RS-232 CONNECTION
3. Slide the front card into the front of the chassis. It should meet the
rear card when it’s almost all the way into the chassis.
The RS-232 port on the rear card of the Model 1140RC is wired as
a DCE, and uses a female HD-26 connector. The HD-26 is an alternate
connector according to the EIA RS-232E specification, and the pin-out
is the same as a standard DB-25. Pin 26 is not used.
4. Push the front card gently into the card-edge receptacle of the rear
card. It should “click” into place.
5. Secure the front card using the thumb screws.
You will need an interface cable to connect the Model 1140RC to
your RS-232 device. Assuming your RS-232 device is a DTE (PC,
host, terminal, workstation, etc.), the cable should be wired straight
through . You may either provide your own cable, or you may purchase
an HD-26 to DB-25 cable from Patton Electronics Company. Please
call the Patton Sales Department at (301) 975-1000 for price and
delivery information.
NOTE: Since the Model 1000R16 chassis allows “hot swapping”
of cards, it is not necessary to power down the rack when you
install or remove a Model 1140RC.
Notice! Any terminal cable connected to the Model 1140RC
must be shielded cable, and the outer shield must be 360
degree bonded–at both ends–to a metal or metalized backshell.
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5.0 OPERATION
4.3.2 FIBER CONNECTIONS
Once you have configured each Model 1140RC and connected the
cables, you are ready to operate the units. This section describes the
LED status monitors and power-up procedure.
The Model 1140RC is designed to work with the self-powered
Model 1140, or with another Model 1140RC. In either case, you will
need one unit at each end of a dual fiber cable. This cable connects to
the Model 1140RC using either ST or SMA connectors. Figure 7
(below) shows a close-up of each of these connector types.
5.1 LED STATUS MONITORS
The Model 1140RC features ten front panel status LEDs that
indicate the condition of the modem and communication link:
•
•
The green “PWR” LED glows when power is applied to the modem
card through its mid-plane chassis connection.
SMA
The green “TD” and “RD” indicators blink to show positive state
data activity. The Red “TD” and “RD” indicators blink to show
negative state data activity. Solid red indicates an idle state.
ST
•
•
The green “RTS” and “CD” indicators glow solid to show the control
signal is on. The red “RTS” and “CD” indicators glow solid to show
the control signal is off. When the 1140RC is connected to a DTE,
RTS will glow green for an incoming signal on RS-232 pin 4. CD
will glow green for an incoming signal from the line, and an
outgoing signal on RS-232 pin 8.
alignment pin
faces down
Figure 7. Close up of ST and SMA connections
The “Test” LED glows when either the Local Analog Loopback
(LAL) or Remote Digital Loopback (RDL) V.54 test mode is
initiated. The “Error” LED blinks when an error is detected by the
V.52 diagnostics.
5.2 POWER-UP
There is no power switch on the Model 1140RC: Power is
automatically applied to the 1140RC when its card-edge connector
makes contact with the chassis’ mid-plane socket, or when the chassis’
power supply is turned on. Note: The 1140RC is a “hot swappable”
card—it will not be damaged by plugging it in or removing it while the
rack is powered up.
When the local and remote units are both powered up, and are
passing data normally, the following LED conditions will exist:
• PWR = green
• TD & RD = flashing red and green
• RTS & CD = green
• Test = off
• Error = off
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5.3.2 REMOTE DIGITAL LOOPBACK (RDL)
5.3 TEST MODES
The Model 1140RC offers two V.54 test modes and two V.52 test
modes to evaluate the condition of the modems and the communication
link. Both sets of tests can be activated physically from the front panel.
The V.54 test can also be activated from the RS-232 interface. Note:
V.54 and V.52 test modes on the Model 1140RC are available for point-
to-point applications only.
The Remote Digital Loopback (RDL) test checks the performance of
both the local and remote Model 1140RCs, and the communication link
between them. Any characters sent to the remote 1140RC in this test
mode will be returned back to the originating device. For example,
characters typed on the keyboard of the local terminal will appear on
the local terminal screen after having been passed to the remote Model
1140RC and looped back. To perform an RDL test, follow these steps:
5.3.1 LOCAL ANALOG LOOPBACK (LAL)
1. Activate RDL. This may be done in two ways: First, by
moving the upper front panel toggle switch LEFT to “Remote”.
Second, by raising pin 21 on the RS-232 interface. (Note: be
sure DIP switch S2-8 is off).
The Local Analog Loopback (LAL) test checks the operation of the
local Model 1140RC, and is performed separately on each unit. Any
data sent to the local Model 1140RC in this test mode will be echoed
(returned) back to the user device. For example, characters typed on
the keyboard of a terminal will appear on the terminal screen. To
perform a LAL test, follow these steps:
2. Verify that the DTE equipment on the local end is operating
properly and can be used for a test.
1. Activate LAL. This may be done in one of two ways: First, by
moving the upper front panel toggle switch RIGHT to “Analog”.
Second, by raising pin 18 on the RS-232 interface (note: be
sure DIP switch S2-8 is off). Once LAL is activated, the Model
1140RC transmit output is connected to its own receiver. The
“Test” LED should be lit.
3. Locate the lower of the two toggle switches on the front panel
of the 1140RC and move it to the right. This will activate the
V.52 BER test mode and inject a “511” test pattern into the
remote loop. If any errors are present in the loop, the red
“Error” LED will blink sporadically.
4. If the BER test indicates no errors are present, move the V.52
toggle switch to the left, thus activating the “511/E” test with
periodic errors. If the test is working properly, the red “Error”
LED will light. A successful “511/E” test will confirm that the
loop is in place, and that the Model 1140RC’s built-in “511”
generator and detector are working properly.
2. Verify that the data terminal equipment is operating properly
and can be used for a test.
3. Locate the lower of the two toggle switches on the front panel
of the Model 1140RC and move it to the right. This will
activate the V.52 BER test mode and inject a “511” test pattern
into the local loop. If any errors are present in the loop, the
red “Error” LED will blink sporadically.
5. If the remote BER test indicates that errors are present, and
the local analog loopback/BER tests showed that both Model
1140RCs were functioning properly, this suggests a problem
with the twisted pair communication line connecting the two
modems. A common problem is improper crossing of the
pairs. Also, verify that the modular connections are pinned
properly, and the twisted pair line has continuity. If you still
have errors, call Technical Support at (301) 975-1007.
4. If the BER test indicates no errors are present, move the V.52
toggle switch to the left, thus activating the “511/E” test with
periodic errors. If the test is working properly, the red “Error”
LED will light. A successful “511/E” test will confirm that the
loop is in place, and that the Model 1140RC’s built-in “511”
generator and detector are working properly.
5.3.3 USING THE V.52 BER TEST INDEPENDENTLY
5. If the BER test indicates that errors are present, check to see
that the RS-232 cable connecting the DTE to the Model
1140RC is wired straight through, and is plugged in properly.
Also, ensure that the Model 1140RC is configured properly.
Then re-check your DTE equipment. If you still have errors,
call Patton Technical Support at (301) 975-1007.
The Model 1140RC's V.52 BER test can be used independent of the
V.54 loopback tests. This requires two operators: one to initiate and
monitor the test at both the local and the remote Model 1140RC. To
use the V.52 BER test by itself, both operators should simultaneously
follow these steps:
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APPENDIX A
1. Locate the lower of the two toggle switches on the front panel
of the Model 1140RC and move it to the right. This will
activate the V.52 BER test mode and transmit a “511” test
pattern to the other unit. If any errors are present, the
receiving modem’s red “Error” LED will blink sporadically.
Note: For this independent test to function, the “511” switch on
both Model 1140RCs must be turned on.
SPECIFICATIONS
Transmission Line: Dual optical cable
Transmission Mode: Asynchronous, half or full duplex, point-to-point
Interfaces: EIA RS-232, CCITT V.24
2. If the test indicates no errors are present, move the V.52
toggle switch to the left, thus activating the “511/E” test with
periodic errors present. If the test is working properly, the
receiving modem’s red “Error” LED will blink regularly. A
successful “511/E” test will confirm that the link is in place, and
that the Model 1140RC’s built-in “511” generator and detector
are working properly.
Data Rates: 0 - 57.6 Kbps
Distance: 2 miles over continuous fiber
RTS/CTS Delay: Switch-selectable: No delay, 7.0 mS, 53 mS
Receiver Sensitivity: -45 dBm
Coupled Power Output: -30 to -36 dBm
Optic Wavelength: 850 nm
LED Indicators: Power, TD, RD, RTS, CD, Test Mode, Error
Connectors: HD-26 female on RS-232 side; ST or SMA connectors
on fiber side
Power Supply: 120/240V (switchable) on rack chassis
Temperature Range: 0-60°C (32-140°F)
Altitude: 0-15,000 feet
Humidity: Up to 95% non-condensing
Weight: 2 oz.
Dimensions: 0.95”W x 3.1”H x 5.4”L
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APPENDIX B
FACTORY REPLACEMENT PARTS
APPENDIX C
PIN CONFIGURATIONS
The Patton Model 1140RC rack system features interchangeable
rear half cards, power cords/fuses for international various operating
environments and other user-replaceable parts. Model numbers and
descriptions for these parts are listed below:
UNIVERSAL D-26 INTERFACE (DCE WIRING)
Patton Model #
Description
1000RPEM..........................120/240V Rear Power Entry Module
1000RPSM-2.......................120/240V Front Power Supply Module
1000RPEM-DC ...................DC Rear Power Entry Module
1000RPSM-48A ..................48V Front Power Supply Module
1000RPEM-V ......................120/240V CE Compliant Rear Power
Entry Module
Digital Loop (RDL) -21
Data Terminal Ready (DTR) -20
8- (CD) Carrier Detect
7- (SG) Signal Ground
6- (DSR) Data Set Ready
5- (CTS) Clear to Send
4- (RTS) Request to Send
3- (RD) Receive Data
2- (TD) Transmit Data
1- (FG) Frame Ground
Analog Loop (LAL) -18
1000RPSM-V ......................120/240V CE Compliant Front Power
Supply Module
0805US ...............................American Power Cord
0805EUR.............................European Power Cord CEE 7
0805UK ...............................United Kingdom Power Cord
0805AUS.............................Australia/New Zealand Power Cord
0805DEN.............................Denmark Power Cord
0805FR ...............................France/Belgium Power Cord
0805IN.................................India Power Cord
0805IS.................................Israel Power Cord
0805JAP..............................Japan Power Cord
0805SW ..............................Switzerland Power Cord
05R16FPB1.........................Single Width Blank Front Panel
05R16FPB4.........................4-Wide Blank Front Panel
05R16RPB1 ........................Single Width Blank Rear Panel
05R16RPB4 ........................4-Wide Blank Rear Panel
0821R4................................400 mA Fuse (5x20mm)
Littlefuse 239.400 or equivalent
0821R2................................200 mA Fuse (5x20mm)
Littlefuse 239.200 or equivalent
056S1..................................Set of 16 #4 pan head screws/washers
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APPENDIX D
BLOCK DIAGRAM
Copyright ©
Patton Electronics Company
All Rights Reserved
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