N T1 ACE
USER MAN UAL
1 2 0 3 0 1 9 L1 :
1 2 0 3 0 1 9 L2 :
1 2 0 3 0 1 9 L3 :
3 3 6 0 4 8 VUR-2 :
N T1 ACE w ith Po w e r Su p p ly
N T1 ACE
N T1 ACE In te rn a tio n a l
Po w e r Su p p ly
61203019L1-1D
January 1999
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FCC regulations require that the following information be
provided in this manual:
1. This equipment complies with Part 68 of the
FCC rules. On the bottom of the equipment
housing is a label that shows the FCC registration
number for this equipment. If requested, provide
this information to the telephone company.
2. If this equipment causes harm to the telephone
network, the telephone company may temporarily
discontinue service. If possible, advance notifica-
tion is given; otherwise, notification is given as soon
as possible. The telephone company will advise the
customer of the right to file a complaint with the
FCC.
3. The telephone company may make changes in its
facilities, equipment, operations, or procedures that
could affect the proper operation of this equipment;
advance notification and the opportunity to main-
tain uninterrupted service is given.
4. If experiencing difficulty with this equipment,
please contact ADTRAN for repair and warranty
information. The telephone company may require
this equipment to be disconnected from the net-
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work until the problem is corrected, or it is certain
the equipment is not malfunctioning.
5. This unit contains no user-serviceable parts.
6. An FCC compliant telephone cord with a modu-
lar plug is provided with this equipment. In addi-
tion, an FCC compliant cable appropriate for the
dial backup option ordered is provided with this
equipment. This equipment is designed to be con-
nected to the telephone network or premises wiring
using an FCC compatible modular jack, which is
Part 68 compliant.
7. The following information may be required
when applying to the local telephone company for
leased line facilities.
Service
Type
Digital Facility
Interface Code
Service
Order Code
Network
Jacks
ISDN
02IS5
6.0N
RJ-49C
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ADTRAN YEAR 2 0 0 0 (Y2 K)
READIN ESS DISCLO SURE
ADTRAN has established a Year 2000 program to ensure
that our products and operations will correctly function
in the new millennium. ADTRAN warrants that all prod-
ucts meet Year 2000 specifications regardless or model or
revision. Information about ADTRAN’s Year 2000 com-
pliance program is available at the following:
Web Site
www.adtran.com
Product Matrix
Faxback Document Line
www.adtran.com/ Y2Kfax.html
(256) 963-8200
Y2K plans and product certifications
are listed in the matrix
(256) 963-2200
Y2K Project Line
E-mail
year 2000@adtran.com
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CAN ADIAN EMISSIO N S REQ UIREMEN TS
This digital apparatus does not exceed the Class B limits
for radio noise emissions from digital apparatus as set
out in the interference-causing equipment standard enti-
tled "Digital Apparatus," ICES-003 of the Department of
Communications.
Cet appareil numerique respecte les limites de bruits
radioelectriques applicables aux appareils numeriques
de Class B prescrites dans la norme sur le materiel brouil-
leur: "Appareils Numeriques," NMB-003 edictee par le
ministre des Communications.
CAN ADIAN EQ UIPMEN T LIMITATIO N S
Notice: The Canadian Industry and Science Canada label
identifies certified equipment. This certification means that
the equipment meets certain telecommunications network
protective, operational, and safety requirements. The
Department does not guarantee the equipment will operate
to the user’s satisfaction.
Before installing this equipment, ensure that it is permis-
sible to be connected to the facilities of the local telecom-
munications company. The equipment must also be
installed using an acceptable method of connection. In
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some cases, the company’s inside wiring associated with
a single-line individual service may be extended by
means of a certified connector assembly (telephone
extension cord). Compliance with the above conditions
may not prevent degradation of service in some situa-
tions.
Repairs to certified equipment should be made by an
authorized Canadian maintenance facility designated by
the supplier. Any repairs or alterations made by the user
to this equipment, or equipment malfunctions, may give
the telecommunications company cause to request the
user to disconnect the equipment.
Users should ensure for their own protection that the
electrical ground connections of the power utility, tele-
phone lines, and internal metallic water pipe system, if
present, are connected together. This precaution may be
particularly important in rural areas.
Users should not attempt to make such
connections themselves, but should contact
the appropriate electric inspection author-
ity, or an electrician, as appropriate.
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The Load Number (LN) assigned to each terminal device
denotes the percentage of the total load to be connected
to a telephone loop which is used by the device, to pre-
vent overloading. The termination on a loop may consist
of any combination of devices subject only to the require-
ment that the total of the Load Numbers of all devices
does not exceed 100.
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AFFIDAVIT REQ UIREMEN TS FO R CO N N ECTIO N
TO DIGITAL SERVICES
•
An affidavit is required to be given to the tele-
phone company whenever digital terminal
equipment without encoded analog content
and billing protection is used to transmit digi-
tal signals containing encoded analog content
which are intended for eventual conversion
into voiceband analog signals and transmitted
on the network.
•
The affidavit shall affirm that either no encod-
ed analog content or billing information is be-
ing transmitted or that the output of the device
meets Part 68 encoded analog content or bill-
ing protection specifications.
•
•
End user/ customer will be responsible to file
an affidavit with the local exchange carrier
when connecting unprotected CPE to a 1.544
Mbps or subrate digital services.
Until such time as subrate digital terminal
equipment is registered for voice applications,
the affidavit requirement for subrate services
is waived.
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AFFIDAVIT FO R CO N N ECTIO N O F CUSTO MER
PREMISES EQ UIPMEN T TO 1 .5 4 4 MBPS AN D/ O R
SUBRATE DIGITAL SERVICES
For the work to be performed in the certified ter-
ritory of _______________
(telco name)
State of __________________
County of ________________
I, ______________________________(name),
________________________(business address),
______________________ (telephone number) be-
ing duly sworn, state:
I have responsibility for the operation and maintenance
of the terminal equipment to be connected to 1.544 Mbps
and/ or ________ subrate digital services. The terminal
equipment to be connected complies with Part 68 of the
FCC rules except for the encoded analog content and bill-
ing protection specifications. With respect to encoded
analog content and billing protection:
( ) I attest that all operations associated with the estab-
lishment, maintenance, and adjustment of the digital
CPE with respect to analog content and encoded billing
protection information continuously complies with
Part 68 of the FCC Rules and Regulations.
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( ) The digital CPE does not transmit digital sig-
nals containing encoded analog content or billing
information which is intended to be decoded
within the telecommunications network.
( ) The encoded analog content and billing pro-
tection is factory set and is not under the control
of the customer.
I attest that the operator(s)/ maintainer(s) of the
digital CPE responsible for the establishment,
maintenance, and adjustment of the encoded an-
alog content and billing information has (have)
been trained to perform these functions by suc-
cessfully having completed one of the following
(check appropriate blocks):
( ) A. A training course provided by the manu-
facturer/ grantee of the equipment used to en-
code analog signals; or
( ) B. A training course provided by the custom-
er or authorized representative, using training
materials and instructions provided by the man-
ufacturer/ grantee of the equipment used to en-
code analog signals; or
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( ) C. An independent training course (e.g., trade
school or technical institution) recognized by the
manufacturer/ grantee of the equipment used to
encode analog signals; or
( ) D. In lieu of the preceding training require-
ments, the operator(s)/ maintainer(s) is (are) un-
der the control of a supervisor trained in
accordance with _________ (circle one) above.
I agree to provide _________________ (telco's
name) with proper documentation to demon-
strate compliance with the information as provid-
ed in the preceding paragraph, if so requested.
_________________________________Signature
_________________________________Title
_________________________________ Date
Transcribed and sworn to before me
This ________ day of ________, 199___
_________________________________
Notary Public
My commission expires:
_________________________________
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IMPO RTAN T SAFETY IN STRUCTIO N S
When using your telephone equipment, basic
safety precautions should always be followed to
reduce the risk of fire, electric shock and injury to
persons. The precautions are listed below.
1. Do not use this product near water (for exam-
ple, near a bath tub, wash bowl, kitchen sink
or laundry tub, in a wet basement or near a
swimming pool).
2. Avoid using a telephone (other than a cordless
type) during an electrical storm. There may be
a remote risk of electric shock from lightning.
3. Do not use the telephone to report a gas leak in
the vicinity of the leak.
4. Use only the power cord, power supply, and/
or batteries indicated in the manual. Do not
dispose of batteries in a fire. They may ex-
plode. Check local codes for any special dis-
posal instructions.
SAVE THESE INSTRUCTIONS.
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Maintenance ..................................................................4
Remote Testing .............................................................4
Repair and Return .........................................................4
Setting the Option Switches ..........................................4
Powering TEs from the NT1 ACE ................................6
Powering with the NT1 Power Supply .........................6
Connecting the Terminal Equipment ............................8
Short Passive Bus Configuration ..................................9
Extended Passive Bus Configuration ..........................10
Troubleshooting ..........................................................11
Specifications ..............................................................12
Network Interface (U) ........................................... 12
Customer Interface (S/T) ...................................... 12
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Table of Contents
Faceplate Indicators ...............................................13
Network Compatibility ..........................................13
Mechanical ............................................................13
Power .....................................................................13
Environmental .......................................................13
Power Supply Specifications .................................13
Figures
Figure 1. ADTRAN NT1 ACE .....................................1
Figure 2. Interface Connectors ......................................1
Figure 3. Switch Locations ............................................4
Figure 4. Power Supply Connection .............................7
Figure 5. Short Passive Bus Configuration ...................9
Figure 6. Extended Passive Bus Configuration ...........10
Tables
Table 1. Status Indicators .............................................2
Table 2. Network Connector Pin Assignments ............5
Table 3. Local Bus Connector Pin Assignments .........6
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N T1 ACE Use r Ma n u a l
Un it O ve rvie w
The ADTRAN NT1 ACE provides a basic rate interface
between customer ISDN terminal equipment (TE) and the
ISDN network (U). Figure 1 is an illustration of the NT1
ACE.
NT1 ACE
READY
ERROR
POW ER
Fig u re 1 . ADTRAN N T1 ACE
Two jacks are provided on the rear panel of the unit for this
purpose, as illustrated in Figure 2.
S/ T
S/ T
NETW ORK POW ER
U
LOCAL
Fig u re 2 . In te rfa ce Co n n e cto rs
A single RJ-49C connector labeled NETWORK U connects
to the network. Two additional data jacks labeled S/T con-
nect to the local bus.
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The U-interface complies with ANSI T1.601 and
ITU-TI.430 Recommendation Standard. The S/T-interface
complies with ANSI T1.605 and ETSI ETS 300012 Stan-
dard.
The ADTRAN NT1 ACE is a stand-alone unit. An external
power source must be provided for the NT1 ACE. External
power is supplied by the ADTRAN Power Supply, part
number 336048VUR-2. The two S/ T bus connectors on the
rear of the unit enable the NT1 ACE to supply power to the
TE.
LED In d ica to rs
Table 1 describes the status of the LEDs located on the front
panel of the NT1 ACE.
Ta b le 1 . Sta tu s In d ica to rs
LED
READY
Co lo r
Green
De scrip tio n
S/ T- and U-interfaces ready to place call
S/ T- or U-interface not ready
Unit has power
ERROR
Red
POW ER
Green
If the ERROR indicator is illuminated, check the flash rate of
the READY indicator to determine the source of the error. A
faster 8 Hz flash rate indicates a network problem. A slower
1 Hz rate indicates an S/ T interface problem.
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If the ERROR indicator is not illuminated and the READY
indicator is flashing, a network test is in progress. Network
command tests cause a faster 8 Hz flash rate. Terminal
equipment commanded tests produce a slower 1 Hz flash
rate.
Pa ssive Bu s De scrip tio n
The Local Bus interface may be used to connect up to eight
TEs to the NT1 ACE. This arrangement is referred to as a
Passive Bus. See the section Short Passive Bus Configuration
on page 9 for detailed information.
In sp e ctio n
After unpacking the unit, immediately inspect it for possi-
ble shipping damage. If damage is discovered, file a claim
immediately with the carrier; then contact ADTRAN Cus-
tomer Service. If possible, keep the original shipping con-
tainer for use in shipping the NT1 ACE for repair or for
verification of damage during shipment.
•
•
•
Never install telephone wiring during a lightning
storm.
Never install telephone jacks in wet locations unless
the jack is specifically designed for wet locations.
Never touch uninsulated telephone wires or termi-
nals unless the telephone line has been disconnect-
ed at the network interface.
•
Use caution when installing or modifying tele-
phone lines.
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Ma in te n a n ce
The ADTRAN NT1 ACE requires no routine maintenance to
operate. In case of equipment malfunction, refer to the sec-
tions Remote Testing and Repair and Return or remove the unit
and replace it with another unit optioned in an identical
manner.
Re m o te Te stin g
Network test features include a loopback test initiated at the
central office. This test confirms network integrity to the
NT1 ACE.
Re p a ir a n d Re tu rn
Repairs should not be performed in the field. Repair services
can be obtained by returning the unit to the ADTRAN Cus-
tomer and Product Service (CAPS) Department at the
address listed on the inside back cover of this manual.
Se ttin g th e O p tio n Sw itch e s
Two option switches located on the side of the unit configure
the Local Bus of the NT1 ACE, as shown in Figure 3.
LOCAL BUS
CONFIGURATION
LONG
TERMINATION
50
SHORT
NONE
100
Fig u re 3 . Sw itch Lo ca tio n s
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The switch labeled TERMINATION sets the Local Bus ter-
mination. The options available are NONE, 50, and 100. See
Powering TEs from the NT1 ACE on page 6 for more informa-
tion concerning Local Bus configurations.
The switch labeled CONFIGURATION has two possible
options. When set in the LONG position, the Local Bus is
configured for Extended Passive Bus. When set in the
SHORT position, the Local Bus is configured for Short Pas-
sive Bus. Configuration and switch settings are discussed in
Short Passive Bus Configuration on page 9 and in Extended
Passive Bus Configuration on page 10.
The Power Supply provides up to 10 watts of power for the
NT1 ACE and the TE. Table 2 gives pin assignments.
Ta b le 2 . N e tw o rk Co n n e cto r Pin Assig n m e n ts
Pin
1
De scrip tio n
No connection
2
No connection
3
No connection
4
U-interface network connection
U-interface network connection
No connection
5
6
7
Negative power input
Positive power input
8
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Po w e rin g TEs fro m th e N T1 ACE
The ADTRAN NT1 ACE can be used to provide power for
TEs connected to the local interface. The NT1 ACE, part
number 1203019L1, supplies power by a separate wire pair
(PS2) on the two data jacks marked LOCAL, as shown in
Figure 2 on page 1. The ADTRAN NT1 ACE International,
part number 1203019L3, also incorporates power source 1
(PS1) which provides power over the transmit and receive
pairs. Table 3 lists Local Bus connector pin assignments.
Before attempting to power any TE from the NT1 ACE, ver-
ify that it can accept power from a PS1 or PS2 power source.
Ta b le 3 . Lo ca l Bu s Co n n e cto r Pin Assig n m e n ts
Pin
1
De scrip tio n
No connection
No connection
2
3
S/ T interface Receive Power Source 1 (Positive)
S/ T interface Transmit Power Source 1 (Negative)
S/ T interface Transmit Power Source 1 (Negative)
S/ T interface Receive Power Source 1 (Positive)
Power Source 1 (Negative)
4
5
6
7
8
Power Source 2 (Positive)
Po w e rin g w ith th e N T1 Po w e r Su p p ly
The ADTRAN NT1 Power Supply, part number 336048VUR-
2, provides up to 10 watts of power at -48 VDC. The
NT1 ACE requires 1.1 watts, leaving approximately 8.9
watts to power the TE(s). Before connecting any TE to be
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powered from the NT1, verify that the total power require-
ment of the connected TE is less than 8.9 watts.
To connect the NT1 ACE to the NT1 Power Supply, perform
the following steps as illustrated in Figure 4.
1. Connect the Power Supply to the NT1 ACE at the
POWER jack located on the NT1 ACE.
2. Plug the Power Supply into the nearest wall outlet
supplying 110 VAC, 60 HZ.
3. On the NT1 ACE, verify that the POWER and ERROR
indicators are illuminated. After approximately 15
seconds, the READY indicator should flash at a 1 Hz
rate. Should any of the indicators fail to operate as
stated, see the section Troubleshooting on page 11.
POWER
NETWORK
LOCAL
INDPS2
1 0 0
-
1 2 0
DRTAN
VAC
Fig u re 4 . Po w e r Su p p ly Co n n e ctio n
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Co n n e ctin g th e Te rm in a l Eq u ip m e n t
After successfully powering up the NT1 ACE, the POWER
and ERROR indicators should be on and the READY indica-
tor should be flashing. Make sure that terminal equipment
Bus connectors at the rear of the unit. A second TE may be
plugged into the remaining Local Bus connector. If more
than two TEs need to be connected to the NT1 ACE, addi-
tional connections can be made in parallel to the S/ T bus
using RJ-45 connectors.
.TEs commonly have additional jacks wired in parallel.
ed for by the NT1 ACE. See the TE documentation for fur-
ther information.
After the TE powers up, the ERROR indicator should go out.
There may be some delay between plugging in the TE and
the ERROR indicator going out, depending on the specific
TE in use. If the ERROR indicator fails to go out, see the sec-
tion Troubleshooting on page 11.
As the ERROR indicator extinguishes, the READY indicator
should illuminate. The TE will now be ready to place and
receive calls. There may be a slight delay between the
appearance of the READY indicator and the TE’s ability to
place and receive calls, depending on the specific TE in use.
If the READY indicator fails to illuminate or if you are
unable to place or receive calls, see the section Troubleshoot-
ing on page 11.
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Sh o rt Pa ssive Bu s Co n fig u ra tio n
This configuration allows you to connect up to eight TEs at
any point on the bus. The bus length is limited to 600 feet, as
shown in Figure 5. To select the Short Passive Bus configu-
ration, the CONFIGURATION switch must be set to the
SHORT position. The bus terminating resistors can be
placed at any point along the bus. If the TEs have internal
terminating resistors that can be optioned, only one TE’s
termination resistor should be enabled. The TERMINA-
TION switch should be placed in the 100 position, and only
one of the TEs connected should be terminated with 100
ohm. If the unterminated TEs are placed within 20 feet of
the NT1, the TERMINATION switch should be in the 50
position, and the TEs should not be terminated. These
switch settings should always be maintained, unless an
external 100 ohm resistor is being used. If an external termi-
nating resistor is used, set the TERMINATION switch to
the NONE position.
600 Feet
*
TR
NT1
TR
*Not needed if NT1's
Termination Resistors
(TR) are used.
TE
TE
TE
Fig u re 5 . Sh o rt Pa ssive Bu s Co n fig u ra tio n
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Ex te n d e d Pa ssive Bu s Co n fig u ra tio n
This configuration allows you to connect up to eight TEs at
greater ranges than the Short Passive Bus. This group of TEs
can be located at up to 3000 feet from the NT1, as shown in
Figure 6. To select the Extended Passive Bus configuration,
the CONFIGURATION switch must be set to the LONG
position. A termination resistor must be centrally located to
the TEs. If the TEs have internal terminating resistors that
can be optioned, only one TE’s terminating resistor should
be enabled. The TERMINATION switch should be placed
in the 100 position, and only one of the TEs connected
should be terminated with 100 ohm. These switch settings
should always be maintained, unless an external 100 ohm
resistor is being used. If an external termination resistor is
installed, set the TERMINATION switch to the NONE posi-
tion.
3,000 Feet
160 Feet
*
TR
NT1
TR
*Not needed if NT1's
Termination Resistors
(TR ) are used.
TE
TE
Fig u re 6 . Ex te n d e d Pa ssive Bu s Co n fig u ra tio n
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Tro u b le sh o o tin g
If your NT1 ACE does not operate properly, please check
the lists of symptoms and solutions below. For further assis-
tance, please contact ADTRAN technical support at 888-
4ADTRAN.
POWER indicator does not illuminate.
•
•
•
Verify power connection.
Move power supply to another circuit.
Call ADTRAN technical support for assistance.
ERROR indicator illuminated; READY indicator flashes
at a faster 8 Hz rate.
Network activation failure:
•
•
Wall jack wiring is incorrect: Check wall jack.
Problem with ISDN line: Contact telephone com-
pany.
ERROR indicator illuminated; READY indicator flashes
at a slower 1 Hz rate.
Local bus failure:
•
•
TE not connected: Connect TE.
TE not receiving power from NT1: Consult TE doc-
umentation.
•
TE not terminated properly: Review the section
Setting the Option Switches on page 4.
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READY indicator does not illuminate.
•
Problem with ISDN network: Contact telephone
company.
•
ISDN line not plugged into NETWORK jack: Plug
ISDN line into NETWORK jack.
Unable to make or receive a call.
TE is not compatible with ISDN network: Contact
telephone company.
•
Sp e cifica tio n s
N e tw o rk In te rfa ce (U)
Line ............................. 2-Wire (Tip and Ring)
Operating Mode .......... Full-Duplex
Data Rate ....................160 kbps total, 144 kbps to customer
Signal Format............... 2B1Q
Output Amplitude ......... 2.5 volts, zero-to-peak
Tx Source Impedance ....As per ANSI T1.601
Rx Source Impedance....As per ANSI T1.601
Receiver Sensitivity........ As per ANSI T1.601
Cu sto m e r In te rfa ce (S/ T)
Line ............................. 4-Wire (Tx and Rx Pair)
Operating Mode .......... Full-Duplex
Data Rate ....................192 kbps total, 144 kbps to customer
Signal Format............... Alternate Mark Inversion, 100% duty cycle
Output Amplitude ......... 0.75 volt, zero-to-peak
Tx Source Impedance ....As per ANSI T1.605
Rx Source Impedance....As per ANSI T1.605
Receiver Sensitivity........ As per ANSI T1.605
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Fa ce p la te In d ica to rs
ERROR .................. U-interface or S/ T interface not ready
READY .................. Steady light - Network ready to place a call
8 Hz (faster) flashing - U-interface not ready
1 Hz (slower) flashing - S/ T interface not ready
POWER ................ Unit has power
N e tw o rk Co m p a tib ility
Interface ................ ISDN
Me ch a n ica l
Size ...................... 6.25" wide, 3.75" long, 1.35" high
Weight ................. 9.5 ounces
Mounting............... Wall or desktop
Po w e r
-48 VDC................ 1.1 W dissipation
Sources S/ T power up to 8.9 W
En viro n m e n ta l
Temperature .......... 0 to 40 °C (32 to 104 °F) operating
-20 to 70 °C (-4 to 158 °F) storage
Relative Humidity.... Up to 95%, non-condensing
FCC Approval........ Part 15, Class B
Po w e r Su p p ly Sp e cifica tio n s
Size ............................ 2.5“wide, 3.0" long, 1.9" high
Weight ....................... 1.5 lb
Power Input ................. 110 VAC, 60 Hz
Power Output............... 10 W
Voltage ....................... -48 VDC
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NT1 ACE User Manual
61203019L1-1
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Technical Support and Warranty Information
Presales Inquiries and Applications Support
Please contact your local distributor, ADTRAN Applications
Engineering, or ADTRAN Sales:
Applications Engineering
Sales
800) 615-1176
(800) 827-0807
Post-Sale Support
Please contact your local distributor first. If your local dis-
tributor cannot help, please contact ADTRAN Technical Sup-
port and have the unit serial number available.
Technical Support
(888) 4ADTRAN
Repair and Return
If ADTRAN Technical Support determines that a repair is
needed, Technical Support will coordinate with the Customer
and Product Service (CAPS) department to issue an RMA
number. For information regarding equipment currently in
house or possible fees associated with repair, contact CAPS
directly at the following number:
CaPS Department
(256) 963-8722
Identify the RMA number clearly on the package (below
address), and return to the following address:
ADTRAN Customer and Product Service
6767 Old Madison Pike
Progress Center/ Building #6 Suite 690
Huntsville, Alabama 35807
RMA # _____________
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