Adtran Nx 56-64 User Manual

Quad Nx 56/64

Module

Part Number 1200184L1

USER MANUAL

61200.184L1-1A
November 1997

901 Explorer Boulevard

P.O. Box 140000

Huntsville, AL 35814-4000

[phone]

© 1997 ADTRAN, Inc.

All Rights Reserved.

Printed in U.S.A.

FEDERAL COMMUNICATIONS COMMISSION

RADIO FREQUENCY INTERFERENCE STATEMENT:

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15
of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the
equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to
radio frequencies. Operation of this equipment in a residential area is likely to cause harmful interference in which
case the user will be required to correct the interference at his own expense.

Shielded cables must be used with this unit to ensure compliance with Class A FCC limits.

Change or modifications to this unit not expressly approved by the party responsible for compli­ance could void the user’s authority to operate the equipment.

Table of Contents

Chapter 1: Introduction...................................................................................................................................... 1

Quad nx 56/64 Module overview ...................................................................................................................... 1

Features............................................................................................................................................................ 1

Interfaces ......................................................................................................................................................... 1

Module Specifications ................................................................................................................................... 2

DTE Interface.................................................................................................................................... 2

Rates................................................................................................................................................... 2

Tests................................................................................................................................................... 2

Test Pattern....................................................................................................................................... 2

1s Density Protection....................................................................................................................... 2

Connector.......................................................................................................................................... 2

Physical Description...................................................................................................................................... 2

Adapter Cable................................................................................................................................................. 2

Chapter 2: Installation........................................................................................................................................ 3

Unpack and Inspect .............................................................................................................................................. 3

ADTRAN Shipments Include....................................................................................................................... 3

Customer Provides ........................................................................................................................................ 3

Installing the Quad Nx 56/64 Module............................................................................................................... 4

Wiring ..................................................................................................................................................................... 5

Power-Up Testing and Initialization.................................................................................................................. 5

Chapter 3: Operation .......................................................................................................................................... 7

Overview................................................................................................................................................................ 7

TERMINAL Menu Structure ............................................................................................................................... 7

Menu Description........................................................................................................................................... 8

Slt........................................................................................................................................................ 8

Type................................................................................................................................................... 8

Menu.................................................................................................................................................. 9

Alarms............................................................................................................................................... 9

Test..................................................................................................................................................... 9

State.................................................................................................................................................... 9

Status ................................................................................................................................................. 9

Hardware Revision.......................................................................................................................... 9

Quad Nx 56/64 Module Menu Options..................................................................................................... 10

Quad Nx Info........................................................................................................................................... 10

Part Number..................................................................................................................................... 10

Serial Number .................................................................................................................................. 10

Quad Nx Alarms..................................................................................................................................... 10

SLIP.................................................................................................................................................... 10

PLL..................................................................................................................................................... 10

ZERO ................................................................................................................................................. 10

NO EXT CLK.................................................................................................................................... 11

DTE Status................................................................................................................................................ 11

RTS..................................................................................................................................................... 11

CTS..................................................................................................................................................... 11

DTR.................................................................................................................................................... 11

DSR .................................................................................................................................................... 11

DCD................................................................................................................................................... 11

RI........................................................................................................................................................ 11

TD....................................................................................................................................................... 11

RD ...................................................................................................................................................... 11

Data Rate.................................................................................................................................................. 11

Inband....................................................................................................................................................... 11

ID........................................................................................................................................................ 11

PASS .................................................................................................................................................. 11

CRC.................................................................................................................................................... 11

TX....................................................................................................................................................... 12

61200.184L1-1 Quad Nx 56/64 Module User Manual i

RX....................................................................................................................................................... 12

PLL/Fifo................................................................................................................................................... 12

Lock.................................................................................................................................................... 12

RXE .................................................................................................................................................... 12

RXF..................................................................................................................................................... 12

TXE..................................................................................................................................................... 12

TXF..................................................................................................................................................... 12

Configuration .......................................................................................................................................... 12

Name ................................................................................................................................................. 12

Clk (+/-) (TX Clock Polarity)......................................................................................................... 12

Clk Srce (Clock Source)................................................................................................................... 12

Data (Data Format).......................................................................................................................... 12

CTS..................................................................................................................................................... 13

DCD................................................................................................................................................... 13

DSR .................................................................................................................................................... 13

DTR.................................................................................................................................................... 13

0 Inh (Zero Inhibit) .......................................................................................................................... 13

Test............................................................................................................................................................ 14

Loopbk............................................................................................................................................... 14

Loopback Status............................................................................................................................... 14

511 (511 Test Pattern) ...................................................................................................................... 14

511 Result.......................................................................................................................................... 14

Inject (Inject Error)........................................................................................................................... 15

511 Clr (Clear Results)..................................................................................................................... 15

Appendix A: Quad Nx 56/64 Dial Plan Interface Configuration ............................................................... 17

Interface Configuration ........................................................................................................................................ 17

Nx56/64 Option Module Interface Configuration.................................................................................... 18

Nx56/64 Option Module (User Termination).................................................................................... 18

Ports Available................................................................................................................................. 18

Number of Ports............................................................................................................................... 18

Table of Contents

ii Quad Nx 56/64 Module User Manual 61200.184L1-1

Chapter 1

Introduction

QUAD Nx 56/64 MODULE OVERVIEW

The Quad Nx (pronounced “N-by”) 56/64 Module provides four syn­chronous V.35 DTE ports, each of which can operate at any rate that is a
multiple of 56 or 64 kbps, up to 1.536 Mbps. The Quad Nx 56/64 Module
can be installed in any option slot of the ATLAS chassis.

Features

• Each port operates using 1 to 24 DS0s

• Includes an elastic store for absorption of rate variations

• Any port can be used as a timing source for the entire system

• Outputs a 50 percent duty-cycle output clock at all rates

• Generates and responds to V.54 looping codes

• Generates and checks 511 test patterns

• Bidirectional loopbacks:

- Port (toward the network)

- DTE (toward the DTE)

Loopbacks can be invoked locally or remotely (V.54).

Interfaces

• CCITT V.35 electrical (differential)

• Connector: DB-37 (DB-37 to Dual Winchester V.35 connector adapter
cables are shipped with this module)

61200.184L1-1 Quad Nx56/64 Module User Manual 1

Module Specifications

DTE Interface

CCITT V.35 Synchronous

Rates

56 kbps to 1.536 Mbps in 56K or 64K steps

Tests

Local Loopback (Bilateral)
Remote Loopback (V.54)
Self Test

Test Pattern

511 with errored seconds display and error inject capability

1s Density Protection

Connector

DB-37 with cables to convert to Winchester female connectors

Physical Description

The Quad Nx 56/64 Module can plug into any available option slot in the
ATLAS 800 chassis (see Figure 1-1).

The module has an indication under each D-shell connector referring to
the port on the card.

Figure 1-1

Quad Nx 56/64 Module

Adapter Cable

Two ADTRAN-supplied adapter cables convert from the DB-37
connectors on the rear of the module to Dual Winchester V.35 con­nectors. These connectors are marked as 1/3 and 2/4 to represent
the port connected (1 or 3/2 or 4), based on which DB-37 the cable is
attached to.

Chapter 1. Introduction

2 Quad Nx56/64 Module User Manual 61200.184L1-1

Chapter 2

Installation

UNPACK AND INSPECT

Carefully inspect the option module for any shipping damage. If damage
is suspected, file a claim immediately with the carrier and then contact
ADTRAN Technical Support. (See the last page of this manual for infor­mation on contacting Technical Support.) If possible, keep the original
shipping container for use in shipping the option module back for repair
or for verification of damage during shipment.

ADTRAN Shipments Include

• The Quad Nx 56/64 Module

• The Quad Nx 56/64 Module User Manual (to be inserted into the appro­priate section of the ATLAS 800 User Manual )

• Two DB-37 to dual V.35 Winchester adapter cables

Customer Provides

• DTE cables

61200.184L1-1 Quad Nx 56/64 Module User Manual 3

INSTALLING THE QUAD NX 56/64 MODULE

Figure 2-1 is representative of the action r equired for proper placement of
the Quad Nx 56/64 Module. Perform the following steps to install the
option module:

1. Remove the cover plate (corresponding to the slot in which the Quad
Nx 56/64 Module will be installed) from the ATLAS 800 chassis rear
panel.

2. Slide the Quad Nx 56/64 Module into the ATLAS 800 chassis until the
module is positioned firmly against the front of the ATLAS unit.

3. Fasten the thumbscrews at both edges of the option module.

4. Connect the cables to the associated device (s).

5. Complete installation of remaining modules and Base Unit as specified
in the Installation chapter of the ATLAS 800 User Manual .

Figure 2-1

Installing the Quad Nx 56/64 Module

Chapter 2. Installation

4 Quad Nx 56/64 Module User Manual 61200.184L1-1

WIRING

Each port of the Quad Nx 56/64 Module has a V.35 Winchester-style
connection (via the supplied adapter cables) as defined in Table 2-A.

Table 2-A

V.35 Winchester Pin Connection

POWER-UP TESTING AND INITIALIZATION

The Quad Nx 56/64 Module executes a self test during the power-up
sequence, as described in the ATLAS 800 User Manual . Upon power-up,
any previously configured setting for the Quad Nx 56/64 Module is auto­matically restored.

When the self test is completed and the configuration is successfully
restored, the LED labeled OK in the Module group on the front panel
turns On. If any alarms are detected during operation, the red LED
labeled ALARM in the Module group on the front panel turns On.

If the power-up self test is not successful, refer to the Troubleshooting sec­tion of the ATLAS 800 User Manual to diagnose and correct the problem.

Return to Chapter 2 (Installation) of the ATLAS 800 User Manual to con­tinue system set-up.

DESCRIPTION

Protective ground (PG)
Signal ground (SG)
Request to send (RTS) from DTE
Clear to send (CTS) to DTE
Data set ready (DSR) to DTE
Received line signal detector (DCD) to DTE
Data terminal ready (DTR) from DTE*
Ring indicator (RI)*
Local loopback (LL) from DTE*
Remote loopback (RL) from DTE*
Received data (RD-A) to DTE
Received data (RD-B) to DTE
RX clock (RC-A) to DTE
RX clock (RC-B) to DTE
Transmitted data (TD-A) from DTE
Transmitted data (TD-B) from DTE
TX clock (TC-A) to DTE
TX clock (TC-B) to DTE
External TX clock (ETC-A) from DTE
External TX clock (ETC-B) from DTE
Test mode (TM) to DTE

CCITT

101
102
105
106
107
109

-

-

-

­104
104
115
115
103
103
114
114
113
113

-

Pin

A
B
C
D
E

F

H

J

L
N
R

T
V
X
P
S
Y

AA

U

W

NN

* Ignored by Quad Nx 56/64 Module

Chapter 2. Installation

61200.184L1-1 Quad Nx 56/64 Module User Manual 5

Chapter 2. Installation

6 Quad Nx 56/64 Module User Manual 61200.184L1-1

Chapter 3

Operation

OVERVIEW

The Quad Nx 56/64 Module can be configured and controlled from a
variety of sources, including:

• The ATLAS 800 Front Panel, providing minimal configuration and sta­tus support

• The terminal menus, allowing detailed configuration, status, and diag­nostics

• SNMP, used primarily for reporting alarm conditions and system sta­tus

The terminal menu is accessed using either a VT 100 T erminal attached to
the ATLAS 800 Base Unit’s control port, or through a Telnet session,
established through the Base Unit’s Ethernet port. Detailed instructions
on the operation of each of the supported management approaches are
presented in the ATLAS 800 User Manual .

In order to edit items in the terminal menus, you must have the appropriate pass­word level. Each menu description in this section indicates the required password
level required for write and read access. See the section Access Passwords in the

ATLAS 800 User Manual for detailed information on working with passwords.

Security level 1 users can view and edit every available field. Security level 5 users
can view any field but cannot edit.

The remainder of this section describes the menu items presented when
managing the Quad Nx 56/64 Module via the terminal menus.

TERMINAL MENU STRUCTURE

The ATLAS 800 uses a form of hierarchical menus to access all features.
The topmost menu level leads to submenus which are grouped by func­tionality. All menu items display in the terminal window.

Refer to the ATLAS 800 User Manual for detailed instructions on how to navi­gate through the terminal menu.

61200.184L1-1 Quad Nx 56/64 Module User Manual 7

Chapter 3. Operation

The ATLAS 800 System Controller automatically detects the presence of
the Quad Nx 56/64 Module when it is installed in the system. To see the
menus for the Quad Nx 56/64 Module via the terminal menu, use the
arrow keys to scroll to the Modules menu and press Enter to access the
module choices. Figure 3-1 shows the Modules menu. The following sec­tions describe all the menu options.

Figure 3-1

Modules Menu

Menu Description

Slt

Read security: 5
Displays the number of all the available slots in the ATLAS 800 chassis.
Slot 0 refers to the ATLAS 800 base unit. This field is read-only.

Type

Write security: 3; Read security: 5
Displays the type of module actually installed in the slot or the type of

module you plan to install in the slot. If a Quad Nx 56/64 Module is
installed, the Type field will automatically default to V35Nx-4 (the Quad
Nx 56/64 Module). You can use this field to pre-configure a system
before actually installing modules by simply specifying the module that
you want to install in each slot.

If you install a module in a slot, then want to install a different type of module in
the slot, you must set this field to Empty before selecting another module type.

If a module is installed, the module type will automatically display the name of the
installed module, and cannot be set to any other option .

8 Quad Nx 56/64 Module User Manual 61200.184L1-1

Menu

Selecting this item displays additional status and configuration menus
about the selected module. (To access the submenus for this item, use the
arrow keys to scroll to the Menu column for the module you want to edit,
and press Enter .) For detailed information on each submenu item, see the
section Quad Nx 56/64 Module Menu Options on page 10.

Alarms

Read security: 5
This field displays whether there is an alarm condition on the Quad Nx
56/64 Module. Press Enter in this field to activate the Alarm menu.

Test

Read security: 5
This field displays whether the Quad Nx 56/64 Module is executing a
test. Press Enter in this field to activate the Test menu.

State

Write security: 3; Read security: 5
Even though a module is physically installed, it must be marked Online
for it to be considered an available resource. This parameter allows an
installed module to be marked Offline, which may be useful in system
troubleshooting.

Status

Read security: 5
This is a read-only field presenting status information on the Quad Nx

56/64 Module. The following messages may display:

Hardware Revision

Read security: 5
This is a read-only field that displays the hardware revision of the Quad
Nx 56/64 Module.

Online:

The module is enabled, and is responding to the Sys­tem Controller’s status polls. This is the normal
response of the system.

No Response:

The module is enabled, but is not responding to the
System Controller’s status polls. This response indi­cates either a problem in the system or that the mod­ule is not installed.

Empty:

The System Controller has not detected the presence
of a module in the slot, nor has a module been manu­ally enabled for this option slot.

Offline

The module is installed, but has been taken Offline
by a user . The module is still responding to controller
polls.

Offline/
No Response:

The module is installed, but has been taken Offline
by a user. The module is not responding to polls.

Chapter 3. Operation

61200.184L1-1 Quad Nx 56/64 Module User Manual 9

Chapter 3. Operation

Quad Nx 56/64 Module Menu Options

Figure 3-2 shows the menu options available for the Quad Nx 56/64
Module. The following sections describe these options.

Figure 3-2

Quad Nx 56/64 Module Menu Options

Quad Nx Info

Read security: 5
The Quad Nx 56/64 Info submenu indicates the status of the module.

Part Number

Displays the part number of the module. This field is read-only.

Serial Number

Displays the Quad Nx 56/64 Module’s serial number. This field is read­only.

Quad Nx Alarms

Read security: 5
This option displays any active alarms. These fields are read-only.

SLIP

A rate mismatch exists between the DTE clock and the network-side clock
(as set by DS0 assignment).

PLL

The Nx port is not able to lock onto the clock provided by the network
interface.

ZERO

The DTE is sending an excessive number of consecutive zeroes to the net­work interface.

10 Quad Nx 56/64 Module User Manual 61200.184L1-1

NO EXT CLK

The DTE is not providing an external transmit clock (only if the V.35 Nx
port is configured to get transmit clock from the DTE.)

DTE Status

Read security: 5
Shows the status of key DTE interface signals. The following signals are
monitored (these options are read-only):

RTS

Request To Send from DTE

CTS

Clear To Send to DTE

DTR

Data Terminal Ready from DTE

DSR

Data Set Ready to DTE

DCD

Data Carrier Detect to DTE

RI

Ring Indicate to DTE

TD

Transmit Data from the DTE

RD

Receive Data toward the DTE

Data Rate

Read security: 5
Displays the data rate at which each Nx port is currently operating. A
port’s data rate is determined by the number of DS0s assigned to it and the
rate per DS0 associated with the active maps.

Inband

Read security: 5

ID

Correct Unit ID

PASS

Correct Password

CRC

Correct CRC

Chapter 3. Operation

61200.184L1-1 Quad Nx 56/64 Module User Manual 11

Chapter 3. Operation

TX

Active Transmit

RX

Active Receive Data

PLL/Fifo

Read security: 5

Lock

Phase Lock Loop is locked

RXE

Receive data FIFO Empty

RXF

Receive Data FIFO Full

TXE

Transmit Data FIFO Empty

TXF

Transmit Data FIFO Full

Configuration

The CONFIG submenu configures the Quad Nx 56/64 Module.

Name

Write security: 3; Read security: 5
Allows you to enter a descriptive alpha-numeric name for each port.

Clk (+/-) (TX Clock Polarity)

Write security: 3; Read security: 5
Controls the clock used by the Quad Nx 56/64 Module to accept the trans­mit (TX) data from the DTE. This is usually set to Normal. If the interface
cable is long, causing a phase shift in the data, the clock can be set to In­verted. This switches the phase of the clock, which should compensate for
a long cable.

Clk Srce (Clock Source)

Write security: 3; Read security: 5
Selects the source for the DTE transmit clock, either Internal or DTE.

Data (Data Format)

Write security: 3; Read security: 5
Used to control the inverting of the DTE data. This inversion can be useful
when operating with a high-level data link control (HDLC) protocol (often
used as a means to ensure 1s density). Select either Normal or Inverted.

12 Quad Nx 56/64 Module User Manual 61200.184L1-1

Chapter 3. Operation

CTS

Write security: 3; Read security: 5
Clear to Send. Used to control characteristics of CTS (see Table 3-A).
Choose from Normal or Forced On.

DCD

Write security: 3; Read security: 5
Data Carrier Detect. Indicates to the DTE when a valid signal is being re­ceived at the Network Interface (see Table 3-A). Choose from Normal or
Forced On.

DSR

Write security: 3; Read security: 5
Data Set Ready. This signal indicates to the DTE when the DCE is turned

On

and ready for operation (see Table 3-A). Choose from Normal or

Forced On.

DTR

Write security: 3; Read security: 5
Data Terminal Ready. This parameter determines whether the ATLAS 800
treats a connection as permanent (DTR=Ignore) or to connect only when
DTR is active (DTR=Connect On DTR). Select either Ignore or Connect on
DTR.

0 Inh (Zero Inhibit)

Write security: 3; Read security: 5
When the port detects an uninterrupted string of 0s being transmitted for
more than one second, setting this parameter to ON will cause the ATLAS
800 to send 1s toward the network.

Table 3-A

Normal Mode Operation

(conditions which cause the port control signal to be deactivated)

SIGNAL RTS V.54 LOOPBACK 511 TEST ON SELF TEST ACTIVE NETWORK

TEST ACTIVE

NO DS0 MAPPED

NETWORK

ALARM

CTS Follows Off Off Off Off Off Off

DCD — — — Off Off Off Off

DSR — Off Off Off Off Off —

— = Do not care

Force On = On under all conditions

61200.184L1-1 Quad Nx 56/64 Module User Manual 13

Chapter 3. Operation

Test

This menu item is used to activate testing of specific data ports. It also con­trols the activation of loopbacks and the initiation of data test patterns.
Test results are displayed on the ATLAS 800 front panel.

The execution of Port Tests disrupts normal data flow in the port being tested.

Loopbk

Write security: 4; Read security: 5
Controls the activation and deactivation of loopbacks.

Loopback Status

Read security: 5
This read-only option indicates a port’s current loopback status by dis­playing any of the following status messages:

• No loopback active

• Looping up remote unit

• Remote unit looped back

• Looping down remote unit

• Remote loopup failed

• Port looped from remote source

• Port loopback active

511 (511 Test Pattern)

Write security: 4; Read security: 5
Controls the activation of the 511 test pattern generator and detector.

511 Result

Read security: 5
Displays the results of the 511 test. This option is read-only.The results are
in the form of the number of errored seconds.

No Loopback

The loop is deactivated.

Local Loopback

The Nx port activates both a local loopback (back to­ward the DTE) and a port loopback when invoked.

Remote Loopback

The remote loopback causes a V.54 loopback code to
be sent to the far end. If the device at the far end sup­ports V.54, the device activates a loopback on detec­tion of the V.54 code.

Off

Turns off the 511 test pattern generator and detector.

On

Turns on the 511 test pattern generator and detector.

Sync

Y (yes), N (no)

ES

Errored seconds. Indicates the number of seconds (after
pattern sync) that have contained at least one error.

14 Quad Nx 56/64 Module User Manual 61200.184L1-1

Inject (Inject Error)

Write security: 4; Read security: 5
Injects a 511 pattern error.

511 Clr (Clear Results)

Write security: 4; Read security: 5
Clears test results for the selected port.

Chapter 3. Operation

61200.184L1-1 Quad Nx 56/64 Module User Manual 15

Chapter 3. Operation

16 Quad Nx 56/64 Module User Manual 61200.184L1-1

Appendix A

Quad Nx 56/64 Dial Plan Interface Configuration

INTERFACE CONFIGURATION

The Interface Configuration option for the Dial Plan menu sets configura­tion parameters for the end point. These parameters will vary by the type
of port selected. The following section describes the configuration
options available for the Quad Nx 56/64 Module. The Dial Plan menus
are only accessible when using terminal mode. To access these options,
select Dial Plan from the top level menu.

Figure A-1

Dial Plan Menus

61200.184L1-1 Quad Nx 56/64 Module User Manual 17

Appendix A: Nx 56/64 Dial Plan Interface Configuration

Nx56/64 Option Module Interface Configuration

This section describes the User Termination configuration settings for the
Quad Nx56/64 Module when using the Dial Plan menus.

The Nx56/64 can only serve as a User termination end point.

Nx56/64 Option Module (User Termination)

When you are working in the User Termination section of the Dial Plan
menu, the Slot is defined as a Nx56/64 module, the following configura­tion options are available:

Ports Available

Indicates which of the four ports of the Quad Nx56/64 module have
already been defined either in another switched end point (indicated by
“s”) or in a Dedicated Map (indicated by “n”). This field is read-only.

Number of Ports

Defines to ATLAS how many of the ports could be used to answer calls to
the number(s) defined in the Accept Call list. You can enter numbers 1
through 4. The ports are contiguous beginning with the Port number
select and the number of ports.

Example: If the port selected (as a part of Slot/Port selection) is 2, and the
number of ports selected here was 2, then ports 2 and 3 would be enabled
to receive calls to the numbers listed under the Incoming Call Accept list.

18 Quad Nx 56/64 Module User Manual 61200.184L1-1

Index

Numerics

511

pattern

14

test results

14

A

adapter cable

2

alarm

PLL

10

status

10

zero

10

alarms

9

C

clear results

15

clear to send

13

clock source

12

configuration

12

connection

pins

5

CTS

11, 13

D

data carrier detect

13

data format

12

data rate

11

data set ready

13

DCD

11, 13

description

physical

2

dial plan configuration

17

DSR

11, 13

DTE status

11

DTR

11

F

features

1

H

hardware revision

9

I

inband

11

initialization

5

inject error

15

installation

3

installing the module

4

interface configuration

17

interfaces

1

L

local loopback

14

loopback

14

local

14

none

14

remote

14

status

14

loopbk

14

M

menu

description

8

options

10

Quad Nx 56/64

10

structure

7

submenu items

10

N

name

12

no ext clock

11

no loopback

14

O

operation

7

overview

7

overview

1

P

physical description

2

pin connections

5

PLL alarm

10

PLL/Fifo

12

power-up testing

5

61200.184L1-1 Quad Nx 56/64 Module User Manual 19

Index

Q

Quad Nx 56/64

features

1

installing

4

interfaces

1

menu options

10

overview

1

physical description

2

specifications

2

Quad Nx alarms

10

Quad Nx info

10

R

RD

11

remote loopback

14

RI

11

RTS

11

S

self test

14

slip

10

specifications

2

state

9

status

9

alarm

10

T

TD

11

terminal menu structure

7

test

9, 14

testing

5

TX clock polarity

12

type

8

W

wiring

5

Z

zero alarm

10

zero inhibit

13

20 Quad Nx 56/64 Module User Manual 61200.184L1-1

Product Support Information

Presales Inquiries and Applications Support

Please contact your local distributor, ADTRAN Applications Engineering, or
ADTRAN Sales:

Applications Engineering [phone]
Sales [phone]

Post-Sale Support

Please contact your ADTRAN account representative first. If your ADTRAN account representa­tive cannot help, please contact ADTRAN Technical Support 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 Return Material Authorization (RMA) department to issue an RMA number. For in­formation regarding equipment currently in house or possible fees associated with repair, contact
RMA directly at the following number:

RMA Department [phone]

Identify the RMA number clearly on the package (below address), and return to the following ad­dress:

ADTRAN, Inc.
RMA Department
901 Explorer Boulevard
Huntsville, Alabama 35806

RMA # _____________