ADTRAN Total Access 1500 Installation and Maintenance

Brand: ADTRAN

Model: Total Access 1500

Type: Installation and Maintenance

Section 61180109L1-5D

Issue 4, May 2006

CLEI Code: VAIM74ZJ_ _

61180109L1-5D 1

Trademarks: Any brand names and product names included in this document are

trademarks, registered trademarks, or trade names of their respective holders.

CONTENTS

1. General .................................................................... 1

2. Installation............................................................... 2

3. Provisioning ............................................................ 3

4. Alarms ................................................................... 11

5. Tests ...................................................................... 11

6. Maintenance .......................................................... 11

7. Specifications ........................................................ 12

8. Warranty and Customer Service ........................... 12

FIGURES

Figure 1. Quad LIU Front Panel.................................. 1

Figure 2. DIP Switches................................................ 3

Figure 3. Quad LIU Menu Tree .................................. 7

TABLES

Table 1. Compliance Codes ........................................ 2

Table 2. Front Panel LEDs.......................................... 4

Table 3. Quad LIU Switch Settings ............................ 5

Table 4. Quad LIU Specifications............................. 12

1. GENERAL

This practice is an installation and maintenance guide

for the ADTRAN

Total Access 1500

Quad Line

Interface Unit (LIU) List 1 Common Module. Figure 1

shows the Quad LIU (P/N 1180109L1) front panel.

Revision History

This is the fourth issue of this practice. This issue

reflects updates to the Total Access 1500 System

Software Release 3.0, Quad LIU software T09Q, and

incorporates the addition of new features including the

following:

• Addition of a DLC counting sequence in Quad T1

mode

• Incorporation of an automatic mapping for 2B+D

ISDN when in Dual T1 mode

• Add support to automatically detect installation in

19-inch chassis

• Removed signalling bits from 4-wire TO

A full list of features is detailed in Total Access 1500

System Release 3.0 Release Notes available at

www.adtran.com

Figure 1. Quad LIU Front Panel

NOTE

This release of the LIU software is designed to

operate with System Controller Unit (SCU)

software release V08 or later to support these

feature enhancements.

Description

The Quad LIU is a common module for the Total

Access 1500 chassis (P/N 1180001L1) or the Total

Access 1500 19-inch chassis (P/N 1180019L1).

The Quad LIU connects the chassis to a T1 line at the

DSX-1 or DS1 level. All data formatting and line

encoding as well as backplane timing and control are

performed by the Total Access 1500 Quad LIU.

LIU

1180109L1

YEL

REM

MASTER

RED

RCV

TEST

STATUS

MONITOR

Total Access 1500 Quad Line Interface Unit (LIU) List 1

Installation and Maintenance Practice

2 Issue 4, May 2006 61180109L1-5D

Features

The basic features of the Quad LIU include the

following:

• Terminates up to 4 T1 lines providing DSX-1 or

DS1 interface to the network

• Terminates 1 T1 Protect Line for LIU protection

• Supports up to 96 DS0s

• SF, ESF, or SLC-96 data framing formats

• AMI or B8ZS line code formats

• Local and remote loopbacks

• Front panel bantam jacks for monitoring T1s

• Local, loop, or external timing modes

• Supports ANSI T1.403 in-band payload and line

loopback

• Supports SLC Mode I and III

Compliance

Table 1 shows the compliance codes for the Quad LIU,

which is NRTL listed to the applicable UL Listing.

The Total Access 1500 chassis frame ground terminal

must be connected to an earth ground to ensure that the

front panel of the Quad LIU is properly grounded via

the backplane connector.

This device complies with Part 15 of the FCC rules.

Operation is subject to the following two conditions:

1. This device cannot cause harmful interference.

2. This device must accept any interference received,

including interference that can cause undesired

operation.

Changes or modifications not expressly approved by

ADTRAN could void the user’s authority to operate this

equipment.

2. INSTALLATION

After unpacking the Quad LIU, inspect it for damage. If

damage has occurred, file a claim with the carrier then

contact ADTRAN Customer Service. Refer to the

Warranty and Customer Service section for further

information. If possible, keep the original shipping

container for returning the Quad LIU for repair or for

verification of shipping damage.

CAUTION

Electronic modules can be damaged by ESD.

When handling modules, wear an antistatic

discharge wrist strap to prevent damage to

electronic components. Place modules in

antistatic packing material when transporting

or storing. When working on modules, always

place them on an approved antistatic mat that is

electrically grounded.

Shipping Contents

The contents include the following items:

• Quad LIU

• Quad LIU Installation and Maintenance Practice

Instructions for Installing the Module

The Quad LIU plugs directly into the ADTRAN Total

Access 1500 chassis. No installation wiring is required.

The Quad LIU should be installed in the Total Access

1500 chassis in the slot labeled

LIU-A or LIU-B. Refer to

the Provisioning section prior to module insertion.

CAUTION

This release of the LIU software is designed to

operate with SCU software release V08 or later

to support feature enhancements. SCU

software can be found at www.adtran.com

under the Service/Support page.

Table 1. Compliance Codes

Code Input Output

Power Code (PC) C C

Telecommunication Code (TC) – X

Installation Code (IC) A –

C A U T I O N !

SUBJECT TO ELECTROSTATIC DAMAGE

OR DECREASE IN RELIABILITY.

HANDLING PRECAUTIONS REQUIRED.

61180109L1-5D Issue 4, May 2006 3

To install the Quad LIU, perform the following steps:

1. If present, remove the LIU Blank (P/N 1180010L1)

from the appropriate LIU common module slot of

the Total Access 1500 chassis.

2. Hold the Quad LIU by the front panel while

supporting the bottom side.

3. Align the Quad LIU card edges to the guide

grooved for the slot designated

LIU-A.

4. Insert the Quad LIU until the edge connector seats

firmly into the backplane.

5. Push the ejector in place to ensure the Quad LIU is

fully seated.

NOTE

An additional

LIU-B slot is also provided for

optional redundancy. For dual operation, only

Quad LIUs of the same hardware version and

software revision should be installed.

When the Quad LIU first powers up, it performs the

power up self-tests which check the DRAM and

checksum. Once the power up self-test is complete, the

LEDs reflect the true state of the hardware.

Front Panel LEDs

The front panel LEDs provide status and alarm infor-

mation. See Table 2 on page 4 for LED descriptions.

Front Panel Pushbutton

A pushbutton switch labeled

STATUS is accessible

from the front panel to aid in test and troubleshooting.

The

MONITOR TX and RX bantam jack is provided for

T1 access.

NOTE

TX = Transmit (Out) and RX = Receive (In)

3. PROVISIONING

All options on the Quad LIU are provisionable either

manually, using internal DIP switches, or electronically

using the SCU

ADMIN port.

Manual Provisioning

The DIP switches SW1 and SW2 provide the Quad LIU

with the necessary option settings for DSX/DS1 modes

of operation. Figure 2 shows the orientation of the DIP

switches. Table 3 on page 5 shows the available DIP

switch settings.

Figure 2. DIP Switches

NOTE

DIP switch settings can be used for the initial

turn up of the system, and can automatically

assign time slots to physical slots, depending

on the setting selected. If any setting is

changed via the VT100 interface, the

REM

LED on the front panel lights indicating that

the settings have changed.

Electronic Provisioning

The craft ports on the SCU are used to change default

options and obtain access module status through menu

screens. To access the menu screens, connect a VT100

terminal or computer running a terminal emulation

program to the SCU front panel

ADMIN port using a

standard male RS-232, DB-9 cable.

ADMIN port

settings are as follows:

• 9600 baud

• No parity

• 8 data bits

• 1 stop bit

• No flow control

Windows HyperTerminal

Windows HyperTerminal can be used as a VT100

terminal emulation program. Refer to the Help section

of HyperTerminal for additional information.

NOTE

To ensure proper display background, select

VT100 terminal emulation under Settings.

OFF

4 Issue 4, May 2006 61180109L1-5D

Table 2. Front Panel LEDs

Label Condition Description

Red

Yellow

Green

Flashing

Off

ON = T1-A in Red Alarm

ON = T1-A in Yellow Alarm

ON = T1-A Active

FLASHING = T1-A in Test

OFF = In Monitor Mode

Red

Yellow

Green

Flashing

Off

ON = T1-B in Red Alarm

ON = T1-B in Yellow Alarm

ON = T1-B Active

FLASHING = T1-B in Test

OFF = In Monitor Mode

Red

Yellow

Green

Flashing

Off

ON = T1-C in Red Alarm

ON = T1-C in Yellow Alarm

ON = T1-C Active

FLASHING = T1-C in Test

OFF = In Monitor Mode

Red

Yellow

Green

Flashing

Off

ON = T1-D in Red Alarm

ON = T1-D in Yellow Alarm

ON = T1-D Active

FLASHING = T1-D in Test

OFF = In Monitor Mode

Red

Yellow

Green

Flashing

Off

ON = T1-P in Red Alarm

ON = T1-P in Yellow Alarm

ON = T1-P Active

FLASHING = T1-P in Test

OFF = In Monitor Mode

RED

Red ON = Monitored T1 in Red Alarm

YEL

Yellow ON = Monitored T1 in Yellow Alarm

RCV

Red ON = Monitored T1 bipolar or logic error detected

REM

Green ON = Remotely Provisioned (Craft or Network)

OFF = Locally Provisioned (DIP Switches)

TEST

Yellow ON = Test Mode Active

MASTER

Green

Flashing

ON = Online Unit

FLASHING = Provisioning in progress. Failover not possible.

STATUS

Switch Momentary activation cycles through the T1s for monitoring purposes.

Activating the switch for two or more seconds causes provisioning to

toggle between local and remote.

61180109L1-5D Issue 4, May 2006 5

* Denotes factory default settings.

Note: SW1-1 through SW2-4 set up all T1s identically.

Table 3. Quad LIU Switch Settings

Switch Function Description

SW1 DSX-1 Line Build Out

and DS1 Attenuation

Selects the Line Build Out in feet, Attenuation in Decibels (dB)

Distance SW1-1 SW1-2 SW1-3

0-133 (Feet)/0 dB* OFF OFF OFF

133-266 OFF OFF ON

266-399 OFF ON OFF

399-533 OFF ON ON

533-655 ON OFF OFF

–7.5 dB ON OFF ON

–15 dB ON ON OFF

–22.5 dB ON ON ON

SW2-1

OFF

Line Code Format

AMI

B8ZS*

Enables Bipolar Eight Zero Substitution (B8ZS), which allows for Clear Channel

operation for the T1 carrier system, or Alternate Mark Inversion (AMI). This

option must be configured identically with all other T1 network equipment on this

circuit.

SW2-2

OFF

Framing Format

ESF*

Enables either Extended Superframe Format (ESF) or Superframe Format (SF).

This option must be configured identically with all other T1 network equipment on

this circuit.

SW2-3

SW2-4

Timing Mode Determines a clock source for the Total Access 1500 channel bank.

Function SW2-3 SW2-4

Local Clock – provided by local LIU OFF OFF

Loop A Clock – uses recovered clock from T1 bit

stream*

OFF ON

External Clock input ON OFF

SW2-5

SW2-6

SW2-7

Terminal Mode Select the appropriate Terminal Type and counting mode for the Total Access 1500

system.

Terminal Mode Counting SW2-5 SW2-6 SW2-7

D4 D4 OFF OFF OFF

D4 D1D OFF OFF ON

DLC (Quad D4) D4 OFF ON OFF

SLC Mode 1* D1D OFF ON ON

SLC Mode 3 D4 ON OFF OFF

SLC Mode 3 D1D ON OFF ON

6 Issue 4, May 2006 61180109L1-5D

Password and User ID

Password protection is a function of the SCU and is

factory disabled. If password authentication is enabled,

then the SCU displays the Logon screen. A valid User

Name and Password are required to access menus.

NOTE

The factory default User Name is “user”, and

the default Password is “password”. The User

Name and Password are not case sensitive.

Menu Navigation

To traverse through the menus, select the desired entry,

and press

ENTER. To return to previous menus, press the

ESC key.

The menu tree in Figure 3 on page 7 illustrates the path

to every provisioning, performance, and test access

point in the Total Access 1500 Quad LIU menu.

Menus

The following subsections describe the Total Access

1500 Quad LIU menu screens.

Main Menu

The LIU main menu provides access to the Quad LIU

for various functions such as viewing configuration,

provisioning, viewing the current status of the module,

setup of alarms, testing, and performance monitoring.

Configuration Screen

The LIU Configuration screen is a read-only display. It

provides configuration data pertaining to the Total

Access 1500 Quad LIU and cannot be changed. Infor-

mation such as unit name, CLEI code, part number,

product revision, and software revision are displayed.

Items such as software revision reflect new software

revisions as upgrades are performed.

Provisioning Menu

The LIU Provisioning menu is a top-level provisioning

screen which contains several other provisioning

categories that are used to make provisioning changes to

the Total Access 1500 Quad LIU.

The provisioning categories are listed below with all

respective submenus listed under each category.

Bank Provisioning

The Bank Provisioning menu items are used to set

general channel bank provisioning settings. Options

include the following:

1. Bank Mode: This option is used to select the bank

mode for the Total Access 1500. The settings

include the following:

•Single T1

•Dual T1

• Quad T1

• SLC-96 Mode I

• SLC-96 Mode III

•Manual Map

NOTE

If Manual Map is selected, time slots must be

assigned using the

Time Slot Assignment

option from the LIU Provisioning menu.

2. Counting Sequence: This option is used to select

the counting sequence of the selected T1. The

settings include the following:

•D4

•D1D

•DLC

NOTE

DLC counting is only available when in Quad

T1 Bank Mode and allows for automatic

mapping of the DS0 from each T1 to a specific

50-pin Amp connector. When provisioned,

DS0 from T1A are mapped to ports associated

with P1 (T/R), T1-B to P2 (T1/R1), T1-C to P3

(E/SG), and T1-D to P4 (M/SB) of the 23-inch

chassis (P/N 1180001L1). Not intended for use

with 19-inch chassis

3. In-band Loopback: This option is used to enable

or disable ANSI T1.403 in-band loopbacks.

4. Protection Line Switching: This option is used to

enable or disable T1 protection line switching.

NOTE

Protection Line Switching is only available for

SLC-96 Modes I and III.

61180109L1-5D Issue 4, May 2006 7

Figure 3. Quad LIU Menu Tree

1. Configuration

2. Provisioning

3. Timing Provisioning

1. Circuit Select

3. Line Buildout

2. Operation State

4. Line Code

1. Bank Mode

2. Counting Sequence

Unit Name

Part Number

CLEI Code

Product Revision

Software Revision

1. Bank Provisioning

2. DS1 Circuit Provisioning

3. Inband Loopback

1. Single T1

3. Quad T1

2. Dual T1

4. SLC-96 Mode I

5. SLC-96 Mode III

6. Manual Map

1. D4

2. D1D

1. Circuit A

3. Circuit C

2. Circuit B

5. Circuit P

4. Circuit D

1. Enable

2. Disable

1. 0-133 ft.

3. 266-399 ft.

2. 133-266 ft.

5. 533-655 ft.

4. 399-533 ft.

6. 0 dB

8. -15 dB

9. -22.5 dB

7. -7.5 dB

1. B8ZS

2. AMI

1. SLC-96

3. SF

2. ESF

1. Clock Mode

3. Secondary Timing Source

2. Primary Timing Source

2. Revertive

1. Non-revertive

1. Local

3. Loop B

2. Loop A

5. Loop D

4. Loop C

6. Loop P

7. CLK

1. Enable

2. Disable

5. Framing

1. Enable

2. Disable

4. Protection Line Switching

4. Time Slot Assignment

2. Assign T1 A

1. Assign by Card Slot

3. Assign T1 B

4. Assign T1 C

5. Assign T1 D

5. V90 LSB Marking

3. DLC*

* DLC Counting only applicable in Quad T1 Bank mode

8 Issue 4, May 2006 61180109L1-5D

Figure 3. Quad LIU Menu Tree (continued)

3. Status

5. Test

6. Performance Monitoring

4. Alarms

1. T1 Loopbacks

2. T1 Monitor Select

4. LIU Reset

1. None

3. T1 B

2. T1 A

5. T1 D

4. T1 C

Line Buildout

Framing

LIne Code

Loopback

Inband Loopback

Loop Status

Circuit A

Bank Mode

Timing Source

1. Enable

2. Disable

Primary

Secondary

Current

1. Daily

3. Qtr-Hour

2. Far-End Daily

5. Daily Threshold

4. Far-End Qtr-Hour

6. FE Daily Threshold

8. FE Qtr-Hour Threshold

9. Reset Performance Registers

7. Qtr-Hour Threshold

10. Restore Factory Default Thresholds

12. Disable all LIU Threshold Alarms

13. Select T1

11. Enable all LIU Threshold Alarms

Circuit C

Circuit B

Circuit P

Circuit D

1. T1-A

3. T1-C

2. T1-B

5. T1-P

4. T1-D

1. None

3. Line & Local

2. Local

5. Line

4. Payload

6. Remote Inband

6. T1 P

M.T.A. Status

1. CLK S OOS Alarm

7. Remote Line*

6. Remote Inband*

* Not available in SF or SLC-96 Framing.

1. T1-A

3. T1-C

2. T1-B

5. T1-P

4. T1-D

61180109L1-5D Issue 4, May 2006 9

DS1 Circuit Provisioning

The DS1 Circuit Provisioning menu items are used to

provision the DS1 circuit. The options include the

following:

1. Circuit Select: This option is used to select the

circuit to be provisioned. The settings include the

following:

• Circuit A

• Circuit B

• Circuit C

• Circuit D

• Circuit P

2. Operation State: This option is used to enable or

disable the operation state of circuits A through P.

3. Line Buildout: This option is used to select the

line length or the attenuation loss of the selected

T1. The settings include the following:

• 0-133 feet

• 133-266 feet

• 266-399 feet

• 399-533 feet

• 533-655 feet

•0 dB

• –7.5 dB

• –15 dB

• –22.5 dB

4. Line Code: This option is used to select the line

coding type. The settings include the following:

• B8ZS: This setting is used to enable Bipolar Eight

Zero Substitution (B8ZS), which allows for Clear

Channel operation for the T1 carrier system. This

option must be configured identically with all

other T1 network equipment on this circuit.

• AMI: This setting is used to enable Alternate

Mark Inversion (AMI). This option must be

configured identically with all other T1 network

equipment on this circuit.

5. Framing: This option is used to select the framing

format for the selected T1. This setting must be

configured identically with all other T1 network

equipment on this circuit. The settings include the

following:

• SLC-96: This setting is used to enable SLC-96

framing.

• ESF: This setting is used to enable Extended

Superframe Format.

• SF: This setting is used to enable Superframe

Format.

Timing Provisioning

The Timing Provisioning menu items are used to

establish the clock mode and primary and secondary

timing source. The options include the following:

1. Clock Mode: Settings include Non-revertive or

Revertive clock mode. This decision should be

based on whether a primary and secondary timing

source are available. In the event that the primary

timing source is lost, the Total Access 1500 LIU

automatically switches to the secondary timing

source.

• Revertive: This setting allows the unit to revert to

the primary timing source if and when it becomes

available.

• Non-revertive: This setting allows the unit to

remain on the secondary timing source. If Non-

revertive is chosen and the secondary timing

source becomes active due to a primary timing

source failure and the secondary source fails, the

unit switches to the primary timing source if it has

become available.

2. Primary Timing Source: This option is used to

select the primary timing source for the T1s. The

settings include the following:

•Local

• Loop A

• Loop B

• Loop C

• Loop D

• Loop P

•CLK

3. Secondary Timing Source:

This option is used to

select the secondary timing source for the T1s. The

settings include the following:

•Local

• Loop A

• Loop B

• Loop C

• Loop D

• Loop P

•CLK

This timing source becomes the current timing

source if the primary timing source is lost. If both

timing sources are lost, the timing reverts to local.

As timing sources are regained, the current timing

source reverts to the primary or secondary timing

source as they become available.

10 Issue 4, May 2006 61180109L1-5D

Time Slot Assignment

Used to assign time slots when the bank is in manual

map mode. This option allows time slots to be assigned

by T1 A, T1 B, T1 C, T1 D or by the card slot.

V90 LSB Marking

V90 Least Significant Bit (LSB) Marking sets the LSB

to a 1 in the direction of the analog loop. This is done in

order to improve V.90 modem performance. This

option should typically be enabled when the T1 passes

through a Digital Cross Connect (DCC).

NOTE

This option is enabled on a per DS0 basis.

Status Screen

The LIU Status screen is used to quickly view the status

of the loops, the provisioned settings for each T1, the

bank mode, M.T.A. status, the settings for primary and

secondary timing, and the status of the timing source.

Alarms Menu

The LIU Alarms menu is used to enable or disable the

external clock alarms. These alarms should be enabled

when a timing source is connected to the external clock

pins.

Test Menu

The LIU Test menu is used to perform loopbacks, select

which T1 is monitored by the front panel monitor jacks,

or reset the Quad LIU.

Performance Monitoring Menu

The LIU collects and stores the Performance

Monitoring (PM) information statistics for each of the

T1s. This PM information is stored in non-volatile

memory and is accessible through the Performance

Monitoring menu. The options include the following:

1. Daily: This option is used to display daily counts

of multiple performance monitoring statistics.

2. Far-End Daily: This option is used to display

daily counts of multiple performance monitoring

statistics associated with the far-end.

3. Qtr-Hour: This option is used to display counts

of performance monitoring statistics in seven

15-minute intervals.

4. Far-End Qtr-Hour: This option is used to display

counts of performance monitoring statistics in

seven 15-minute intervals associated with the far-

end.

5. Daily Threshold: This option is used to set

threshold points for daily counts and enable or

disable an alarm that occurs when this threshold is

exceeded.

6. FE Daily Threshold: This option is used to set

threshold points for far-end daily counts and enable

or disable an alarm that occurs when this threshold

is exceeded.

7. Qtr-Hour Threshold: This option is used to set

threshold points for 15-minute counts and enable

or disable an alarm that occurs when this threshold

is exceeded.

8. FE Qtr-Hour Threshold: This option is used to

set far-end threshold points for 15-minute counts

and enable or disable an alarm that occurs when

this threshold is exceeded.

9. Reset Performance Registers: This option is used

to reset all performance registers.

10. Restore Factory Default Thresholds: This option

is used to reset thresholds back to factory defaults.

11. Enable all LIU Threshold Alarms: This option is

used to enable all LIU threshold alarms.

12. Disable all LIU Threshold Alarms: This option is

used to disable all LIU threshold alarms.

13. Select T1: This option is used to select the T1 for

which performance monitoring statistics are to be

displayed.

For each statistic, the following specific data is

stored:

• Near End – Line:

- Code Violations (BVP)

- Errored Seconds (ES), and Severely Errored

Seconds (SES)

• Near End – Path:

- Code Violation (BVP)

- Errored Seconds (ES)

- Severely Errored Seconds (SES)

- Bursty Errored Seconds (BES)

- Severely Errored Framing Seconds (SEFS)

- Controlled Slip Seconds (CSS)

- Unavailable Seconds (US)

61180109L1-5D Issue 4, May 2006 11

• Far End – Path:

- Code Violation (BVP)

- Errored Seconds (ES)

- Severely Errored Seconds (SES)

- Bursty Errored Seconds (BES)

- Severely Errored Framing Seconds (SEFS)

- Controlled Slip Seconds (CSS)

- Unavailable Seconds (US)

The threshold for each statistic can be indepen-

dently enabled, disabled, or have a specific value

entered. When enabled, and crossing of the thresh-

old value results in a threshold entry into the Total

Access 1500 Alarm Log. All thresholds are

defaulted to disabled.

4. ALARMS

The Total Access 1500 Quad LIU supports an external

clock input out-of-service alarm and can be enabled or

disabled. When the alarms are enabled, an alarm

condition is created when the external timing source is

lost.

5. TESTS

The Test menu controls testing for the Total Access

1500 Quad LIU. The Test menu is used to select either

T1 A or B for testing, perform local and remote

loopbacks, select which T1 to monitor, and reset the

LIU. The loopbacks are described below.

Loopback Tests

The Quad LIU supports loopback tests to aid circuit

turnup and maintenance efforts. These tests are initiated

from the Total Access Site Manager or the Total Access

1500 local

ADMIN port on the SCU.

Local Loopback

T1 data is looped back toward the customer. The

transmit data is looped back after it has passed through

the framer and LIU circuitry.

Line and Local Loopback

The Quad LIU supports a bidirectional loopback via

menu access only. The loopback in the network

direction is of a line loopback type.

Payload Loopback

For a Payload Loopback, the T1 data is looped back

toward the network. The framing pattern, CRC6 calcu-

lation, and FDL bits are not looped back.

Line Loopback

For a Line Loopback, the T1 data is looped back toward

the network with framing and line coding unchanged.

Remote In-band Loopback

A Remote In-band Loopback initiates the transmission

of an in-band line loopback code toward the far end as

specified in ANSI T1.403.

Remote Line Loopback

A Remote Line loopback initiates the transmission of a

Facility Data Link (FDL) line loop up code toward the

far end as specified in ANSI T1.403. This loopback is

only available when the Total Access 1500 is provi-

sioned for Extended Superframe (ESF).

Remote Payload Loopback

A Remote Payload Loopback initiates the transmission

of a FDL Payload loop up code toward the far end as

specified in ANSI T1.403. This loopback is only

available when the Total Access 1500 is provisioned for

Extended Superframe (ESF).

6. MAINTENANCE

The Total Access 1500 Quad LIU requires no routine

maintenance for normal operation.

ADTRAN does not recommend that repairs be

attempted in the field. Repair services can be obtained

by returning the defective unit to ADTRAN. Refer to

the Warranty and Customer Service section for further

information.

12 Issue 4, May 2006 61180109L1-5D

7. SPECIFICATIONS

Specifications for the Total Access 1500 Quad LIU are

detailed in Table 4.

8. WARRANTY AND CUSTOMER SERVICE

ADTRAN will replace or repair this product within the

warranty period if it does not meet its published specifi-

cations or fails while in service. Warranty information

can be found at www.adtran.com/warranty

Refer to the following subsections for sales, support,

Customer and Product Service (CAPS) requests, or

further information.

ADTRAN Sales

Pricing/Availability:

800-827-0807

ADTRAN Technical Support

Pre-Sales Applications/Post-Sales Technical

Assistance:

800-726-8663

Standard hours: Monday - Friday, 7 a.m. - 7 p.m. CST

Emergency hours: 7 days/week, 24 hours/day

ADTRAN Repair/CAPS

Return for Repair/Upgrade:

(256) 963-8722

Repair and Return Address

Contact CAPS prior to returning equipment to

ADTRAN.

ADTRAN, Inc.

CAPS Department

901 Explorer Boulevard

Huntsville, Alabama 35806-2807

Table 4. Quad LIU Specifications

Specification Description

Environmental

Operating Temperature:

Storage Temperature:

Relative Humidity:

Maximum Current Draw

@ –48 VDC:

Maximum Heat

Dissipation:

–40°C to +65°C

–40°C to +85°C

95 percent maximum @

50°C, noncondensing

Online: 0.152 amps

Offline: 0.055 amps

Online: 7.3 watts

Offline: 2.6 watts

Physical

Dimensions:

Weight:

Height: 3.125 inches

Width: 1.14 inches

Depth: 10.1 inches

1 pound

Part Number

Total Access 1500

Quad LIU: 1180109L1

ADTRAN Total Access 1500 Installation and Maintenance

ADTRAN Total Access 1500 Installation and Maintenance

ADTRAN Total Access 1500 Installation and Maintenance

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