ADTRAN 1500 Installation And Maintenance Practice
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ADTRAN 1500 Installation And Maintenance Practice

Dual line interface unit
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Total Access 1500 Dual Line Interface Unit (LIU)
CONTENTS
1. General .................................................................... 1
2. Installation............................................................... 2
3. Provisioning ............................................................ 4
4. Alarms ................................................................... 10
5. Tests ...................................................................... 10
6. Maintenance .......................................................... 10
7. Specifications ........................................................ 11
8. Warranty and Customer Service ........................... 11
FIGURES
Figure 1. Dual LIU Front Panel .................................. 1
Figure 2. DIP Switches................................................ 4
Figure 3. Dual LIU Menu Tree ................................... 6
TABLES
Table 1. Compliance Codes ........................................ 2
Table 2. Front Panel LEDs.......................................... 3
Table 3. Dual LIU Switch Settings ............................. 5
Table 4. Dual LIU Specifications.............................. 11

1. GENERAL

This practice is an installation and maintenance guide
for the ADTRAN
Total Access 1500
®
Interface Unit (LIU) Common Module.
the Dual LIU (P/N 1180009L1) 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, Dual LIU software T07D, and
incorporates the addition of new features including:
• Changed
CLK OOS Alarm
Disable as factory default
• Incorporation of automatic mapping for 2B+D
ISDN when in Dual T1 mode
• Removed signaling 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.
61180009L1-5D
®
Installation and Maintenance Practice
Dual Line
®
Figure 1
shows
in Alarms menu to
Trademarks: Any brand names and product names included in this document are
trademarks, registered trademarks, or trade names of their respective holders.
CLEI Code: VAL2HF0A_ _

Figure 1. Dual 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 Dual 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 Dual 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 Dual LIU.
Section 61180009L1-5D
Issue 4, May 2006
1

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Summary of Contents for ADTRAN 1500

  • Page 1: Table Of Contents

    • Incorporation of automatic mapping for 2B+D ISDN when in Dual T1 mode • Removed signaling 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. Trademarks: Any brand names and product names included in this document are 61180009L1-5D trademarks, registered trademarks, or trade names of their respective holders.

  • Page 2: Installation

    – – Instructions for Installing the Module The Dual LIU plugs directly into the Total Access 1500 channel bank. No installation wiring is required. The Dual LIU should be installed in the Total Access 1500 channel bank in the slot labeled...

  • Page 3: Table 2. Front Panel Leds

    2. Hold the Dual LIU by the front panel while supporting the bottom edge. 3. Align the Dual LIU card edges to the guide grooved for the slot designated 4. Insert the Dual LIU until the edge connector seats firmly into the backplane. 5.

  • Page 4: Provisioning

    LED on the front panel will light indicating that the settings have changed. Electronic Provisioning The craft ports on the Total Access 1500 SCU are used to change default options and obtain access module status through menu screens. To access the menu...

  • Page 5: Table 3. Dual Liu Switch Settings

    Local clock – provided by local LIU Loop A clock – uses recovered clock from T1 bit stream* External clock input Select the appropriate Terminal Type and counting mode for the Total Access 1500 system. Terminal Mode Counting Dual D4...

  • Page 6: Figure 3. Dual Liu Menu Tree

    Unit Name CLEI Code 1. Configuration Part Number Product Revision Software Revision 1. Bank Provisioning 2. Provisioning 2. DS1 Circuit Provisioning 3. Timing Provisioning 4. Time Slot Assignment 1. Bank Mode 2. Counting Sequence 3. Inband Loopback 1. Circuit Select 2.
  • Page 7 3. Status 4. Alarms 5. Test 6. Performance Monitoring * Not available in SF Framing. Figure 3. Dual LIU Menu Tree (continued) 61180009L1-5D Line Buildout Circuit A LIne Code Circuit B Framing Inband Loopback Loopback Loop Status Primary Timing Source Secondary Current Bank Mode...
  • Page 8 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. Options include the following: • Single T1 • Dual T1 •...
  • Page 9 • Revertive: This option allows the unit to revert to the primary timing source if and when it becomes available. • Non-revertive: This option 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 will switch to the primary timing source if it...

  • Page 10: Alarms

    The threshold for each statistic can be independently enabled, disabled, or have a specific value entered. When enabled, and crossing of the threshold value will result in a threshold entry into the Total Access 1500 Alarm Log. All thresholds are defaulted to disabled. 4. ALARMS The Dual LIU supports an external clock input out-of- service alarm and can be enabled or disabled.

  • Page 11: Specifications

    1180009L1 61180009L1-5D 8. WARRANTY AND CUSTOMER SERVICE Table 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.
  • Page 12 ® Issue 4, May 2006 61180009L1-5D...

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Total access 1500 liu 1180009l1

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