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Section 61150070L1-5, Issue 4
61150070L1-5D
LIU
1150070L1
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OUT
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REM LB
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EXT LT
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TEST
PRACTICES
Section 61150070L1-5
Issue 4, January 1999
List 1: CLEI Code # D4IME2A_ _ _
ACT LIU
ADVANCED COMMUNICATIONS TERMINAL
LINE INTERFACE UNIT
INSTALLATION & MAINTENANCE
1. GENERAL
This section provides installation and maintenance
information for the ADTRAN Advanced
Communications Terminal Line Interface Unit (ACT
LIU). Figure 1 is an illustration of the unit. Detailed
product information can be found in ADTRAN
Description, Section 61150070L1-2.
Features
The basic features of the ACT LIU, List 1, part
number 1150070L1 include the following:
•
Provides for T1 interface at the DSX-1 interface
•
SF or ESF data framing formats
•
AMI or B8ZS line code formats
•
Local or remote loopbacks
•
Front panel Bantam jacks for testing
•
Front panel indicators showing the status of the
unit
•
Front panel DB-9 connector for access to timing
signals for testing
Figure 1. ADTRAN ACT LIU List 1
•
Local, loop, or external timing modes
•
Composite clock output
•
Installs in the ACT 2300 and ACT 1900 channel
banks
Revision History
Issue 4 adds a Note on the T1 interface and updates
the document format.
Description
The ADTRAN ACT LIU is a common card plug-in
for the ADTRAN ACT 2300 and ACT 1900 channel
banks. It connects the channel bank to a T1 line at the
DSX-1 level. All data formatting and line encoding
are performed by the ACT LIU. The ACT LIU also
provides timing for the channel bank.
CONTENTS
1. GENERAL ............................................................. 1
2. INSTALLATION .................................................... 2
3. TESTING ................................................................ 3
4. MAINTENANCE ................................................... 4
5. WARRANTY AND CUSTOMER SERVICE ........ 5
TABLES
Table 1. ACT LIU Option Settings ............................ 3
Table 2. Port Data Settings ......................................... 3
Table 3. Faceplate Indicators ..................................... 5
FIGURES
Figure 1. ADTRAN ACT LIU List 1 .......................... 1
Figure 2. Internal Switch Location ............................. 2
Figure 4. ACT LIU Functional Block Diagram ..........4
Figure 3. Connector Pin Assignments ........................4
Figure 5. Faceplate Indication .....................................5
