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Section 61102040L4-5, Issue 261102040L4-5B
1
1. GENERAL
This practice provides installation and maintenance
information for the ADTRAN
SLC-5 U-BR1TE III w/
PWR and DDS Loopbacks (U-BR1TE III). Figure 1
is an illustration of the unit. The 1102040L4 is a
direct replacement and fully compatible with the
previous ADTRAN SLC-5 U-BR1TEs, including the
1100040L1, 1100040L3, 1102040L2, and the
1102040L1.
ISDN/DDS
The U-BR1TE III employs features for both ISDN and
DDS transport. ISDN comprises the major
functionality and is described in this section.
A description of DDS functionality is located in
Section 3.
Revision History
This document has been revised to correct switch
SW1-5 function described in Table 2.
Section 61102040L4-5B
Issue 2, January 2001
CLEI Code #5SC597IF_ _
SLC-5 U-BR1TE III w/PWR and DDS Loopbacks
ISDN 2B1Q Interface
Installation and Maintenance
Functional Description
The U-BR1TE III is a channel unit for use in the
AT&T
®
SLC Series 5 and Series 2000 Digital Loop
Carrier Systems. The SLC-5 U-BR1TE III w/PWR
and DDS Loopbacks combines the functionality of a
standard SLC-5 U-BR1TE III and a U-Repeater
Powering Module which will simplify the installation
of the U-Repeater when deployed from a Digital Loop
Carrier (DLC) facility. Span powering also allows
deployment of 2-wire DDS when an IDSL OCU-R is
used to terminate the ISDN local loop. This eliminates
the need to provide AC power at the customer premises.
The U-BR1TE III can be used in SLC-5 Central
Office Terminal (COT) deployed as Feature Package
C (FPC), and SLC-5 Remote Terminals (RT)
deployed as Feature Package C without Autocut
(FPC/AC) and Feature Package B. The U-BR1TE III
will also operate in SLC-2000 COTs and RTs when
deployed as SLC Mode 1. Clear Channel capability
(B8ZS) is not required of the T1 facility if zero byte
substitution (ZBS) is enabled on the U-BR1TE III.
The U-BR1TE III plugs into a single physical slot of
the channel bank. Three time slots are required for
Figure 1. ADTRAN SLC-5 U-BR1TE III
CONTENTS
1. GENERAL .............................................................................. 1
2. INSTALLATION.................................................................... 3
3. TESTING ................................................................................ 8
4. MAINTENANCE ................................................................. 13
5. WARRANTY AND CUSTOMER SERVICE ..................... 13
FIGURES
Figure 1. ADTRAN SLC-5 U-BR1TE III................................. 1
Figure 2. SLC-5 U-BR1TE Slot Placement Examples ............. 3
Figure 3. Backplane Pin Assignments ...................................... 4
Figure 4. SW1 and SW2 Labeling ............................................ 4
Figure 5. Position Switch Settings at Network Locations for
ISDN Applications ..................................................... 6
Figure 6. SLC-5 U-BR1TE III IDSL/DDS Circuit Diagram.... 7
Figure 7. IDSL/DDS Loopback Response .............................. 11
Figure 8. ADTRAN U-BR1TE Bidirectional Loopback ........ 11
Figure 9. IDSL/DDS Remote End Initiated Loopback, Local
Loop.......................................................................... 12
Figure 10. IDSL/DDS Remote End Initiated Loopback,
Customer Loop......................................................... 12
Figure 11. IDSL/DDS Trouble Codes ....................................... 13
TABLES
Table 1. SLC-2000 CIT Provisioning Options ........................... 3
Table 2. Internal Switch Option Settings .................................... 5
Table 3. Rotary Switch Legend ................................................... 8
Table 4. Front Panel LED Indication .......................................... 9
UBR1TE III
1102040L4
PWR / DDS
ACT
LP
CR
B
2
B
1
SW1
SW3
SW2
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