Description; Table 1. Hdsl Compatibility - ADTRAN HDSL 3192 HTU-C Installation And Maintenance Practice

HDSL 3192 HTU-C Installation and Maintenance Practice

Description

DSX 1 signals are provided to and received from the network while 2B1Q HDSL signals are
provided to the local loop. The 3192 HTU-C works in conjunction with the ADTRAN HDSL
Transceiver Unit for Remote Office (HTU-R) and HDSL Range Extender (HRE) to provide a DS1
service up to 36,000 feet on the local loop.
This 3192 HTU-C works with multiple list versions of the HTU-R and HRE as listed below.
Part Number
1245024L1
1246026Lx
1247024L1
1247026L1
1246041L1
1246045L1
1247041L1
1247045L1
x = any number
The 3192 HTU-C can be deployed in circuits consisting of one HTU-C and one HTU-R. When
deployment requires the HRE, the 3192 HTU-C can be deployed with one or two (T200, 239, or
819A) and one HTU-R.
The HDSL local loop operates as two independent subsystems, each operating over a single
twisted pair. The 3192 HTU-C communicates over these two twisted pairs to the HTU-R. Each
subsystem carries half of the total bandwidth along with a small amount of overhead used for
maintenance and performance monitoring.
System power and alarm bus connections are made through the backplane of the 3192 shelf.
DSX 1 and HDSL signals are connected through the wire-wrap pins or the 50 or 164-pin shelf
connectors related to each individual slot.
The 3192 HTU-C contains an onboard fuse. If this fuse opens, it supplies a –48 VDC voltage to
the fuse alarm bus; all front panel indicators turn off. This fuse is not field-replaceable.
The 3192 HTU-C uses a DC-to-DC converter to derive its internal logic and span powering
voltages from the –48 VDC office supply. The 3192 HTU-C can span power HREs and HTU-Rs
as listed above. The –190 VDC span powering voltage meets all requirements of Class A2
voltages as specified by Bellcore GR-1089-CORE.
2

Table 1. HDSL Compatibility

Description
T400 HTU-R with Local Power Option
6th Gen HTU-R
7th Gen HTU-R, Local Power
7th Gen HTU-R, Span Power
6th Gen T200 HRE
6th Gen 239 HRE
7th Gen T200 HRE
7th Gen 239 HRE
61247004L1-5A