Atec Acterna-TTC-209OSP - Manual (Page 6)

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– HDSL remote access shelf
With the HDSL remote access shelf,
the user gains additional access
points on the HDSL span. The shelf
houses the HDSL transmission unit at
the remote site, namely a standard
200/400-mechanics HTU-R card.
Much like the HTU-C card within the
HDSL doubler power supply performs
T1-to-HDSL, the HTU-R within the
remote access shelf performs the
HDSL-to-T1 conversion. The remote
access shelf also contains T1 jacks
that allow the T-BERD Outside Plant
Tester to perform BER testing.
Hardware accessories
Users can order accessories for the
T-BERD Outside Plant Tester that can
enhance the test set’s functionality
in performing a number of testing
applications.
Troubleshoot T1 spans
– Repeater adapter
The repeater adapter enables the
T-BERD Outside Plant Tester to test
repeatered spans with a single cable.
During this process, the user can
control test access to easily section-
alize span trouble. The repeater
adapter allows testing toward the
customer or central office as well as
testing the repeater itself to section-
alize span trouble. It also provides
an additional access point, at the
repeater casing, along the T1 span.
– Repeater power supply
The repeater power supply powers-up
a T1 circuit from the main distribution
frame (MDF) which allows the T-BERD
Outside Plant Tester to test and
qualify circuits prior to installation
and connection of the central office
repeater. If the span is longer than
17 repeaters, the user can select a
current between 60 mA, 100 mA, and
140 mA to power-up longer spans.
The repeater power supply displays
span voltage and current for compari-
son with circuit design.
– Repeater power supply multiplexer
The repeater power supply multi-
plexer allows the user to switch
automatically between T1s in the
field. It can remotely switch power
between up to six T1 spans and
provide regenerative signal
loopback for single-technician
applications. It may be used with
standard and intelligentline repeaters.
Turn Up and Troubleshoot HDSL spans
– HDSL doubler power supply
With the HDSL doubler power supply,
the technician can access the span at
the MDF and emulate the HDSL trans-
mission unit at the central office
(HTU-C) by housing the 220 mechan-
ics HTU-C card. The HTU-C card inside
the doubler power supply performs
T1-to-HDSL conversion and supplies
the appropriate span power. The front
panels of the doubler power supply
contain T1 jacks that allow the T-BERD
Outside Plant Tester to perform BER
testing. In addition, the T-BERD
Outside Plant Tester can provide
loopback capabilities using prepro-
grammed HTU-C, HTU-R, and doubler
loopcodes.