7-10 Issue 9 October 1998
363-206-204
Release 8 Installation Tests
Local Wiring Cross-Connect Test
Description
This test verifies proper cabling from the DDM-2000 OC-3 to the DSX-1 or DSX-3/
EC-1 cross-connect panels, or to the FT-2000/DACS IV 2000.
NOTE
:
After completing the DSX cabling test, isolate and correct any incorrect wir-
ing. If any cabling is corrected, repeat the DSX test until the test passes
without failures.
NOTE
:
If the shelf is not fully equipped, move circuit packs around and repeat the
test. Test all circuit pack positions which have DSX cabling.
Preparation Procedure
1. Loop the DS1 signals at the DSX cross-connect panel (if applicable). It is
best to loop all the DS1s, but the minimum looping is in groups of four.
It is best to unequip the low-speed positions without loopbacks to
speed up the DSX cabling test. This is done by unseating the undes-
ired low speed packs, then pressing the UPD/INIT pushbutton on the
SYSCTL.
2. Loop the DS3/EC-1 signals at the DSX cross-connect panel (if applicable).
3. If cross-connect panel is not used, place a BNC to BNC connector at the
end of the DS3 cables OR have Craft Personnel place an internal loopback
at the terminating equipment (FT-2000/DACS IV 2000).
4. The optical fiber loopbacks should still be in place. Refer to Figure 7-1,
DSX cabling test.
Procedure
1. Issue the command
test-auto:md=dsx
(TEST-AUTO TURNUP).
The CR, MJ, and MN LEDs on the user panel will light. This indicates the
start of the DSX test. Any DSX cabling failures will be indicated by a flashing
FAULT LED on the corresponding circuit pack during the test. When the test
has successfully completed, all LEDs will go out. The results will be
displayed on the CIT, with a
g
indicating good, an F indicating failure, and a
- indicating unequipped under each cross-connect designation.
Summary of Contents for DDM-2000 OC-3
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