363-206-305 Detailed Level Procedure:
DLP-510
Issue 3, June 2000 Page 1 of 8
DDM-2000 F
IBER
R
EACH
W
IDEBAND
S
HELF
Perform DS1 Transmission Test
1.
NOTE:
This procedure may be used to perform individual DS1 transmission tests
in the mux (toward the fiber) or demux (toward the DSX or T1 lines)
direction. When this procedure is being used to perform end-to-end DS1
tests, it is assumed that the complete end-to-end system has already
been tested and that only a particular DS1 port is being tested at this
time. It is further assumed that the DS1 options (DS1/DS1PM circuit
packs) have been set correctly (using the set-t1: command) at both
ends of the circuit being tested. The rtrv-t1: command may be used
to check for proper DS1 option settings. Ensure proper DS1 line coding
settings (AMI/B8ZS) at DS1 ends of the circuit.
NOTE:
Transmission tests in the
mux
direction may be local or end-to-end tests
(see Figure 1). Transmission tests in the
demux
direction may be local
cross-connect tests (see Figure ). The "Commands and Report"s section
of this manual, under TEST-TRMSN-T1, gives an explanation of
commands.
NOTE:
This test can be performed either with a CIT and the automated test
command test-trmsn-t1 or with a suitable low speed test set (such
as a KS-20775, L1 DS1 Error Rate Test Set or a KS-22331,
L1/KS-22332, L2 DS1/DS1C/DS2 Error Rate Test Set).
NOTE:
When this procedure is used to do end-to-end tests, one DDM-2000 shelf
will be referred to as the near end and the other shelf as the far end.
These designations are arbitrary; either shelf can be the near-end or the
far-end shelf.
NOTE:
Proper cross-connections must be made at each shelf to establish the
complete end-to-end path for the DS1 circuit being tested. Release 3.0
has no default cross-connections and supports only manual VT1.5
cross-connections. Release 3.1 and later has no default
cross-connections and supports only manual VT1.5 and STS-1
cross-connections. See the description of the following commands in the
"Commands and Reports" section of this manual: dlt-crs-sts1,
dlt-crs-vt1, ent-crs-sts1, ent-crs-vt1, rtrv-crs-sts1,
rtrv-crs-vt1, set-ne, and rtrv-ne. See
Cross-Connection
Provisioning
in the "Administration and Provisioning" section of this
manual for more information on cross-connection provisioning.
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