Lucent DDM-2000 OC-3 User And Service Manual page 404

363-206-285
Issue 2, February 2000
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3. Determine the optical loss of each optical span from office records
or by making the required measurements.
4.
NOTE:
The rtrv-eqpt: command retrieves the Equipage and
Version Report. This report lists the circuit pack type
and version information for one or more slots. See the
Commands and Reports section of this manual for a
description of the rtrv-eqpt: command format.
NOTE:
If work order or office records do not specify OLIU types,
refer to 363-206-200, DDM-2000 OC-3 and OC-12
Multiplexers, Applications, Planning, and Ordering Guide
and/or 363-206-285, DDM-2000 OC-3 Multiplexer, TARP
Release 13 and Later, User/Service Manual (TOP)—Volume
II , for a description of OLIU circuit packs and applications.
Optical line power measurements and/or office records must
be used to verify that the span length can be supported.
At the host OC-3 or OC-12 node, verify/install 26G2-U, 27G-U, or
27G2-U OLIU circuit packs in FUNCTION UNITS slots (A, B, or
C) being used for FiberReach access.
5.
NOTE:
If fecom is enabled, an inconsistent DCC values alarm
will occur when the OLIUs are looped back. Normally, the
alarm occurs when the user/network parameters on the
OHCTLs at both ends of the DCC are set the same. To clear
the alarm during a fiber loopback, use the
set-fecom:address:com=disable command to disable
the DCC.
Connect optical loops for FUNCTION UNITS OLIUs just installed.
6.
NOTE:
The Network Side/User Side parameters of the
set-fecom: command must be set opposite at each end of
the optical spans. For example, see Figures 2 and 3.
Use the rtrv-fecom/set-fecom command to verify/set
Network Side/User Side parameters at each end of optical span
being established.
DDM-2000 OC-3 M
System Turnup:
ULTIPLEXER
NTP-043
Page 2 of 8
DLP-504
DLP-505