Lucent Technologies DDM-2000 OC-3 Installation Manual

363-206-204
Troubleshooting
Issue 9 October 1998
11-3
NOTE
:
Circuit packs should not be removed or installed unless the SYSCTL is
present.
NOTE
:
Whenever circuit packs are removed from the shelf, update the SYSCTL
equipment list by pressing the UPD/INIT pushbutton on the SYSCTL, even
if just reseating a circuit pack.
NOTE
:
If the DDM-2000 OC-3 appears to be reporting inconsistent alarms, initial-
ize the SYSCTL as follows:
a. Unseat the SYSCTL.
b. Reseat the SYSCTL.
c. When the CR LED on the user panel starts to flash, press the
UPD/INIT pushbutton on the front of the SYSCTL within 10 seconds.
NOTE
:
DS3 and DS1 circuit packs cannot be installed in the same function group.
NOTE
:
STS-1E and DS1 circuit packs can only be installed in the same function
group when the STS-1E circuit packs are set for the High-Speed mode
(Release 6.0 or greater LINEAR only). When the STS-1E circuit packs are
set for the High-Speed mode only STS-1E circuit packs are allowed in the
shelf (No OLIUs in the main or function unit slots).
NOTE
:
A flashing FAULT LED indicates a loss of input signal, not a circuit pack fail-
ure.
NOTE
:
A solid FAULT LED indicates a failure of the circuit pack, shelf, or possibly
another circuit pack interfacing with the "failed circuit pack".
NOTE
:
The OLIU is the only circuit pack which can have both circuit packs active
at the same time.
NOTE
:
For more intensive troubleshooting (down to the signal level), backplane
connector pin assignments are provided in Tables 10-1 through 10-12.

Lucent Technologies DDM-2000 OC-3 Specifications

General

Brand	Lucent Technologies
Model	DDM-2000 OC-3
Category	Multiplexer
Language	English