11-2
Issue 9 October 1998
363-206-204
Troubleshooting
The Engineering and Installation Services group provides the customer with an
individually tailored, quality-tested job that meets our published high standards
and the customer’s operational requirements. The group ensures that the
customer’s system order is integrated into a complete working system tailored to
office conditions and preferences. This process provides for the customer’s
complete needs. It includes provisions for cabling, lighting, power equipment, and
ancillary connections to local and/or remote alarm systems. The group will also
respond to any customer changes that occur during installation.
All equipment engineered and installed by Lucent Technologies is thoroughly
tested and integrated into a reliable system at cutover. Once approved by Lucent
Technologies’ Quality Assurance Test group, the system is turned over to the
customer.
The group also provides any specialized engineering and installation services
required for unusual or highly individualized applications. These specialized
services may include engineering consultations and data base preparation. Your
local Account Executive can provide more information about these services.
Basic Troubleshooting Techniques
Description
This procedure covers some basic troubleshooting techniques used to isolate and
correct failures during the installation phase. This procedure is directed toward
troubleshooting out-of-service systems only and should not be performed on
in-service equipment.
NOTE
:
For troubleshooting in-service equipment refer to 363-206-202,
DDM-2000
OC-3 Multiplexer User/Service Manual
(Through Release 7), 363-206-280,
DDM-2000 OC-3 Multiplexer User/Service Manual
(Releases 8 through 11)
or 363-206-285,
DDM-2000 OC-3 Multiplexer User/Service Manual
(Release 13).
NOTE
:
If only green LEDs are lighted, there is no problem with the DDM-2000
OC-3.
NOTE
:
For a description of the LEDs, refer to the "Installation Test" section.
NOTE
:
Movement of circuit packs or cables may cause the DDM-2000 OC-3 to
report alarms due to a configuration mismatch between the SYSCTL and
the transmission circuit packs.
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