363-206-285
Issue 3, June 2001 Page 1 of 12
DDM-2000 OC-3 MULTIPLEXER
Operation and Maintenance (TOP)
Overview
This section supports the turnup, operation, and maintenance of the DDM-2000 OC-3
Multiplexer. It includes the following five separate tabs:
■Acceptance — Yellow tab
■System Turnup/Circuit Order — Orange tab
■Operation — Green tab
■Trouble Clearing — Red tab
■Detailed Level Procedures — Blue tab.
TOP Section Organization
The Acceptance tab covers procedures to check the shelf or system after the shelf has
been equipped or after the system has been established.
The System Turnup/Circuit Order tab includes procedures for the following:
a. Equipping (turning up) a shelf in a looped back condition for the first time.
b. Establishing an end-to-end system after all shelves have been equipped.
c. Establishing initial end-to-end DS1, DS3, EC-1, OC-3c, TMUX DS3 to DS1, HDSL,
T1, or LAN service.
d. Adding, converting, or discontinuing DS1, DS3, EC-1, TMUX DS3, HDSL, T1, or
LAN service to an in-service system.
e. Adding new shelves or spans to existing configurations.
f. Upgrading software to a new release.
g. Converting or upgrading an OC-3 system to an OC-12 system.
h. Upgrading an OC-3 point-to-point system to path switched ring.
i. EstablishingOC-3/IS-3dualringinterworking(DRI)OC-3toOC-12orFT-2000OC-
48.
j. Upgrading OC-3/FT-2000 OC-48 DRI from EC-1 to OC-3.
k. Establishing single-homed or dual-homed FiberReach access via Release 15 DDM-
2000 OC-3 or OC-12 backbone ring.
l. Establishing single-homed or dual-homed OC-3 access via Release 7 DDM-2000
OC-12 backbone ring.
m. Establishing single-homed or dual-homed OC-3 access via Release 15 DDM-2000
OC-12 backbone ring.
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