365-575-102 Operation:
Issue 8.0, July 2002 Page 1 of 6
NTP-004
Disconnect Dual Ring Interworking (DRI) STS-3 (or
STS-1) Cross-Connections
DOITEMSBELOWINORDERLISTED........ FORDETAILS,GOTO
1. Overview: This operations procedure is used to disconnect the
cross-connections at the primary and secondary nodes of an FT-2000 2-fiber
ring network. These cross-connections were necessary to support dual ring
interworking operation with a second SONET ring network. This procedure
can be performed from any node in the FT-2000 2-fiber ring network.
!
CAUTION:
Cross-connections deleted at the wrong points can cause service
interruptions.
NOTE:
Dual ring interworking (DRI) operation is only supported in Software
Releases 4.1 and later.
NOTE:
For Releases 6 and earlier, an electrical low-speed interface circuit
pack has three low-speed ports. All three ports associated with the slot
will be affected by a slot-to-tributary or a tributary-to-slot cross-connect
deletion.
NOTE:
For Releases 6 and earlier, an optical low-speed interface circuit pack
(OC-3) operates on a slot basis and is affected by a slot-to-tributary or a
tributary-to-slot cross-connection deletion.
Obtain the operation instructions (work
order) that indicate which cross-connec-
tions are to be deleted.
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