363-206-305 System Turnup:
NTP-017
Issue 3, June 2000 Page 3 of 6
DDM-2000 F
IBER
R
EACH
W
IDEBAND
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HELF
DO ITEMS BELOW IN ORDER LISTED . . . . FOR DETAILS, GO TO
7. Verify that no LEDs or alarms are activated. If any LEDs or
alarms are activated, refer to Trouble Clearing: IXL-001 and
follow the appropriate trouble-clearing procedure.
8. If one of the terminating nodes is a DDM-2000 OC-3 shelf
equipped with STS1E circuit packs for an EC-1 interface to
support services being established, establish initial EC-1
low-speed interface [NTP-034] in 363-206-285,
DDM-2000 OC-3
Multiplexer, TARP Release 13 and Later, User/Service Manual
(TOP) - Volume II
.
9.
NOTE:
Ring releases support only manual VT1.5 and STS-1
cross-connections. Manual STS-1 and/or DS1
cross-connections have to be made at each shelf to
configure the transmission path for each circuit being
established. Either terminating (drop) cross-connections or
"drop and continue" cross- connections are made at
terminating nodes and pass-through cross-connections are
made at intermediate nodes.
NOTE:
In ring configurations, you should use the following rules in
establishing cross-connections in each ring:
1. All drop connections (including DRI, if present) from
the same STS-1 timeslot must be provisioned the
same, either all VT1.5 or STS-1.
2. If all 28 VT1.5s (DS1s) in an STS-1 are being passed
through at a node in a VT1.5 path-switched ring, then
the cross- connection may be provisioned as either a
pass-through STS-1 or VT1.5. However, if you
anticipate dropping VT1.5s from the pass-through
node in the future, you should provision the
pass-throughs as VT1.5 cross-connections.
3. On STS-1 path-switched rings, all nodes in the ring
must be provisioned as STS-1 cross-connections.
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