NTP-024
: Circuit Order 363-206-305
Page 4 of 12 Issue 3, June 2000
DDM-2000 F
IBER
R
EACH
W
IDEBAND
S
HELF
DO ITEMS BELOW IN ORDER LISTED. . . . .FOR DETAILS, GO TO
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.
NOTE:
Up to 84 DS1s may be terminated in a ring network. Once a
DS1 is terminated, that timeslot must be reserved in both
directions around the ring to the far end. Therefore, if a DS1
is terminated (cross-connected) to a function group on a
near-end and far-end terminating shelf, it must also be
pass-through cross-connected in every shelf in the network.
See "Cross-Connection Provisioning" in the "Administration
and Provisioning" section of this manual for more information
on cross connections.
Use the ent-crs-vt1: or ent-crs-sts1: command at the
new shelf to make all required
pass-through
cross-connections
(for example, ent-crs-vt1:m-1-1-1,m-1-1-1 or
ent-crs-sts1:m-1,m-1). Pass-through cross-connections
must be made at the new shelf to correspond to each terminating
cross- connection present on every shelf in the ring network. (See
Figure 1.)
To Next Page
Loading...