Nortel Networks NN43001-318 - Manual (Page 61)

Installation procedures 61
• If the primary reference clock is derived from a BRI DSL, then the CC
daughterboard is on the MISP associated with that line card. DSL0 of
that line card is used to generate the reference clock.
• To use a DTI/PRI as a secondary clock source reference, the clock
controller daughterboard must reside on a DTI, PRI, or MISP. The
clock is extracted from the target DTI/PRI span and routed to the clock
controller over the back plane.
• To use a BRI DSL as a secondary clock source reference, the clock
controller daughterboard must reside on a DTI/PRI or an MISP. The
clock is extracted from DSL1 of the source line card and routed over
the backplane to the CC.
Procedure 17
Installing the SILCs and UILCs
Step Action
1 Remove the cover from the assigned system.
ATTENTION
IMPORTANT!
Wear the static discharge bracelet located inside the cabinet or MG
1000S before handling circuit cards. Failure to wear the bracelet can
damage the circuit cards.
2 Remove the SILC or UILC from its shipping package and hold it by
its card locking devices.
3 Insert the SILC or UILC into the selected card slot and lock it in place.
4 Use the jumper plugs to configure the line powering options for the
SILC. Each port is equipped with its own set of option jumper plugs,
enabling individual configurations for each DSL.
The SILC has three line powering options. These options are
configured using the jumpers located near the backplane connector
as shown in
Figure 16 "SILC line power options" (page 62) .
Nortel Communication Server 1000
ISDN Basic Rate Interface Installation and Commissioning
NN43001-318 01.02 Standard
Release 5.0 20 June 2007
Copyright © 2003-2007, Nortel Networks
.