Nortel Communication Server 1000S Installation And Configuration Manual page 62

Page 62 of 120 Configuring ISDN BRI hardware
553-3001-218 Standard 2.00
Use the following guidelines when installing the clock controller on the MISP:
• If the primary reference clock source comes from a PRI or DTI, then
the clock controller is a daughterboard on the DTI/PRI card.
• 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 16
Installing the SILCs and UILCs
1 Remove the cover from the assigned system.
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 13 on page
September 2004
IMPORTANT!
63.