946 NTAK792.0 Mb PRI card
Clock controller interface
The clock controller circuitry on the NTAK79is identical to that of the
NTAK20clock controller.
Though several DTI/PRI packscan exist in one system, only one clock
controller may be activated. All other DTI/PRI clock controllers must be
switched off.
clock controller circuitry on the NTAK79is identical to that of the NTAK20
clock controller.
Note that while several DTI/PRI packs may existin one system, only one
clock controller may be activated (all other DTI/PRI clock controllers must
be switched off).
The clock controller circuitry on the NTAK79is identical to that of the
NTAK20clock controller.
Though several DTI/PRI packscan exist in one system, only one clock
controller may be activated. All other DTI/PRI clock controllers must be
switched off.
Clocking modes
The clock controller can operate in one of two modes:
•tracking
•non-tracking (also known as free-run)
The clock controller can operate in one of two modes: tracking or
non-tracking (also known as free-run).
The clock controller can operate in one of two modes:
•tracking
•non-tracking (also known as free-run)
For more information on clocking modes, see 180.
Trackingmode There are two stages to clock controller tracking:
•tracking a reference, and
•locked onto a reference.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 01.04 Standard
Release 5.0 23 May 2008
Copyright© 2003-2008, Nor tel Networks
.