Operation - Nortel Circuit Card Installation Manual

Figure 78
Clock Controller – Option 1
Primary
clocking
source
Secondary
clocking
source

Operation

REF 1
Primary
Reference
REF 2
REF 1
Secondary
Reference
REF 2
The following discussion describes possible scenarios when replacing a
digital trunk NT8D72BA PRI2 card or QPC536E DTI2 card or NTCK43
Dual PRI card configuration with a NT5D97 DDP2 card configuration.
NT5D97 Dual-port DTI2/PRI2 card
Primary
Primary
Secondary
Secondary
Circuit Card
Page 359 of 906
Clock
Controller 0
J1
J2
J3
Clock Controller
Backup
Clock
Controller 1
J1
J2
J3
553-7401
Description and Installation