Nortel 1000 Installation And Commissioning Manual page 178

178 Clock Controller description and installation
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Copyright © 2003-2007, Nortel Networks
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Insert the replacement card into the selected slot and hook the
locking devices.
Connect the reference cables (J1 and J2) and the clock-to-clock
cable (J3) to the replacement card.
Set the ENB/DIS switch to ENB on the replacement card.
Disable the software and enable the card. At the prompt, enter:
LD 60
DID CC x Disable clock controller card, where x=0 or 1
ENL CC x Enable clock controller card, where x=0 or 1
Verify that the card is active. At the prompt, enter:
SSCK x Get status of system clock, where x=0 or 1
**** Exit the overlay
Note: Wait two minutes before proceeding to next step.
Activate the new card and verify that it is active. At the prompt enter:
LD60
SWCK Switch system clock from active to standby
SSCK x Get status of system clock, where x = 0 or 1
TRCK PCK Track primary clock, where x = 0 or 1
RCNT Reset alarm counters of all digital cards
**** Exit the overlay
Set the clock source to the status it was in before the replacement
procedure.
Verify clock switchover and tracking. At the prompt, enter:
SWCK Switch system clock from active to standby
SSCK x Get status of system clock, where x = 0 or 1
**** Exit the overlay
Nortel Communication Server 1000
ISDN Primary Rate Interface Installation and Commissioning
NN43001-301 02.03 Standard
Release 5.5 7 December 2007
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