Demand test descriptions and error codes - Avaya Support

CAUTION: If
CAUTION: If,
CAUTION: If
CAUTION: If
EXP-INTF (Expansion Interface Circuit Pack)
! CAUTION:
you remove the PN EI circuit pack that is active or that was active when the PN
was last in service, the Tone-Clock lead will revert to the default value which will
cause the Tone-Clock circuit pack located in the A carrier to become the active
Tone-Clock. This characteristic can be deceiving. Replacing or reseating the
active PN EI circuit pack might restore the link(s) temporarily. However, if the
Tone-Clock circuit pack located in the B carrier was really the source of the
problem and not the EI circuit pack, then the link(s) will go down again the next
time a Tone-Clock switch to the Tone-Clock in the B carrier is attempted (probably
when the scheduled Tone-Clock switch occurs).
! CAUTION:
after every link is restored, you suspect the problem might have been due to a
defective Tone-Clock circuit pack, switch to this Tone-Clock at an appropriate
time. If the Tone-Clock circuit pack was the cause of the problem and the same EI
circuit packs are in place, the same link(s) will go down again.
a. When the suspect Tone-Clock circuit pack resides in an in-service pot network (PN)
with duplicated Tone-Clock circuit packs:
Switch to the standby Tone-Clock in this PN. If the suspect Tone-Clock is defective, the
link(s) should be restored at this point. (Switching back to the defective Tone-Clock
should take the same link(s) out of service.) This Tone-Clock is defective and should
be replaced as soon as possible. If switching Tone-Clocks does not bring up the PN,
then this Tone-Clock is not the source of the problem. Be sure to switch back to the
original Tone-Clock.
! CAUTION:
a defective Tone-Clock circuit pack is left as the standby Tone-Clock, then a
scheduled Tone-Clock switch will cause the same link(s) go out of service again.
b. When the suspect Tone-Clock resides in an out-of-service PN:
Replace the active Tone-Clock circuit pack in this PN. In a PN with duplicated
Tone-Clock circuit packs, the active Tone-Clock’s amber LED is flashing. If both amber
LEDs are flashing, the active Tone-Clock’s LED is blinking slower.
! CAUTION:
a defective Tone-Clock circuit pack is left as the standby Tone-Clock, then a
scheduled Tone-Clock switch will cause the same PN to go out of service again.
If replacing this circuit pack restores the link(s), then the circuit pack should be
replaced as soon as possible. If not, then it was not the source of the problem.
Issue 5 May 2009 439