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EXP-INTF (Expansion Interface Circuit Pack)
Issue 1 June 2005 1219
Expansion Interface Reset Test (#336)
This test is destructive.
This test is potentially very destructive and requires the EI circuit pack to be busied out prior to
execution of this test.
The Expansion Interface Reset test, which is not part of either the Short or the Long test
sequences test, is executed via reset board location where location is the location of the
EI circuit pack to be reset.
If the system does not have duplicated PNC, and is a Direct Connect system, and one of the EI
circuit packs must be reset, the action of busying out the desired EI circuit pack will deny calls to
the PN until the EI circuit pack is released from the busyout state. If the EI circuit pack is part of
a PN-to-PN link, new connections to the PN will be denied. If the EI circuit pack is part of a
PN-to-PN link, calls between the two PNs will be denied.
In a non-duplicated PNC system with a Center Stage Switch, if the EI circuit pack in the PN is
busied out, new service to that PN only will be denied. However, if the EI circuit pack resides in
the PN, new service to every PN will be denied until the EI circuit pack is released from the
busyout state.
If the system does not have duplicated PNC, the reset of any EI is allowed, but it will result in
the resetting of every PN board and loss of service to the PN(s) for a few minutes.
If the system does have duplicated PNC, and the EI circuit pack to be reset is part of the active
PNC, the system will not allow the busyout and the system technician will be required to
interchange the PNCs via reset pnc interchange. After executing the PNC interchange, it
will be possible to busyout and then reset the original EI circuit pack.
If the PN’s Maintenance (MAINT) circuit pack determines that the EI (EXP-INTF) circuit pack is
cycling between sane and insane several times within several minutes, MAINT may inhibit
operation of the EXP-INTF by holding the EI circuit pack in a reset state. This condition may
result in an unsuccessful reset of the EI circuit pack.
If the reset command returns “PN is unavailable,” execute the following steps:
1. Use change circuit-pack P (PN’s number).
2. For the EI circuit pack you wish to reset, add an entry to the Circuit Pack screen for the
TN570 EI circuit pack. Be sure to enter the appropriate carrier and slot.
3. Enter the screen.
4. Enter busyout board location.
5. Repeat reset board.