Avaya S8700 Maintenance Manual page 185

Isolating and Repairing Packet-Bus Faults
3. Determine whether the packet-bus fault is still present. If so, and if there
are shorts on the packet bus, perform
Reinserting Port Circuit Packs
Reinserting EPN's Control Circuit Packs
carriers connected to the "shortened" packet bus.
4. If the packet-bus fault is not present, extend the packet bus to another
carrier, and repeat the procedure in the previous step. When a carrier that
causes the fault to recur is added, and if there are shorts, perform
Procedure 2: Removing and Reinserting Port Circuit Packs
Procedure 3: Removing and Reinserting EPN's Control Circuit Packs
only the circuit packs in that carrier.
5. If the packet-bus fault recurs as the packet bus is extended, and if there are
no shorts, and Procedures 2 and 3 do not resolve the problem, the added
carrier(s) that caused the problem to recur are defective and must be
replaced.
555-233-143
Procedure 2: Removing and
and/or Procedure 3: Removing and
for only the circuit packs in
Issue 1 May 2002
and/or
for
4-111