DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126 Issue 4
June 1999
Maintenance Object Repair Procedures
9-791EXP-INTF (Expansion Interface Circuit Pack)
9
Notes:
a. This flashing state corresponds to error codes 769 and 770 from the
Hardware Error Log and indicates a failure of Test #238. These error codes
will usually be accomp anied by error cod e 1281 (no Expansion Interface
or Switch Node Interface d etected on opp osite end of fiber). This
condition may be c aused by the absenc e of the neighbor Expansio n
Interface or Switch Node Interfac e circuit pac k, a broken or missing fib er,
or a missing lightwave transc eiver on either endpoint (Exp ansion Interface
or Switch Node Interface circ uit pack).
b. This flashing state correspond s to error code 1281 from the Hard ware
Error Log and indicates a failure of Test #237. This condition is usually d ue
to the failure of this Expansion Interface circ uit pack or a failed Exp ansion
Interface or Switch Node Interfac e circuit pac k neighbor.
c. This is the normal state for an Active EPN Expansion Interface circ uit pack
that is also the bus master (Expansion Archang el) in the EPN.
d. This is the normal state for an Active Expansion Interfac e circuit pac k that
is not the bus master (Expansion Archangel) for an EPN. This applies only
in the Direct Connect Configurati on where the Expansion Interface circ uit
pack in an EPN is connected via a fiber link to an Expansion Interfac e
circuit pack in the other EPN. This state also applies for an active
Expansion Interface circu it pack located in the PPN.
e. This is the normal state for a Standby Expansion Interfac e circuit pac k in
both the PPN and EPNs.
NOTE:
In an EPN the TN775 EPN Maintenance (MAINT) circuit pack monitors the
sanity of the Expansion Interface circ uit pack. If the Expansion Inter face
circuit pack should cycle b etween sane and insane several times, the
Maintenance circuit p ack will hold the Expansion Inter face circuit p ack
reset. If a new Expansion Interface circ uit pack is installed in the EPN, and
the red LED remains lit, the EPN Maintenance circuit pac k should be
removed because it may b e holding the new Expansion Inter face circuit
Table 9-305. Expansion Interface Circuit Pack Yellow LED Flashing States
Condition LED On LED Off
Fiber Out-of-Frame (a) 0.1 second 0.1 second
In frame-No Neighbor (b ) 0.5 second 0.5 second
Expansion Interface Active (c) 2 second 0.2 second
Expansion Interface Active (d) solid on never off
Expansion Interface Standby (e) never on solid off
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