User manual

DEFINITY Enterprise Communications Server Release 6
Maintenance for R6vs/si
555-230-127
Issue 1
August 1997
Maintenance Object Repair Procedures
Page 10-630EXP-INTF (Expansion Interface Circuit Pack)
10
PASS
NOTE:
If the Expansion Interface is a TN570 and the system does not have
the Packet Bus enabled field set to yes on the Maintenance-related
system parameters form, then this test does not execute the packet
bus portion of the loop around.
When this test (#242) and the Expansion Interface Local Loop Around Test
#240 pass, this indicates that the Expansion Interface circuit pack is
functioning properly, but it does not verify that the optical portion of the
lightwave transceiver is functioning properly. Remove the Expansion
Interface circuit pack from the busyout state using the release board
PCSS command.
1. If duplicate Expansion Interface Links are available, issue the test
board PCSS command on the Standby Expansion Interface circuit
packs on both ends of fiber. If this test passes from both sides, but
other tests fail, such as Test #241, this condition indicates either a
faulty lightwave transceiver or a faulty fiber cable. To determine if
either a lightwave transceiver or the fiber itself has failed, execute the
Expansion Interface Manual Loop Back Procedure described in the
section preceding the "Hardware Error Log Entries and Test to Clear
Values" table for this MO.
NOTE:
This test can only be run from both Expansion Interface circuit packs
if they are the Standby pair, and if the Active pair is working
properly.
2. If this Expansion Interface circuit pack is failing other tests, the
Expansion Interface Manual Loop Back Test should be executed.
If problems still exist after the Expansion Interface Manual
Loop Back Procedure indicates that both Expansion Interface
circuit packs and both lightwave transceivers are healthy,
manually check out the building fiber. Verify that each optical
fiber is connected to a transmitter at one end and a receiver at
the other.
Table 10-213. TEST #242 Expansion Interface Lightwave
Transceiver Loop Around Test — Continued
Error
Code
Test
Result Description/Recommendation
Continued on next page