User manual

DEFINITY ECS Release 8.2 Maintenance for R8.2csi 555-233-119 Issue 1
April 2000
Maintenance Objects
3-161ATM-EI (Expansion Interface Circuit Pack)
3
System Technician-Demanded Tests: Descriptions
and Error Codes
Always investigate tests in the order presented in Table 3-66 when inspecting the
errors in the system. By clearing error codes associated with the Expansion
InterfaceTest, for example, you may also clear errors generated from other tests
in the testing sequence.
NOTE:
To get a better indication of a problem’s location, test both ATM-EI circuit
packs on the associated fiber link, whether the circuit packs are both
ATM-EI circuit packs or not.
Expansion Interface 2-way Transmission Test
(#241)
This test is non-destructive and applies to all ATM-EIs, both active and standby. It
is run as part of craft short and long testing, periodic, scheduled, initialization,
and error analysis testing. The test sets up a connection between a Tone/Clock in
one cabinet and a Tone Detector in a separate cabinet and transmits a digital test
count between the port networks. The ATM-EIs used to set up this connection are
chosen by maintenance, not call processing. After the connection is checked for
dial-tone, the connection is torn down and re-established in the opposite
direction.
Table 3-66. System Technician-Demanded Tests: ATM-EI
Order of Investigation
Short Test
Sequence
Long Test
Sequence
Reset Board
Sequence D/ND
1
1. D = Destructive, ND = Non-destructive
Expansion Interface 2way-Transmission Test
(#241)
XX ND
ATM Board Framer Looparound Test (#1260) X D
Expansion Interface Lock Query Test (#304) X X ND
ATM Board Error Query Test (#1259) X X ND
ATM Expansion Interface Reset (#1256) X D
ATM board DSP test(#1293) for TN2305 and
TN2306 circuit packs.
XX ND
ATM Cross Talk test(#1298) for TN2305 and
TN2306 circuit packs
XND
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