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 orde r presented in Table 3-66 when inspecting the
errors in the system. By clearing error c odes associated with the Expansion
InterfaceTest, for example, you may also clear errors gene rated from other tests
in the testing sequenc e.
NOTE:
To get a better indication of a prob lem’s location, test both ATM-EI circuit
packs on the associated fiber link, whether the circ uit packs are both
ATM-EI circuit packs or not.
Expansion Interface 2-way Transmission Test (#241)
This test is non-destructive and ap plies to all ATM-EIs, both active and standb y. It
is run as part of craft short and long testing, p eriodic, sched uled, initialization,
and error analysis testing. The test sets up a connection b etween a Tone/Clock in
one cabinet and a Tone Detector in a separate cab inet and transmits a dig ital test
count between the port n etworks. The ATM-EIs used to set up this connection are
chosen by maintenance, not c all processing. After the connection is chec ked for
dial-tone, the connection i s torn down and re-establi shed 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/ND1
1. D = Destructive, ND = Non-destruc tive
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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