Maintenance-Object Repair Procedures
555-233-143
8-204 Issue 1 May 2002
x. Error Type 3999 — The circuit pack sent a large number of control
channel messages to the switch within a short period of time.
System Technician-Demanded Tests:
Descriptions and Error Codes
Always investigate tests in the order presented in Table 8-84 when inspecting the
errors in the system. For example, by clearing error codes associated with the
Expansion Interface 2-Way Transmission test (#241), you can 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.
If Then
Error Type 1538 is also
present
Circuit pack is taken out of service
Error Type 1538 is absent Circuit pack is not taken out of service, but has
generated 50% of the messages necessary to be
considered hyperactive.
This can be normal during heavy traffic.
If the error is logged during light traffic, it can
indicate a problem with the circuit pack or the
equipment attached to it.
Table 8-84. 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 = Nondestructive
Expansion Interface 2-Way 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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