PDMODULE, TDMODULE (Data Module)
Issue 4 May 2002
10-1201555-233-123
1074 FAIL Internal System Error.
1. Make sure that the data equipment connected to the data
module is powered.
2. For an (M)PDM, verify that the Data Terminal “Ready” LED
is ON, or for an (M)TDM, verify that the Data Set Ready
LED is ON. If it is not on, check the cable from the data
equipment to the data module.
1075 FAIL Unknown message received during test.
1. Attempt the test again.
2. If the same error occurs, test the Network Control Data
Channel using the test data-module command and a
known working data module.
3. Replace the Digital Line circuit pack and repeat the test.
4. If the test continues to fail, escalate the problem.
2040 FAIL Internal System Error.
2095 FAIL Internal System Error.
1. Repeat the test.
PASS Data Module Loop Around Test passed. This digital port circuit
pack is functioning properly.
1. If problems persist, investigate by using other port tests and
by examining the data module options, wiring, and
connections.
Table 10-448. TEST #175 Data Module Internal Loop Around Test — Continued
Error
Code
Tes t
Result Description/Recommendation
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