DOC AIRBUS | TSM A320FLoss of the ARINC 629 link from the FO DU's to the DMC2
TASK 31-63-82-810-840-A
Loss of the ARINC 629 link from the FO DU's to the DMC2
1. Possible Causes
2. Job Set-up Information
A. Referenced Information
3. Fault Confirmation
Subtask 31-63-82-860-096-A ** ON A/C NOT FOR ALL 4. Fault Isolation
Subtask 31-63-82-810-118-A ** ON A/C NOT FOR ALL
[Rev.8 from Aug 2018]
2026.04.04 04:31:16 UTC
Loss of the ARINC 629 link from the FO DU's to the DMC2
1. Possible Causes
2. Job Set-up Information
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| AMM 31-60-00-860-001 | EIS Start Procedure |
| AMM 31-60-00-860-002 | EIS Stop Procedure |
| ASM 316201 | |
| AMM 31-63-34-000-001 | Removal of the DMC |
| AMM 31-63-34-400-001 | Installation of the DMC |
Subtask 31-63-82-860-096-A ** ON A/C NOT FOR ALL 4. Fault Isolation
Subtask 31-63-82-810-118-A ** ON A/C NOT FOR ALL
A. Make sure that:
(2) If the fault continues:
Subtask 31-63-82-860-097-A ** ON A/C NOT FOR ALL - the INVALID DATA message is shown on the F/O PFD DU and on the F/O ND DU
- the ECAM warning EIS DMC 2 FAULT is shown on the upper ECAM display
(2) If the fault continues:
- Make sure that there is 115VAC on the pin AC-2 of the DMC2(1WT2)
- check and repair the wiring from the DMC2(1WT2) pin AC-2 to the EIS DMC1 SPLY (10WT2)- circuit breaker
- replace the C/B-EIS/DMC2/SPLY [10WT2] ASM 316201
- Make sure that there is a ground signal at pin AC-7 of the DMC2(1WT2)
- repair the wiring from the DMC2 (1WT2) pin AC-7 to the ground terminal ASM 316201.