OBRM - Download Procedure

TASK 23-73-00-869-001-A
OBRM - Download Procedure

1. Reason for the Job
Loading or reloading of software to the CIDS director.
2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
TASK 23-73-00-861-001-A	Energize the Cabin Intercommunication Data System (CIDS)
TASK 24-41-00-861-002-A	Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01	Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-861-002-A-02	Energize the Aircraft Electrical Circuits from Engine 1(2)
TASK 24-41-00-862-002-A	De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01	De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 24-41-00-862-002-A-02	De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
TASK 26-10-00-710-801-A	Smoke Detection Function Cabin Assignment Module (SDF CAM) Layout Loading
OBRM - Software Loading ** ON A/C NOT FOR ALL
OBRM - Software Loading ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 23-73-00-860-164-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
(2) Make sure that the correct OBRM is installed in the FAP.
(3) Make sure that the Cabin Intercommunication Data System (CIDS) is energized
(Ref. AMM TASK 23-73-00-861-001).

Subtask 23-73-00-865-185-A ** ON A/C NOT FOR ALL

B. Make sure that this(these) circuit breaker(s) is(are) closed:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	ENGINE/2/FADEC A/AND EIU 2	2KS2	A05
49VU	ENGINE/1/FADEC A/AND EIU 1	2KS1	A04
49VU	L/G/LGCIU/SYS1/NORM	1GA	C09
49VU	AIR COND/CAB/PRESS/CTL1	1HL	D09
** ON A/C NOT FOR ALL
121VU	ENGINE/ENG2/FADEC B	4KS2	Q40
** ON A/C NOT FOR ALL
121VU	ENGINE/ENG1/FADEC B/AND EIU 1	4KS1	R41
** ON A/C NOT FOR ALL
121VU	HYDRAULIC/LGCIU/SYS2	2GA	Q35
** ON A/C NOT FOR ALL
121VU	ENGINE/ENG2/FADEC B/AND EIU2	4KS2	Q40
** ON A/C NOT FOR ALL
121VU	ENGINE/ENG2/FADEC B/AND EIU2	4KS2	R41
121VU	ENGINE/ENG1/FADEC B/AND EIU 1	4KS1	R40
** ON A/C NOT FOR ALL
122VU	AIR COND/CAB PRESS/CTL/2	2HL	Y22

4. Procedure
Subtask 23-73-00-970-050-A ** ON A/C NOT FOR ALL

A. Loading of the OBRM-software

OBRM - Software Loading ** ON A/C NOT FOR ALL

(1) On the Flight Attendant Panel (FAP) 120RH, push the SW LOAD key.

the SOFTWARE LOADING page with an activated message box 'WAIT UNTIL ALL CIDS COMPONENTS HAVE SENT THEIR CONFIGURATION' shows.
after some time the message box disappears.

NOTE: Make sure that data is shown in the IN SLOT column. If dashes are shown, wait for up to 5 minutes until data replaces the dashes.

(2) On the SOFTWARE LOADING page, push the LOAD SW key.

the ENTER ACCESS CODE window shows.
enter the access code '813' and push the ENTER key.
the ENTER ACCESS CODE window disappears and the message box 'SOFTWARE LOADING MAY LAST XX MINUTES' and additional information show.

NOTE: Ignore the message 'CHANGE CAM NOW IF NECESSARY'.

(3) On the message box, push the OK key to start the software loading procedure.

a message box 'WAIT UNTIL SOFTWARE LOADING IS COMPLETED' and additional information show.
a loading bar shows the progress of the loading procedure.
after the loading is completed the message box disappears and the system does an auto restart.
after the reboot, a message box 'SOFTWARE LOADING COMPLETED SUCCESSFULLY' shows.

(4) On the message box, push the OK key.

the message box disappears.
the SOFTWARE LOADING page shows.

NOTE: Make sure that the data in all fields of the SOFTWARE LOADING page are shown in green color.

(5) On the FAP, push the CABIN STATUS key.

the CABIN STATUS page shows.

Subtask 23-73-00-860-219-A ** ON A/C NOT FOR ALL

B. Load the SMOKE LAYOUT into SDF1 and SDF2 (Ref. AMM TASK 26-10-00-710-801).

5. Close-up
Subtask 23-73-00-869-082-A ** ON A/C NOT FOR ALL

A. Put the aircraft back to its initial configuration.
(1) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).

[Rev.10 from 2021] 2026.03.31 23:16:42 UTC