DOC AIRBUS | AMM A320FCABIN AND SERVICE INTERPHONE - DESCRIPTION AND OPERATION
** ON A/C NOT FOR ALL
1. General
The service interphone system provides the telephone communication on the ground between the flight crew, the cabin crew and the ground service personnel.
Eight service interphone jacks are installed at different locations on the aircraft. The service personnel use them to speak to each other, the cockpit and the attendant stations through handsets.
The service interphone system supplies the telephone connection on the ground between the flight crew, the cabin crew and the ground service personnel.
Six maintenance interphone jacks are installed at different locations on the aircraft. The service personnel use them to speak, the cockpit and the attendant stations through handsets.
** ON A/C NOT FOR ALL The service interphone system provides the telephone communication on the ground between the flight crew, the cabin crew and the ground service personnel.
Eight service interphone jacks are installed at different locations on the aircraft. The service personnel use them to speak to each other, the cockpit and the attendant stations through handsets.
The service interphone system supplies the telephone connection on the ground between the flight crew, the cabin crew and the ground service personnel.
Six maintenance interphone jacks are installed at different locations on the aircraft. The service personnel use them to speak, the cockpit and the attendant stations through handsets.
2. Component Location
Service Interphone System - Component Location ** ON A/C NOT FOR ALL
Service Interphone System - Component Location ** ON A/C NOT FOR ALL
** ON A/C NOT FOR ALL Service Interphone System - Component Location ** ON A/C NOT FOR ALL Service Interphone System - Component Location ** ON A/C NOT FOR ALL | FIN | FUNCTIONAL DESIGNATION | PANEL | ZONE | ACCESS DOOR | ATA REF |
|---|---|---|---|---|---|
| ** ON A/C ALL | |||||
| 1RJ | JACK-MAINTENANCE INTERPHONE, FWD AVIONICS COMPT | 121 | 23-44-00 | ||
| 2RJ | JACK-MAINTENANCE INTERPHONE, R AVIONICS COMPT | 126 | 23-44-00 | ||
| 3RJ | JACK-MAINTENANCE INTERPHONE, AFT AVIONICS COMPT | 63VU | 128 | 23-44-00 | |
| 11RJ | JACK-MAINTENANCE INTERPHONE | 2025VU | 141 | 23-44-00 | |
| 13RJ | JACK-MAINTENANCE INTERPHONE | 312 | 23-44-00 | ||
| 14RJ | JACK-MAINTENANCE INTERPHONE | 312 | 23-44-00 | ||
| 15RJ | P/BSW-SERVICE INTERPHONE OVRD | 50VU | 212 | 23-44-00 | |
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| 4000RJ1 | JACK-MAINTENANCE INTERPHONE ENGINE 1 | 410 | 23-44-41 | ||
| 4000RJ2 | JACK-MAINTENANCE INTERPHONE ENGINE 2 | 420 | 23-44-41 | ||
| ** ON A/C NOT FOR ALL | |||||
| 4RJ1 | ISOLATION UNIT | 126 | 23-44-42 | ||
| 4RJ2 | ISOLATION UNIT | 128 | 23-44-42 | ||
| 4RJ3 | ISOLATION UNIT | 132PW | 132 | 23-44-42 | |
| 4RJ4 | ISOLATION UNIT | 132PW | 138 | 23-44-42 | |
| 4RJ5 | ISOLATION UNIT | 312AR | 312 | 23-44-42 | |
3. Description
The service interphone system has:
If there is a short-circuit condition in a maintenance-interphone jack-socket, the isolation unit will keep the effects of the failure on the service interphone system to a minimum.
The service interphone system has:
If there is a short-circuit condition in a maintenance interphone jack-socket, the isolation unit will keep the effects of the failure on the service interphone system to a minimum.
** ON A/C NOT FOR ALL The service interphone system has:
- Eight maintenance interphone jacks
- A service-interphone OVERRIDE pushbutton-switch, with an integral indicator light.
- The Landing Gear Control and Interface Units (LGCIUs) 5GA1 and 5GA2
- The SVCE INT OVRD pushbutton switch 15RJ
- The annunciator-light test and interface board 1LP
- The CIDS directors 101RH and 102RH.
- Eight maintenance interphone jacks
- Five isolation units
- A service-interphone OVERRIDE pushbutton-switch, with an integral indicator light.
- The Landing Gear Control and Interface Units (LGCIUs) 5GA1 and 5GA2
- The SVCE INT OVRD pushbutton switch 15RJ
- The annunciator-light test and interface board 1LP
- The CIDS directors 101RH and 102RH.
If there is a short-circuit condition in a maintenance-interphone jack-socket, the isolation unit will keep the effects of the failure on the service interphone system to a minimum.
The service interphone system has:
- Six maintenance interphone jacks
- Five isolation units
- A service-interphone OVERRIDE pushbutton-switch, with an integral indicator light.
- The Landing Gear Control and Interface Units (LGCIUs) 5GA1 and 5GA2
- The SVCE INT OVRD pushbutton switch 15RJ
- The annunciator light test and interface board 1LP
- The CIDS directors 101RH and 102RH.
If there is a short-circuit condition in a maintenance interphone jack-socket, the isolation unit will keep the effects of the failure on the service interphone system to a minimum.
4. Operation/Control and Indicating
Service Interphone System - Schematic Diagram ** ON A/C NOT FOR ALL
Service Interphone System - Schematic Diagram ** ON A/C NOT FOR ALL
Service Interphone System - Schematic Diagram ** ON A/C NOT FOR ALL
The service interphone system operates automatically when the aircraft is on the ground (nose landing gear compressed) with/without the external power is available. In this case both LGCIUs give ground signals to the CIDS directors.
When on the MCDU the nose landing gear is in flight simulation or the landing gear is not compressed (flight condition) both LGCIUs give no ground signals to the CIDS directors. The service interphone system operates, when you push the SVCE INT OVRD pushbutton switch 15RJ to the ON position. The integral indicator light in the SVCE INT OVRD pushbutton switch 15RJ comes on.
The system is off when:
Service Interphone System - Schematic Diagram ** ON A/C NOT FOR ALL Service Interphone System - Schematic Diagram ** ON A/C NOT FOR ALL Service Interphone System - Schematic Diagram ** ON A/C NOT FOR ALL When on the MCDU the nose landing gear is in flight simulation or the landing gear is not compressed (flight condition) both LGCIUs give no ground signals to the CIDS directors. The service interphone system operates, when you push the SVCE INT OVRD pushbutton switch 15RJ to the ON position. The integral indicator light in the SVCE INT OVRD pushbutton switch 15RJ comes on.
The system is off when:
- On the MCDU the nose landing gear is in flight simulation or the landing gear is not compressed, and the SVCE INT OVRD pushbutton switch 15RJ is off.
A. Operation from the Cockpit
The acoustic equipment in the cockpit sends the audio signals to the Audio Management Unit (AMU). The AMU sends the audio signals through the audio lines to the CIDS directors.
The active CIDS director sends the audio signals to:
The acoustic equipment in the cockpit sends the audio signals to the Audio Management Unit (AMU). The AMU sends the audio signals through the audio lines to the CIDS directors.
The active CIDS director sends the audio signals to:
- The attendant stations through the mid bus lines
- The maintenance interphone jacks through the audio lines.
B. Operation from the Cabin Attendant Stations
The operation starts when you push the service interphone key on the attendant handset.
The cabin attendant stations send the audio signals through the mid bus lines to the CIDS directors.
The active CIDS director sends the audio signals to:
The operation starts when you push the service interphone key on the attendant handset.
The cabin attendant stations send the audio signals through the mid bus lines to the CIDS directors.
The active CIDS director sends the audio signals to:
- The cockpit acoustic equipment through the audio lines and the AMU
- The maintenance interphone jacks through the audio lines.
C. Operation from a Service Interphone Jack with a connected Boomset
The boomset sends the audio signals through the audio lines to the CIDS directors.
The active CIDS director sends the audio signals to:
The boomset sends the audio signals through the audio lines to the CIDS directors.
The active CIDS director sends the audio signals to:
- The cockpit acoustic equipment through the audio lines and the AMU
- The attendant stations through the mid bus lines
- The maintenance interphone jacks through the audio lines.