-
Passenger call light,

 **ON A/C 301-399,
 B. System Architecture
 The CIDS consists of these components:

 -Director,
 -
Decoder/Encoder Unit (DEU) type A,

 -
Decoder/Encoder Unit (DEU) type B,

 -Passenger Interface and Supply Adapter (PISA),
 -Stand Alone Passenger Interface and Supply Adapter (StA PISA) (Ref. 33-27-00),
 -Flight Attendant Panel (FAP),
 -Cabin Assignment Module (CAM),
 -On Board Replaceable Module (OBRM),
 -Additional Attendant Panel (AAP),
 -Attendant Indication Panel (AIP),
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R  - Area Call Panel (ACP), - Handsets, - Loudspeaker, - Passenger call/reset pushbutton, - Passenger call light, - EVAC/SMOKE reset panel, 
R  **ON A/C 106-149, 301-399, 401-499,
R R R  - NS, FSB and RTS signs. All components of the CIDS are connected to two identical directors. The connections are realized by data bus interfaces, audio interfaces and discrete interfaces. Furthermore, CIDS has interfaces to other systems. The interfaces to these systems are realized as described above. The systems are connected to the CIDS components. 
R  **ON A/C 106-149, 301-399,
 (1) CIDS directors 
R  **ON A/C 106-149, 
R  (Ref. Fig. 012) 
R  **ON A/C 301-399, 
R  (Ref. Fig. 012A) 
R  **ON A/C 106-149, 301-399, 
R  (Ref. Fig. 013) The two directors are the central control components of the CIDS. One director is in active mode, the other one is in hot standby mode.
 (a) The CIDS directors have a data bus interface to the: - DEU type A, - DEU type B, - Flight Attendant Panel (FAP), - System Data Acquisition Concentrator 1+2 (SDAC), - Flight Warning Computer 1+2 (FWC), 

R 1EFF : 106-149, 301-399, 401-499, 1 23-73-00Page 27 1 1 Config-2 Aug 01/05 1 1 1CES 1

 CIDS Director Interfaces - Block Diagram (Sheet 1)
 Figure 012

R 1EFF : 106-149, 1 23-73-00Page 28 1 1 Config-2 Aug 01/05 1 1 1CES 1

 CIDS Director Interfaces - Block Diagram (Sheet 1)
 Figure 012A

R 1EFF : 301-399, 1 23-73-00Page 29 1 1 Config-2 Aug 01/05 1 1 1CES 1R CIDS Director Interfaces - Block Diagram (Sheet 1) R Figure 012B

R 1EFF : 401-499, 1 23-73-00Page 30 1 1 Config-2 Aug 01/05 1 1 1CES 1

 CIDS Director Interfaces - Block Diagram (Sheet 2)
 Figure 013

R 1EFF : 106-149, 301-399, 401-499, 1 23-73-00Page 31 1 1 Config-2 Aug 01/05 1 1 1CES 1

 - Centralized Fault Display System (CFDS), 
R  - Air Conditioning Zone Controller (ZC). 
R  **ON A/C 401-499, 
R  (1) CIDS directors 
R  (Ref. Fig. 012B, 013) 
R  The two directors are the central control components of the CIDS. One 
R  director is in active mode, the other one is in hot standby mode. 
R  (a) The CIDS directors have a data bus interface to the: 
R  - DEU type A, 
R  - DEU type B, 
R  - Flight Attendant Panel (FAP), 
R  - System Data Acquisition Concentrator 1+2 (SDAC), 
R  - Flight Warning Computer 1+2 (FWC), 
R  - Centralized Fault Display System (CFDS), 
R  - Air Conditioning System Controller (ACSC). 
R  **ON A/C 301-399,
 - In Flight Entertainment System (IFE), 
R  - Prerecorded Announcement & Boarding Music (PRAM). 
R  **ON A/C 106-149, 401-499,
 (b) The CIDS directors have a discrete interface to the:
 - Slat Flap Control Computer 1+2 (SFCC),
 - Landing Gear Control and Interface Unit 1+2 (LGCIU),
 - Cabin Pressure Controller 1+2 (CPC), 
R  - Cabin pressure relay,
 - Indicator Light Control Box (ILCB), 
R  - Call panel, 
R  - Service interphone override switch, 
R  - Exit signs relay, 
R  - Cockpit door switch,
 - System Data Acquisition Concentrator 1+2 (SDAC),
 - Flight Warning Computer 1+2 (FWC), 
R  - Top lines cut off relay,
 - Engine Interface Unit (EIU), 
R  - Motor start relay vacuum generator, 

R 1EFF : 106-149, 301-399, 401-499, 1 23-73-00Page 32 1 1 Config-2 Aug 01/05 1 1 1CES 1

 **ON A/C 301-399,
R R R R R R R R  (b) The CIDS directors have a discrete interface to the: - Slat Flap Control Computer 1+2 (SFCC), - Landing Gear Control and Interface Unit 1+2 (LGCIU), - Cabin Pressure Controller 1+2 (CPC), - Cabin pressure relay, - Indicator Light Control Box (ILCB), - Call panel, - Service interphone override switch, - Exit signs relay, - Cockpit door switch, - System Data Acquisition Concentrator 1+2 (SDAC), - Flight Warning Computer 1+2 (FWC), - Top lines cut off relay, - Engine Interface Unit (EIU), - Motor start relay vacuum generator, - In Flight Entertainment System (IFE), 
　
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