Location of CIDS, Director - Avionics Compartment Figure 004
R  EFF : CES  ALL  25-63-00 Page 6 May 01/04 

R  **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
 3. System Description
__________________
 A. Evacuation Signaling Components - Cockpit
 (Ref. Fig. 001)

 (1) The evacuation signaling components and signal sources installed on the overhead panel in the cockpit include:
 -
a warning horn 5WP on panel 48VU,

 -
a COMMAND pushbutton switch 3WP on panel 21VU, with 'EVAC' and 'ON' indicator lights included in the switch unit,

 -
a CAPT & PURS and CAPT, two-position selector switch 2WP, installed on panel 21VU,

 -
a HORN SHUT OFF pushbutton switch 7WP on panel 21VU.

 B. Evacuation Signaling Components - FWD Utility Area
 (Ref. Fig. 002)

 (1)
 The evacuation signaling components, interfaces and signal sources installed in the FWD utility area include:

 -
a COMD pushbutton switch with an internal indicator light,

 -
a RESET pushbutton switch,

 -
an EVAC indicator light is installed on the FWD ATTENDANT panel,

 -
an EVAC ALERT indicator light (optional) is installed on the standard AREA CALL panel.

 (2)
 The components of the Cabin Intercommunication Data System (CIDS) (Ref. 23-73-00) installed in the FWD utility area, that interface with the evacuation signaling system include:

 -Decoder/Encoder Units (DEU), types A and B located in the overhead compartment. The type A DEU has two amplifiers that function independently,
 -a Programming and Test Panel (PTP) which contains a Cabin Assignment Module (CAM), installed adjacent to the FWD ATTENDANT panel (behind an access cover), has the cabin configuration,
 -cabin loudspeakers.
R  EFF : 001-049, 051-099, 101-149, 151-199, 25-63-00Page 7 201-299, 301-399, Aug 01/05
 CES  EFF : ALL

 C. Evacuation Signaling Components - AFT Utility Area (Ref. Fig. 003)
 (1) The evacuation signaling components, interfaces and signal sources installed in the AFT utility area include: - a TONE OFF pushbutton switch and EVAC indicator light installed on the left AFT ATTENDANT panel, - COMD and RESET pushbutton switches, EVAC and COMD indicator lights (optional) on the left and right AFT ATTENDANT panels, - EVAC ALERT indicator lights (optional) on the standard AREA CALL panels.
 (2) The components of the CIDS (Ref. 23-73-00) installed in the AFT utility area that interface with the evacuation signaling system include: - Decoder/Encoder Units type DEU A and DEU B, located in the overhead compartment, - cabin loudspeakers.
 D. CIDS (Ref. 23-73-00) Components - Avionics Compartment (Ref. Fig. 004)
 (1) The CIDS components that interface with the evacuation signaling system installed in the avionics compartment include: - two CIDS directors. No. 1 (Active) is installed on panel 87VU and No. 2 (Hot-standby) is installed on panel 88VU in equipment rack 137MCU. Each director contains an Onboard Reprogrammable-Memory (OBRM). 
R  **ON A/C 401-499, 
R R  3. System Description__________________ 
R R R  A. Evacuation Signaling Components - Cockpit (Ref. Fig. 001) 
R R R R R R R R  (1) The evacuation signaling components and signal sources installed on the overhead panel in the cockpit include: - A warning horn 5WP on panel 48VU. - A COMMAND pushbutton switch 3WP on panel 21VU, with 'EVAC' and 'ON' indicator lights included in the switch unit. - A CAPT & PURS and CAPT, two-position selector switch 2WP, installed on panel 21VU. - A HORN SHUT OFF pushbutton switch 7WP on panel 21VU.

25-63-00Page 8
Aug 01/05

R 
R  B. Evacuation Signaling Components - FWD Utility Area 
R  (Ref. Fig. 002A) 
R 
R  (1) The evacuation signaling components, interfaces and signal sources 
R  include: 
R  (a) On the Flight Attendant Panel (FAP) 120RH: 
R  - An EVAC CMD button and an EVAC RESET button. They each have an 
R  internal indicator light, and are on the hardkey panel. 
R  (b) In the FWD utility area, 
R  - On the Additional Attendant Panel (AAP), an EVAC button and an 
R  EVAC RESET button. They each have an internal indicator light. 
R  - On the Attendant Indication Panel (AIP), an EVACUATION ALERT 
R  message is shown with an indicator light. 
R  - On the Area Call Panel (ACP), an EVAC ALERT indicator light is 
R  installed. 
　
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