(2)
 Architecture
 The FAP has the following modules:

 -Display unit,
 -Sub panel.

 (3)
 Functions

 (a) Display unit
 The display unit has these parts:

 -Ethernet bus interface This interface buffers all incoming information and transfers selected data to the processing module. It also receives data from the processing module and transmits this information on the ethernet bus.
 -Processing module This module decodes the incoming data packets and activates the graphic module, which is part of the processing module. It also activates the respective hardkeys of the sub panel. Inputs from the touch screen or the sub panel are coded into data packets and sent to the ethernet bus interface. In case of emergency mode the processing module switches the FAP to minimum power consumption. The FAP BITE function is incorporated into the processing module.
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 -Touch screen panel

R This panel indicates all information. It is used to select R functions (e.g. cabin illumination) and for the cabin programming.
 -System interface This unit gives an interface to certain connected cabin systems.
 -Power supply circuits These supply all necessary power to the FAP circuits.
 (b) Sub panel The sub panel contains hardkeys and some interfaces (e.g. USB).
 H. On Board Replaceable Module (OBRM) This module is the storage device for system software (e.g. director S/W, FAP S/W). It is installed in the sub panel of the FAP.
 J. Cabin Assignment Module (CAM) In this module the CIDS configuration data base is stored. It is installed in the sub panel of the FAP and includes the cabin definition,
 e.g. for:
 -Cabin zoning,
 -Seat relation to loudspeakers and passenger lighted signs,
 -Chime sequences,
 -Audio levels.
 K. Additional Attendant Panel (AAP)
 **ON A/C 301-399,
 (Ref. Fig. 022)

R **ON A/C 106-149, 301-399, 401-499,
 (1)
 General The AAP enables the attendants to control certain cabin systems.

 (2)
 Architecture
 The AAP has these modules and circuits:

 -RS232 data bus receiver and transmitter,
 -Processing module,
 -Power supply circuits,
 -Output circuitry.
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 Additional Attendant Panel
 Figure 022

R 1EFF : 301-399, 1 23-73-00Page 70 1 1 Config-2 Aug 01/05 1 1 1CES 1 (3) Functions

 (a)
 RS232 data bus receiver and transmitter The RS232 data bus receiver and transmitter receives data from the DEU type B and sends it to the processing module. It also receives data from the processing module and transmits this information to the DEU type B.

 (b)
 Processing module This module carries out all internal operations of the AAP. It connects the membrane switches and indicators to the RS232 data bus receiver and transmitter. The AAP BITE function is incorporated into the processing module.

 (c)
 Power supply circuits This unit provides all necessary power to the AAP circuits.

 (d)
 Output circuitry All outputs of the AAP are short-circuit protected.

 **ON A/C 301-399,
 L. EVAC Indication and EVAC/SMOKE RESET Panel
 (1) Description
 (Ref. Fig. 023)

 (a)
 General The EVAC Indication and EVAC/SMOKE RESET Panel (2064VU) is installed at the MID RH and EXIT RH cabin attendant station.

 (b)
 Function The EVAC Indication and EVAC/SMOKE RESET Panel performs these functions:

 -Indication of the EVAC alert to the attendant,
 -
Reset of the EVAC signalling-tone in the related attendant area,

 -
Reset of the EVACUATION ALERT message and indicator light on the AIP in the related attendant area,

 -
Reset of the lavatory-smoke warning-tone in the cabin,

 -
Reset of the lavatory-smoke call light indication of all lavatories,

 -
Reset of the SMOKE LAV message and indicator light of all AIPs,

 -
Reset of the lavatory-smoke indicator light of all ACPs.

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 EVAC Indication and EVAC/SMOKE RESET Panel
 Figure 023

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 (c) Architecture The EVAC Indication and EVAC/SMOKE RESET Panel comprises:
 -
The EVAC-alert Indicator-light,
　
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