A320飞机维护手册 AMM Communications 通讯1(166)

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 D. Audio Output The SEB changes the MM digital audio back to its original analog form. This audio output is transmitted to the passenger headsets through the Passenger Control Units (PCU).
 E. Channels The audio signals in the MM can give a stereophonic channel. One monophonic channel from the Audio Reproducer (A/R) is programmed as the left channel; the other monophonic channel is programmed as the right channel. Two monophonic channels give the effect of one stereophonic channel. Four channels from the A/R can be used to provide boarding music over the loudspeakers in the cabin and in the lavatories.
 F. Boarding Music Four channel nummbers can be used to provide the boarding music. The flight attendants control the boarding music on the Flight Attendant Panel (FAP) 120RH.
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R  G. Passenger Address Audio (Ref. Fig. 005B) Three Passenger Address (PA) audio-inputs control all the IFE channels in each applicable aircraft zone. The CIDS controls the IFE mode and permits the use of the PA in each zone of the aircraft. The aircraft seat layout will have an effect on this system.
 H. Cabin Intercommunication Data System (CIDS) Interface (Ref. Fig. 002,005) The ARINC 429 input data bus receives data from the CIDS directors. The ARINC 429 output data bus also sends data to the CIDS directors. In the Fig. 002 the CIDS has different functional interfaces. These are : - Power ON/OFF, - Built-In Test Equipment (BITE) information initialization and data transfer, - PA announcement control and seat layout data transfer to the IFE.
 J. ARINC 429 Output Data Port The IFE output data has a BITE fault data. The CIDS directors send this data to the Center Fault Display System (CFDS).
 K. ARINC 429 Input Data Port This port receives the CIDS data for the electrical location of seats (PA override and movie/video audio). All the necessary data is stored in the Cabin Assignment Module (CAM).
 L. IFE Data Lines (Ref. Fig. 007A) The MM controls two columns of seats on the aircraft. There are two data busses in each column. When one is used for the multiplexed digital audio, the other is used for service data. 
R  **ON A/C 051-099, 106-149, 201-299, 301-399,
 4. Power Supply____________ 
R  **ON A/C 051-099, 
R R R  (Ref. Fig. 008) 115 V AC is supplied to the PES from the normal busbar 210 XPA through the circuit breaker 21MK. 

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R  Power Supply 
R  Figure 008 
R 1EFF :  051-099,  1  23-33-00 Page 30 
1  1  May 01/05
 1  1
 1CES  1

 

R **ON A/C 106-149, 211-299,

 (Ref. Fig. 008A)
 The busbar 220XP-A supplies 115VAC to the PES MUSIC through the circuit
 breaker 21MK. The busbar 220XP-B supplies 115VAC to the PES MUSIC through
 the circuit breaker 23MK and the relay 800MK. The busbar 220XP-C supplies
 115VAC to the PES MUSIC through the circuit breaker 24MK and the relay
 800MK. The Audio Reproducer (A/R) 10MK and the Main Multiplexer (MM) 8MK are
 supplied through the circuit breaker 21MK. This line also operates the relay
 800MK.
 The WDB's 50MK and SEB's 100MK on the LH passenger compartment side are
 supplied through the circuit breaker 23MK. The WDB's and SEB's on the RH
 passenger compartment side are supplied through the circuit breaker 24MK. 
R  **ON A/C 201-210, 
R  (Ref. Fig. 008B) 
R  The busbar 210XP-A supplies 115VAC to the PES MUSIC through the circuit 
R  breaker 21MK. The busbar 210XP-B supplies 115VAC to the PES MUSIC through 
R  the circuit breaker 23MK and the relay 800MK. The busbar 210XP-C supplies 
R  115VAC to the PES MUSIC through the circuit breaker 24MK and the relay 
R  800MK. The Compact DISK (CD) reproducer and the Main Multiplexer (MM) are 
R  supplied through the circuit breaker 21MK. This line also operates the relay 
R  800MK. 
R  The WDB's and SEB's on the LH passenger compartment side are supplied 
R  through the circuit breaker 23MK. The WDB's and SEB's on the RH passenger 
R  compartment side are supplied through the circuit breaker 24MK.
 **ON A/C 301-399, 
R  (Ref. Fig. 008C)
 The busbar 220XP-A supplies 115VAC to the PES MUSIC through the circuit
 breaker 21MK. The busbar 220XP-B supplies 115VAC to the PES MUSIC through
 the circuit breakers 22MK, 23MK and the relay 800MK. The busbar 220XP-C
 supplies 115VAC to the PES MUSIC through the circuit breakers 24MK, 25MK and
　
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