(11)
The emergency repeat has 16 cycles max.
(12)
The access time is less than 1 seconds.
(13)
A power consumption of 35W maximum with 115VAC / 400 Hz.
(14)
The unit connector is ARINC 600 Size 1.
R 1EFF : 106-149, 151-158, 201-299, 301-399, 1 23-32-00Page 21 1 1 Aug 01/05 1 1 1CES 1 **ON A/C 159-199,
B. Defined System Characteristics
(1)
The frequency range is from 50Hz to 6kHz for the announcement and 50Hz to 13,5kHz for the boarding music.
(2)
The signal-to-noise rate is more than 60 dB.
(3)
The harmonic distortion is less than 3.0 % for messages and less than 1.0% for music.
(4)
The output-levels are 0.775V/600-Ohm.
(5)
The memory capacity is 85M Bytes for ANN and 80M Bytes for BGM.
(6)
The reproduction time is 5 h and 48 min. for ANN and 43 min./channel for BGM.
(7)
The message access time is less than 1 second.
(8)
The number of messages are 500 max.
(9)
The BGM has 4 channels.
(10)
The direct access keys are 5 messages max. including decompression.
(11)
The emergency repeat has 16 cycles max.
(12)
The access time is less than 1 seconds.
(13)
A power dissipation of 13W maximum with 115VAC / 400 Hz.
(14) The unit connector is ARINC 600 Size 1. R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
6. System Operation
________________
1EFF : 001-049, 051-099, 101-149, 151-199, 1 23-32-00Page 22 1201-299, 301-399, 1Aug 01/05 1 1 1CES 1 1EFF : 001-049, 051-099, 101-149, 151-199, 1 23-32-00Page 23 1201-299, 301-399, 1Aug 01/05 1 1 1CES 1 1EFF : 001-049, 051-099, 101-149, 151-199, 1 23-32-00Page 24 1201-299, 301-399, 1Aug 01/05 1 1 1CES 1 1EFF : 001-049, 051-099, 101-105, 151-199, 1 23-32-00Page 25 1201-299, 1Aug 01/05 1 1 1CES 1 1EFF : 001-049, 051-099, 101-149, 151-199, 1 23-32-00Page 26 1201-299, 301-399, 1Aug 01/05 1 1 1CES 1
R **ON A/C 001-049, 051-099, 101-105, 151-199, 201-299,
The Prerecorded Announcement and Boarding Music (PRAM) system is controlled during normal operation from the audio module in the Fwd Attnd panel 120RH. The system initialization is made automatically when the reproducer receives 115 V AC. During the initialization the LED display on the audio module is not shown. The least significant digit LED of the announcer display will show '0' when the initialization is complete. The operation procedures to program and release the announcements are as follows:
A. Control Keys
R **ON A/C 106-149, 301-399,
R R R R R R R R R R R R R R R R R To operate the PRAM through the AUDIO page you must push the AUDIO pushbutton. After you set this function, two different pages can come into view: WAIT UNTIL INITIALIZATION HAS BEEN COMPLETED. - PRAM is in initialization routine wait max. 5 min. NO PRERECORDED AUDIO AVAILABLE CHECK PRAM. - operation not possible (e.g. PRAM is not supplied with power, data bus interrupted). After the initialization the following text strings can be shown: AUTO in the ON ANNOUNCE display, if an automatic announcement was caused. FOUND in the MEMO 1 display, if the announcement was found by the PRAM. MISSING in the MEMO 1 and or MEMO 2 display, if the announcement was not found by the PRAM. ERROR in all MEMO displays, if the selection of the announcement is out of the selection range. The operation procedures to program and release the announcements are as follows:
R A. Control Keys
**ON A/C 001-049, 051-099, 101-105,
(1) ENTER When the ENTER pushbutton is pushed, the cursor moves into the MEMO 1 position. The required message is keyed-in on the keyboard and appears on the MEMO 1 display. When the ENTER pushbutton is pushed, the keyed-in data is accepted. The READY light comes on when the PRAM has found the corresponding announcement.
The required messages for the MEMO 2 and MEMO 3 displays are keyed-in the same as for the MEMO 1 display. The messages keyed-in into the MEMO 1, MEMO 2, and MEMO 3 display are alternately played from tape deck A and tape deck B.
R (2) Not Applicable
R (3) Not Applicable
R **ON A/C 106-149, 301-399,
R R R (1) Numerics Announcement numbers can be set by using the numeric keyboard. The number is shown in the SELECT display.
R R (2) Clear To erase the number from the SELECT display, push the Clear key.
R R R R (3) Enter The system will accept the selection by pushing the Enter key or after a time out automatically. The recorded number will be shown in the SELECT display and in the MEMO display with up to five messages.
中國航空網 m.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：A320飛機維護手冊 AMM Communications 通訊1(149)
