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 (1) Digital Outputs The connections with the CFDIU is a type 1 system. This type of system has an ARINC 429 input from the CFDIU and an ARINC 429 output. This system is thus capable of a two-way communication with the CFDIU (Ref.31-32). The radio-communication equipment receives the frequency data through words from RMPs. These words have a structure and a refresh rate defined in ARINC 429 characteristics specification. On the output bus, each HF transceiver transmits the labels 354, 356,
 377.
 An ARINC 429 High-Speed (HS) output bus from the HF1 transceiver
 (HFDR1) to the ATSU is used to transmit data link messages.
 A further output bus from the HF1 (HFDR1) to the MDDU, through the
 DLRB, is used for data loading.

 This table contains all the output parameters in the digital form. They are sorted as per the numerical order of their output label. The followind table gives:
R 1EFF : 051-099, 106-149, 201-299, 301-399, 1 23-11-00Page 22 1401-499, 1Aug 01/05 1 1 1CES 1

 -EQ.SYS.LAB.SDI: (SDAC,FWC,DMC...) output label for which the parameter is available
 -PARAMETER DEFINITION: parameter name
 -WORD RANGE/OPER RANGE/RESOLUTION ACCURACY: measurement range. Maximum value transmitted. When the digital value changes, the change step is equal to the accuracy
 -UNIT: unit in which the digital value is transmitted
 -SIG BIT: indicates whether a sign bit is available
 -BITS: number of bits used by the parameter in the label
 -XMSN/INTV: output transmission interval. The refresh rate is given in milliseconds
 -CODE : BNR: binary data word BCD: binary coded decimal data word ISO: data word coded in ISO5 code DIS: discrete data word HEX: hexadecimal coded HYB: mixed code
 -ALPHA CODE: indicates the parameter mnemonic code
 -SOURCE ORIGIN: parameter source computer or system.
 -------------------------------------------------------------------------------| PARAMETER LIST PARAMETER CHARACTERISTICS (NUMERIC) | -------------------------------------------------------------------------------|EQ.SYS.LAB.SDI|PARAMETER | WORD RANGE |UNIT|SIG |BITS|XMSN|CODE|ALPHA|SOURCE | | |DEFINITION| OPER RANGE | |BIT | |INTV| |CODE |ORIGIN | | |(*=REMARK)| RESOLUTION | | | | | | |BUS No.| | |(X=NOTE) | ACCURACY | | | | | | |ATA REF| | | | | | | | | | |CONV | -------------------------------------------------------------------------------| 354 |LRU IDENT | | | | | 50 | ISO| | | | | | | | | | | | | | | 356 |BITE | | | | | | | | | | |STATUS | | | | | 50 | ISO| | | | | | | | | | | | | | | 377 |EQUIP | | | | | | | | | | |IDENT | | | | |1000| BCD| | | -------------------------------------------------------------------------------
The equipment code of the HF transceiver is 019.
R 1EFF : 106-149, 211-299, 301-399, 401-499, 1 23-11-00Page 23 1 1 Aug 01/05 1 1 1CES 1

 (2) Output Discretes These Output discretes are the same for each HF circuit.
 -------------------------------------------------------------------------------
NAME ELECTRICAL LEVEL TO SIGNAL STATUS
 -------------------------------------------------------------------------------
KEY EVENT GND/O.C. SDAC GND=EMISSION
 PPT GND/O.C. HF COUPLER
 & AMU GND=EMISSION RECHANNEL PULSE 5V/O.C. HF COUPLER GND=RECHANNEL TUNE POWER 28V/O.C. HF GND=COUPLER
 TRANCEIVER TUNING RELAY INTERLOCK 28V/O.C. HF 28V=KEY TRANCEIVER ENABLED
 (3) Output Analog Signals These Output Analog Signals are the same for each HF circuit.
 -------------------------------------------------------------------------------
NAME ELECTRICAL LEVEL TO SIGNAL STATUS
 -------------------------------------------------------------------------------
AUDIO SIDETONE OUTPUT MODULATION AMU
 SELCAL OUTPUT MODULATION AMU
 **ON A/C ALL
 6. Component Description
_____________________
 A. HF Transceiver
 (1) Description The HF transceiver conforms to ARINC 600 specifications. The case size is 6cu.m.
 (a) HF transceiver face
 **ON A/C 001-049, 101-105, 151-199,
 (Ref. Fig. 005)
R **ON A/C 051-099, 106-149, 201-299, 301-399, 401-499,
 (Ref. Fig. 005A)
 1EFF : ALL 1 23-11-00Page 24 1 1 Aug 01/05 1 1 1CES 1

 HF Transceiver Face Figure 005 
R 1EFF : 1 1 1CES  001-049, 101-105, 151-199,  1 111 23-11-00 Page 25 May 01/05

 

 HF Transceiver Face
 Figure 005A

R 1EFF : 051-099, 106-149, 201-299, 301-399, 1 23-11-00Page 26 1401-499, 1Aug 01/05 1 1 1CES 1 **ON A/C ALL

 The transceiver features:
 -two jacks (PHONE and MIC)
 -a SQL/LAMP TEST pushbutton switch
 -three red warning lights : LRU FAIL, KEY INTERLOCK, CONTROL INPUT FAIL
　
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