R  SDAC Communication - Block Diagram 
R  Figure 007A 
R 1EFF :  401-499,  1  24-22-00 Page 47 
1  1  Aug 01/05
 1  1
 1CES  1

 -------------------------------------------------------------------------------
| CHANNEL 1 |
 |-----------------------------------------------------------------------------|
 | OUT | SDI | |FORMAT|REFRESH| No.OF|CODING| | | SOURCE |
 |LABEL|GEN1|GEN2| PARAMETER |(BNR | RATE |SIGNI-|RANGE |RESOL|UNIT| ORIGIN |
 | | | | DEFINITION | or | (MS) |FICANT| MIN/ | | | |
 | | | | | BCD) |MIN/MAX| BITS | MAX | | | |
 |-----|----|----|------------|------|-------|------|------|-----|----|--------| 
R  |-----|----|----|------------|------|-------|------|------|-----|----|--------| 
R  | 105 | 01 | 10 | IDG OIL | BNR |250/500| 8 | -256 | 1 |deg.| GCU 1 | 
R  | | | | INLET TEMP | | | | / |deg.C| C | GCU 2 | 
R  | | | | | | | | +256 | | | | 
R  |-----|----|----|------------|------|-------|------|------|-----|----|--------| 
R  | 106 | 01 | 10 | IDG OIL | BNR |250/500| 8 | -256 | 1 |deg.| GCU 1 | 
R  | | | | OUTLET TEMP| | | | / |deg.C| C | GCU 2 | 
R  | | | | | | | | +256 | | | | 
R  -------------------------------------------------------------------------------
R  **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
 -------------------------------------------------------------------------------
| CHANNEL 2 |
 |-----------------------------------------------------------------------------|
 | OUT | SDI | |FORMAT|REFRESH| No.OF|CODING| | | SOURCE |
 |LABEL|APU |EXT | PARAMETER |(BNR | RATE |SIGNI-|RANGE |RESOL|UNIT| ORIGIN |
 | |GEN |PWR | DEFINITION | or | (MS) |FICANT| MIN/ | | | |
 | | | | | BCD) |MIN/MAX| BITS | MAX | | | |
 |-----|----|----|------------|------|-------|------|------|-----|----|--------|
 | 071 | 01 | |APU GEN FREQ| BNR |250/500| 9 | 0/512| 1 Hz| Hz |APU GCU |
 | | | | | | | | | | | |
 | | | 10 |EXT PWR FREQ| | | | | | |GPCU |
 |-----|----|----|------------|------|-------|------|------|-----|----|--------|
 | 075 | 01 | |APU GEN | BNR |250/500| 8 | 0/256| 1 V | V |APU GCU |
 | | | |VOLTAGE | | | | | | | |
 | | | | | | | | | | | |
 | | | 10 |EXT PWR | | | | | | |GPCU |
 | | | |VOLTAGE | | | | | | | |
 |-----|----|----|------------|------|-------|------|------|-----|----|--------|
 | 100 | 00 | | AC LOAD | BNR |250/500| 8 | 0/256| 1per| per|APU GCU |
 | | | | | | | | cent|cent| |

R **ON A/C ALL
 -------------------------------------------------------------------------------| CHANNEL 1 | |-----------------------------------------------------------------------------| | OUT | | SDI | |REFRESH| | | SOURCE | |LABEL| BIT|GEN1|GEN2| PARAMETER | RATE | STATE 0 | STATE 1 | ORIGIN | | | No.| | | DEFINITION| (MS) | | | | | | | | | |MIN/MAX| | | | |-----|----|----|----|-----------|-------|----------|----------|--------------| | 050 | 11 | 01 | 10 | OVERLOAD |250/500|no warning| warning | | | | | | | WARNING | | | | | |-----|----|----|----|-----------|-------|----------|----------|--------------| | 050 | 12 | 01 | 10 | GENERATOR |250/500| no fault | fault | | | | | | | FAULT | | | | | |-----|----|----|----|-----------|-------|----------|----------|--------------| | 050 | 13 | 01 | 10 | IDG DIS-|250/500| not disc | disc | | | | | | | CONNECT | | | | | | | | | | STATUS | | | | | |-----|----|----|----|-----------|-------|----------|----------|--------------| | 050 | 14 | 01 | 10 | IDG DIS-|250/500| P/BSW OFF| P/BSW ON | | | | | | | CONNECT | | | | | | | | | | P/B POS | | | | | |-----|----|----|----|-----------|-------|----------|----------|--------------| | 050 | 17 | 01 | 10 | IDG OIL |250/500| no over- | overheat | From IDG | | | | | | OUTLET | | heat | | OUTLET TEMP | | | | | | OVERHEAT | | | | Input parame-| | | | | | | | | | ter with | | | | | | | | | | threshold | | | | | | | | | |185 deg.C plus| | | | | | | | | | or minus | | | | | | | | | | 5 deg.C | |-----|----|----|----|-----------|-------|----------|----------|--------------| | 050 | 18 | 01 | 10 | IDG OIL |250/500| low pres-| normal | | | | | | | LOW PRES- | | sure | pressure | | | | | | | SURE | | | | | |-----|----|----|----|-----------|-------|----------|----------|--------------| | 050 | 19 | 01 | 10 | GEN P/BSW |250/500| P/BSW OFF| P/BSW ON | | | | | | | POSITION | | | | |R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,

 -------------------------------------------------------------------------------| CHANNEL 2 | |-----------------------------------------------------------------------------| | OUT | | SDI | |REFRESH| | | SOURCE | |LABEL| BIT|GEN3| EXT| PARAMETER | RATE | STATE 0 | STATE 1 | ORIGIN | | | No.| | PWR| DEFINITION| (MS) | | | | | | | | | |MIN/MAX| | | | |-----|----|----|----|-----------|-------|----------|----------|--------------| | 052 | 11 | 01 | | OVERLOAD |250/500|no warning| warning | | | | | | | WARNING | | | | | |-----|----|----|----|-----------|-------|----------|----------|--------------| | 052 | 12 | 01 | | GENERATOR |250/500| no fault | fault | | | | | | | FAULT | | | | | |-----|----|----|----|-----------|-------|----------|----------|--------------| | 052 | 14 | 01 | | GEN P/BSW |250/500| P/BSW OFF| P/BSW ON | | | | | | | POSITION | | | | | |-----|----|----|----|-----------|-------|----------|----------|--------------| | 052 | 12 | | 10 | EXT PWR |250/500| not avai-| available| | | | | | | AVAILABLE | | lable | | | |-----|----|----|----|-----------|-------|----------|----------|--------------| | 052 | 13 | | 10 | EXT PWR ON|250/500| OFF | ON | | |-----|----|----|----|-----------|-------|----------|----------|--------------| | 052 | 15 | | 10 | CLASS II |250/500|no failure| failure | Actuated by | | | | | | FAILURE | | | | GPCU BITE | | | | | | | | | | Message | | | | | | | | | | Discrete |
　
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