
Communication cable overview
External Bypass Static Switch
Terminator 
Maintenance Bypass Panel
Relay output
Connectionplane 0P0957 | 
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X126B  | X127B  | 
X126A  | X127A  | 
X134A
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X177
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X131
X130
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X128 2
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X129 2
EMO (Display)
Q 6
Q Q 5 4
Q 3
Q Q 1 2
  | X134A  | X134B  | 
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1  | X177  | 2  | 1  | 1 2 3 4  | |
2  | X175  | X170  | |||
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  | Norm.op  | 
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1  | X128  | 
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1  | X129  | 
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  | MBP CAN I/O board 2  | |||||
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  | 0P4533 | ||||
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2  | 1  | 
X174
Earth fault sensor
Note 1
4  | -  | 
C2
X178  | 23  | +  | 
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C1
8 7 6 5 4 3 2 1
MBP Breakers  | X173  | 
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  | X172  | 
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1  | 2  | 3  | 4  | 5  | 6  | 7  | 8  | 9  | 10  | 11  | 12  | 
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1 
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1  | 2  | 3  | 4  | 5  | 6  | 
+  | -  | +  | -  | +  | -  | 
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  | 24VDC | 
Q5  | 
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  | Q6  | Shunt trip for  | 
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  | back feed  | 
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  | protection | 
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  | supply VDCor VDC  | 
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  | Terminator  | 
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  | -  | Max. 250VAC 5A  | 
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  | Note 1  | |
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  | X134B  | 
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Connectionplane  | 0P0957  | 
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  | X134A  | 
  | X134A  | 1  | 2  | 3  | 4  | 5  | 6  | 7  | 8  | 9  | 10  | 11  | 12  | 1 2 3 4  | X178  | 1 2 3  | 
  | C2  | ||||||
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  | MBP CAN I/O board1  | 
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  | EPO out X177  | 1  | 
  | 1  | X177  | 
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  | X172  | 
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  | C1  | 
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  | 654X173  | MBP Breakers  | 
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  | X131  | 1  | 2 placed on  | 
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  | 0P4533  | 
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X126B  | X127B  | 
  | protection  | 
  | (Display)EMO  | wall  | 789101112  | 1 X128 2  | X129 2  | 1  | 
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  | X176  | 4321  | Shunt trip  | |
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  | X130  | 
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  | Norm.op  | 
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  | Earth fault sensor  | 
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  | X175  | 
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  | X174  | 
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  | X128  | 
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  | 24VDC  | 
  | X126A  | X127A  | Backfeed  | 
  | 1  | Note 3  | 
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  | Relay output | 
  | Maintenance Bypass Panel  | 
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  | X129  | 2  | 
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  | EPO out  | 
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  | H7  | 
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  | H8  | 
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  | Note 2  | ||||
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X133A  | X185  | 
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  | Q7  | Q8  | 
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  | UVR  | 
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  | 1  | 2 X1823  | 4  | 
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  | 21 34 X180  | 
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  | X183  | 
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  | Battery CAN I/O boardX184  | -  | 
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  | UVR  | |
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  | ID 0  | 
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  | X185  | 
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  | Temp sensor  | ||||
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  | 0P4512  | 
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  | X181  | 
  | NTC  | |||||||
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  | NTC  | |
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  | X133A  | 
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  | X186  | 
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  | +  | Temp sensor  | |||
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  | X133B  | 1  | 2  | 3 4  | 5 6  | 7 8  | 
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  | Fuse1  | 
  | Fuse2  | 
  | Fuse3  | Fuse4  | 
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Note 1: Contact APC Application Team for correct  | 
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sizing.  | 
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Note 2: H7, H8 = 5V LED  | 
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Note 3: Q2, Q4 and Q6 are optional. If Q2 is not  | 
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present pins 3 and 4 must be shorted on both boards. If  | 
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Q4 is not present pins 7 and 8 must be shorted on both  | 
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boards. If Q6 is not present pins 11 and 12 must be  | 
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shorted on both boards.  | 
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Symmetra MW 1000 kW 480 V Installation -   | 21  |