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76 PCM-3350 User's Manual
C.14 COM2 connector for 422/485 (CN18)
Table C-15: MJ1-A, -5 V, -12 V input
Pin Signal
1 -5 V
2 GND
3 -12 V
Table C-16: MJ1-B, fan connector
Pin Signal
5 +5 V
6 GND
7 +12 V
C.15 Multifunction Jumpter (MJ1)
Table C-14: COM2 connector for 422/485 (CN18)
Pin Signal
1 RXD - 485
2 RXD + 485
3 TXD + 485
4 TXD - 485