Gigabyte MVBAYAI - Serial Port Connectors

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Hardware Installation
5) COM1 (Serial Port 1 Cable Connector)/JRS3/JRS2/JRS4/JRS1
6) JCOM1 (COM1 Select RS232/422/485 Jumper)
7/8/9/10) RS232/RS422/RS485 Select Jumpers for COM1)
The COM header can provide one serial port via an optional COM port cable. For purchasing the
optional COM port cable, please contact the local dealer.
COM1
JRS3
JRS1
JRS2
JRS4
1
9
2
10
1-2 Close: RS422/RS485
JRS1/JRS2/JRS3/JRS4:
JCOM1:
2-3 Close: RS232 (Default setting)
1
1
PinNo. Denition
1 RXD232
2 RXD1
3 RXD422
4 RXD1
5 RXD485
6 RXD1
1-2 Close: RS232
3-4 Close: RS422
5-6 Close: RS485
6
2
51
6
2
51
6
2
51
JCOM1
PinNo. Denition
1 NRXD1_D-
2 NDCD1_D-
3 NDTR1_D-
4 NTXD1_D-
5 NDSR1-
6 GND
7 NCTS1-
8 NRTS1-
9 NC
10 NRI1-