Gigabyte MVBAYAI Manual - Page 19
COM1 Serial Port 1 Cable Connector/JRS3/JRS2/JRS4/JRS1, JCOM1 COM1 Power Select jumper, 8/9/10 RS232
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Page 19 highlights
5) COM1 (Serial Port 1 Cable Connector)/JRS3/JRS2/JRS4/JRS1 6) JCOM1 (COM1 Power Select 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. JRS4 JRS1 JRS2 JRS3 JCOM1 COM1 1 9 2 10 Pin No. 1 2 3 4 5 6 7 8 9 10 Definition NRXD1_DNDCD1_DNDTR1_DNTXD1_DNDSR1GND NCTS1NRTS1NC NRI1- JRS1/JRS2/JRS3/JRS4: 1 1-2 Close: RS232 (Default setting) 1 2-3 Close: RS422/RS485 JCOM1: 15 26 1-2 Close: RS232 15 26 3-4 Close: RS422 15 26 5-6 Close: RS485 Pin No. 1 2 3 4 5 6 Definition RXD232 RXD1 RXD422 RXD1 RXD485 RXD1 - 19 - Hardware Installation
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- 19 -
Hardware Installation
5)
COM1 (Serial Port 1 Cable Connector)/JRS3/JRS2/JRS4/JRS1
6)
JCOM1 (COM1 Power Select 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
Pin No.
Definition
1
NRXD1_D-
2
NDCD1_D-
3
NDTR1_D-
4
NTXD1_D-
5
NDSR1-
6
GND
7
NCTS1-
8
NRTS1-
9
NC
10
NRI1-
1-2 Close: RS232 (Default setting)
JRS1/JRS2/JRS3/JRS4:
JCOM1:
2-3 Close: RS422/RS485
1
1
Pin No.
Definition
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
5
1
6
2
5
1
6
2
5
1
JCOM1