Rs232/422/485 Com Port Box Header: Jcom1, Jcom2 - MSI MS-98N9 Manual

RS232/422/485 COM Port Box Header: JCOM1~5 (COM2~6)
This connector is a 16550A high speed communications port that sends/receives
16 bytes FIFOs. You can attach a serial device to it.
PIN SIGNAL
1 DCD
2 RXD
3 TXD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 POWER/RI
PIN SIGNAL
1
TXD-
2 TXD+
3 RXD+
4 RXD-
5 GND
6 NC
7 NC
8 NC
9 NC
PIN SIGNAL
1 D-
2 D+
3 NC
4 NC
5 GND
6 NC
7 NC
8 NC
9 NC
RS232
DESCRIPTION
Data Carrier Detect
Receive Data
Transmit Data
Data Terminal Ready
Ground
Data Set Ready
Request To Send
Clear To Send
5V or 12V selected by Jumper / Ring Indicator
RS422
DESCRIPTION
Transmit Data, Negative
Transmit Data, Positive
Receive Data, Positive
Receive Data, Negative
Ground
No Connection
No Connection
No Connection
No Connection
RS485
DESCRIPTION
Data, Negative
Data, Positive
No Connection
No Connection
Ground
No Connection
No Connection
No Connection
No Connection
MS-98N9 V1.0
2-17