Rs232/422/485 Serial Port Connector: Jcom1 - MSI MS-98I8 Manual

RS232/422/485 Serial Port Connector: JCOM1

This connector is a 16550A high speed communications port that sends/receives
16 bytes FIFOs. You can attach a serial device to it through an optional serial
port bracket.
RS232
RS422
RS485
PIN SIGNAL DESCRIPTION
1
NDCD Data Carrier Detect
2 NSIN Signal In
3 NSOUT Signal Out
4 NDTR Data Terminal Ready
5 GND Signal Ground
6 NDSR Data Set Ready
7 NRTS Request To Send
8 NCTS Clear To Send
9 VCC 5V or 12V selected by jumper
PIN SIGNAL DESCRIPTION
1 422 TXD- Transmit Data, Negative
2 422 TXD+ Transmit Data, Positive
3
422 RXD+ Receive Data, Positive
4 422 RXD- Receive Data, Negative
5 GND Signal Ground
6 NC No Connection
7 NC No Connection
8 NC No Connection
9 NC No Connection
PIN SIGNAL DESCRIPTION
1 485 TXD- Transmit Data, Negative
2 485 TXD+ Transmit Data, Positive
3 NC No Connection
4 NC No Connection
5 GND Signal Ground
6 NC No Connection
7 NC No Connection
8 NC No Connection
9 NC No Connection
MS-98I8
2-9