Serial Port Connector: Jcom1/Jcom2/Jcom3 - MSI MS-98H5 User Manual

Serial Port Connector: JCOM1/JCOM2/JCOM3

This connector is a 16550A high speed communications port that sends/receives
16 bytes FIFOs. You can attach serial devices to it through the optional serial
port bracket.
JCOM1 Connector
COM1~2: RS-232/422/485 with 0V/5V/12V
RS232
1
3
5
7
9
11
13
15
17
RS422
1
3
5
7
9
11
13
15
17
RS485
1
3
5
7
9
11
13
15
17
PIN SIGNAL DESCRIPTION
2 DCD Data Carrier Detect
4 SIN Signal In
6 SOUT Signal Out
8 DTR Data Terminal Ready
10 GND Signal Ground
12 DSR Data Set Ready
14 RTS Request To Send
16 CTS Clear To Send
18 VCC/RI Voltage select setting by jumper/Ring
Indicator
PIN SIGNAL DESCRIPTION
2 422 TXD- Transmit Data, Negative
4 422 TXD+ Transmit Data, Positive
6 422 RXD+ Receive Data, Positive
8 422 RXD- Receive Data, Negative
10 GND Signal Ground
12 NC No Connection
14 NC No Connection
16 NC No Connection
18 NC No Connection
PIN SIGNAL DESCRIPTION
2 485 TXD- Transmit Data, Negative
4 485 TXD+ Transmit Data, Positive
6 NC No Connection
8 NC No Connection
10 GND Signal Ground
12 NC No Connection
14 NC No Connection
16 NC No Connection
18 NC No Connection
MS-98H5
2-9