Serial port header: jcom1 (optional) – MSI RS482M4-FD/ILD/IL/L User Manual
Page 37
2-20
MS-7191 M-ATX Mainboard
IEEE 1394 Connectors: J1394_1 (Optional)
The mainboard provides one 1394 pin header that allows you to connect IEEE
1394 ports via an external IEEE1394 bracket (optional).
Pin Definition
PIN
SIGNAL
PIN
SIGNAL
1
TPA+
2
TPA-
3
Ground
4
Ground
5
TPB+
6
TPB-
7
Cable power
8
Cable power
9
Key (no pin)
10
Ground
Foolproof
design
Connected to J1394_1
(Green connector)
IEEE1394 Bracket (Optional)
J1394_1
1
2
9
10
Serial Port Header: JCOM1 (Optional)
The mainboard offers one 9-pin header as serial port. The port is a 16550A
high speed communication port that sends/receives 16 bytes FIFOs. You can attach
a serial mouse or other serial device directly to it.
Pin Definition
PIN
SIGNAL
DESCRIPTION
1
DCD
Data Carry Detect
2
SIN
Serial In or Receive Data
3
SOUT
Serial Out or Transmit Data
4
DTR
Data Terminal Ready)
5
GND
Ground
6
DSR
Data Set Ready
7
RTS
Request To Send
8
CTS
Clear To Send
9
RI
Ring Indicate
JCOM1
1
5
6
9