Serial port header: jcom1 (optional) – MSI RS482M4-FD/ILD/IL/L User Manual

Page 37

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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

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