Lan (Rj-45) Jacks: Giga-Bit Lan; Serial Port Connectors: Com A & Com B - MSI 655 Max User Manual

MS-6730 ATX Mainboard
Serial Port Connectors: COM A & COM B
The mainboard offers two 9-pin male DIN connectors as serial port COM
A. The ports are 16550A high speed communication ports that send/receives16
bytes FIFOs. You can attach a serial mouse or other serial devices directly to
the connectors.
1 2 3 4
6 7 8 9
9-Pin Male DIN Connector

LAN (RJ-45) Jacks: Giga-bit LAN

The mainboard provides a standard RJ-45 jacks for connection to Local
Area Network (LAN). Giga-bit LAN enables data to be transferred at 1000,
100 or 10Mbps. You can connect a network cable to either LAN jack.
RJ-45 LAN Jack
2-12
5
PIN
1
2
3
4
5
6
7
8
9
PIN
1
2
3
4
5
6
7
8
Pin Definition
SIGNAL DESCRIPTION
DCD Data Carry Detect
SIN Serial In or Receive Data
SOUT Serial Out or Transmit Data
DTR Data Terminal Ready)
GND Ground
DSR Data Set Ready
RTS Request To Send
CTS Clear To Send
RI Ring Indicate
Giga-bit LAN Pin Definition
SIGNAL DESCRIPTION
D0P Differential Pair 0+
D0N Differential Pair 0-
D1P Differential Pair 1+
D2P Differential Pair 2+
D2N Differential Pair 2-
D1N Differential Pair 1-
D3P Differential Pair 3+
D3N Differential Pair 3-