MSI K8T800 User Guide - Page 36

Serial Port Connector: COM A, RJ-45 LAN Jack Optional

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Hardware Setup Serial Port Connector: COM A The mainboard offers one 9-pin male DIN connector as a serial port COM A. The ports are 16550A high speed communication ports that send/ receive 16 bytes FIFOs. You can attach a serial mouse or another serial device directly to the connector. 1 2 3 4 5 PIN 1 2 3 4 6 7 8 9 5 9-Pin Male DIN Connector 6 7 8 9 Pin Definition SIGNAL DESCRIPTION DCD SIN SOUT DTR GND DSR RTS CTS RI Data Carry Detect Serial In or Receive Data Serial Out or Transmit Data Data Terminal Ready) Ground Data Set Ready Request To Send Clear To Send Ring Indicate RJ-45 LAN Jack (Optional) The mainboard provides one standard RJ-45 jack for connection to Local Area Network (LAN). You can connect a network cable to the LAN jack. Activity Indicators RJ-45 LAN Jack Pin Definition PIN SIGNAL 1 TDP 2 TDN 3 RDP 4 NC 5 NC 6 RDN 7 NC 8 NC DESCRIPTION Transmit Differential Pair Transmit Differential Pair Receive Differential Pair Not Used Not Used Receive Differential Pair Not Used Not Used 2-15

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2-15
Hardware Setup
Serial Port Connector: COM A
The mainboard offers one 9-pin male DIN connector as a serial port
COM A.
The ports are 16550A high speed communication ports that send/
receive 16 bytes FIFOs.
You can attach a serial mouse or another serial device
directly to the connector.
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
Pin Definition
9-Pin Male DIN Connector
1
2
3
4
5
6
7
8
9
RJ-45 LAN Jack (Optional)
The mainboard provides one standard RJ-45 jack for connection to Lo-
cal Area Network (LAN). You can connect a network cable to the LAN jack.
Pin Definition
PIN
SIGNAL
DESCRIPTION
1
TDP
Transmit Differential Pair
2
TDN
Transmit Differential Pair
3
RDP
Receive Differential Pair
4
NC
Not Used
5
NC
Not Used
6
RDN
Receive Differential Pair
7
NC
Not Used
8
NC
Not Used
RJ-45 LAN Jack
Activity
Indicators