Uart Connector: Juart1; Serial Port Connector: Jcom3, Jcom4, Jcom5, Jcom6 - MSI MS-99A1 User Manual

Hardware Setup
UART Connector: JUART1 (This function depends on CPU
module board)
Universal Asynchronous
asynchronous communications on the system and manages the system's serial
communication (COM) ports.

Serial Port Connector: JCOM3, JCOM4, JCOM5, JCOM6

This connector is a 16550A high speed communications port that sends/receives 16
bytes FIFOs. You can attach a serial device to it.
2-10
Receiver-Transmitter
PIN SIGNAL
1 DCD
2 RXD
3 TXD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 VCC_COM
(UART) is responsible
DESCRIPTION
Data Carrier Detect
Receive Data
Transmit Data
Data Terminal Ready
Signal Ground
Data Set Ready
Request To Send
Clear To Send
12V or 5V power output,
selected by jumper
for