2-10
Hardware Setup MS-99A1
UART Connector: JUART1 (This function depends on CPU
module board)
Universal Asynchronous Receiver-Transmitter (UART) is responsible for
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.
PIN SIGNAL DESCRIPTION
1
2
3
4
5
6
7
8
9
DCD
RXD
TXD
DTR
GND
DSR
RTS
CTS
VCC_COM
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
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