2-5
Hardware Setup
h
RS232/422/485 Serial Port
The serial port is a 16550A high speed communications port that sends/ receives
16 bytes FIFOs. You can attach a serial mouse or other serial devices directly to
the connector.
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
Voltage select setting by jumper
RS232
PIN
SIGNAL
DESCRIPTION
1
2
3
4
5
6
7
8
9
422 TXD-
422 RXD+
422 TXD+
422 RXD-
GND
NC
NC
NC
NC
Transmit Data, Negative
Receive Data, Positive
Transmit Data, Positive
Receive Data, Negative
Signal Ground
No Connection
No Connection
No Connection
No Connection
RS422
PIN
SIGNAL
DESCRIPTION
1
2
3
4
5
6
7
8
9
485 TXD-
NC
485 TXD+
NC
GND
NC
NC
NC
NC
Transmit Data, Negative
No Connection
Transmit Data, Positive
No Connection
Signal Ground
No Connection
No Connection
No Connection
No Connection
RS485
Summary of Contents for SYS8F377VGGA-OM
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