2-9
Hardware Setup
RS232/422/485 Serial Port Connector: JCOM2
This connector is a 16550A high speed communications port that sends/receives
16 bytes FIFOs. You can attach serial devices to it through the optional serial port
bracket.
RS232
PIN
SIGNAL DESCRIPTION
1
2
3
4
5
6
7
8
9
DCD
RXD
TXD
DTR
GND
DSR
RTS
CTS
RI
Data Carrier Detect
Receive Data
Transmit Data
Data Terminal Ready
Signal Ground
Data Set Ready
Request To Send
Clear To Send
Ring Indicate
RS422
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
RS485
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
Summary of Contents for SYS8F377VGGA-OM
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