4. Each Component Function
12
DS-280H Series User’s Manual
Serial Port Interface : SERIAL COM1/COM2
Connector for Serial Port Interface is provided.
Table 4.4. Serial Port Interface
Connector type
RJ-45
Pin No.
Signal name
1
RTS
Request to send
2
DTR
Data terminal ready
3 TXD
Transmit
data
4 GND
ground
5
DCD
Data carrier detect
6 RXD
Receive
data
7
DSR
Data set ready
8
CTS
Clear to send
CAUTION
Do not Insert LAN Cable into Serial Port.
This product may malfunction or cause a failure.