Chapter2 Installation
16
User’s Manual
COM2: RS-232 Serial Port#2 Connector (Header)
Description
Pin No.
RS-232 RS-422
RS-485
1
Data Carrier Detect (DCDB #)
Transmit Data– (TXD-)
Data -
2
Data Set Ready (DSRB #)
NC
NC
3
Receive Data (RXDB)
Transmit Data+ (TXD+)
Data +
4
Request To Send (RTSB #)
NC
NC
5
Transmit Data (TXDB)
Receive Data+ (RXD+)
NC
6
Clear To Send (CTSB #)
NC
NC
7
Data Terminal Ready (DTRB #)
Receive Data- (RXD-)
NC
8
Ring Indicator (RIB #)
NC
NC
9 Ground
NC
NC
10 NC
NC
NC
1
2
9
10
COM2
COM2
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