Chapter2 Installation
21
User’s Manual
z
COMA1: RS-232 Serial Port #1 Connector (D-Sub)
Description
Pin No.
RS-232 RS-422
RS-485
1
Data Garrier Detect (DCD1)
Transmit Data- (TXD-)
Data+
2
Receive Data (RXD1)
Transmit Data+ (TXD+)
Data-
3
Transmit Data (TXD1)
Receive Data+(RXD+)
NC
4
Data Terminal Ready (DTR1#)
Receive Data-(RXD-)
NC
5 Ground
NC NC
6
Data set Ready (DTR1#)
NC
NC
7
Request To Send (RTS1#)
NC
NC
8
Clear To Send (CTS1#)
NC
NC
9
Ring Indicator (RI1#)
NC
NC
z
COMB1: RS-232 Serial Port#2 Connector (Header)
Description
Pin No.
RS-232
1
Data Carrier Detect (DCDB #)
2
Data Set Ready (DSRB #)
3
Receive Data (RXDB)
4
Request To Send (RTSB #)
5
Transmit Data (TXDB)
6
Clear To Send (CTSB #)
7
Data Terminal Ready (DTRB #)
8
Ring Indicator (RIB #)
9 Ground
10 KEY
COMA1
1 5
9
6
COMA1
10
9
2
1
COMB1
COMB1
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