232XS2497 Manual
5
B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350
PH (815) 433-5100 -- FAX (815) 433-5109
Table 4. DTE MASTER PORT CHART
The 232XS5 supports the following RS-232 signals: TD, RD,
SG, RTS, CTS, DCD, DSR and DTR.
NOTE: All other lines are not connected.
The Smart Switch selects port A as the default port at power up.
Table 3. DCE MASTER PORT CHART
Master Port
(DCE)
Signal
A,B,C,D & E Ports
(DTE)
Pin# Direction
Description
Pin#
Direction
3
Input
Transmit Data (TD)
3
Output
2
Output
Receive Data (RD)
2
Input
7
Input
Request to Send (RTS)
7
Output
8
Output
Clear to Send (CTS)
8
Input
4
Input
Data Terminal Ready (DTR)
4
Output
6
Output
Data Set Ready (DSR)
6
Input
1
Output
Data Carrier Detect (DCD)
1
Input
5
<------->
Signal Ground (SG)
5
<----->
Master Port
(DTE)
Signal
A,B,C,D & E Ports
(DCE)
Pin# Direction
Description
Pin#
Direction
3
Output
Transmit Data (TD)
3
Input
2
Input
Receive Data (RD)
2
Output
7
Output
Request to Send (RTS)
7
Input
8
Input
Clear to Send (CTS)
8
Output
4
Output
Data Terminal Ready (DTR)
4
Input
6
Input
Data Set Ready (DSR)
6
Output
1
Input
Data Carrier Detect (DCD)
1
Output
5
<------->
Signal Ground (SG)
5
<----->
