B&B Electronics 232SS21600 User Manual
232SS21600Manual
5
B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104
The 232SS2 supports the following RS-232 signals: TD, RD, SG,
RTS, CTS, DSR, DCD, and DTR.
RTS, CTS, DSR, DCD, and DTR.
The Smart Switch selects port A as the default port at power up.
Serial Data Configuration
In order for the host device that is connected to the master port
to select any of the four ports, the Smart Switch must be set to
match the host's communication format. Dipswitch “SW1” is used to
select the communication format of the Smart Switch. Switch
positions 1 through 3 select the baud rate. Switch position 5 selects
7 or 8 data bits. Switch position 6 determines if parity is enabled or
disabled.
match the host's communication format. Dipswitch “SW1” is used to
select the communication format of the Smart Switch. Switch
positions 1 through 3 select the baud rate. Switch position 5 selects
7 or 8 data bits. Switch position 6 determines if parity is enabled or
disabled.
NOTE: A data format of 7 data bits, no parity and one stop is
not allowed.
not allowed.
Table 2. DCE MASTER PORT CHART
Master Port
(DCE)
Signal
A,B,C & D Ports
(DTE)
Pin#
Direction
Description
Pin#
Direction
2
Input
Transmit Data (TD)
2
Output
3
Output
Receive Data (RD)
3
Input
4
Input
Request to Send (RTS)
4
Output
5
Output
Clear to Send (CTS)
5
Input
6
Input
DCE Ready (DSR)
6
Output
7
GROUND
Signal Ground (SG)
7
GROUND
8
Output
Recv. Line Detect (DCD)
8
Input
20
Input
DTE Ready (DTR)
20
Output
Table 3. DTE MASTER PORT CHART
Master Port
(DTE)
Signal
A,B,C & D Ports
(DCE)
Pin#
Direction
Description
Pin#
Direction
2
Output
Transmit Data (TD)
2
Input
3
Input
Receive Data (RD)
3
Output
4
Output
Request to Send (RTS)
4
Input
5
Input
Clear to Send (CTS)
5
Output
6
Output
DCE Ready (DSR)
6
Input
7
GROUND
Signal Ground (SG)
7
GROUND
8
Input
Recv. Line Detect (DCD)
8
Output
20
Output
DTE Ready (DTR)
20
Input