Rs-422/485 Slave Port Option - B&B Electronics 232XSSD4 Manual

Figure 5. Simplified RS-232 Schematic

RS-422/485 Slave Port Option

The RS-232 transmit and receive data signals on the Master
port will be converted to balanced, full-duplex RS-422 or half-duplex
RS-485 signals with this option. The 232XSSD4 comes standard
with four RS-485 (2 or 4-wire) slave ports. Refer to Appendix B for
cable charts.
Pin # Signal
15 TD(A)
14 TD(B)
7 SG
17 RD(A)
16 RD(B)
10
B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350
Table 5. RS-422/485 PORTS A - H
Description
Transmit Data (-)
Transmit Data (+)
Signal Ground
Receive Data (-)
Receive Data (+)
PH (815) 433-5100 -- FAX (815) 433-5104
RS-422/485
Signal
Direction of
Ports A - H
Output
Output
<------>
Input
Input
232XSSD43800 Manual