B&B Electronics 232PE Benutzerhandbuch
6
232PE3095 Manual
B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350
PH (815) 433-5100 -- FAX (815) 434-7094
RS-422/485 Option
The RS-232 transmit and receive data signals on the master
port of the 232XSS will be converted to balanced full-duplex RS-
422 or half-duplex RS-485 signals with this option.
422 or half-duplex RS-485 signals with this option.
Figure 4. Simplified RS-232 Schematic
Table 3. RS-422/485 PORTS A - D
Pin #
Signal
Description
RS-422/485
Signal Direction
of Ports A - D
Signal Direction
of Ports A - D
2
TD(A)
Transmit Data (A) Output
14
TD(B)
Transmit Data (B) Output
7
SG
Signal Ground
<------>
3
RD(A)
Receive Data (A)
Input
16
RD(B)
Receive Data (B)
Input