B&B Electronics 232PE Benutzerhandbuch

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232PE3095 Manual
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B&B Electronics  --  PO Box 1040  --  Ottawa, IL  61350
PH (815) 433-5100  --  FAX (815) 434-7094
When a port has this option, an additional printed circuit board
will be mounted to the main board.  Use Figure 2 to locate its
position.  Refer to Table 3 for pin out, signal name, and signal
direction information.  Also, refer to Figure 5 for a simplified
schematic showing the relationship between the master port and a
port configured with the RS-422/485 option.
NOTE:  This option only supports transmit and receive data signals
(TD & RD) from the master port.
Refer to Appendix B for cable charts.
RS-422 Mode
To configure the port for RS-422 four-wire mode, five jumpers
must be set.  Jumper JP1 must be placed in the “SD” position.
Both JP2 jumpers must be placed in the four-wire “4W" position.
Jumper JP3 must be place in the "ON" position.  Jumper JP4
should be placed in the "ON" position.  Refer to Figure 6 for these
jumper locations.
Figure 5.  Simplified RS-422/485 Schematic