4-Wire Mode; Figure 3. Rs-485 Wiring Diagram - B&B Electronics 485DSS User Manual

Figure 3. RS-485 Wiring Diagram

4-Wire Mode

To configure the 485DSS for RS-485 or 422 four-wire mode,
place the jumper in the 4W position. Refer to Figure 4 for
connecting information and Figure 2 for the jumper location. In this
position on a 4-wire network the Host and the RS-232 device can
communicate in full duplex. CAUTION: Data loss may occur if the
Host sends 485DSS commands while the host is receiving data from
the network!
6 485DSS-0308 Manual
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