USBG-422MiNi – Product Manual
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4.
Signal Wiring
The RS-422/485 signal requires dedicated wire pairs for transmit and receive. The
transmit wires are used to send data to as many as 10 receivers, as stated in the
specifications of RS-422. Since the USBG-422MiNi uses RS-485 line driver technology, up
to 32 receivers are possible. The following diagram shows RS-422 and RS-485 4-wire
scheme: Settings are listed as follows:
Figure 2
RS-485 2-Wire Scheme
The following diagram shows RS-485 2-Wire scheme:
Figure 3
