Rs-485 (4-Wire) And Rs-422 Operation - Digi XTend User Manual

RS-485 (4-wire) and RS-422 operation

RS-485 (4-wire) and RS-422 operation
The Module Assembly reads and applies the DIP switch settings only during power-on.
The following figure shows the RS-485 (4-wire) and RS-422 DIP switch settings.
The following figure shows the RS-485 (4-wire) and RS-422 DIP switch settings with termination (optional).
Enabling termination activates a 120 Ω resistor between T+ and T-.
The following figure shows the pins that the female RS-232 (DB-9) serial connector uses.
For the RJ-45 connector pin designations to use in RS-485/422 environments see Male DB-9 to RJ-45 Adapter on
page 93 and Female DB-9 to RJ-45 Adapter on page 94.
The following table provides the RS-485/422 (4-wire) signals and their implementations on the Module Assembly.
XTend RF Module User Guide 98