22 XR Series Installation and Technical Instructions
Wiring
RS 485 Multi-Drop Wiring
1. Set the Communication Input Jumper (JP 1) to RS485.
2. Terminate the indicator’s communication wires at the RS 485 terminal
(J4), shown in Figure 3.4, using one of the following methods:
Parallel Multi-drop wiring
Split Multi-Drop Wiring
Multi-Drop IDs are set using the
CONFIG Dip-switches. For
settings, see Switches 8 & 9: Multi-
Drop ID on page 36.
SCALE CONTROLLER TO RD 1 TO RD 2 TO RD 3 ETC.
TX A RX A RX A RX A RX A
TX B RX B RX B RX B RX B
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