Dial Switch on IG502
- The pull-down resistance is OFF by default, and the dial switch is close to the non-antenna side.
- The corresponding relationship of dial switch is as follows:
- Interface 1A pull-up resistance
- Interface 1B pull-down resistance
- Interface 2A pull-up resistance
- Interface 2B pull-down resistance
- In the field application environment, if there are multiple nodes in the RS-485 bus network and the network is unstable, the pull-down resistance can be adapted accordingly.
- The pull-up resistance and pull-down resistance are both 750 ohm.
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