Dial Switch on IG502
Dial Switch on IG502
![](https://desk.zoho.com/portal/api/uploads/edbsn858cf8f95778e1bbfde0a5506b738dd2507d928c851cb9ee85949d664202bae0/content?portalId=edbsn7f00a345b709afa057bba17580fd605615a567e69d8396e24f8da61d6f9258ad)
- 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.