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3 communication ports: One RS232 port (DB9 serial port uses FX3U protocol 38400,7,E,1), one RS485 communication port (communication protocol can be set to D8120) and one RS485 communication port (optional) (communication protocol can be set to D8120).
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.