Fanless Box PC - Isolated RS485 Automation Controller The IEXP-712 brings field-level connectivity into a fanless aluminium box PC. Two RS485 serial channels can be supplied with photoelectric isolation, so ground potential differences between cabinets, drives and instruments no longer reach the mainboard. An additional JCM custom pin port carries application-specific wiring, and six USB 3.0 ports cover cameras, barcode readers and storage. Designed for the control cabinet