2 x RS-232, 2 x RS-232/422/485 (with power and isolation), 2 x USB 2.0.
Features
4 COM support with ±15kV air gap ESD protection: COM1: RS-232/422/485 (Isolation , RS-485 auto flow control), COM2: RS-232/422/485 (Wake on Ring, RS-485 auto flow control, supply 12V/5V power selected by jumper), COM3/4: RS-232 (Wake on Ring).
Support 2 x USB2.0 by internal box wafer connector.
Optional rear I/O connector at coastline or internal connector.
Mainly compatible with MIO-ultra SBC from mechanical point of view.