- 4 COM ports for APAX controller
- APAX (EtherIO) bus connector
- Virtual COM operation mode
- COM 1, COM 2: RS-232/422/485
- COM 3, COM 4: RS-232/422/485
- 8 data bits and 1, 1.5, 2 stop bits
- Baud rate 600bps ~ 115.2 kbps
- 8KV (air), 4KV (contact) ESD protection
- 2,000 VDC (power Line) EFT protection
- 2,500 VDC isolation protection (between COM port and backplane)