mbNET (MDH8xx) with two serial interfaces

The serial interface ports can be configured to RS232 or RS485 using software and no extra installation is required.

Digital inputs - to trigger the Internet dial-up router or to send an alarm by e-mail	RS-access via virtual COM port
Over 90 drivers for various types of control	Firewall with IP filtering, 1:1 NAT and Port Forwardingg
Internet connection via a network interface or the WAN modem (analog, ISDN, GSM, GPRS, EDGE, UMTS)	Secure connection via VPN (PPTP, IPSec, L2TP, and OpenVPN)
Firewall, DynDNS, DHCP, web callback, VPN (optional)	two SIM card slots for GSM / UMTS devices
4x LAN interface, 1x WAN interface	4 digital inputs, 2 digital outputs
2x RS-232/485 interface board (switchable between RS-232 and RS-485)	Compact metal housing with IP20 for DIN rail mounting
USB connection for configuration	Integrated web server for easy configuration