Low cost 2Mb/s multiplixer 5 ports : 2 data + 1 Ethernet +1 Drop&Insert + 1 asynchronous nx64 kbps data ports with software selectable interface: V.35/V.36/X.21/RS-232/RS-449/RS-485 Local and remote management (Built-in SNMP Agent available) 19" case format for rackmount