Half-duplex data transfer over 2-wire dedicated line, duplex data transfer over 4-wire dedicated line
Thanks to the modem's relaying ability, lines with several connected stations can also be implemented. The MD2 can also be used as repeater on 2-wire and 4-wire dedicated lines.
Private or leased telephone lines can be used as dedicated lines. The MD2 is also suitable for connection to a radio device with modem input.