The NEC XN120 Basic Rate ISDN Card, with two circuits on four channels, will support T or S mode, point-point or point-multipoint and power feed on each circuit.View more
£204.99
1 retailerThe ISDN trunk card allows the connection of one primary rate circuit operating the DASS II protocol. This allows up to 30 channels to be used from a single supplier connection.View more
£959.99
1 retailer