1 Reply Latest reply on Jan 20, 2015 10:12 AM by patrick

    I have a pair of TSU 120 units connecting two PBX systems together over a T-1 span. The first 18 channels are assigned to the DSX1 port.  The last 6 channels are assigned to the data port for some data gear.  I need to convert the PBX signaling to ISDN (1

    lgayle New Member

      I have a pair of TSU 120 units connecting two PBX systems together over a T-1 span. The first 18 channels are assigned to the DSX1 port.  The last 6 channels are assigned to the data port for some data gear.  I need to convert the PBX signaling to ISDN (17B+D) and use the 18th channel for common signaling (D-Channel) for just the DSX1 port.  The channels for the data port need to stay the same with no changes in anything.  Is this possible and do I need to make any changes in the TSU120?