Telephone Voltages for Data Modem

Discussion in 'General Electronics Chat' started by dallaire63, Feb 22, 2008.

  1. dallaire63

    Thread Starter New Member

    Feb 22, 2008
    I have a data modem application. Non connect phone voltage is 51 vdc, conneted phone voltage is 8 vdc. Is the low connected voltage not allowing my modem to not connect? The modem answers but does not completly connect. Modem tone locks up or disconnects. Thanks for the help