Black Box COMPACT T1 MT850A - Manual (Page 439)

Compact T1 - Release 6.1 11-7
Power Supply
Ringer Waveform Options
Ringer Waveform Options
The default standard ringer waveform setting (for all three power supplies) will work
well in most applications. However, if there is a ringer detection problem with the
equipment, the user can alter the shape of the waveform by populating the jumpers on
the power supply as described below. The Ringer Frequency can be configured using
jumpers, as displayed below.
J7 J8
J6
J5