Speech Buffer

The Speech Buffer Module connects to the Operator handset(s) circuit and provides buffered, transformer isolated speech signals for outputting to a voice recorder.

It is powered from the Concentrator –50V supply and provides approximately unity gain into a high impedance load (>10KΩ) and 6dB attenuation into a 600Ω load.

The module plugs into a Krone connector mounted in the rear of the Concentrator cubicle and is protected against incorrect insertion and –50V supply reversal.