Thread: REN Booster
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Old 26th Feb 2011, 9:36 am   #10
russell_w_b's Avatar
Join Date: Jul 2007
Location: Penrith, Cumbria, UK.
Posts: 3,256
Default Re: REN Booster

Originally Posted by BakeliteBear View Post
Can anyone recommend a current source for a REN booster?
The BT REN booster I have (not used currently) isn't actually a ringing generator, but reinforces the ringing signal outgoing from the booster by detecting it and triggering a +VE or -VE pulse to coincide with the incoming +VE and -VE ringing waveform.

The reinforced ringing current is derived from a mains-powered PSU inside the booster unit.

In other words, it takes the application of a ringing voltage input from the line to create a reinforced (lower-impedance) ringing supply to one's telephones. Maybe other REN boosters work differently?

Russell W. B.
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