MADR - Microphone Amplifier for Dynamic Microphone
From Zenitel Wiki
Highlights
- Amplified Calling: Through separate loudspeaker
- Two-way speech communication through separate loudspeaker
- Accepts audio inputs from dynamic microphones
- Adjustable input level
- RCO input with relay and relay driver
- Fastens onto mounting rail in AlphaCom exchange.
- --> The board can also be modified to accept input electret microphones. Please consult your AlphaCom dealer.
Additional Documentation
For more documentation please see http://www.zenitel.com/product/product/microphone-amplifier
Connectors and Switches