Pro Intercom AD920 Balanced to Unbalanced Signal Conversion Interface

Pro Intercom AD920 Balanced to Unbalanced Signal Conversion Interface

The AD920 Balanced/Unbalanced Interface provides impedance matchingand signal conversion between a balanced intercom circuit and an unbalancedintercom circuit. Both channels become audio and light-signal compatible. Powermay come from either intercom circuit or from both simultaneously.

Key Features

• The AD920 is powered by the circuits to which it is attached
• It matches the unbalanced line to the balanced line and translates thesignal activating voltage of the unbalanced system to the 20kHz tone used forsignal activation in the balanced system and vice versa
• There are no controls or adjustments
• One AD920 is required for each circuit to be matched