1) IC-29 Intercom Amplifier	1) FM-DH-14 Window Speaker
1) IM-836 Gooseneck Microphone	1) IC-29DB Delay Board (Optional)
1) IS-3022BB Speaker Station

This setup is for a typical hands-free ticket window intercom where the ticket taker has break-in priority over the customer. The system is voice-controlled from the inside, and returns to listening to the outside. Turning the VOX and ANTIVOX adjustments on the front controls the switching sensitivity. Two buttons are provided on the inside for muting and re-establishing the conversation. The FM-DH-14 is designed for mounting in a clear-glass window.

NOTE: Complete setup information including internal jumper settings and detailed wiring is available for download in PDF form.  IC-29 Intercom Amplifier - Typical Cathlab Setup