Connection of external PA amplifier for paging. Up to four inputs from audio sources & 16 outputs to external paging zones. Multiple zones or all zones can be selected and paged simultaneously.

One or two cards per Main Frame, used in lieu of AI-900MS card. The AI-900AL allows a standard telephone with caller-ID capabilites to be used in place of a master station for communication functions. One or two phones per card, taking the place of an AI-900MS card supporting two master stations. Equipped with audio recording outputs for each telephone connected.

One card per Main Frame. The AI-900CO allows the connection of up to two outside phone lines, with audio recording outputs for each line. Integration with outside lines allows communication between sub or master station and standard telephones, cell phones, or pagers.

Used to create a direct-select style master station in place of a digital master. Used with AI-910DI for individual selector buttons and call-in LEDs. Also allows integration with external security systems via AI-910DI board.

One or two cards per Main Frame. The AI-900MS card provides connection and audio recording outputs for one or two master stations. With two cards installed, four master stations vcn be connected to one Main Frame.

Up to four cards per Main Frame. Each AI-900RS card supports up to 16 substations, and up to 64 substations per Main Frame with four cards installed. Connect subs with simple two conductor shielded wire homerun to the Main Frame.

One card per Main Frame in multi-exchange system. The AI-900TI card is used to interconnect multiple Main Frames, expanding the capacity and functionality of the system. Up to four voice paths between Main Frames.

The AI-910DI is used in conjunction with the AI-900DI board to provide relay outputs to control external devices or systems. Each board contains 32 programmable relays, and multiple boards can be used for up to 1024 relays. Use for integration with access control and/or video surveillance systems.

The AI-CP170 Interface board provides the necessary interface for any standard speaker with a 25V transformer and a Normally Open call button to be used as a remote station on the AI-900 system. Simple wire connections are provided for easy connection. Install the small circuit board behind the remote speaker or call button. Made for indoor use only.