Aiphone AI-900MF Main Frame

The Integrated Intercommunication System exchange Main Frame is modular, and capable of future expansion by adding additional station line cards and/or exchanges as required. Each exchange Main Frame is capable of supporting a maximum configuration of four (4) Master Stations or Telephone Master Stations and sixty-four (64) Substations or a minimum configuration of two (2) Master Stations or Telephone Master Stations and sixteen (16) Substations. Optional tie-line cards allow interconnection of up to sixteen(16) exchange Main Frames for a maximum system capacity of sixty-four (64) Master Stations or Telephone Master Stations and one thousand and twenty-four (1024) Substations.

Each Main Frame has the capacity to accept two (2) Master Station or Telephone Master Station Line Cards, four (4) Sub-station Line Cards, one (1) C/O Telephone Line Interface Card, one (1) Audio Function Card and one (1) Tie-Line Interface Card. All system cards have removable terminal blocks for solder-less wiring terminations.

The Exchange Main Frame requires up to two (2) external Power Supply Units with a maximum current consumption of 7 amps. A 24 VDC input is available for use with a backup power supply to maintain operating capability in the event of the building's primary power failure. The Exchange Main Frame has a Power ON/OFF switch and LED's for Power and Status indication. System cards connect to an integral back-plane motherboard with onboard microprocessor, real-time clock and an internal power supply board with field-replaceable fuses. The speech path configuration is a time-sharing switch with twelve (12) types of internal sound sources. System programming can be performed exclusively with an external computer and all parameters are stored in EEPROM. Two (2) RS-232C ports, D-sub connector, 9-pin, female are available for separate programming and data logging connections.

Operating temperature range is +32 to +104 degrees F (0 to +40 degrees C). The enclosure finish is pre-coated steel plate, black, and 30% gloss. Dimensions (W x H x D), excluding the rack mounting bracket, is 16.54" x 17.47" x 11.35" (420 x 443.7 x 288.3 mm) and weight is 28 lbs. (12.7 kg). The exchange Main Frame is rack-mountable and occupy ten (10) EIA 19" rack spaces. An accessory wall-mount bracket is available with material and finish steel, black, electrode position paint with dimensions (W x H x D) of 15.41" x 17.32" X 2.28" (391.4 x 440 x 58 mm) and weight of 4.63 lbs. (2.1 kg). System programming software, installation/operators manuals are included with each Main Frame.

Features (some features require optional circuit cards)

• Up to 4 Master Stations or Single-Line Phones
  2 Masters per AI-900MS card;
  2 Phones per AI-900AL card)
• Up to 64 Substations
• Up to 2 CO lines
• Paging to 19 Zones
• Tie Line Connection to Additional Mainframe
• RS-232 Input/Output for System Programming and Event Logging