The master station(s) shall be Alpha Communications® / Ring model AA916 or approved equivalent. Master(s) shall have clear two-way communications. Master(s) shall be finished in Dark Grey plastic, and shall feature a button keypad. Master(s) shall be desk type and can be surface wall mounted using an optional model GF933 wall mounting bracket. Master(s) features a remote input circuit which allows for automatically dialing of a pre-programmed call number. Master(s) shall be used with the RM5000EX and/or CB901EX series microprocessor intercom systems.
Master(s) shall have three levels of voice capability: hands-free loudspeaking, soft-speaking (when used as handset) and total private communications (when used as handset).
Master(s) shall require a model KB170 wall mounting jack and plate and a BF640 series plug-in connector cable and harness assembly. The KB170 shall mount over a single gang electrical 'gem' box or plaster ring.
Contractor shall observe all local and national electrical and building codes.
Although only the size and weight of a conventional telephone handset, the AA916 combines all the essential functions needed for effective internal communication in one compact unit: hands-free loud-speaking soft-speaking, and confidential total privacy. It is designed for a desk use or wall-mounting using an optional wall bracket (model GF933). On the desk or wall, it permits the user to converse with the caller, hands-free, from anywhere in the room. Master is designed to work with the RM5000EX or CB901EX series microprocessor intercom systems.
The station AA916 has a remote input circuit which allows for automatically dialing of a pre-programmed call number. The input to the circuit is from a closing contact to two of the pins in the station's wall socket, (pins 7 and 8). The station permits connection to a suitable external loudspeaker (maximum load 16 ohms) to increase the station's sound coverage where desired. When the AA916 is picked up in handset mode, the built-in speaker's audio level is muted down for a confidential conversation, not to the external speaker.
||Length: 8.8" (224mm)
Width: 2.8" (72mm)
Height: 2.0" (51mm)
|Weight:||0.58 lb. (265g)|
|Operating Voltage:||24V DC+/- 20%|
|Power Consumption:||approx. 5W|
|Frequency Range:||300 - 5000 Hz|
|Galvanic Line:||0 dB (1 mW/600 ohm)|
|Speech Level:||normal 12 dBm, max + 4dBm|
|Tone Signalling:||according to CCITT norms|
|Loudspeaker Impedance:||50 ohms|