Product Specification Sheet APS327

Rev. 08/2013

AA906 Heavy Duty Industrial Master Stations (RM5000EX / CB901EX Series)

This Specsheet is for a product which is discontinued. Please contact us for alternative products.
Architects' And Engineers' Specifications

The heavy duty industrial master station(s) shall be Alpha Communications® / Ring model AA906 or approved equivalent. Master(s) shall have clear two-way communications. Master(s) shall be both dust and splash resistant. It shall be cast in silumin alloy and sprayed in olive green hardened lacquer finish. The station's one-piece rubber keyboard shall be protected by a stainless steel faceplate with call-warning lamp. Two (2) sealed nipples shall be provided for cable entry at the base of the station and master(s) shall require simple home-run wiring. Master(s) shall be surface wall mounted. Master(s) may be used directly outdoors and are designed to operate in a temperature range of minus 20 degrees to plus 50 degrees Celsius. Master(s) may be used with the optional (model GD519) privacy handset, for confidentiality or softspeaking, where required.

Master(s) shall be used with the RM5000EX and/or CB901EX series microprocessor intercom systems. 

Contractor shall observe all local and national electrical and building codes.

AA906 Heavy Duty Industrial Master Station
The AA906 heavy duty industrial master stations are designed for internal or external use and is both dust and splash resistant. It is cast in silumin alloy, sprayed in olive green hardened lacquer finish. The station's one-piece rubber keyboard is protected by a stainless steel faceplate with call-warning lamp. Two (2) sealed nipples are provided for cable entry at the base of the station.

The AA906 provides for either handset or loudspeaking use, when receiving a call. For handset use, add the optional (model GD519) handset. 

The AA906 is designed to work with the RM5000EX and/or CB901EX series microprocessor intercom systems.

  • Handsfree/loudspeaking
  • Confidential/softspeaking with optional handset
  • Camp-on busy / Conference
  • Hurry-up tone
  • Call-back / Call transfer
  • Remote control circuits (door locks etc.)
  • All/Group-call with reply back
  • Priority
  • Group Hunting
Operating Voltage: 
24V DC+/- 20%
Frequency range:
300 - 5000 Hz
Galvanic Line:
0 dB (1 mW/600 ohm)
Speech level:
normal: -12 dBm
Speech level:
max + 4dBm
Tone Signalling Level:
-10 dBm
External Loudspeaker Impedance:
16 to 50 ohms
Height: 11.5" (280mm) (incl. nipples)
Width: 6.3" (160mm)
Depth: 4.0" (102mm) (w/o handset)
Depth: 6.6" (165mm) (w/ handset)

Alpha Communications
42 Central Drive • Farmingdale • NY • 11735-1202 • Phone: (631) 777-5500 • Fax: (631) 777-5599
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Due to continuous product improvement, all colors, sizes, materials, finishes and specifications are subject to change without notice.