Federal Signal AD-27 Atkinson Dynamics 120VAC Wall Mount Intercom
The Federal Signal AD-26, AD-27, AD-56 and AD-57 Atkinson Dynamics Wall Mount Intercoms. Designed for single-channel, two-way indoor and outdoor communication applications, Wall-Mount Intercoms feature integrated volume control, TALK/LISTEN switch, corrosion resistant cast aluminum housing with rugged powder coat finish (Type 4X enclosure), reliable 25-watt speaker, and balanced line output.
Federal Signal AD-26, AD-27, AD-56 and AD-57 heavy duty units are UL and cUL listed, CSA Certified and Marine rated; and available in 12VDC, 24VDC, 120VAC, or 240VAC 50/60Hz models.
Key features include:
- Available in 12VDC, 24VDC, 120VAC, or 240VAC 50/60Hz
- Heavy-duty industrial intercom for indoor/outdoor application
- Single-channel, two-way communications
- Integrated volume control and Talk/Listen switch
- Balanced line output
- 25 watt speaker
- Cast aluminum housing with rugged powder coat finish
- Conformal coated PCB
- Type 4X enclosure
- Marine Listed
- UL and cUL Listed
- Product Code: AD-27 Atkinson Dynamics
How to order (Specify Model):
1) AD-27 (120VAC, Wall Mount Intercom)
2) Add Optional Features: Example AD-27A
Optional Features:
- A: Call Button, Sends call tone to other intercoms on the same audio line
- C: Primary, controls Talk/Listen function of a Secondary unit
- D: Secondary, allows hands free operation, default Talk mode
- -2: Foot Pedal Ready, hands free operation of the Talk/Listen switch, pedal sold separately (ADFP)
- -3: Auxiliary Signal, remote call button activated contact closure to activate remote strobe for additional attention gathering*
- -6: Zoned System Remote, designed to be a remote unit in a zoned system. (Contact factory for zone design assistance)
- -7: Noise Canceling Microphone Ready, equipped with a jack for hand held microphone sold separately
- -8: Pre-Amp Equipped, pre-amp to power a remote speaker
- -M44: Remote Volume Control Equipped, equipped with volume control for remote speaker
*LP3 strobe sold separately
Note: Not all optional features are available for every model. Please consult factory to confirm model variation availability.
Model Configurations:
| Model | UPC Code | Description |
| AD-27 | 782979204732 | Intercom, 120VAC, T/L Switch, Volume Control |
| AD-27-2 | 782979205500 | Intercom, 120VAC, T/L Switch, Volume Control, Foot Pedal Ready |
| AD-27-2W3 | 782979206101 | Intercom, 120VAC, T/L Switch, Volume Control, Foot Pedal Ready, monitor Switch |
| AD-27-3 | 782979207108 | Intercom, 120VAC, T/L Switch, Volume Control, Auxiliary Signal Ready |
| AD-27-4 | 782979204800 | Intercom, 120VAC, T/L Switch, Volume Control, Extreme Conditions |
| AD-27-6 | 782979204893 | Intercom, 120VAC, T/L Switch, Volume Control, Zone System Remote |
| AD-27-7 | 782979204787 | Intercom, 120VAC, T/L Switch, Volume Control, Microphone Ready |
| AD-27-8 | 782979206149 | Intercom, 120VAC, T/L Switch, Volume Control, Pre-Amp Equipped |
| AD-27-8-M44 | 782979206163 | Intercom, 120VAC, T/L Switch, Volume Control, Pre-Amp Equipped, Remote Volume Control Equipped |
| AD-27A | 782979204749 | Intercom, 120VAC, T/L Switch, Volume Control, Call Button |
| AD-27A-2 | 782979206194 | Intercom, 120VAC, T/L Switch, Volume Control, Call Button, Foot Pedal Ready |
| AD-27A-3-4 | 782979206224 | Intercom, 120VAC, T/L Switch, Volume Control, Call Button, Auxiliary Signal Ready, Extreme Conditions |
| AD-27A-4 | 782979204930 | Intercom, 120VAC, T/L Switch, Volume Control, Call Button, Extreme Conditions |
| AD-27A-6 | 782979205463 | Intercom, 120VAC, T/L Switch, Volume Control, Call Button, Zone System Remote |
| AD-27A-7 | 782979204824 | Intercom, 120VAC, T/L Switch, Volume Control, Call Button, Microphone Ready |
| AD-27AC | 782979208259 | Intercom, 120VAC, T/L Switch, Volume Control, Call Button, Primary Unit |
| AD-27C | 782979204947 | Intercom, 120VAC, T/L Switch, Volume Control, Primary Unit |
| AD-27C-2 | 782979206378 | Intercom, 120VAC, T/L Switch, Volume Control, Primary Unit, Foot Pedal Ready |
| AD-27C-4 | 782979204961 | Intercom, 120VAC, T/L Switch, Volume Control, Primary Unit, Extreme Conditions |
| AD-27C-7 | 782979205494 | Intercom, 120VAC, T/L Switch, Volume Control, Primary Unit, Microphone Ready |
| AD-27C-M22 | 782979206392 | Intercom, 120VAC, T/L Switch, Volume Control, Primary Unit, Remote Monitor Toggle Switch |
| AD-27D | 782979204954 | Intercom, 120VAC, T/L Switch, Volume Control, Secondary Unit |
| AD-27D-4 | 782979204978 | Intercom, 120VAC, T/L Switch, Volume Control, Secondary Unit, Extreme Conditions |
| AD-27P | 782979208303 | Intercom, 120VAC, T/L Switch, Volume Control, Panel Mount |
| AD-27PA | 782979225393 | Intercom, 120VAC, T/L Switch, Volume Control, Panel Mount, Call Button |
| AD-27PC | 782979225409 | Intercom, 120VAC, T/L Switch, Volume Control, Panel Mount, Primary Unit |
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