Federal Signal AD-57 - Intercom, 240VAC, T/L Switch, Volume Control
Federal Signal

AD-57

Alternate Item Number: ad-56-atkinson-dynamics-intercom

UPC: 782979204909


Documents & Media
Installation InstructionsLine DrawingSpecification SheetWarranty

Contact for Pricing

Overview

The Federal Signal AD-57 Intercom is a high-performance communication solution designed for demanding industrial environments. Operating at 240VAC, this unit delivers reliable audio transmission across extensive wiring networks. Its built-in T/L switch allows operators to toggle between telephone and line modes, providing flexibility for various communication scenarios. Integrated volume control ensures clear, audible signals even in noisy settings. The rugged construction meets industrial standards, offering protection against dust, moisture, and mechanical shock. Easy to install and maintain, the AD-57 supports seamless integration into existing intercom infrastructure, enhancing safety and coordination across facilities. Whether used in manufacturing plants, warehouses, or utility sites, this intercom provides dependable, crystal‑clear communication for personnel on the ground and in control rooms. Federal Signal’s reputation for quality and durability makes the AD-57 a trusted choice for organizations seeking robust, scalable intercom solutions.
  • Intercom system with 240VAC power
  • Integrated T/L switch for mode flexibility
  • Built‑in volume control for audible signals
  • Rugged industrial housing for durability
  • Easy installation and maintenance

Specifications

-31 to 150
DEG F
240
VAC
240VAC
V
5.03
IN
6.5
in
9.88
IN
Application
Indoor/Outdoor
Brand Name
Federal Signal
Enclosure
Type 4X
Frequency Response
320 Hz - 8.0 kHz
Height
9.88 IN
Length
5.03 IN
Mounting
Wall
Number Of Lines
One
Operating Current
0.127 AMP
Operating Temperature
-31 to 150 DEG F
Operating Voltage
240VAC
Series
AD
Special Features
Balanced Line Output
Standard
UL Listed/cUL Listed/CSA Certified/Marine Listed
Standard
CSA,Marine,UL,cUL
Sub Brand
Atkinson Dynamics
Type
Wall Mount Intercom
Type
Intercoms
Voltage Rating
240 Vac
Width
6.5 IN
Package Dimensions (L x W x H)
8.13 IN x 7.25 IN x 15.13 IN
Package Dimensions (L x W x H)
20.6502 cm x 18.415 cm x 38.4302 cm
Package Weight (Imperial)
10.700 L
Package Weight (Metric)
4.854 kg
Intercom, 240VAC, T/L Switch, Volume Control, Secondary Unit

AD-57D

Intercom, 240VAC, T/L Switch, Volume Control, Secondary Unit
Atkinson Dynamics Wall Mount Intercom, 240VAC, Call Button, Auxiliary Signal Ready - Available in 12VDC, 24VDC, 120VAC or 240VAC. Heavy-duty industrial intercom for indoor or outdoor applications. 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. CSA Certified. UL and cUL Listed.

AD-57A-3

Atkinson Dynamics Wall Mount Intercom, 240VAC, Call Button, Auxiliary Signal Ready - Available in 12VDC, 24VDC, 120VAC or 240VAC. Heavy-duty industrial intercom for indoor or outdoor applications. 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. CSA Certified. UL and cUL Listed.
Intercom, 240VAC, T/L Switch, Volume Control, Primary Unit, microphone ready

AD-57C-7

Intercom, 240VAC, T/L Switch, Volume Control, Primary Unit, microphone ready
Intercom, 240VAC, T/L Switch, Volume Control, Call Button

AD-57A

Intercom, 240VAC, T/L Switch, Volume Control, Call Button
Atkinson Dynamics Wall Mount Intercom, 240VAC, Call Button, Foot Pedal Ready - Available in 12VDC, 24VDC, 120VAC or 240VAC. Heavy-duty industrial intercom for indoor or outdoor applications. 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. CSA Certified. UL and cUL Listed.

AD-57A-2

Atkinson Dynamics Wall Mount Intercom, 240VAC, Call Button, Foot Pedal Ready - Available in 12VDC, 24VDC, 120VAC or 240VAC. Heavy-duty industrial intercom for indoor or outdoor applications. 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. CSA Certified. UL and cUL Listed.
Intercom, 240VAC, T/L Switch, Volume Control, Primary Unit

AD-57C

Intercom, 240VAC, T/L Switch, Volume Control, Primary Unit
AudioMaster Two-Way Intercom, Hazardous Location, UL and cUL CID2, Multi-voltage 24VDC or 120-240VAC

310X-MV

AudioMaster Two-Way Intercom, Hazardous Location, UL and cUL CID2, Multi-voltage 24VDC or 120-240VAC
Intercom, 120VAC, T/L Switch, Volume Control

AD-27

Intercom, 120VAC, T/L Switch, Volume Control
Intercom, 120VAC, T/L Switch, Volume Control, Foot Pedal Ready

AD-27-2

Intercom, 120VAC, T/L Switch, Volume Control, Foot Pedal Ready
Intercom, 120VAC, T/L Switch, Volume Control, Foot Pedal Ready, monitor Switch

AD-27-2W3

Intercom, 120VAC, T/L Switch, Volume Control, Foot Pedal Ready, monitor Switch
Intercom, 120VAC, T/L Switch, Volume Control, Secondary Unit, Extreme Conditions

AD-27D-4

Intercom, 120VAC, T/L Switch, Volume Control, Secondary Unit, Extreme Conditions
Atkinson Dynamics Wall Mount Intercom, 120VAC, Call Button, Auxiliary Signal Ready, Extreme Conditions - Available in 12VDC, 24VDC, 120VAC or 240VAC. Heavy-duty industrial intercom for indoor or outdoor applications. 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. CSA Certified. UL and cUL Listed.

AD-27A-3-4

Atkinson Dynamics Wall Mount Intercom, 120VAC, Call Button, Auxiliary Signal Ready, Extreme Conditions - Available in 12VDC, 24VDC, 120VAC or 240VAC. Heavy-duty industrial intercom for indoor or outdoor applications. 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. CSA Certified. UL and cUL Listed.

Frequently Asked Questions about Federal Signal

What certifications and standards do Federal Signal products comply with?

Federal Signal products are certified across multiple international standards, including UL (Underwriters Laboratories) in the USA, CSA (Canadian Standards Association), CE (European Community), UKCA (United Kingdom), EAC (Russia), and C-Tick (Australia and New Zealand). Their products meet rigorous safety and performance standards for industrial environments, with specific compliance in electrical equipment enclosures, functional safety, and environmental protection ratings.

What is Federal Signal's warranty policy?

Federal Signal offers a comprehensive limited warranty covering most products for 1-5 years from the date of delivery, with specific terms varying by product category. Mechanical sirens, beacons, speakers, and sounders typically receive 5-year parts and labor coverage, while electronic sirens and controllers generally have 2-year warranties. All warranties require return to the factory for service, and on-site services are not included. Certain components like domes, lenses, lamps, and batteries are specifically excluded from warranty coverage.

What industries and applications are Federal Signal products used for?

Federal Signal products are used across multiple critical industrial and municipal sectors for notification, communication, and safety systems. Their product lines cover essential applications including fire alarm systems, public address and telephony, outdoor warning systems, visual and audible signals, and emergency communication networks. Key industries served include manufacturing, municipal emergency services, industrial facilities, and infrastructure environments where clear, reliable communication and safety signaling are paramount.

What technical support does Federal Signal offer?

Federal Signal offers comprehensive technical support through their dedicated [email protected] email and direct phone line at +1 708.534.4756. Their support covers a wide range of notification and communication solutions, including technical assistance for products in public address, telephony, fire alarm, visual and audible signals, outdoor warning systems, and intercoms.

What are the main product lines offered by Federal Signal?

Federal Signal offers comprehensive notification and communication solutions across multiple product lines, including Visual Signals, Audible Signals, Telephony, Intercoms, Fire Alarm, Outdoor Warning Systems, Public Address, and Initiating Systems. Their product range is designed to provide clear communications and critical process notifications that enhance safety and compliance in industrial and public environments.

What are the key features of Federal Signal products?

Federal Signal products are comprehensive notification solutions designed to enhance safety and communication across industrial environments. Their key features include visual and audible signals, fire alarm systems, outdoor warning systems, public address capabilities, telephony, and intercoms. These products provide critical process notifications, ensure safety compliance, and offer advanced technologies like secure encrypted communication, cloud-based control systems, and customizable emergency response interfaces.

What environmental ratings do Federal Signal products have?

Federal Signal products offer robust environmental ratings across multiple standards, including UL 508A, CSA, NEMA, and IEC 60529. Their enclosures are rated for Type 1, 2, 3, 4, 4X, 12, and 13 environments, with IP66 protection, and can operate in temperatures ranging from -40°F to 266°F. These ratings ensure superior protection against dust, water, corrosion, and extreme conditions for indoor and outdoor industrial applications.

What accessories are available for Federal Signal products?

Federal Signal offers multiple accessories for their signaling products, including coupling kits, cable entry adapters, indicator rings, legend plates, and mounting brackets. Key accessories include E-Box endcap kits with M20 and M25 openings, U-Brackets for dual configurations, and color-coded indicator rings in black, blue, green, magenta, red, and yellow. Additional options like adapters for NPT connections and specialized mounting hardware are also available for their Global Series signaling platforms.

What communication protocols do Federal Signal products support?

Federal Signal supports multiple industrial communication protocols including PROFIBUS DP, PROFINET, EtherNet/IP, CANopen, and Modbus RTU. These protocols enable flexible network integration across various industrial automation environments, supporting both traditional fieldbuses and modern Ethernet-based communication standards.

How are Federal Signal products typically installed?

Federal Signal products are typically installed using professional mounting configurations that include wall brackets, base stations, and specialized mounting hardware. Depending on the specific product line—such as outdoor warning systems, visual signals, or audible signals—installation involves precise mounting options like wall-mount antenna brackets, base station radio packages, and modular component assemblies. Each product configuration includes specific mounting accessories like endcaps, adapters, and terminal blocks to ensure secure and compliant installation in industrial and safety-critical environments.