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

AD-57C

Alternate Item Number: ad-57-atkinson-dynamics-intercom

UPC: 782979205333


Documents & Media
Installation InstructionsLine DrawingSpecification SheetWarranty

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Overview

The Federal Signal AD-57C is a rugged, high-performance primary intercom unit designed for demanding industrial environments. Built to operate at a 240 VAC voltage rating, it delivers reliable, clear communication across a wide range of applications. The integrated T/L switch allows users to toggle between talk and listen modes quickly, while the built-in volume control ensures that audio levels remain optimal in noisy settings. This primary unit is engineered with durable materials and robust construction to withstand harsh conditions, making it ideal for factories, warehouses, and other industrial facilities. With its straightforward installation and operation, the AD-57C provides a dependable communication backbone that enhances safety, coordination, and productivity on the shop floor. Manufactured by Federal Signal, the product carries the brand’s reputation for quality and reliability, and its SKU AD-57C identifies it within the company’s catalog of advanced communication solutions.
  • 240 VAC voltage rating
  • Integrated T/L switch for easy control
  • Built-in volume control for clear audio
  • Durable primary unit designed for industrial use
  • Manufactured by Federal Signal (SKU AD-57C)

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 Temperature, Maximum
150 F
Operating Temperature, Maximum
65.5556 C
Operating Temperature, Minimum
-31 F
Operating Temperature, Minimum
-35 C
Operating Voltage
240VAC
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
VIDEO OUT STA W/KYPD W/ID CARD RDR

M21351K-A

VIDEO OUT STA W/KYPD W/ID CARD RDR

Frequently Asked Questions

What is the operating voltage for the AD-57 model?

The AD-57 model operates on 240VAC 50/60Hz.

What is the operating temperature range for the intercoms?

The intercoms can operate in temperatures ranging from -31°F to 150°F (-35°C to 66°C).

What is the speaker rating for the intercoms?

All models, including the AD-57, are equipped with a 25-watt speaker.

What are the physical dimensions of the intercom?

The intercom has a height of 9.88 in, a width of 6.50 in, and a depth of 5.03 in.

What is the frequency response of the AD-57?

The AD-57 model has a frequency response range of 320Hz to 8.0Khz.

What is the net weight of the intercom unit?

The net weight of the intercom unit is 9 lbs (4.08 kg).

What is the operating current for the AD-57?

The AD-57 model has an operating current of 127 mA and a standby current of 83 mA.

What are the main features of the AD-57 intercom?

The AD-57 is a heavy-duty industrial intercom for indoor/outdoor, single-channel, two-way communication, featuring a 25-watt speaker and integrated volume control.

What certifications do these intercoms have?

These intercoms are UL and cUL listed, CSA Certified, and Marine rated.

What type of enclosure does the AD-57 use?

The AD-57 features a corrosion-resistant cast aluminum housing with a rugged powder coat finish, classified as a Type 4X enclosure.

How to Install the AD-57C Intercom System

This guide provides step-by-step instructions for installing and configuring the AD-57C intercom system, ensuring proper mounting, wiring, and initial setup.

Estimated time: 45m

Tools needed:

Screwdriver, Wire strippers, Multimeter

Supplies needed:

Mounting screws, Terminal connectors, 1K, 1W resistor (optional)

  1. Select the mounting location

    Choose a flat and rigid surface for mounting the AD-57C intercom. Ensure the location is accessible and complies with safety regulations.

  2. Mount the intercom

    Secure the intercom to the selected surface using the provided mounting screws through the mounting ears. Ensure it is level and firmly attached.

  3. Connect the power supply

    Plug the intercom into a nearby power source. For AC models, connect the black wire to the hot terminal, the white wire to the neutral terminal, and the green wire to earth ground.

  4. Wire the audio connections

    Connect the audio inputs in parallel using appropriately sized audio cables. Ensure that the connections are secure and insulated.

  5. Install the optional resistor

    If necessary, install the included 1K, 1W resistor across the audio lines to reduce noise. Only one resistor is needed for the entire system.

  6. Verify connections

    Use a multimeter to check all connections for continuity and proper voltage levels. Ensure there are no short circuits.

  7. Test the intercom system

    Power on the intercom and test the functionality by pressing the talk switch and speaking into the microphone. Ensure all connected units can communicate.

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.