Federal Signal AD-26PD - Intercom, 12VDC, T/L Switch, Volume Control, Secondary Unit, Panel Mount
Federal Signal

AD-26PD

Alternate Item Number: ad-26p-atkinson-dynamics-panel-mount-intercom

UPC: 782979225355


Documents & Media
Installation InstructionsLine DrawingSpecification SheetWarranty

Contact for Pricing

Overview

The Federal Signal AD-26PD Intercom is a robust, panel‑mounted communication solution designed for industrial environments requiring reliable, low‑power operation. Powered by a 12 VDC voltage rating, this unit integrates seamlessly into existing panel‑mounted systems, offering a compact footprint that saves valuable space. The built‑in T/L (talk/listen) switch provides users with intuitive control over communication states, while the volume control knob allows for precise adjustment of audio levels to suit varying ambient conditions. As a secondary unit, the AD-26PD can be paired with primary intercom devices to expand network reach without compromising signal integrity. Ideal for facilities such as manufacturing plants, warehouses, and logistics centers, this intercom delivers clear audio transmission and durable performance. The Federal Signal brand, known for its engineering excellence, ensures that the AD-26PD meets stringent industrial standards, making it a dependable choice for critical communication needs. Key benefits include: low‑power consumption, easy panel mounting, user‑friendly controls, and seamless integration with existing intercom networks. Whether upgrading an existing system or installing a new one, the AD-26PD offers a cost‑effective, high‑quality solution that enhances operational efficiency and safety. Choose Federal Signal AD-26PD for reliable, high‑performance intercom communication in any industrial setting.
  • 12 VDC voltage rating for low‑power industrial use.
  • Panel mount design for compact installation.
  • Built‑in T/L (talk/listen) switch for user control.
  • Volume control knob for adjustable audio levels.
  • Secondary unit compatibility for expanded intercom networks.

Specifications

-31 to 150
DEG F
12
VDC
12 Vdc
V
4.38
IN
4.67
IN
6.5
in
Application
Indoor
Brand Name
Federal Signal
Frequency Response
320 Hz - 8.0 kHz
Height
4.38 IN
Length
4.67 IN
Mounting
Panel Mount
Mounting Type
Panel Mount
Operating Current
1.47 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
12VDC
Special Features
Brushed Aluminum Construction, Includes Gasket And Stainless Steel Hardware
Standard
UL Listed/cUL Listed
Standard
UL,cUL
Sub Brand
Atkinson Dynamics
Type
Panel Mount Intercom
Type
Intercoms
Voltage Rating
12 Vdc
Width
6.5 IN
Package Dimensions (L x W x H)
5.75 IN x 6.25 IN x 7.87 IN
Package Dimensions (L x W x H)
14.605 cm x 15.875 cm x 19.9898 cm
Package Weight (Imperial)
4.000 L
Package Weight (Metric)
1.814 kg
Intercom, 12VDC, T/L Switch, Volume Control, Pre-Amp Equipped, Remote Volume Control Equipped, Panel Mount

AD-26P-8-M44

Intercom, 12VDC, T/L Switch, Volume Control, Pre-Amp Equipped, Remote Volume Control Equipped, Panel Mount
PUSH BUTTON MODULE 2 ROUND BUTTONS

51011P2

PUSH BUTTON MODULE 2 ROUND BUTTONS

Frequently Asked Questions

What voltage does the AD-26P intercom require?

The AD-26P intercom operates on 12VDC.

What speakers are compatible with the AD-26P intercom?

The AD-26P intercom requires a matching Atkinson Dynamics Speaker, specifically models AD-SF-25, AD-SS-25, or AD-SO-25.

What are the operating and standby current draws?

The AD-26P has an operating current of 1.47 A and a standby current of 100 mA.

What is the operating temperature range for the AD-26P?

The AD-26P intercom can operate in temperatures ranging from -31°F to 150°F (-35°C to 66°C).

What are the physical dimensions of the AD-26P unit?

The AD-26P has a height of 4.38 inches, a width of 6.50 inches, and a depth of 4.67 inches.

What is the net weight of the AD-26P intercom?

The net weight of the AD-26P intercom is 3 lbs (1.36 kg).

Is the AD-26P intercom UL and cUL Listed?

Yes, the AD-26P intercom is UL and cUL Listed.

What is the AD-26PD model option?

The AD-26PD is a 12VDC Panel Mount Intercom with a Secondary Unit Option.

What are the key features of the AD-26P intercom?

The AD-26P is a heavy-duty, tamper-resistant panel-mount intercom for single-channel, two-way communications, featuring integrated volume control and a Talk/Listen switch.

What is the construction material of the AD-26P?

The AD-26P features robust brushed aluminum construction, including a Neoprene gasket and stainless steel hardware.

How to Install the AD-26PD Intercom

This guide provides step-by-step instructions for installing and configuring the AD-26PD panel mount intercom, ensuring proper wiring and setup for optimal performance.

Estimated time: 45m

Tools needed:

Screwdriver, Wire strippers, Multimeter

Supplies needed:

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

  1. Prepare the mounting panel

    Cut an opening and drill four mounting holes in the customer-supplied panel according to the specified dimensions. Ensure the holes are 0.191" in diameter to accept #8 mounting screws.

  2. Mount the intercom

    Insert the AD-26PD intercom into the prepared panel and secure it by installing screws in the four mounting holes. Ensure the intercom is level and firmly attached.

  3. Connect power and audio wires

    Connect the power wires labeled 'PWR +' (black) and 'PWR -' (white) to the appropriate power source. For 120/240VAC models, connect the green/yellow wire labeled 'EGND' to earth ground. Connect the audio wires labeled 'SPK' (white/brown) and 'COM' (white) to the local speaker/microphone.

  4. Connect additional audio lines

    If applicable, connect the audio wires labeled 'AUD' (black or green) and 'COM' (white) to the corresponding wires on other intercom units in the system. For models with the '-M44' option, connect the 'REM SPK' (black) and 'COM' (white) to a remote speaker.

  5. Install optional resistor

    If desired, 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 and power on

    Double-check all connections for accuracy and ensure that the power source is connected. Power on the intercom and test functionality to confirm proper operation.

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.