
Federal Signal
AD-26PC-1
Alternate Item Number: ad-26p-atkinson-dynamics-panel-mount-intercom
UPC: 782979225331
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Overview
- Tamper-resistant housing for heavy‑duty environments.
- Dual voltage support: 12VDC, 24VDC, 120VAC 50/60Hz.
- Integrated volume control and Talk/Listen switch for easy operation.
- Single‑channel, two‑way communication with matching Atkinson speaker models.
- UL and cUL listed, ensuring safety and reliability.
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 | 50/60Hz |
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 |
Series | Atkinson Dynamics |
Special Features | Brushed Aluminum Construction, Includes Gasket And Stainless Steel Hardware |
Standard | UL,cUL |
Standard | UL Listed/cUL Listed |
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 |

AD-56P
Atkinson Dynamics Panel Mount Intercom, 24VDC - Heavy duty tamper resistant intercom. Single channel, two-way communications. Integrated volume control and Talk/Listen switch. Requires matching Atkinson Dynamics speaker (Model AD-SF-25, AD-SS-25 or AD-SO-25). Available in 12VDC, 24VDC and 120VAC 50/60Hz. UL and cUL Listed.Frequently Asked Questions
What is the AD-26P intercom's primary function?
The AD-26P is a heavy-duty, tamper-resistant panel-mount intercom designed for single-channel, two-way communications. It includes integrated volume control and a Talk/Listen switch.
What is the operating voltage for the AD-26P?
The AD-26P panel mount intercom operates on 12VDC.
What are the operating and standby currents?
The AD-26P has an operating current of 1.47 A and a standby current of 100 mA.
What speakers are compatible with the AD-26P?
The AD-26P requires a matching Atkinson Dynamics Speaker, such as models AD-SF-25, AD-SS-25, or AD-SO-25.
What is the operating temperature range?
The AD-26P 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?
The AD-26P has a height of 4.38 in, a width of 6.50 in, and a depth of 4.67 in.
What materials are used in the AD-26P's construction?
The AD-26P features robust brushed aluminum construction, a Neoprene gasket, and stainless steel hardware for durability.
Is the AD-26P intercom certified?
Yes, the AD-26P panel mount intercom is UL and cUL Listed.
What is the net weight of the AD-26P?
The net weight of the AD-26P intercom is 3 lbs (1.36 kg).
What is the AD-26PC model option?
The AD-26PC is a 12VDC Panel Mount Intercom with a Primary Unit Option (C).
How to Install the Atkinson Dynamics Panel Mount Intercom AD-26P
This guide provides step-by-step instructions for installing and configuring the Atkinson Dynamics AD-26P panel mount intercom, ensuring proper wiring and setup for effective communication.
Estimated time: 45m
Tools needed:
Screwdriver, Wire strippers, Multimeter
Supplies needed:
Mounting screws, Terminal connectors, 1K, 1W resistor (optional)
- Prepare the mounting location
Cut an opening and drill four mounting holes in the customer-supplied panel according to the dimensions specified in the installation manual.
- Mount the intercom
Insert the panel mount intercom into the prepared opening and secure it by installing screws in the four mounting holes. Ensure the intercom is level and firmly attached.
- Connect power and audio wires
Connect the power wires labeled 'PWR +' and 'PWR -' 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' and 'COM' to the local speaker/microphone.
- 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.
- Verify connections
Use a multimeter to verify that all connections are secure and that the power supply is functioning correctly before powering on the intercom.
- Test the intercom
Power on the intercom and conduct a test call to ensure that audio is transmitted and received clearly. Adjust volume controls as necessary.
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.
