
Federal Signal
TELB-120
Alternate Item Number: telc-telcom-telephone-extension-ringer-device
UPC: 782979203001
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Overview
- 4-inch vibrating bell for audible call notification
- Activated by analog telephone ringing voltage (40-150VAC, 16-60Hz)
- Requires local 120VAC power
- 98 dBa signal output at 10 feet (108 dBa at 1 meter)
- Durable zinc die-cast housing with gray powder coat enamel
- Type 1 enclosure for protection
- CSA Certified and UL Listed for indoor use
- Ideal for high ambient noise industrial environments
Specifications
0.104 | A |
108 | dBa |
120 | VAC |
5.1 H x 4.53 W x 4.73 D | IN |
98 | dBa |
Amperage | 0.104 A |
Application | Indoor |
Brand Name | Federal Signal |
Color | Black |
dBa at 10ft | 98 dBa |
dBa at 1M | 108 dBa |
Enclosure | Type 1 |
Loudness | 98 DB |
Mounting | Surface |
Operating Temperature | 32D to +112DF (0D to +44DC) DEG F |
Size | 5.1 H x 4.53 W x 4.73 D IN |
Special Features | Bell Signals An Incoming Call |
Standard | CSA Certified/UL Listed For Indoor Use |
Sub Brand | TelCom |
Type | Telephone Extension Ringer Device |
Voltage Rating | 120 VAC |
Package Dimensions (L x W x H) | 7.83 IN x 5.75 IN x 6.25 IN |
Package Dimensions (L x W x H) | 19.8882 cm x 14.605 cm x 15.875 cm |
Package Weight (Imperial) | 3.200 L |
Package Weight (Metric) | 1.452 kg |

TELH-120
TelCom Telephone Extension Ringer Device, Horn Signals Incoming Calls - Available in 120VAC. Activated by ringing voltage (analog telephone only). 100 dBa at 10 feet (110 dBa at 1 meter). Type 1 enclosure. CSA Certified. UL Listed for indoor use.Frequently Asked Questions
What is the TELC-120 product?
The TELC-120 is a TelCom® Telephone Extension Ringer Horn and Strobe Combination that signals incoming calls on an analog telephone system.
What voltage does the TELC-120 operate on?
The TELC-120 operates on 120VAC power.
What type of telephone system is compatible?
The TELC-120 is specifically designed for use with an analog telephone system. It is activated by the ringing voltage.
What ringing signal voltage does it detect?
The device detects a ringing signal voltage range of 40-150VAC and a frequency range of 15.8-60Hz.
What is the sound output level of the horn?
The horn produces a 100 dBa signal at 10 feet and 110 dBa at 1 meter.
What is the strobe flash rate?
The strobe on the TELC-120 flashes at a rate of 80 times per minute.
What is the operating temperature range?
The TELC-120 operates within a temperature range of 32°F to 112°F (0°C to 44°C).
What are the dimensions of the TELC-120?
The TELC-120 has a height of 5.10 inches, a width of 4.53 inches, and a depth of 5.23 inches.
What is the humidity range for operation and storage?
The humidity range for storage and operating is 0 to 85% R.H., noncondensing.
How is the TELC-120 connected to the telephone network?
It connects using a modular telephone line cord (RJ11) to an existing jack or a customer-supplied duplex jack.
How to Install the TELB-120 Telephone Extension Signal
This guide provides step-by-step instructions for installing and configuring the TELB-120 Telephone Extension Signal device.
Estimated time: 45m
Tools needed:
Screwdriver, Wire strippers, Multimeter
Supplies needed:
Mounting screws, Modular line cord, AC power cord
- Select the mounting location
Choose a suitable vertical and rigid surface, such as a wall or post, for mounting the TELB-120.
- Mount the device
Secure the TELB-120 to the selected surface using user-supplied mounting screws, ensuring it is level and firmly attached.
- Connect the modular line cord
Plug one end of the user-supplied modular line cord into the TELB-120 and the other end into an unused RJ-11C jack. If no unused jack is available, use a 'T' adaptor to connect in parallel with an existing phone.
- Connect the AC power cord
Attach the supplied three-conductor AC power cord to a properly grounded 120VAC outlet.
- Test the device
After installation, test the TELB-120 to ensure it is operating correctly. Verify that it activates with the telephone ringing signal.
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.