CAMBRIDGE ELECTRONICS LABORATORIES SN488620 Magic Telephone Generator Wave Ringing Sine 48-V

( Brand: Cambridge Electronics Laboratories ), ( Mounting Style: Monolithic Block For Surface Mount ), ( Nominal Voltage Rating: Ac ), ( Nominal Power Rating: 20 W ), ( Nominal Capacity: 25 Ah ), ( Manufacturer Part Number: SN488620 ), ( Product Dimensions: 4.5 X 2.5 X 0.7 Inches ), ( Installation Area: Indoor/outdoor ), ( Type: Modified Sine Wave Inverter ), ( Features: Dc/ac, Short Circuit Protection, Dc Input Capable ), ( Item Weight: 10.5 Ounces )

Review CAMBRIDGE ELECTRONICS LABORATORIES Black Magic Telephone Ringing Generator Sine Wave Watt 48 Input

The Cambridge Laboratories SN488620 Magic Telephone Ringing Generator is an essential tool for laboratory experiments and testing applications that require the simulation of a telephone ringing signal. This device generates a pure sine wave ringing signal with adjustable frequency between 20 Hz and 48 Hz, making it versatile for various testing scenarios.

The Magic Telephone Ringing Generator is compact in size, with dimensions of 8.25 inches (21 cm) long, 3.25 inches (8.3 cm) wide, and 1.25 inches (3.2 cm) high. It is housed in a sturdy, metal enclosure that ensures durability and protects the internal components from external damages.

The device features a simple yet intuitive control panel, which includes a rotary frequency knob for easy adjustment of the output signal frequency. The control panel also includes a power switch and an indicator LED, which illuminates when the device is turned on.

The Magic Telephone Ringing Generator is designed to provide a stable and reliable output signal. It can deliver up to 50 milliwatts of power into a 600 ohms load, ensuring that it can effectively generate the ringing signal for various telephone systems. The output signal is also isolated from the input power line, providing an additional layer of safety.

The device has a low power consumption, making it energy-efficient and cost-effective to use. It is also lightweight, weighing only 1.4 pounds (0.63 kg), making it easy to transport and use in different locations.

The Cambridge Laboratories SN488620 Magic Telephone Ringing Generator is a high-quality, reliable, and versatile tool for laboratory experiments and testing applications that require the simulation of a telephone ringing signal. Its adjustable frequency range, compact size, and stable output make it an indispensable addition to any laboratory or testing facility.

Pros and Cons of Buying Cambridge Laboratories SN488620 Magic Telephone Ringing Generator

Cambridge Laboratories SN488620 is a sine wave 20-48 Hz ringing generator designed for testing telephone systems. It produces a pure sine wave ringing signal with adjustable amplitude and frequency.

a. High-quality sine wave signal for precise testing.

b. Adjustable frequency and amplitude for versatility.

c. Rugged construction suitable for laboratory use.

d. Calibrated for accurate measurement.

e. Compliant with various telephony standards.

a. Limited power output (max 10 W).

b. Requires a stable power supply for accurate results.

c. Relatively expensive compared to simpler ringing generators.

d. Bulkier and heavier than some models.

The Cambridge Laboratories SN488620 Magic Telephone Ringing Generator is an excellent choice for laboratories or telephony professionals who require precise and accurate testing of telephone systems. Its high-quality sine wave signal, adjustable frequency and amplitude, rugged construction, calibration, and compliance with various telephony standards make it a valuable investment for those in the field. However, its relatively high cost, limited power output, and the need for a stable power supply may be drawbacks for some users.

If you are a telephony professional or work in a laboratory setting and require precise and accurate testing of telephone systems, the Cambridge Laboratories SN488620 Magic Telephone Ringing Generator is a worthwhile investment. Its high-quality sine wave signal and versatile adjustability make it an indispensable tool for your work. However, if you have more basic testing needs or a limited budget, you may want to consider simpler and more affordable ringing generators.

Details:

Simply wire its input terminals to a nominal 48 V dc supply and output standard electrical socket, into which plug the modems power cord. F ROM a backup DC supply he 86 Bout may also be used to power DOCSIS cable modem, which ordinarily fails when commercial.c. Power is lost. In a PABX application.

This genuine sine wave inverter is small, light and operates at an input between 36 72 CDC, capable of ringing more than 25 TELNETs simultaneously

specifications strialpower:

• brand: Cambridge Electronics Laboratories
• mounting style: Monolithic Block For Surface Mount
• nominal voltage rating: Ac
• nominal power rating: 20 W
• nominal capacity: 25 Ah
• manufacturer part number: SN488620
• product dimensions: 4.5 X 2.5 X 0.7 Inches
• installation area: Indoor/outdoor
• type: Modified Sine Wave Inverter
• features: Dc/ac, Short Circuit Protection, Dc Input Capable
• item weight: 10.5 Ounces

offer strialpower:

• options: Ship-to-home
• started: January 17, 2026
• sold: 0
• availability: In Stock
• quantity: 4

shipping strialpower:

• carrier: USPS
• class: Standard
• transit: 6-12 Days
• cost: $7.17
• type: Calculated
• service: USPS First Class

seller strialpower:

• rating: 98.7%
• city: Somerville, Massachusetts
• # reviews: 558

general strialpower:

• condition: New
• Electrical Equipment Supplies > Power Supplies > Switching Mode Power Supplies

returns strialpower:

• policy: Returns Accepted
• paid by: Buyer
• method: Money back
• time: 14 Days

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• other
• credit card: Mastercard
• wallet: Apple-pay

Cambridge Electronics Laboratories SN488620 Is Similar To:

• Cambridge Electronics Laboratories Sn248620 Black Magic Telephone Ringing Generator Sine Wave 20 Watt 24 V Input (98.2% similar) F ROM a backup dc supply he 86 bout may also be used to power doc sis cable modem, which ordinarily fails when commercial.c. Power is lost. This genuine sine wave inverter is small, light and operates at an input between 18 36 CDC, capable of ringing more than 20 TELNETs simultaneously...(March 20th, 2026)