Description
Managing remote access to your paging system or digital announcer shouldn't require extra power supplies, complicated wiring, or worry about unauthorized users breaking in. The Viking RAD-1A is a line-powered remote access device that lets authorized users dial in and take control of one-way paging amplifiers, digital announcers, and other audio programs — all secured behind a programmable access code.
The RAD-1A answers on the first ring and stays out of the way until it's needed. Separate 600-ohm audio and telephone line outputs make it easy to connect to paging amps like Viking's CPA-7B or PA-2A, phone systems, dictation equipment, or even broadcast audio sources like radio or church programs. Disconnection is automatic on CPC, call timeout, silence timeout, or busy signal — or the caller can simply dial #7 to end the session. A status LED gives instant visual feedback, turning off whenever audio is present so you always know what's happening at a glance.
Because it runs entirely off telephone line power, there are no batteries to replace and no external power adapter to manage. Non-volatile memory keeps all your programmed settings intact even through a power interruption, making this a true set-it-and-forget-it solution for schools, churches, businesses, and security monitoring installations.
Our Expert Take: The RAD-1A is a smart fit any time you need centralized, dial-in control of a paging or announcement system across multiple locations without adding infrastructure. The programmable 2-hour call timer and 1–99 second silence timer are particularly useful for unattended audio monitoring setups — the unit will disconnect itself if a call runs too long or goes silent, keeping your phone line free. If you're already running Viking paging amplifiers like the CPA-7B or PA-2A, this integrates cleanly as a remote control front-end without requiring a separate controller.
Key Features
- Programmable 6-digit security code and 6-digit access code to prevent unauthorized access
- Separate 600-ohm audio and telephone line outputs for connection to paging amps, digital announcers, or phone systems
- Answers on the first ring; disconnects on CPC, call timeout, silence timeout, busy, or by dialing #7
- Programmable 2-hour call timer and 1–99 second silence timer for automatic disconnection
- Status LED turns on when unit is active and turns off to indicate presence of audio
- Auxiliary dry contact closure output activates whenever the unit's output is active
- Provides a 500ms hookswitch flash to access additional features without hanging up and redialing
- Alternate screw terminal connection for phone line output
- Non-volatile memory — no batteries required
- Telephone line powered — no external power supply needed
Technical Specifications
- Power: Telephone line powered (24VDC / 20mA minimum)
- Audio Loss (Through Unit): 1 dB
- Relay Contact Ratings: 0.5A @ 125VAC / 1A @ 30VDC
- Connections: (2) RJ11 modular jacks, 7-position screw terminal strip
- Dimensions: 5.25″ x 3.5″ x 1.75″ (133mm x 89mm x 44mm)
- Operating Temperature: 32°F to 90°F (0°C to 32°C)
- Humidity: 5% to 95% non-condensing
- Shipping Weight: 2.5 lbs (1.13 kg)