VK-FXI-1A - Viking Electronics FXO- FXS Paging Adapter | Aztek Computers
29+Years
SKU: UY0OIH1W3D |  Mfg. Part: VK-FXI-1A  | UPC: 615687224771  | 
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VK-FXI-1A - Viking Electronics FXO- FXS Paging Adapter

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$128.98  $174.12
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Product Overview

- Viking universal paging interface- Select: FXO (loop start), FXS (ring trip) or paging port (VOX relay) interface mode- No power supply required in FXS interface mode- Up to 6 units can be powered from one adapter in the FXO or VOX mode- 30V DC talk battery for interfacing with FXO or unused phone system line input/trunk port- Floating 600 ohm paging output with volume control- Normally open or closed relay for external paging amp activation or interfacing the paging amp with an external background music source- 800 Hz pre-announce page tone (on/off)- Compatible with 24 to 48 volt FXS operation- Calling party control (CPC) detection for immediate disconnect- Busy signal detect disconnect- 2.5 to 5 second VOX silence disconnect timer- Programmable VOX trigger sensitivity- 16 or 36 second default disconnect timer- Screw terminal block connections- Wall mount housing: (2) #6x3/4 panhead screws included - Power: 12-24V DC @ 100mA, 120V AC/12V DC @ 500mA, UL listed adapter included (not required in FXS mode)- Dimensions: 111mm x 76mm x 36mm (4.38” x 2.97” x 1.38”)- Shipping Weight: .48 kg (1.06 lbs)- Environmental: 0°C to 32°C (32°F to 90°F) with 5% to 95% non-condensing humidity- Relay Contacts: 30V DC@1A, 110V DC@0.3A, 125V AC@0.5A- VOX Minimum Audio Signal to Activate Relay: -30dbm minimum / -26dbm minimum @ 1KHz with VOX sensitivity switch at normal / lower positions- VOX Time Out Disconnect: 2.5 or 5 second- Default Time Out Disconnect: 16 or 36 seconds- Talk Battery: 30V DC VKFXI1

Expert Overview

The Viking Electronics VK-FXI-1A is a universal paging interface designed for integrating paging systems with existing business phone infrastructure. This adapter allows IT professionals to connect a paging amplifier to a phone system via FXO (loop start), FXS (ring trip), or a dedicated paging port (VOX relay) interface mode. It provides a 30V DC talk battery for FXO or unused phone system line inputs and features a floating 600 ohm paging output with volume control. The unit includes a normally open or closed relay for external paging amplifier activation and an optional 800 Hz pre-announce page tone. Disconnect features include Calling Party Control (CPC) detection, busy signal detection, and programmable VOX silence or default disconnect timers. This solution is suitable for businesses needing to add or upgrade paging capabilities without replacing their entire phone system, offering flexible integration options.

Product Details

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  • Viking Electronics
  • VK-FXI-1A
  • B00BQKSE1K
  • 615687224771
  • New
  • 1.1 lbs
  • 4 X 7 X 4
  • Jul 31, 2026
  • Feb 29, 2020
Product Identifiers: Brand: Viking Electronics • Part #: VK-FXI-1A • UPC: 615687224771 • ASIN: B00BQKSE1K • Category: Business Phones

Frequently Asked Questions

What phone system interfaces are compatible with this paging adapter?

The adapter is compatible with FXO (loop start), FXS (ring trip), and paging port (VOX relay) interface modes. It supports 24 to 48 volt FXS operation.

Is an external power supply always required for operation?

No, a power supply is not required when operating in FXS interface mode. For FXO or VOX modes, a 120V AC/12V DC UL listed adapter is included, and up to six units can be powered from one adapter.

What is the purpose of the integrated relay contacts?

The integrated relay contacts, which can be normally open or closed, are used for activating an external paging amplifier or for interfacing the paging amplifier with an external background music source.

What are the available disconnect timer options?

The adapter offers a 2.5 to 5 second VOX silence disconnect timer and a programmable default disconnect timer of either 16 or 36 seconds. It also features Calling Party Control (CPC) detection and busy signal detect disconnect.

VK-FXI-1A - Viking Electronics FXO- FXS Paging Adapter

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Reviews for Viking Electronics VK-FXI-1A

$128.98