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Compact green circuit board with screw terminals, RCA jacks and a modular jack, wall-mountable

Viking Electronics

Viking Electronics AIB-1 Audio Isolation Board

SKU CH-CV5D-8RCR1 MPN AIB-1

An audio isolation board that eliminates ground-loop hum, strips talk-battery voltage and combines two sources into one line-level output for paging systems

  • TypeProject Lamp
  • SpecificationsAudio Isolation Board
  • Eliminates ground loop hum in paging systems
  • Removes talk battery voltage from paging stations
  • Combines two audio sources into one output
  • Daisy-chains speaker output to a second amplifier
  • Accepts line, speaker and telecom station inputs

Purpose and Audience

The Viking AIB-1 is an audio isolation board designed to remove ground-loop hum from paging and mass-notification systems. It accepts line-level, speaker-level or telecom station signals through screw terminals, an RCA jack or a modular jack and provides a clean line-level output on screw terminals and RCA. Installers can also use it to strip talk-battery voltage, combine two audio sources or daisy-chain a speaker output into a second amplifier.

Thermals Noise and Power

The board operates passively with no fan or active cooling, so it adds no audible noise to the installation. Because it draws no external power supply, its power consumption is negligible and it introduces no electrical noise of its own. The passive design means thermal output is effectively zero, allowing it to be mounted in enclosed cabinets or behind equipment racks without ventilation concerns.

Installation and Integration

Wall mounting is supported using the supplied foam tape or screws, giving flexibility for surface or cabinet placement. Multiple input connector types let the board connect directly to existing wiring without adapters, while the dual output terminals simplify feeding a second amplifier or recording device. The unit requires no configuration, software or external power, so it integrates into legacy or new paging systems without consuming rack space or AC outlets.

Highlights

  • Eliminates ground loop hum in paging systems
  • Removes talk battery voltage from paging stations
  • Combines two audio sources into one output
  • Daisy-chains speaker output to a second amplifier
  • Accepts line, speaker and telecom station inputs

Specifications

BrandViking Electronics
TypeProject Lamp
SpecificationsAudio Isolation Board
Shipping weight0.19 kg
Package size152 × 127 × 51 mm

Questions about this item

How do I mount the AIB-1 and connect the screw terminals for a paging system?

Mount the board on a wall using the supplied foam tape or screws. Connect paging sources and amplifiers to the screw terminals, RCA jack, or modular jack for line-level, speaker-level, or telecom station inputs and line-level outputs.

What ongoing maintenance does the AIB-1 audio isolation board require?

The AIB-1 is a passive audio isolation board with no moving parts or lamps, so it requires no scheduled maintenance or component replacement under normal paging system operation.

What signal level limits the AIB-1 first when a paging amplifier is driven continuously at high output?

The board accepts line-level, speaker-level, or telecom station inputs and provides a line-level output; sustained high speaker-level drive will hit the input handling or output line-level limit before any thermal issue arises.

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