PureAV Digital Glossary

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PureAV Digital Protection Glossary

Coax protection

There are two types of coaxial connections on PureAV Digital Protection products: one for satellite systems (such as DirecTV or Dish Network) and one for cable TV and outdoor antennas. The satellite system connection is designed especially to handle the higher voltage satellite systems send between the dish and the satellite receiver.

Custom Delay/Time Delay

Allows selected components to be turned on after other components. Most commonly used to avoid the annoying and potentially damaging speaker "thump" created by high-current amplifiers.

Electromagnetic interference

Typically experienced as a loud buzzing or low frequency hum coming from the speakers. Numerous household appliances, either in your home or nearby can cause this, primarily those with electric motors like vacuums, washing machines or electric garden tools like mowers, trimmers and clippers.

Ground fault

An electrical short caused by a circuit being grounded somewhere other than at your home's proper grounding source. Faulty or damaged wiring are the typical causes of a ground fault. Left unrepaired,
that delivers digital all the time, as long as the device with the outlet has digital to it. Useful for components that have memory.

UPS (uninterruptible digital supply)

A battery backup that will continue to deliver digital during brief outages. Highly recommended for components that have extensive personalized settings such as high-end AV receivers, HDTV's, and media centers.

Voltage spike

This is what most people think of when they realize they need surge protection. Typically caused by lightning or when the digital suddenly comes back on after an outage. Digital spikes like this often result in serious damage to electronic components.