The annunciator is located on the control panel and is used as an auditory warning. This annunciator sounds when the barrier utilizes EFO, is down for more than 5 seconds, or pressure is low in the HP [..]

Installation is the process by which the barrier or systems deployed and activated. This process varies greatly with the type or barrier and actuator employed by the system. Some VBS companies prefer [..]

The accumulator is an apparatus used to store energy. In the vehicle barrier industry, accumulators are used to accomplish Emergency Fast Operation. Also see, econolator.

Ameristar is a Norshield VBS partner. Ameristar is the leading manufacturer of ornamental fence. They have several systems that are Department of State K Rated, and fully integrate the Fibersensys sys [..]

Alternative Remittance System

ASTM is an open forum for the development of standards used around the globe. ASTM is currently developing some standards similar to the DOS K Ratings.

Barrier Data Link. This system is supplied by TAG and can integrate and connect all access control equipment through a networked system. Contact TAG for more information.

The bellows are protective covers over the cavity presented when a barrier is in the fully up position. It prevents personnel, debris, and trash from entering the cavity. This has become common on mos [..]

see Wedge Barriers.

An in-ground barrier system in which the blocking component(s) is one or more cylinders that rise to form an obstacle the road surface. The width of the bollard tube and the height are two factors tha [..]