9 Corp. Unveils Ground Transient Terminator Technology

November 22, 2004 by Jeff Shepard

ECM Electronics and 9 Corp. (St. Charles, IL) announced the new Ground Transient Terminator (GTT) technology, which is designed for security system control panels to prevent unintentional triggering of alarms from power-induced lightning strikes, ground transients, and device switching of heavy equipment within homes and commercial facilities - causing them to malfunction or fail altogether.

The GTT device can be safely placed between case ground and equipment in order to eliminate ground transients. The GTT is a passive filter that works by opposing changes in electron flow on the ground wire, slowing the damaging rise and fall time of a transient voltage waveform rather than clipping it off, controlling frequency rather than amplitude.

Unlike conventional suppression techniques using metal-oxide varistor, gas tube or silicon diode technology, the GTT technology incorporates a patented circuit with no moving parts or sensitive electronics, and as a result, does not pose any threat to intrinsic safety ground. The GTT is the first suppression device to be recognized by Underwriters Laboratories (UL) to be used directly on the ground line of electronic equipment to prevent disruptions in operation.