TII

TII Network Technologies specializing in telecom network protection and management products, including station protectors, network interface devices, DSL protectors, filters and splitters and power and data-line protectors, and a multi-service residential gateway, as well as custom design solutions. TII has been a leading supplier of overvoltage surge protectors since its founding in 1964.

Overvoltage surge protection is mandated in the United States by the National Electrical Code ("NEC") to be installed on subscriber telephone lines to prevent injury to users and damage to their equipment due to surges caused by lightning and other overvoltages.