The SignalTEK® II Fiber Optic Qualification Tester (ID‑150054 remote; ID‑150058 exchange tool set) is a rugged, handheld unit that verifies network cabling to IEEE 802.3ab Gigabit standards over both copper and fiber. With built-in copper/fiber adapters, it performs pin/pair mapping, active and passive link testing, as well as Ethernet traffic simulation—all in one compact kit. It’s ideal for VoIP, CCTV, data, and high-speed networks, with the ability to test through switches without disconnection.