Thermo Keytek ECATS with the E 502 b, for Telecom Testing. Includes the 10x700 or 9x720 microsecond surge generator for ITU k.17, k.20, k.21
Thermo Keytek E 502 B telecom surge module performs the 10x700 microsecond telecom surge to 6kV. It also satisfies the 9x720 telecom surge test. It requires the E103 controller in order to function.