UTP lightning protection schematics
Friday, December 30th, 2005First of all examine APC (American Power Conversion) LAN surge protector. It is removed from some APC UPS.
The circuit is very simple. Diodes D1-D4 and D6-D9 are IN4006. The D5 diode is more interesting. It is 1.5KE6.8CA. This is special diode: 1500 WATT PEAK POWER TRANSIENT VOLTAGE SUPPRESSOR.
Note J3. On PCB it is small gap […]