The MOD-12 combines AC and Tip/Ring protection for KEY/PBX systems into one attractive, compact assembly. This innovative design creates an automatic ground window, thus eliminating the problem of ground potential difference.
EDCO H-Series Protector Modules readily snap onto the MOD-12. Protection is expandable from one to 12 pairs in single-pair increments, and is field upgradable. In addition, test points are provided on each pair.