The 4-wire Data Standalone Isolator Unit, Model 7501-53, provides high voltage isolation between an exterior dedicated four-wire data line and data transmitting / receiving equipment located inside the substation.
The installation kit consists of an isolator card mounted inside a compact enclosure, a cable, and mounting hardware. The enclosure is molded from fiberglass, making it a lightweight, flame retardant container of high dielectric strength. Its fiberglass body limits the possibility of many kinds of infiltration while providing reliable isolation from external ground potentials.
The standalone unit is shipped with a 10’ PVC insulated 6-pair CMAW cable for connection to the CO’s incoming cable.