130 volts is used by telcos on analog loops that are extremely far out from the CO to compensate for voltage drop. This is most common in OPX circuits. In this area, the CO technicians refer to the loop extenders used as "Lorrain units". You really need to get this resolved because this voltage will most certainly continue to blow ports on this (or any) KSU.


Ed Vaughn, MBSWWYPBX