Pair gain applique

Abstract From the Canadian patent

A pair gain interface arrangement for automatically connecting a telephone loop test unit and a pair gain test controller in response to the test unit being accessed by a field technician is inserted between the test unit and pair gain test controller. The interface scheme comprises a processor-based line monitoring mechanism coupled in circuit with the line circuit joining the test unit to the pair gain test controller. The line monitoring mechanism monitors the line circuit for voltage levels generated by the test unit when accessed by a field technician controls the interconnection of the test unit and the controller in accordance with the monitored voltage levels and returns status …