test instrument for testing telephone communications lines; terminals for communications lines and fiber optic cables; post, pole and aerial mounted terminal housings; service wire closures; telephone line splicing apparatus; self-contained portable 100 pair telecommunications cable terminal apparatus, capable of providing shorts, grounds, terminations or tones to any selected pair of conductors in the cable; portable battery-operated telephone line test sets; telephone line number identification and tone sensing units; computer hardware and software for use in operating local area networks; test instrument and software for validating and revalidating cable assignment databases with a distribution mainframe and revalidating databases after cable repair, and establishing new computerized databases; communication cable repair test apparatus; microprocessor controlled telephone cable analyzers for use by operating telephone companies in measuring voltage resistance and capacitance; cable anchorage, terminal, coupling and grounding units, all for use primarily with communication cables and systems