Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1984-10-15
1986-03-11
Schreyer, Stafford D.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
17917525, 324 66, H04B 346
Patent
active
045755884
ABSTRACT:
Universal telephone test apparatus is shown according to the preferred embodiment of the present invention as including first and second test jig apparatuses. The test jig apparatuses include in their most preferred form three light emitting diodes (LED's) for each pair of wires of a multiple wire pair cable. The test jig apparatuses may be electrically connected to the telephone electrical connection blocks allowing simultaneous diagnosis of all possible electrical connection conditions of each of the wire pairs of the cable. Additionally, the test jig apparatus may be electrically connected to telephone base cords by auxiliary jacks for simultaneous diagnosis of all possible electrical connection conditions of each of the wire pairs of the base cords. Further, auxiliary jacks are further provided for receiving individual wires for contact to selected pin sets for continuity and tone testing the wire pair. Furthermore, the test jig apparatus allows the testing of telephones at a single location by their electrically connection via the apparatus to the connection block. In its most preferred form, the jig apparatus further includes a simultaneous electrical disconnection and isolation member for preventing harmful electrical connection of the telephone to the battery. Additionally, in its most preferred form, the jig apparatus includes a signalling switch for flashing the LED's for the purposes of signalling between remotely located test jig apparatuses.
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