| 摘要 |
The logging tap disclosed and claimed herein provides for the direct connection of a plurality decoder units having a plurality of digital-to-analog converter inputs to a plurality of digital telephone signal lines in telephone logging applications without requiring a separate wide band, shielded cable from the bridging tap device to the decoder unit. The logging tap comprises a decoder unit supported on a planar substrate and having a plurality of digital-to-analog converters, an input terminal for coupling each of the input digital telephone signals to a corresponding DAC circuit and an output terminal for coupling the output analog signal of the corresponding DAC circuit to a recording device; A type 66 block is provided for bridging at least one of the plurality of digital telephone lines coupling a PBX to a subscriber's digital telephone devices. An adapter is provided for connecting each of the ID pins of the first row of the type 66 block to a corresponding input terminal of the DAC circuit and each of the ID pins of the second row of the type 66 block to a corresponding output terminal of the DAC circuit.
|
