Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Testing of subscriber loop or terminal
Patent
1992-09-18
1996-06-18
Chin, Stephen
Telephonic communications
Diagnostic testing, malfunction indication, or electrical...
Testing of subscriber loop or terminal
H04M 124
Patent
active
055286623
ABSTRACT:
Disclosed is a self-contained battery powered remotely controlled strapping and interconnection device for providing various selected interconnections and terminations of telephone lines or line pairs to which it is attached in order to establish testing configurations comprising a plurality of multi-contact latching relays selectably operable through a plurality of shift register devices under the control of an on-board processor responsive to dual tone multi-frequency instructional command signals remotely applied to a pair of lines. Plug-in expansion modules and battery charger modules are provided.
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Chin Stephen
Communications Technology Corporation
Kim Kevin
LandOfFree
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