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Multiplex Distribution System for Multichannel Pager Communications.

Authors
Bowser-GC; Pulford-WM
Source
NTIS: PB/86-137130 :42 pages
Link
NIOSHTIC No.
10004889
Abstract
This report covers the development and prototype installation of the multiplex distribution system, which gives private communications capability to simple pager phones at minimum cost. This was accomplished by adding an applique to conventional pager-type telephones to allow them to communicate and interact with a multiplex distribution unit that serves as a miniature private branch exchange. Through this mechanism, the pager phones are able to receive and generate private calls without the expense of a complete multiplex telephone unit at every location. A special commercial telephone interface unit was also developed that allows outsiders to call directly to any pager in the mine and allows mine personnel to call any 1 of 10 preset outside telephone numbers.
Publication Date
19830101
Document Type
CP; Final Contract Report;
Fiscal Year
1983
NTIS Accession No.
PB86-137130
NTIS Price
A04
Identifying No.
OFR 119-85
NIOSH Division
PRC;
Source Name
NTIS: PB/86-137130
Performing Organization
Catalyst Research Corp.
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