Mine pager to public telephone interconnect system. Report of investigations, 1974
Technical Report
·
OSTI ID:7366771
The mine pager phone to public telephone interconnect system permits mine paging telephones to be interconnected with the public phone system, thereby providing improved emergency and off-hours communications. This interconnect device was first conceived and demonstrated in breadboard form by Industrial Hazards and Communications, Pittsburgh Mining and Safety Research Center, U.S. Bureau of Mines. The prototype unit described was designed and fabricated by Arthur D. Little, Inc., Electronic Systems Section, under BuMines contract H0122026, Services Related to BuMines Communications Programs. This contract was initiated under the Coal Mine Health and Safety program, and administered under the technical direction of the Pittsburgh Mining and Safety Research Center. (GRA)
- Research Organization:
- Bureau of Mines, Pittsburgh, Pa. (USA). Pittsburgh Mining and Safety Research Center
- OSTI ID:
- 7366771
- Report Number(s):
- PB-240097; BM-RI-7976
- Country of Publication:
- United States
- Language:
- English
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