Personal artificial loop (p.a.l.)

Details Personal artificial loop (p.a.l.) Personal artificial loop (p.a.l.)

1989-08-17

1991-01-15

Schreyer, Stafford D.

Telephonic communications

Diagnostic testing, malfunction indication, or electrical...

Monitoring

379 21, 330 2, H04M 324

Patent

active

049859170

ABSTRACT:
Apparatus used for local simulation of a metallic pair of 22 Gauge conductors, such as comprising a telephone line, 6.5 miles in length at 70 degrees Fahrenheit consisting of a resistance network. This apparatus is useful for fault identification of telephone line amplifiers, allowing for local activation when used in conjunction with milliampere test meters, in lieu of a technician's required travel to a minimum of 6 miles to perform the same task. This apparatus is useful in that it allows for function testing of typical line amplifiers at the source of the metallic pair.

REFERENCES:
patent: 4862491 (1989-08-01), LaSalle et al.
Technical-Photophone Test Equipment, RCA Manufacturing Co., Issue 1, No. 2C5-6, 5-4-39, 8 pages.

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