47 lines
1.8 KiB
Plaintext
47 lines
1.8 KiB
Plaintext
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From: Anton C Shepps <telesci!ashepps@pyrnj.pyramid.com>
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Subject: The Lighter Side: An Unusual Story
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Date: 29 Nov 89 17:32:03 GMT
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Reply-To: "Anton C Shepps (Tony" <telesci!ashepps@pyrnj.pyramid.com>
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Organization: TeleSciences, Moorestown, NJ
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AN UNUSUAL TELEPHONE SERVICE CALL
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This story was related by Pat Routledge of Winnepeg, ONT about an unusual
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telephone service call he handled while living in England.
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It is common practice in England to signal a telephone subscriber by
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signaling with 90 volts across one side of the two wire circuit and
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ground (earth in England). When the subscriber answers the phone, it
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switches to the two wire circuit for the conversation.
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This method allows two parties on the same line to be signalled
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without disturbing each other.
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This particular subscriber, an elderly lady with several pets called
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to say that her telephone failed to ring when her friends called and
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that on the few occations when it did manage to ring her dog always
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barked first. Torn between curiosity to see this psychic dog and a
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realization that standard service techniques might not suffice in this
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case, Pat proceeded to the scene. Climbing a nearby telephone pole
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and hooking in his test set, he dialed the subscriber's house. The
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phone didn't ring. He tried again. The dog barked loudly, followed
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by a ringing telephone.
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Climbing down from the pole, Pat found:
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a. Dog was tied to the telephone system's ground post via an iron chain
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and collar.
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b. Dog was receiving 90 volts of signalling current.
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c. After several jolts, the dog was urinating on ground and barking.
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d. Wet ground now conducted and phone rang.
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Which goes to prove that some grounding problems can be passed on......
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P-80 Systems 304-744-2253
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