42 lines
2.3 KiB
Plaintext
42 lines
2.3 KiB
Plaintext
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Note : Not the The one "How to build a Black Box" This one is "Social
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enigenerred.2" (And Mispelled)
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This Bulletin Re-posted from the original OSUNY courtesy of
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===============\\ //=================
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======CAPTAIN TRIPPS==========
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You should check your phone to determine if there is a BLACK BOX connected to
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it. These are no-no's and should be removed immediately.
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To determine if one of these is connected simply open the phone and look for
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the two wires coming in from the outside (usually red and green). If one of
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these wires has a 36-volt zener diode connected "in series" with it, then you
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probably have a black box connected. This diode will also have a capacitor
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connected in parallel across it to pass the voice signals. It may also have a
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single pole switch in parallel so that it may be shorted out when not needed.
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The reason you should disconnect it is that when someone calls you, they are
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not billed until you pick up and the voltage at your phone falls from the normal
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48 V to 10 V. It's this drop in voltage which tells the calling phone to start
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billing. It would be wrong for you to keep this voltage at 36 volts and not let
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the phone company bill them for the call. The calling party's CO would just
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think that the phone rang for up to 1/2 hour. After that they will think
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something's wrong and bill anyway.
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You can tell the zener diode by its banded end's being connected to the more
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positive of the two lines. The capacitor will probably be mylar or ceramic with
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a value of 0.1 microfarad or thereabouts. It might also be an electrolytic
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capacitor of up to 1 microfarad with its + end connected to the banded end of
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the zener and the other end connected to the anode end of the diode.
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If the parts look like they were bought at Radio Shack, you probably have a
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black box and should remove it immediately so that your callers will be billed.
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Another way to test is to measure the voltage between the two wires outside the
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phone to see if it stays above 36 volts when you pick up the receiver.
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I hope the above is adequate to help you identify this heinous subterfuge used
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to deny the pursuit of free enterprise for our telephone company. This is all I
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have for now. Did it go over it ok?
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Call The Works BBS - 1600+ Textfiles! - [914]/238-8195 - 300/1200 - Always Open
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