I have a standard 25 pair phone cable connected to a 66 block on each end. When I test the line with a 9 volt battery, I get a constant 9 volts. When I terminate one end, I get continutity. When I hook up equipment to this line, no matter if it's phone or some other signal, it seems to flap - that is, it's up for 7 seconds, down for 7 seconds. Obviously, this won't work for communication. Could a PBX be sending a "beacon" on this line that would disrupt communications?
Iolair MacWalter Network Engineer
Red Flag Submitted
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