Pair Gain
978-613-2-16612-8
6132166122
88
2010-08-04
34.00 €
eng
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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. In telephony, pair gain is a method of transmitting multiple POTS signals over the twisted pairs traditionally used for a single traditional subscriber line in telephone systems. Pair gain has the effect of creating additional subscriber lines. This is typically used as an expedient way to solve subscriber line shortage problems by using existing wiring, instead of installing new wires from the central office to the customer premises. The term was invented in the middle 20th century by analogy with earlier use of gain to extend telephone local loops far from the telephone exchange.
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