pair gain

(redirected from Pair gain system)

pair gain

The number of additional wire pairs that may be served by applying some technology to existing telephone lines (wire pairs). For example, with the installation of digital loop carrier equipment at the telco office and at the customer site, one cable pair can be turned into two phone lines. Two cable pairs can be turned into many more lines using T1 and other technologies. Every channel bank, digital loop carrier and DSLAM is a pair gain system. See channel bank, digital loop carrier and DSLAM.
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Communication equipment supplier Telspec plc has been awarded a contract from Telkom South Africa for the supply of TelMax pair gain systems.
Both companies previously placed an order for Telspec's TelMax digital pair gain systems in order to provide 62,500 extra subscriber lines in a pilot trial.