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What is a REN (Ringer Equivalence Number)?

April 26, 2017equivalence ren ringer

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What is a REN (Ringer Equivalence Number)?

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REN (Ringer Equivalence Number) is the ringer load of your modem that is measured. According to the FCC the maximum ringer load for a telephone line is 5. However, this may be dependent on the local office, meaning it may be less than 5. Every telephone device has this REN and all RENs of devices on one line should not add up more than the maximum load. For the USA, the REN is measured to be 0.2B.