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What is a FXO-C 2W*8-6 Coin Card?

April 26, 2017card coin

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What is a FXO-C 2W*8-6 Coin Card?

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The FXO-C 2W*8-6 Coin Card has eight wire ports, providing a 600-ohm terminating impedance. Card consists of backplane interface circuitry, serial EEPROM for card identification and adjustment parameters storage, metering pulse interface extension between Coin Box Office (CO) and coin phone on the CO side, and eight voice line interface circuits. Each line interface circuit consists of a codec, a hybrid circuit (2 to 4 wire converter), line feed circuitry and relays to control modes of operation.