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A 40V power supply is needed for ISDN devices without power supply that are used in TE mode. Do I need a power supply in order to connect a telephone system to the sirrix card?

April 26, 2017Devices ISDN mode needed power supply Te Used

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A 40V power supply is needed for ISDN devices without power supply that are used in TE mode. Do I need a power supply in order to connect a telephone system to the sirrix card?

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No, telephone system installations usually have an own power supply.