| 摘要 |
PROBLEM TO BE SOLVED: To provide a subscriber station apparatus capable of operating with ordinary coaxial cables and connectors, by suppressing the amount of current flowing in a coaxial cable connecting an indoor device and an outdoor device. SOLUTION: Commercial power is supplied to an outdoor device 12. The outdoor device 12 converts the supplied commercial power into DC power, and superimposes a part of it onto an IF signal to supply to an indoor device 11 via a coaxial cable 14. The indoor device 11 separates DC powder from the IF signal by an IF unit 114, and supplies the separated DC power to a power supply unit 116. The power supply unit 116 supplies required power of a low voltage to respective units. COPYRIGHT: (C)2003,JPO
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