| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an antenna control system and an antenna control system extension unit that enable a sufficient power supply to terminal devices and an extended maximum length of control cables. <P>SOLUTION: The antenna control system which has one or more daisy-chainable terminal devices 11 for controlling antennas of radio base stations, a control apparatus 12 for transmitting control signals to the terminal devices 11 to control the terminal devices 11 and control the antennas, and supplying power to the terminal devices 11, and control cables 13 used to connect the control apparatus 12 and one terminal device 11 and two terminal devices 11, and which controls the antennas in conformity with the AISG standards includes an antenna control system extension unit 2 connected to a daisy-chaining output connector 11b of the terminal devices 11 to supply power to the terminal devices 11 via the output connector 11b. <P>COPYRIGHT: (C)2013,JPO&INPIT |
