A power line
broadband carrier communication module networking test
system of a built-in programmable attenuator comprises a
power module, a
broadband power-line carrier
route module, a
processing unit and networking units; the
processing unit is connected with the
broadband power-line carrier
route module, the broadband power-line carrier
route module is connected with one networking unit through a shielding
radio frequency line, the rest networking units are in
cascade connection with other networking units for networking through other shielding
radio frequency lines, and the
power module is connected with the networking units; the networking units are provided with multiple carrier modules, each carrier module is connected with a
single chip microcomputer, and programmable attenuators which can conduct controlling through the carrier communication method of the programmable attenuators are arranged in the networking units, so that the replacement of the carrier module can be convenient, the
system setting is not affected, the sizes of attenuation values and
carrier signal route directions of communication nodes can be controlled, computer adaptive networking is achieved,
client programs such as an
ammeter or street lamp control or smart home can be written in the
single chip microcomputer, and network tests used for various applications are achieved.