ROF communication remote machine and ROF system

A ROF communication remote machine, comprising a first packaging module and a second packaging module, wherein,

• the first packaging module comprises a wavelength division multiplexer, a first branch connected to the wavelength division multiplexer, and a second branch, and the second branch is connected to the second packaging module through a first port and a second port;
• wherein
• the first branch is configured to convert a downlink optical signal received from a local machine by the wavelength division multiplexer into a downlink electrical signal, and send the downlink electrical signal to the second packaging module;
• the second branch is configured to receive the downlink electrical signal fed back via the first port, convert it into a downlink optical signal, and send the downlink optical signal to the local machine through the wavelength division multiplexer, and is configured to receive an uplink electrical signal sent by the second port and convert the uplink electrical signal into an uplink optical signal, and then send the uplink optical signal to the local machine through the wavelength division multiplexer;
• the second packaging module is configured to amplify the power of the downlink electrical signal, send and feed back the downlink electrical signal to the first port, and receive the uplink electrical signal through an antenna, and send the uplink electrical signal to the second port;
• wherein, the second branch includes a feedback second branch comprising a first selection switch and an uplink second branch comprising a second selection switch, wherein,
• the first selection switch configured to selectively switch on a connection between the first port and the wavelength division multiplexer, or switch on a connection between the first port and the second selection switch, or the first selection switch is configured to switch on or off the connection between the first port and the second selection switch;
• the second selection switch is configured to selectively switch on a connection between the second port and the wavelength division multiplexer, or switch on a connection between the second selection switch and the first selection switch.