After an RP series telepresence system upgrades from V100R001C01 to V100R001C02, its remote control does not respond.
Connect the USB connector of the IR control cable to the infrared USB port (shown in Figure 5-9) on the codec.
Figure 5-9 USB ports on the codec
In V100R001C02, one of the USB ports on the codec is dedicated to the USB connector of an IR control cable. If the remote control issue occurs, the USB connector of the IR control cable may not be connected to the infrared USB port.