There are 100 (0-99) channels controlled by 2 buttons. Button left can
select single digit and button right fortens digit. Combination of tens
digit and single digit makes 99 channels totally. TX and RX can build
connection only when they are set to same channel parameters and
RX HDMI port outputs the corresponding A/V content.
4. IR remote control
This IR remote control is just used to set channel.
For example, set channel to be 99, just aim the IR remote
control to IR receiver and press number 9 and 9 again.
6 Connection
6.1 One-to-one connection