The wavelength of fiber on side is 1310nm<br>The interface is defined as: RX/TX/AV/VCC/GND<br>RX is connected to CRSFTX of flight control, and TX is connected to CRSFRX of flight control<br>The AV on side is connected to AV signal output port of flight control, and VCC power supply voltage is 5.5V~26V<br><br>Power supply: 5.5V-26V: (2S-6S battery)<br>Power consumption: less than or equal to 5W<br>Communication interface: MX-SH1.0mm-5P: CRSF interface/CVBS video port<br>Fiber optic interface: FC: Communication distance: maximum 20KM<br>Note: The product indicator lights from top to bottom are: power light, fiber optic light, video light, data light; GND is ground wire, VCC is power supply, AV is video, TX is TTL signal output, and RX is TTL signal input.<br>Due to different batches, there may be differences in product appearance, color, and printed text, which not affect use.<br>Color: Green<br>Material: PC+Plastic<br><br>Package Contents:<br>1 * TX Module<br><br>Only above package content, other products are not included.<br>Note: Light reflection and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.