MK TX-3 User Manual download pdf (Page 13)

Appendix

Port Description

Power Battery Input Port，input voltage range: 11V~26V

Control Signal Input Port，for wireless video module channel selection and video input source

selection

Video Signal Output Port

 AV-OUT：Video Signal Output, including both video and iOSD information

 AV- GND：Video Signal Ground

 UART： transmit the wireless channel control signal to the wireless video transmitter (For

example AVL58)

 BATT+：it is equate to the Positive Voltage of Battery

 BATT-：it is equate to the Negative Voltage of Battery

Video Input Port，2 input sources are available, and the default setup is AV1

 AV1：Video Input Source 1

 AV2：Video Input Source 2

 POWER：11~13V, supply power for video input source with the maximum current of 1A

 GND：Ground

Micro-USB Port：Connects the iOSD with PC for firmware upgrade

CAN-Bus : Communication of the iOSD with autopilot system through CAN-Bus

LED

LED indicator for power

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MK TX-3 User Manual Page 13