User Manual

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1 Description
(1) Three functions, support USB-TTL USB-232 USB-485.
(2) Compatible Windows Linux Wince operating system.
(3) With a 500mA fuse protection circuit to prevent shorting and over current burning.
(4) The indicator lights indicate the working status of the device in red, yellow and green. COM
port selects USB (yellow light) is always on, data reception RX (red light) flashes, data
transmission TX (green light) flashes.
Small size, high stability, easy to carry.
(5) Small size, high stability, easy to carry.
(6) Compatible with 3.3V/5V voltage input and output, can supply power to the MCU.
(7) Intelligent identification switch serial port mode, no need to manually switch, easy and
convenient.
2 Pin Description