User's manual
Guangzhou Andea Electronics Technology Co., Ltd.
20/18
http://www.gzandea.com
The foll owing two wavef
orms a lso illustrat e existence of
electromagnetic interference in the environment:
Interference source analysis
(1) Power adapter: laptop power supply, display power supply, LED light
power supply, surveillance camera power supply, electric car charger, power
supply of other electric equipment.
(2) Card reader with the same frequency band: access card reader, desktop
card issuer.
(3) Motor equipment.
Troubleshooting
Turn on the Noise Detection function, and switch off the power of the
interference source one by one. At the same time, observe changes of the
interface waveform, in order to determine the interference source.
7.
Technical Support
Download link for development data and testing
Address 1:
https://git.oschina.net/LiZhenSong/rfidlib_SDK
Address 2:
http://www.gzandea.com/information
User's manual
Guangzhou Andea Electronics Technology Co., Ltd.
5/18
http://www.gzandea.com
It Can be used directly through the computer USB interface.
2.5.
Power interface and switch
The device uses the standard DC 2.1 power socket. Each device is not only
equipped with a DC 12V / 2A power adapter for connecting devices, but self-equipped
with a power switch button, as shown below:
Power switch and interface
3.
Device connection
3.1.
Communication connection
The device connects to PC through the USB communication interface:
