Chengdu Ebyte Electronic Technology Co,;Ltd E32-DTU (433NW20) user manualCopyright ©2012–2019,Chengdu Ebyte Electronic Technology Co,;Ltd 20easy to burn out the communication interface; do not plug the interface with power supplying.8. When testing, please connect the antenna or 50 Ω load, otherwise transceiver will be damaged easily ;the distancefrom the antenna is better than 2 meters, so as to avoid harm, please do not touch the antenna when transmitting.9. Wireless data transceiver has different communication distance in different environ ments , communicationdistance is influenced by temperature, humid ity, obs tacle density, obstacle volume and electro magnetic environment; inorder to ensure stable communication, it is recommended to reserve at least 50 % of the communication distance.10. When communication d istance is not perfect, it is reco mmended to imp rove the antenna quality and theinstallation mode of the antenna. You can send mail to support@cdebyte.com for support.11. When choosing power supply, it is reco mmended to keep at least 50% current left and the ripple must not exceed100mV.12.Important statement1. CDEBYTE reserves the right of final interpretation and modification of all the contents of this manual.2. As the hardware and software products continuously improving, this manual may subject to change without notice,please refer to the latest version.3. Everyone is responsible for protecting the environ ment: to reduce the use of paper, we only prov ide electronicdocuments of the English manual, if necessary, please go to our official website to download; In addition, for specialrequirements, we agree to offer certain amount of documents according to order quantity, not every data transceiver aresupplied with one manual, please understand;