Chengdu Ebyte Electronic Technology Co.,Ltd. E34-DTU (2G4H20) user manual
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Chengdu Ebyte Electronic Technology Co,;Ltd 14
11.Note
1.
Please keep the warranty card of the equip ment wh ich includes the factory number (and important technical
parameters) and is important for user's future maintenance and new equipment.
2.
Transceiver during the wa rranty period, if the quality of the product itself rather than man -made da mage or
lightning and other natural disasters caused by damage, enjoys free warranty; please do not repair by yourself, the
problem and please contact with our company when problem occurring, we offer the first -class after-sales service.
3.
Please do not operate the transceiver in some fla mmab le p laces such as coal mines or near e xplosive at mospheres
(such as detonators).
4.
Please use the appropriate DC powe r supply, high frequency interference ab ility, s ma ll ripple, and enough load
capacity are required; it’s better to have over current, over vo ltage protection and lightning protection and other functions
to ensure that transceiver working properly.
5.
Please do not use it in the working environment beyond the transceiver environ mental characteristics , such as
high temperature, humidity, low temperature, strong electromagnetic fields or dust larger environment.
6.
Please do not continuously keep transceiver to transmit in full capacity, or the transmitter might be damaged.
7.
Please connect the ground with the external ground of the power supply (such as PC, PLC, etc.) , otherwise it is
easy 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 distance
from the antenna is better than 2 meters, so as to avoid harm, please do not tou ch the antenna when transmitting.
9.
Wire less data transceiver has different co mmun ication distance in different environ ments, co mmunication
distance is influenced by temperature, humid ity, obstacle density, obstacle volume and electro magnetic environment; in
order 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 the
installation mode of the antenna. You can send mail to [email protected] for support.
11.
When choosing power supply, it is reco mmended to keep at least 50% current le ft and the ripple must not e xceed
100mV.
Содержание 2G4H20
Страница 1: ...E34 DTU 2G4H20 ...
