Chengdu Ebyte Electronic Technology Co,;Ltd
E30-490T20D user manual
Copyright ©2012–2019
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Chengdu Ebyte Electronic Technology Co,;Ltd
2
OMMUNICATION RANGE IS TOO SHORT
1.Overview
1.1 introduction
E30-490T20D is based on originally imported SI4438
from Silicon Labs, with transparent transmission available, TTL
level output with air wake-up function, WOR (ultra-low power
consumption). They feature half duplex and DIP interface. 490M
features low frequency, long wave length and strong ability of
penetration and diffraction. They are applicable in the industrial
and living environment like a plant or indoors.
The module features FEC (Forward Error Correction)
algorithm, which ensure its high coding efficiency & good correction performance. In the case of sudden interference, it
can correct the interfered data packets proactively, so that the reliability & transmission range are improved
correspondingly. But without FEC, those data packets can only be dropped.
E30-490T20D strictly follows design standards of FCC, CE, CCC and meets various RF certification requirements
for exporting.
1.2 Features
Communication distance tested is up to 2.5km
Maximum transmission power of 100mW, software multi-level adjustable
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Support the global license-free ISM 490MHz band
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Support air date rate of 1kbps
～
25kbps
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Low power consumption for battery supplied applications
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Support 2.3V~5.2V power supply, power supply over 2.3V can guarantee the best performance
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