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eBay E49-400T20D E49-400T20D is an ultra-high cost-effective wireless module developed by Chengdu Ebyte. There are 4 operating modes. Each transmission mode has its own characteristics and can be applied to various application scenarios. E49-400T20D perfectly supports industrial-grade applications. Limit Parameters Main Parameters Performance Remarks Min. Max Power supply（V） 0 3.3 Voltage over 5.5V will causepermanent damage to the module Blocking power（dBm） – 10 Chances of burn is slim when modulesare used in short distance Operating temperature（℃） -40 80 Operating parameter Main Parameters Performance Remarks Min. Typ. Max. Operating voltage（V） 2.6 5 3.6 Communication level（V） 3.3 Operating temperature（℃） -40 – 80 Industrial design Operating frequency（MHz） 410 433 510 Support ISM band TX Current(mA) 75 Instant power consumption RX current（mA） 12 Sleep current（μA） 0.7 Software is shut down Max Tx power（dBm） – – 20.0 Receiving sensitivity（dBm） -116 -117 -117 Air data rate is 1.2kbps Air data rate（bps） 1.2k 2.4k 200k Controlled via user’s programming Main parameter Description Remarks Distance for reference 2.5km Test condition：clear and open area, antenna gain: 5dBi，antenna height: 2.5m，air data rate: 1.2kbps Sub-packet 54 Byte The maximum capacity of a single package is automaticallypacked after exceeding. Buffer 500 Byte Modulation GFSK Communication interface UART Package DIP Connector 2.54mm pin header Size 36*21mm Antenna SMA 50 ohm impedance E49-400T20S Main Parameters Value Remarks Min. Max Power supply（V） 0 5.5 Voltage over 5.5V will cause permanentdamage to module Blocking power（dBm） – 10 Chances of burn is slim when modulesare used in short distance Operating temperature（℃） -40 +85 – Main Parameters Value Remarks Min. Typical Max Operating voltage（V） 2.6 5.0 5.5 – Communication level（V） – 3.3 – For 5V TTL, it may be at risk of burning down Operating temperature（℃） -40 – 80 Industrial design Operating frequency（MHz） 410 433 510 Support ISM band TX Current(mA) – 91 – Instant power consumption RX current（mA） – 12 – – Sleep current（μA） – 0.7 – Software is shut down Max Tx power（dBm） – – 20.0 – Receiving sensitivity（dBm） -116 -118 -119 Air data rate is1.2kbps Air data rate（bps） 1.2k 2.4k 200k Controlled via user’s programming Main parameter Description Remarks Distance for reference 2.5km Test condition：clear and open area, antenna gain:5dBi,antenna height:2.5m，air data rate:1.2kbps FIFO 54 Byte Maximum capacity of single transmission Cache capacity 500 Byte – Modulation GFSK – Communication interface UART serial port – Package SMD – Connector 1.27mm – Size 26*16mm – Antenna IPEX/Stamp hole 50 ohm impedance
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