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E90-DTU(900SL22) Ebyte free sample tcxo 868MHz 915MHz 22dBm RS232 RS485 auto relay RSSI SX1262 LoRa Modem






[Introduction]:E90-DTU (900SL22) is a data transceiver with military-grade LoRa modulation technology. With multiple transmission modes, it works in the (850.125~930.125MHz) frequency band (Default 868.125MHz). The transceiver provides transparent RS232/RS485 interface and supports 8~. 28V voltage input.

Pin No. Name Function Description
1 DB-9 femal socket RS-232 interface Standard RS-232 interface
2 3.81 connecting terminal RS-485, power interface Standard RS-485 and screwing interface
3 PWR-LED Power indicator Red when powered-on
4 TXD-LED Transmitting indicator Yellow, it flashes when transmitting data
5 RXD-LED Receiving indicator Yellow, it flashes when receiving data
6 DC power interface Power interface Straight hole, outer diameter: 5.5mm, inner diameter: 2.5mm
7 DIP switch DIP switch Working mode control
8 Antenna interface SMA-K External thread hole.L: 10mm. 50Ω resistance.