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[Interface]:RF to GPRS


[Introduction]:E90-DTU (400SL22-GPRS) is a data transmission station from radio frequency to GPRS network server, which realizes the transparent data transmission between sub-1g and GPRS network. The sub-1g radio frequency transceiver is based on SEMTECH SX1262 radio frequency chip and supports LoRa spread spectrum technology.

Parameter Name The parameter value
Support Frequency Quad-frequency: GSM850, EGSM900,DCS1800, PCS1900 Module can automatically search frequency,Frequency selection can be set with theAT command,Conform to GSM Phase 2/2+
GPRS Connection characteristics GPRS multi-slot class 12 (default)
GPRS multi-slot class 1~12 (configurable)
GPRS mobile station class B
GPRS Data features GPRS data downlink transmission: up to85.6 KBPS,GPRS uplink data transfer: up to 85.6 KBPS,Coding formats: cs-1, cs-2, cs-3 and cs-4,Supports the PAP (password verification,protocol) protocol commonly used for PPP connections,Support for protocols commonly used for CHAP (query handshake authentication protocol) The built-in protocols: TCP/UDP/FTP/PPP/HTTP/NTP/MMS/SM TP/PING, etc.Support for unstructured supplementary data services (USSD)
The antenna interface SMAinterface, NET signal output, 50ohm characteristic impedance
Transmission Power Class 4 (2W): GSM850 and EGSM900
Class 1 (1W): DCS1800 and PCS1900
RF Characteristic parameters value
The air rate 2.4kbps,8 adjustable level (0.3、1.2、2.4、4.8、9.6、19.2、38.4、62.5kbps)
WOR role receiver,Can be configured as a receiver/sender
WOR cycle 2000ms,500ms~4000msIt can be configured as 500ms~4000ms
Transport mode Transparent Transmission
The module address 0~65535
working frequency 410.125MHz-493.125
Transmission power 22dBm
Receiving sensitivity -138dbm@0.3kbps
Baud rate 115200 bps
The antenna interface SMAInterface
Station systemparameters value
Flow loss value(typical value) 66.5mA@12V,Idle state, no data transmission
Working temperature -30℃~+70℃
Working voltage DC 8~28V
Size 108*75*37mm,Overall size (excluding antenna)
3GPP Frequency 1 Timeslot 2 Timeslot 4 Timeslot
CS-1 9.05kbps 18.1kbps 36.2kbps
CS-2 13.4kbps 26.8kbps 53.6kbps
CS-3 15.6kbps 31.2kbps 62.4kbps
CS-4 21.4kbps 42.8kbps 85.6kbps