NB IoT Wireless Transceiver RS232 RS485 RS232 RS485 868MHz E840 DTU NB 02 SMA Connector AT Command RF Module in Telecom Parts from Cellphones Telecommunications

NB IoT Wireless Transceiver RS232 RS485 RS232 RS485 868MHz E840 DTU NB 02 SMA Connector AT Command RF Module in Telecom Parts from Cellphones Telecommunications
NB IoT Wireless Transceiver RS232 RS485 RS232 RS485 868MHz E840 DTU NB 02 SMA Connector AT Command RF Module in Telecom Parts from Cellphones Telecommunications
NB IoT Wireless Transceiver RS232 RS485 RS232 RS485 868MHz E840 DTU NB 02 SMA Connector AT Command RF Module in Telecom Parts from Cellphones Telecommunications
NB IoT Wireless Transceiver RS232 RS485 RS232 RS485 868MHz E840 DTU NB 02 SMA Connector AT Command RF Module in Telecom Parts from Cellphones Telecommunications
NB IoT Wireless Transceiver RS232 RS485 RS232 RS485 868MHz E840 DTU NB 02 SMA Connector AT Command RF Module in Telecom Parts from Cellphones Telecommunications
NB IoT Wireless Transceiver RS232 RS485 RS232 RS485 868MHz E840 DTU NB 02 SMA Connector AT Command RF Module in Telecom Parts from Cellphones Telecommunications

Product Specification

Brand Name: CDEBYTE

Model Number: E840-DTU(NB-02)

Interface: RS232 RS485

Condition: New

Application: computer other

Frequency : Band5 Receiving:869MHz~894MHz Transmitting:824MHz~849MHz

Max.Transmitting power: 23dBm ± 2dB

Baud Rate: 1200~115200, default: 9600

Network Protocal: CoAP,UDP,IPv4, LwM2M etc.

Size: 82*84*25mm

Description:

E840-DTU(NB-02) NB-IoT RS485 RF Transceivers (8)
 

NB-IoT Wireless Transceiver RS232 RS485 RS232 RS485 868MHz E840-DTU(NB-02) SMA Connector AT Command RF Module

 

RF Parameter Value Remark
Frequency  Band5

Receiving Frequency:869MHz~894MHz

Transmitting Frequency:824MHz~849MHz

 

Hardware Features Value Description
Antenna Type SMA-K       
Interface RS485 / RS232      Electrical isolation, with RS485/RS232 interface
Baud Rate 9600bps      Baud rate: 1200~115200, default: 9600
Max. Transmitting power 23dBm ± 2dB      
Sensitivity -129dBm ± 1dB      
Dissipative Flows(typical)

PSM: 3.6uA

Idle: 2mA @DRX=1.28s 

      
Working voltage DC 8V~28V      
Working Temperature -40℃- 70℃      
Storage Temperature -40℃- 85℃      
Size 82×84×25mm      

 

Software Features Description
Wireless Rate SingleTone,subcarrier 15kHz and 3.75kHz:21.25kbps (downstream), 15.625kbps (upstream).
Wokring Mode

Power-saving mode(PSM)

Idle mode(Idle)

Connection mode(Active)

Set Command Abidy by 3GPP TS27.007 V14.3.0 and Quectel intensified AT command.
Network Protocal Supporting multiple protocal, such as CoAP,UDP,IPv4 , LwM2M etc.
Device ID Use AT command to configure Device ID.

E840-DTU(NB-02) NB-IoT RS485 RF Transceivers (9)E840-DTU(NB-02) NB-IoT RS485 RF Transceivers (10)E840-DTU(NB-02) NB-IoT RS485 RF Transceivers (11)E840-DTU(NB-02) NB-IoT RS485 RF Transceivers (12)E840-DTU(NB-02) NB-IoT RS485 RF Transceivers (13)E840-DTU(NB-02) NB-IoT RS485 RF Transceivers (14)E840-DTU(NB-02) NB-IoT RS485 RF Transceivers (29)

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