N20 is a high-performance low-consuption module developed on Qualcomm platform. It supports NB-IoT, eMTC, and EGPRS.With rich hardware interfaces, this module facilitates further development. It adopts LCC package which is perfect for mass production. The compact size can meet most requirements for small communications modules. N20 is well applicable to low-rate low-power consumption IoT terminals, such as water and gas metering and sharing devices.

IoT NetworksThe enabling technology for the emerging Internet of Things (IoT) is Low Power Wide Area Networks (LPWAN), which is a family of new communications technologies that allow devices to communicate small volumes of data over a long distance with low power. For this reason, they are perfect for battery-operated sensors because they facilitate small bursts of measurements sent frequently, while the low power profile ensures that sensors can retain a long battery life. This is a significant advantage over current cellular network technology for machine-to-machine communications.
Network technologies that fall under the LPWAN umbrella include LoRa and SigFox, both of which operate in unlicensed radio spectrum, and NB-IOT, which is a cellular technology that uses a small part of the current cellular spectrum.
Long Range Wide Area Network (LoRaWAN) is an LPWAN specification from the nonprofit IoT group LoRa Alliance for battery-operated devices that provides secure, bidirectional communications between remote sensors and centralized network servers.
LoRa has gained significant acceptance in the industry with multiple network providers offering public networks across North America, Europe and Asia. Availability of these public networks means that utilities do not need to operate their own networks and can use existing networks in a similar manner to current cellular service.
In some regions, cellular operators are rolling out LoRa networks as an IoT specific complement to their cellular offering. Other cellular operators are pursuing NB-IOT, which has completed standardization and is intended to be the cellular solution for LPWAN requirements. These LPWAN networks will be the driver for more economic, near-real-time monitoring solutions, which will enable water utilities to execute on smart water strategies.
FEATURESEmbedded A7 processor
GNSS positioning, NB-IoT network modes
Optional audio
Indisutrial-grade performance
Compact design
Best choice for energy meter reading, smart parking, asset tracking, environmental monitoring and other fields

Low speed, low power consumption, extended coverageTechnical Parameter
DATA SHEET
Item Description & Technical Parameter
Product Parameter Brand TOPBAND
Packaging Type 68 PIN LCC Package, easy to solder
Size (mm) 25.8*23.8*2.8 (mm)
Band Full-duplex / Semi-deplex,
Weight 3.5g
Module solution MCU Core ARM-CORTEX-A7
Band 1.3GHZ 256Kb L2 Cache
RAM/ROM 512Mb/1Gb (1Gb/2Gb optional)
Transmission speed EGSM900:+33dBm (Power Class 4)
DCS1800:+30dBm (Power Class 4)
EDGE900MHz:+27dBm (Power Class E2)
EDGE1800MHz:+26dBm (Power Class E2)
LTE:+23dBm(Power Class 3)
Data Transmission Transmission speed GPRS:Max85.6Kbps (DL/UL)
EDGE:Max 236.8Kbps (DL/UL)
LTE Cat M1: 300kbps (DL/375Kbps (UL)
LTE Cat NB1: 32kbps (DL)/72Kbps (UL)
Network Protocol TCP/UDP/FTP/HTTP/HTTPS/MQTT/PSM
Electrical parameters Power Supply Volage 3.3-4.3V, Typical V. 3.8V
Standby Currrent LTE Cat M1: 1.7mA(@DRX cycle=1.28s)
LTE Cat NB1: 2.7mA(@DRX cycle=1.28s)
Peripheral interface Antenna connection characteristic 2G/4G Antenna, GNSS Antenna,
50Ω Characteristic impedance
UART 2*UART interface, Max speed upto 4 Mbps
UIM 1*UIM interface, can be adaptive 1.8v/2.85v
USB 1* USB 2.0
ADC 2*15-bit ADC, Voltage Detection range:0.1-1.7V
SPI 1*SPI, Max speed upto 50mHz (only support Maste Mode)
I2C 1*I2C, can control external sensor
PCM 1*PCM, for digital audio transmission
SDIO 1*SDIO, Can control 4-way WLAN interface
GPIO 3*GPIO, 1*SIM_SELECT Pin
Working Environment Temperature range ≤ 15W
Humidity non-condensation, relative humidity<95%
Certificates CCC, CTA, SRRC, CE, FCC,
Recommended Application field Intelligent water management, Wireless meter reading terminal,
Shared bicycle / electric car / umbrella, smart farm, Urban manhole cover,
IoT communication terminal
Application
Remote meter reading
Smart citySmart fire alarm systemSmart street lighting systemSmart parkingSmart manhole coverAsset and logistics tracking,Environmental and agricultural monitoring
Company

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