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Overview
GM520

GM520 is a wireless communication module based on LTE Cat.4 standard and designed for M2M and IoT applications.

Under the LTE standard, it can support up to 50Mbps uplink rate and 150Mbps downlink rate and can be backward compatible with existing WCDMA/GSM networks, ensuring that it can work normally in remote areas lacking 3G and 4G networks. Satisfy customers' application requirements for high-cost performance and low power consumption.

GM520 module supports multiple network protocols (TCP/UDP/FTP/HTTP/MQTT/PAP/CHAP/PPP) and multiple functions (remote wake-up, FOTA, FILE, etc. ), and can provide PCM/AUDIO/USB/UART/SDIO/I2C/SPI/USIM/RMII/ RGMII/ADC and other rich hardware interfaces to meet different needs.

In response to the key needs of industries such as data transmission and CPE, this module can be expanded to support analog voice functions, as well as hardware interfaces such as Ethernet, SDIO, and PCIe. It is a 4G communication tool for the data transmission and routing industry.

Highlights
LCC+LGA Form Factor
LTE Cat.4
29×32mm Package
8-wires UART
22nm Chipset embedded
USB 2.0
4G/3G/2G global band
FOTA
Embedded TCP/UDP
-40℃ ~ 85 ℃
FTP/HTTP/HTTPS
OpenLinux
Technical Specification
General Features
* LCC 80Pins+LGA 64Pins Form Factor
* Pin-to-Pin with Mainstream form factor
* Dimensions: 29mm × 32mm× 2.4mm
* Weight: About 4.0g
* Frequency Band : LTE FDD/LTE TDD/WCDMA/GSM
* GNSS:Optional
Electrical & Sensitivity
* Transmit Power:
--LTE: 23 ±2.7dBm (Power Class 3)
--WCDMA : 24 +1/-3dBm (Power Class 3)
--GSM900 : 33±2dBm (Power Class 4)
--GSM1800: 30±2dBm (Power Class 1)
* Rx Diversity : support
* Power Supply :
--3.4V -- 4.2V(3.8V is recommended)
Environmental
* Operation temperature: -30°C to +75°C
--Extreme Operating temperature: -40°C to +85°C
* Storage temperature: -40°C to +85°C
* Humidity: 5%~ 95%
RF Band
* L1B
1.LTE FDD: B1,B2,B3,B4,B5,B7,B8,B28
2.LTE TDD: B40
3.WCDMA: B1,B2,B4,B5,B8
4.GSM: B2,B3,B5,B8
* E1B
1.LTE FDD: B1,B3,B7,B8,B20,B28
2.LTE TDD: B38,B40,B41
3.WCDMA: B1,B8
4.GSM: B3,B8
Data Features
* LTE FDD
--Uplink 50Mbps / Downlink 150 Mbps
* TD-LTE
--Uplink30Mbps / Downlink 130Mbps
* UMTS
--HSPA+ 21Mbps DL
--HSUPA 5.76Mbps UL
--WCDMA 384Kbps UL/384Kbps DL
* GSM
--EDGE 236.8Kbps UL / 236.8Kbps DL
--GPRS 85.6Kbps UL / 85.6Kbps DL
Interfaces
* USB 2.0 (Max. 480Mbps)
* UART ×2
* SIM (1.8/3.0V)
* ADC (12-bit precision)
* SPI
* I2C
* SDIO
* LED indication
* PCM& AUDIO
* Reset & Power-on
* Main & Diversity(Optional) antenna
* RMII/RGMII(RMII: 1.8V/3.3V; RGMII: 1.8V)
Applications
* Support FOTA/USB/UART update
* Support Android 4.x/5.x/6.x/7.x/8.x/9.x RIL driver
* Support Windows 7/8/10
* Support Linux 2.6 and above
* Support TCP/UDP/PPP/FTP/HTTP/HTTPS/MQTT
* Support low-power applications
* ECM/RNDIS/PPP
* Support 3GPP TS27.005, 27.007
* Support GOSUNCN enhanced AT command
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