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4G Module (Cat.1)

1. Product Featuresโ€‹

This module is developed based on the EG912U-GL (for regions outside North America) and EG915Q-NA (for North America).

The EG912U/EG915Q are LTE Cat.1 modules designed for M2M and IoT applications, supporting seamless network switching and rich interfaces. Core features include:

USB Interface Upgrade

The communication interface has been upgraded from UART to USB, increasing the transfer rate from 0.5 Mbps to 2.5-3.17 Mbps, meeting the demands of video transmission and other high-bandwidth data applications.

EG912U Series Module Specificationsโ€‹

ModuleEG912U-GL
Network CoverageGlobal bands (B1/2/3/4/5/7/8/12/13/17/18/19/20/25/26/28/66 LTE-FDD + B34/38/39/40/41 LTE-TDD)
Data RateLTE-FDD: 10Mbps (DL) / 5Mbps (UL) LTE-TDD: 8.96Mbps (DL) / 3.1Mbps (UL)
Optional FeaturesGNSS (GPS/GLONASS/BDS/Galileo/QZSS) Bluetooth 4.2 Wi-Fi Scan
Interfaces3x UART, USB 2.0, PCM/I2S audio, 2x ADC, SPI/I2C/LCM/Camera/SD card (QuecOpenยฎ)
Motherboard Communication InterfaceUSB (previously: UART)
AntennaMain antenna + GNSS/Wi-Fi antenna (optional)

Cat-1 (EG912U) Module Specificationsโ€‹

1ModuleQuectel EG912UGL
2LTE-FDDB1/ 2/ 3/ 4/ 5/ 7/ 8/ 12/ 13/ 17/ 18/ 19/ 20/ 25/ 26/ 28/ 66
3LTE-TDDB34/ 38/ 39/ 40/ 41
4GSMB2/ 3/ 5/ 8
5AntennaPCB Antenna
6Communication InterfacesUSB (previously: UART)
7Power SupplyDC 4-6V
8Operation Temperature-20โ„ƒ ~ +60โ„ƒ
9Storage Temperature-40โ„ƒ ~ +85โ„ƒ
10Dimensions60 x 60 mm
11CertificationsCE

EG915Q Module Specificationsโ€‹

ModuleEG915Q-NA
Network CoverageB2/B4/B5/B12/B13/B14/B66/B71
Data RateLTE-FDD: 10Mbps (DL) / 5Mbps (UL)
InterfacesUART, USB 2.0, PCM, SPI/I2C/LCM/Camera
Motherboard Communication InterfaceUSB (previously: UART)
AntennaMain antenna + GNSS/Wi-Fi antenna (optional)

Cat-1 (EG915Q) Module Specificationsโ€‹

1ModuleQuectel EG915Q-NA
2LTE-FDDB2/B4/B5/B12/B13/B14/B66/B71
3AntennaPCB Antenna
4Communication InterfacesUSB (previously: UART)
5Power SupplyDC 4-6V
6Operation Temperature-20โ„ƒ ~ +60โ„ƒ
7Storage Temperature-40โ„ƒ ~ +85โ„ƒ
8Dimensions60 x 60 mm
9CertificationsFCC

Interface Description (J1)โ€‹

The module communicates with the motherboard via the J1 interface. The current version uses the USB interface.

USB Interface (Current Version)โ€‹

The module communicates with the motherboard via USB, with transfer rates up to 2.5-3.17 Mbps, meeting the demands of video transmission and other high-bandwidth data applications.

PIN#Pin NameFunctionsPin TypePull Up/Down
1USB_DPUSB Data+I/ON/A
2NC
3CAT1_PWRHigh=ON;Low=OFFINN/A
4NC
5NC
6NC
7USB_DMUSB Data-I/ON/A
8NC
9GNDGNDPOWER
10GNDGNDPOWER
11NC
12NC
13VCC_INPower Supply
143V33.3 V power supplyPOWER
15VCC_INPower SupplyPOWER
163V33.3 V power supplyPOWER

UART Interface (Legacy Version)โ€‹

Expand to view legacy UART interface pinout

Earlier versions of the module communicated with the motherboard via UART, with transfer rates of approximately 0.5 Mbps.

PIN#Pin NameFunctionsPin TypePull Up/Down
1UART_TXDUART TransmitOUTN/A
2NC
3CAT1_PWRHigh=ON;Low=OFFINN/A
4NC
5NC
6NC
7UART_RXDUART ReceiveINN/A
8NC
9GNDGNDPOWER
10GNDGNDPOWER
11NC
12NC
13VCC_INPower Supply
143V33.3 V power supplyPOWER
15VCC_INPower SupplyPOWER
163V33.3 V power supplyPOWER

Speed Comparisonโ€‹

InterfaceTransfer RateUse Case
UART (Legacy)~0.5 MbpsLow-bandwidth data (commands, status reporting)
USB (Current)2.5-3.17 MbpsVideo transmission, high-bandwidth data sync

Dimensionsโ€‹

60*60mm

cat1PCBA