一、Introduction

Product introduction

EG25-G

EG25-G is the LTE Cat 4 wireless communication module designed by CTC for M2M and IoT. It adopts 3GPP Rel.11 LTE technology and supports maximum The line rate is 150 Mbps and the maximum uplink rate is 50 Mbps. At the same time, EG25-G is compatible with remote communication UMTS/HSPA+ UC200T series modules in package.Multi-mode LTE Standard EC2x series (EC25 series, EC21 series and EC20-CE) /EC200A series /EG21-G modules can be designed and used efficiently Live to switch.

This module does not support voice calls and SMS, if you need support, please contact business <sales@t-firefly.com>。

Detailed parameters

Model	EG25-G Mini PCIe
Working frequency band	LTE-FDD: B1/B2/B3/B4/B5/B7/B8/B12/B13/B18/B19/B20/B25/B26/B28 LTE-TDD: B38/B39/B40/B41 UMTS: B1/B2/B4/B5/B6/B8/B19 GSM: B2/B3/B5/B8
Data transmission	LTE-FDD: Max 150 Mbps(DL) Max 50Mbps(UL) LTE-TDD: Max 130 Mbps(DL) Max30 Mbps(UL) DC-HSDPA: Max 42 Mbps(DL) (UL) HSUPA: Max 5.76 Mbps(UL) WCDMA: Max 384 kbps(DL) Max 384 kbps(UL) EDGE: Max 296 kbps(DL) Max236.8 kbps(UL) GPRS: Max107 kbps(DL) Max 85.6 kbps(UL)
Structure size	29.0 mm × 32.0 mm × 2.4 mm Weight about 4.9 g
Authentication	Deutsche Telekom Verizon/AT&T/Sprint/U.S. Cellular/T-Mobile Telus/Rogers* SRRC/CCC/NAL GCF CE UKCA PTCRB FCC IC Anatel IFETEL KC NCC JATE/TELEC RCM NBTC IMDA ICASA RoHS WHQL
Antenna Connectors	x3 main antenna, diversity antenna and GNSS antenna

二、Usage

Hardware connection

Module connection

PCIE connection

USB connection

SIM insertion

三、Firmware and Resource download

Related documents and firmware download, see the official website Resource Download

四、Tutorial

Flash firmware

CPU	USB upgrade	SD upgrade
RK3566	AIO-3566JD4, ROC-RK3566-PC	AIO-3566JD4, ROC-RK3566-PC
RK3568	AIO-3568J, ROC-RK3568-PC, ROC-RK3568-PC-SE	AIO-3568J, ROC-RK3568-PC, ROC-RK3568-PC-SE
RK3588	ITX-3588J, ROC-RK3588S-PC, AIO-3588SJD4,AIO-3588Q	ITX-3588J, ROC-RK3588S-PC, AIO-3588SJD4 ,AIO-3588Q
RK3576	ROC-RK3576-PC, AIO-3576Q, AIO-3576C	ROC-RK3576-PC ,AIO-3576Q, AIO-3576C

EC20 GNSS Function(optional)

EC20 module supports wireless network data communication, Suffix SGNS: support GNSS

GNSS is supported by public firmware, but disabled by default

Parameters

EC20 module supports GPS, GLONASS, GALILEO and BEIDOU, and is compatible with standard NMEA 0183 protocol. It can output NMEA information of 1Hz frequency through USB NMEA interface. The default output serial port is /dev/ttyUSB1 and baud rate is 115200 bit/s.

Antenna Requirements

	Parameter
Frequency range	1559MHz~1609MHz
Polarization	RHCP or Linear
VSWR	< 2(Typical)
Active antenna noise figure	< 1.5dB
Active antenna gain	> 0dB
LNA gain embedded in active antenna	< 17dB

How to enable GPS and modify serial port Configuration

Android Temporary modification method

Enable ADB, and how to enable ADB, please refer to wiki tutorial ADB Use

Set system readable and writable

adb shell setprop persist.sys.root_access 3
adb root && adb remount

Modify Parameters
- Enabled GPS：Modify the parameter ro.factory.hasGPS in /vendor/build.prop on the machine to true to enable GPS. It will take effect after soft restarting the machine.
- Modify serial port configuration: change SERIAL_DEVICE and SERIAL_BAUD_RATE in /system/etc/u-blox.conf to /dev/ttyusb1 and 115200 respectively. It takes effect after soft restarting the machine.

Android Code modification method

Enabled GPS
- Modify the BOARD_HAS_GPS in the SDK directory device/rockchip/{CPU}/{PRODUCT}/{PRODUCT}.mk to true to enable GPS function. Then, recompile the SDK and upgrad the firmware to take effect.
Modify serial port configuration (serial port node or baud rate)
- Set SERIAL_DEVICE in device/rockchip/{CPU}/{PRODUCT}/GPS/u-blox.conf to /dev/ttyUSB1. SERIAL_BAUD_RATE is changed to 115200. Then, recompile the SDK and upgrad the firmware to take effect.

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