IoT Products

F3125 GPRS ROUTER is a kind of cellular terminal device that  provides data transmission function by public GPRS network.


It adopts high-powered industrial 32-bits CPU and embedded real time operating system. It supports RS232 (or RS485/RS422) and Ethernet port that can conveniently and transparently connect one device to a cellular network, allowing you to connect to your existing serial and Ethernet devices with only basic configuration.

It has been widely used on M2M fields, such as intelligent transportation, smart grid, industrial automation, telemetry, finance, POS,water supply, environment protection, post, weather, and so on.

Technical Specification

Cellular Specification:
Cellular Module Industrial cellular module
Standard and Band EGSM900/GSM1800MHz, GSM850/900/1800/1900MHz(optional)
Compliant to GSM phase 2/2+
GPRS class 10, class 12(optional)
Bandwidth 85.6Kbps
TX power GSM850/900:
RX sensitivity  
Hardware System
CPU Industrial 32bits CPU
FLASH 8MB(Extendable to 64MB)
Interface Type
Ethernet 1 10/100 Mbps Ethernet port(RJ45), auto MDI/MDIX, 1.5KV magnetic isolation protection
Serial 1 RS232(or RS485/RS422) port, 15KV ESD protection
Data bits: 5, 6 ,7, 8
Stop bits: 1, 1.5(optional), 2
Parity: none, even, odd, (space, mark) (optional)
Baud rate: 2400~115200 bps
Indicator "Power", "System", "Online", "Link/ACT", "Alarm", “Signal Strength”
Antenna Standard SMA female interface, 50 ohm, lighting protection(optional)
SIM/UIM Standard 3V/1.8V user card interface, 15KV ESD protection
Power Standard 3-PIN power jack, reverse-voltage and overvoltage protection
Reset Restore the router to its original factory default settings
Power Input
Standard Power DC 12V/1.5A
Power Range DC 5~35V
Physical Characteristics
Housing Iron, providing IP30 protection
Dimensions 157x97x25 mm
Weight 440g
Environmental Limits
Operating Temperature 35~+75ºC(-31~+167°F)
Storage Temperature -40~+85°C(-40~+85°F)
Operating Humidity 95% ( unfreezing)


 Features and benefits


Design for Industrial Application

  • 1.High-powered industrial cellular module
  • 2.High-powered industrial 32bits CPU
  • 3.Support low-consumption mode, including sleep mode, scheduled online/offline mode, scheduled 4.power-on/power-off mode(optional)
  • 5.Housing: iron, providing IP30 protection.
  • 6.Power range: DC 5~35V

Stability and Reliability


  • 1.Support hardware and software WDT
  • 2.Support auto recovery mechanism, including online detect, auto redial when offline to make router always online 
  • 3.Ethernet port: 1.5KV magnetic isolation protection
  • 4.RS232/RS485/RS422 port: 15KV ESD protection
  • 6.SIM/UIM port: 15KV ESD protection
  • 7.Power port: reverse-voltage and overvoltage protection
  • 8.Antenna port: lightning protection(optional)



Standard and Convenience

  • 1.Support standard RS232(or RS485/RS422), Ethernet port that can connect to serial, Ethernet devices directly
  • 2.Support intellectual mode, enter into communication state automatically when powered
  • 3.Provide management software for remote management
  • 4.Support several work modes
  • 5.Convenient configuration and maintenance interface(WEB or CLI)




  • 1.Support 3G/HSPA/4G WAN access methods.
  • 2.Support VPN client(PPTP, L2TP, OPENVPN, IPSEC and GRE)(only for VPN version)
  • 3.Support VPN server(PPTP, L2TP, OPENVPN, IPSEC and GRE)(only for VPN version)
  • 4.Support local and remote firmware upgrade,import and export configure file.
  • 5.Support NTP, RTC embedded.
  • 6.Support mulitiple DDNS provider service.
  • 7.Support MAC Address clone, PPPoE Server 
  • 8.Support multi online trigger ways, including SMS, ring and data. Support link disconnection when timeout
  • 9.Support APN/VPDN
  • 9.Support DHCP server and client, firewall, NAT, DMZ host , URL block, QoS, ttraff,statistics, real time link speed statistics etc.
  • 10.Full protocol support , such as TCP/IP, UDP, ICMP, SMTP, HTTP, POP3, OICQ, TELNET, FTP, SNMP, SSHD, etc.
  • 11.Schedule Reboot, Schedule Online and Offline,etc.


Power Supply » DC Voltage Supply » 5-24V
Mechanics » Mounting » Holes / Screw Connect
Mechanics » Vibration » Shock Resistant
Mechanics » Protection Class » IP20
Environment » Temperature Range » Industrial (-25°C / +65°C)
Interface » Type of Inputs / Outputs » Digital
Interface » Type of Inputs / Outputs » Analog

F3125 User Manual
F3125 Specification