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InRouter791 - Industrial 3G Router
Key Characteristics
  • Ruggedized 3G HSPA+, EVDO Router
  • Built-in firewall, VPN, access control for securing critical applications
  • Industry standard Modbus TCP and Modbus RTU protocols

  • Centralized monitoring and control with the InHand Device Networks Platform 4.0

  • InRouter700 is an End-of-Life series, please consult with sales for availability. Recommended replacement product: InRouter900

Overview Specifications Topology Dimensions Part Numbers Documentation

As a proven industrial router, the InRouter791 has been recognized as the industry leader in cellular since 2001. The InRouter791 features industrial electronics hardware design, advanced networking features and industrial serial protocol conversion to support a wide range of RTU and PLC devices while the ruggedized design standards ensure long-term performance in the face of power fluctuations and extreme temperatures. 

The InRouter791 is recognized for years of continuous service by world-class customers and partners including GE Healthcare, Siemens Traffic, Schneider Electric, Rockwell Automation, SKF, Vestas, and China State Grid among others.

Industrial Design
  • Metal housing, IP30 protection class            

  • Class 4 EMC certification            

  • Ethernet port supports 1.5KV isolation protection            

  • Serial port supports 15KV ESD protection            

  • Wide Temperature : -25 ℃ ~ 70 ℃            

  • Conversion between Modbus TCP and Modbus RTU            


Data Security
  • IPsec VPN, L2TP, SSL VPN, CA certificates to guarantee secure data transmission            

  • SPI statefull inspection, Secure Shell (SSH), intrusion protection, ping blocking, DDoS defense, detection prevention            

  • IP-MAC binding functions protect networks from outside attacks            

  • Multi-level user authorization management for different users with different levels of management access             


High Reliability
  • Link layer detection tracks the link condition to automatically redial the wan connection when dropped            

  • ICMP detection tracks the connection status of the layer 3 network            

  • VPN Tunnel Detection ensures VPN tunnel connection stability, and guarantees the continuity of data transmission             


Easy, Efficient Deployment and Management
  • User-friendly Web and CLI configuration tools            

  • Support InHand Device Manager for efficient network management, especially large-scale networks            

InRouter791 Software  Specifications
Items InRouter791
Internet Connection Cellular GSM/GPRS/EDGE: 850/900/1800/1900 MHz
UMTS/EVDO: 850/900/1900/2100 MHz
Internet Access


Authentication CHAP/PAP
LAN Protocol ARP
IP Application DHCP Server, DHCP Relay, DNS relay, DDNS ,HTTP, HTTPS, VRRP
IP routing Static routing
Security Management Security AAA (TACACS+/Local) 
Multi-level user management
Firewall Protection SPI, anti-DOS attack, filter multicasts  and ICMP, DMZ, access control list (ACL), virtual IP
Data Security IPsec VPN, L2TP, PPTP, GRE, CA Certification
Reliability Link Detection Reconnects  automatically when a link failure is detected
Embed Hardware watchdog Auto recovers from failures
Intelligence Integrated DTU Functions Transparent transmission, Modbus TCP/Modbus RTU, IEC101/104, virtual serial port, WP protocol, WN protocol, Trap+Poll, RFC2217
Network Management
Configuration HTTP/HTTPS/Telnet, SSH, CLI, InHand Device Manager Cloud, loopback interface
FirmwareUpgrade Via Web interface or InHand Device Manager


Remote logging protocol or local logging
Text Message (SMS) Reboot and inquiry
On-Demand Dial Up On-demand dialing, data activation, SMS activation
Network Management InHand Device Networks Cloud Platform
Debugging Ping, traceroute, speed test
Traffic Management Support bandwidth control/port speed limit
InRouter791 Hardware Specifications
Items InRouter791
Interface Ethernet Port 1*10/100Mbps Fast Ethernet Ports, LAN Port, 1.5KV isolation protection
Power  Supply DC 12-48V
Serial Port 1* RS-232/485 interface (DB9), 15KV ESD protection 
SIM Holder Drawer Card Holder x1

Pinhole Reset Button

SMA connector

SMA female*1

Mechanical Mounting DIN-Rail,  or wall mounting
Dimension (mm) 100 x 100 x23
Enclosure Metal
Protection Level IP30
Cooling No Fan
Power Consumption Standby 200mA@12V
Operating 250mA@12V
Environment Humidity 5 ~ 95% relative humidity (non-condensing)
Storage Temp -40  ~ 85°C
Working Temp -25  ~ 70°C
LED Indicators POWER Power indicator
STATUS Operation status indicator
WARN Warn indicator
Modem Module indicator
Cellular Signal 3 Levels of Cellular Signal Strength
ERROR Error indicator
EMC Electrostatic  Discharge Immunity EN61000-4-2,level 4
Radio Frequency  Immunity EN61000-4-3,level 4
Electrical Fast  Transient/Burst Immunity EN61000-4-4,level 4
Surge EN61000-4-5,level 3
Immunity to Conducted  Disturbances EN61000-4-6,level 4
Shockwave  Immunity EN61000-4-12,level 4
Power Frequency Magnetic Field Immunity

EN61000-4-8,Horizontal/Vertical 400A/m (>level 5)

Physical Shock IEC60068-2-27
Free Fall IEC60068-2-32
Vibration IEC60068-2-6
Certification CE, FCC
Warranty 3 years

The InRouter791 is recognized as the industry leading rugged 3G router. In the field, it can provide the network connectivity for serial or Ethernet RTU and PLC devices so that maintenance engineers can access remote devices for programming, remote I/O and SCADA applications. All traffic is tunneled through standard IPsec VPN protocol to provide the encryption and access control for machines and engineers.



Part Number                                    InRouter791< N >< -S >                

N (Network)                    


PH09: (Global)                    

Quad band HSPA+/UMTS: 850/900/1900/2100MHz
Quad band GSM: 850/900/1800/1900MHz


VZ16: (China)                    

EVDO(Rev.A)/CDMA2000 1X: 800/1900MHz                    

S (Serial Type)                < NA >: RS232
485: RS485

IR791PH09-485: 1-port wireless router, HSPA+, RS485 serial port                    

InRouter700 Specification

InRouter700 User Manual

Industrial Router & Gateway
Industrieller Ethernet-Switch
Smart Grid
Smart City
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