InDTU324 Industrial Cellular Modem

Compact Design, Reliable Serial to Cellular Communications

The InDTU324 cellular modem provides wireless data communications between field serial devices and the central control system. Available with both DATA Mode (which autonomously connects to your cloud server) and AT Mode (which supports standard AT commands), it enables remote monitoring and control of industrial field sites.

Features:

• industrial design  
• small form factor  
• wide operating temperature: -40°C~70°C
• wide voltage input: 5~35VDC 
• metal housing, IP30 protection 
• compact-sized, easy to fit and integrate 
• CE, FCC certified

Highly-reliable Wireless Communications

• self-recovery: embedded watchdog, self recover from faults, ensuring normal operation of the device
• link redundancy: SMS and 4G/3G/GPRS link mutual backup to ensure continuous data transmission
• link detection: multi-layer link detection mechanisms including PPP layer heartbeat, ICMP detection, TCP Keepalive and application layer heartbeat, keeping wireless connection "always on"

Easy and Flexible to Manage

• support configuration software login via local serial port
• support RTOOL remote configuration over TCP/IP
• support remote batch management via InHand Device Manager cloud
• support SMS configuration 

Rich Functions for Intelligent Solutions

• Modbus RTU/Modbus TCP protocol conversion for industrial SCADA systems and field devices 
• support IEC101/IEC104 conversion (coming soon)
• support transparent TCP/UDP protocol
• support InHand DC protocol
• support user-defined TCP/UDP hearbeat and login data 
• support multi-center, 1-5 centers

Applications:

• distribution automation communications
• intelligent lightning
• agricultural greenhouse remote monitoring
• water utilities remote meter reading
• flood monitoring system

Network connection                   

• Internet access: APN, VPDN                        
• authentication: CHAP/PAP                   
• network type: 4G/3G/GPRS                        

Network protocol                        

• network protocol: Ping, DNS, transparent TCP/UDP, InHand DC TCP/DC, UDP, user-defined login/heartbeat data packet                  
• protocol conversion: Modbus RTU/TCP protocol conversion                        

Network security                        

• multi-level authorization: user levels: administrator, maintenance staff                        
• certification security: supports login security certification                        

Reliability                   

• reliable upgrade: patent upgrade mechanism, ensures reliable upgrade                        
• link connection detection: sends heartbeat packet detection, auto connect once disconnected                        
• embedded watchdog: device operation self-detection technology, and self-recovery from operation faults                        

Network management                        

• configuration method: local serial port, RTool, InHand Device Manager, SMS                   
• configuration backup: supports import and export of configuration files                        
• upgrade method: patent upgrade mechanism, upgrade firmware through local serial port or remotely                        
• log: supports local and remote viewing of logs, facilitate engineers to check device operating status                        
• dial-on-demand: data activation, timed on/off,  SMS activation (depends on the carrier's platform), phone activation (InDTU324L only)                        
• network management: supports InHand device manager remote central management                        

Specification:

• Interface                   
  • serial port:
    • 2 x logic serial ports:
      • serial port 1: RS-232/485 (Optional)
      • serial port 2: RS-232                        
    • RS-232 signal: TXD, RXD, GND
    • RS-485 signal: 485+, 485-, GND                        
    • 10 PIN industrial terminal, 3.5mm pitch                        
  • SIM Card Slot: 1.8V/3V, drawer-type slot                        
  • antenna: 50Ω / SMA x 1                        
• mechanical properties:
  • installation: wall-mounting                        
  • protection: IP30                        
  • cooling: fanless                        
  • housing: metal                        
• power supply                        
  • power input: DC5-35V                        
  • power interface: pluggable industrial terminal connection                        
  • polarity reverse protection: supported                        
  • overload protection: supported                        
  • consumption (@12V)                        
  • InDTU324L: 12mA (standby), 47mA (working), 202mA (starting), 202mA (starting)                          
• environment                        
  • operating temperature: -40 ~ 70℃                        
  • storage temperature: -40 ~ 85℃                        
  • ambient humidity: 5 ~ 95% (non-condensing)                        
• LED indicators                        
  • LED: POWER, SIM, STATUS                        
• EMC Index                        
  • static: EN61000-4-2, level 2                        
  • surge: EN61000-4-5, level 2                        
  • shock wave immunity: EN61000-4-12, Level 2                   
• certifications: CE, FCC