RS232 Serial to Ethernet Gateway Data Converter

H800u 3G Router







RS232 Serial to Ethernet Gateway Data Converter


H800 is a 3G cellular router. It is also a RS232 Serial to Ethernet Gateway Data Converter with its RS232 ethernet port feature. In China we call rs232 to cellular gateway as DTU modem.


H800 3G WCDMA Router is a kind of HSUPA router providing 14.2Mbps download and 5.76Mbps upload maximum. High speed can make the perfect solution for the large volume wireless data transmission requirement.


The H800 series GPRS/CDMA/3G RS232 serial to ethernet gateway based on GPRS or CDMA or 3G HSDPA HSUPA EVDo mobile network. It provides data communication network for industrial applications. With the reliable, flexible and cost-effectiveness features, it can be utilized at many areas to provide the M2M communication channels.
H800 GPRS/CDMA/3G DTU provides RS-232/RS-485 interface. Embedded with PPP, TCP/IP and DDP protocol, it converts the user data into GPRS or CDMA 1x or 3G network and transmits the data into the customer’s data service center. With the professional designing, the H800 GPRS/CDMA/3G DTU provides the plug and play, easy to use and maintenance features.

Main Feature of H800Serial to Cellular Gateway

  • Embedded PPP, TCP/IP stack;
  • Transparent data conversion and transmission;
  • Supports static data service center IP address;
  • Supports DNS and dynamic data service center IP address;
  • Supports GPRS/EDGE/3G customized APN or CDMA VPDN;
  • Supports peer to peer, center to multi-point data transmission;
  • Supports Xmodem protocol and firmware updating;
  • Optimized EMC design;
  • Wide range power input;
  • Smart power management;
  • Power on/off control;
  • Industrial class pluggable terminal block;
  • Standard antenna and SIM interface;
  • Reliable, flexible, easy to use and management;

Enhanced Feature of H800 Serial to Cellular Gateway


Industrial design for different application environments:

1. Industrial class components
2. Embedded RTOS


Built-in multiple communication protocols:



Multiple operation model:

1. Always online: automatic online while it powered on, automatic redial and keep-alive while the line dropped.
2. Data trigged online
3. Ring and SMS trigged online
4. Online control interface with the connected device
5.GPRS/CDMA and SMS backup and switch
6. Data loop testing


Flexible data communication :

1. Supports TCP/IP Server/Client, UDP/IP, DDP, SMS, AT
2. Self-define transparent or protocol communication
3. Self-define last packet idle interval and MTU
4. Self-define customized data frame separator
5. Self-define re-connecting interval
6. Self-define online report interval
7. Self-define heart-beating data frame


Industrial Application - 3G WCDMS HSUPA Router

  • 1) Remote Data Monitor and Control;

  • 2) CCTV, security surveillance;
  • 3) Water, gas and oil flow metering and schedule;
  • 4) AMR (automatic meter reading);
  • 5) Power station monitoring and control;
  • 6) Remote POS (point of sale) terminals, ATM,
  • 7) Traffic signals monitor and control, Traffic info guidance;
  • 8) Oil field, weather forecast, environmental protection, street lamp monitoring and control
  • 9) Early Warning of Mountain Torrent;
  • 10) Fleet management;
  • 11) Power distribution network supervision;
  • 12) Central heating system supervision;
  • 13) Weather station data transmission;
  • 14) Hydrologic data acquisition;
  • 15) Vending machine;
  • 16) Telemetry, SCADA;
  • 17) Vehicle logistics and diagnostics controlling;
  • 18) Parking meter and Taxi Monitor;
19) Telecom equipment supervision (Mobile base station, microwave or optical relay station)
Download - Serial 3G Ethernet Gateway

H800 Serial to 3G Ethernet Gateway


Quick Start

User Manual

For more serial to cellular gateway converter, please check

D120 Series Serial to Cellular Data Converter;

H685 Series Serial to Cellular Data Converter;


For single port 3G WCDMA Router, please click

H685 3G Router




For non-industrial Cellular Mobile Router, please refer to

non-industrial classed cellular router



Catalog - Router Modem AP


Industrial Class Series


SOHO Class Series

Appearance - Serial to Ethernet Gateway
H800 Serial to Ethernet Gateway

GSM/GPRS/EDGE: 850/900/1800/1900Mhz
UMTS/WCDMA/HSDPA/HSUPA: 850/900/1900/2100Mhz

Data Speed:
HSDPA: 7.2Mbps downlink, 384kbps uplink
HSUPA: 14.4Mbps downlink, 5.76Mbps uplink

Connect to Internet, data transmission, network always online, auto redail up
1 WAN + 4 LAN + WiFi
RS232 serial to ethernet data converter
Support User-friendly Web GUI;
Firmware Upgradeable;
Traffic & Event Log;
Firewall - NAT, ALG modules, DMZ, DDNS
VPN and Tunneling (PPTP,L2TP, IPsec) optional 
Network Services include DHCP, Time, DNS
Remote Management with SNMP
Zero-configuration UPnP support
Web based SMS client
R&TTE and GCF certified
Supply voltage range 5 - 25VDC(12V suggest)
Low power waste
Support Firmware update for better quality
Dimension: 158 x 106 x 27mm(without antenna)
470g (not including the antenna)
500g (including the antenna)
920g (including all accessories)
Steel shell: good electromagnetic shield and , heat radiate performance
Electromagnetic Compatible
Electrostatic Discharge (ESD): 3 class
Radiated, radio-frequency, electromagnetic field immunity test: 3 class
Storage Temperature: -40 ~ 85°C
Working Temperature: -30 ~ 75°C
Humidity: 95% (non-condensing)
Product Network Band Power Interface VPN WiFi
H800u HSUPA/HSDPA/EDGE/GPRS/GSM 850/900/1800/1900/2100MHz DC 9V~24V WAN X 1/LAN X 4, RS232 No No  
H800uw HSUPA/HSDPA/EDGE/GPRS/GSM 850/900/1800/1900/2100MHz DC 9V~24V WAN X 1/LAN X 4, RS232 No Yes  
H800uv HSUPA/HSDPA/EDGE/GPRS/GSM 850/900/1800/1900/2100MHz DC 9V~25V WAN X 1/LAN X 4, RS232 Yes No  
H800uwv HSUPA/HSDPA/EDGE/GPRS/GSM 850/900/1800/1900/2100MHz DC 9V~25V WAN X 1/LAN X 4, RS232 Yes Yes