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/CDMA 1x data channel and SMS backup

Supports peer to peer, center to multi-point data transmission

Supports GPRS/EDGE customized APN or CDMA VPDN

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/R-UIM interface

Reliable, flexible, easy to use and management
2) Enhanced

Industrial design for different application environments
     Industrial class components; Embedded RTOS;

Built-in multiple communication protocols

     PPP, TCP/IP, UDP/IP;

     Hongdian DDP protocol, ensuring the data channel reliability;

     Hongdian AT+ protocol, satisfying the customized applications

Multiple operation model

     Always online: automatic online while it powered on,
     automatic redial and keep-alive while the line dropped;

     Data trigged online;

     Ring and SMS trigged online;

     Online control interface with the connected device;

     GPRS/CDMA and SMS backup and switch;

     Data loop testing;

Multiple data service center communications
     Supports up to 4 data service center communication
     Supports main/backup data service center communication
     Supports customized setting for each data service center

Flexible data communication

     Supports TCP/IP Server/Client, UDP/IP, DDP, SMS, AT

     Self-define transparent or protocol communication

     Self-define last packet idle interval and MTU

     Self-define customized data frame separator

     Self-define re-connecting interval

     Self-define online report interval
     Self-define heart-beating data frame

Parameters configuration and remote management

     Built-in Chinese or English configuration tool

     PC based configuration tool

     Remote configuration via data service center

     Remote configuration by SMS

     Configuration via AT+ command

Full function data service center development kits

     Full function development package

     Complete set of Chinese and English version demo source code (VB, VC, C#, Delphi)

     Complete function data service center software for transparent data transmission

     Powerful data service center testing tool

     Integrated with HMI/MMI/SCADA software (for Chinese market only)

3. H7710 Series DTU Specifications
1) GPRS data

Supports GSM/GPRS

Supports 900/1800MHz (other band optional)

GPRS Class 2~10

Code Scheme: CS1 - CS4

Complied with SMG31bis specifications

2) CDMA 1x data

Supports 800MHz (other band optional)

Support IS 707 data service

Support 153kbps packet data

Support Class 2.0 Group 3 facsimile

CDMA 2000 spread spectrum

Complied with IS-95A, IS-95B CDMA interface

3) Interface

Antenna: 50/SMA Female

SIM/R-UIM: 3V

Serial data interface

     Type: TTL/RS-232/RS-422/RS-485;

     Rate: 300~115200bps;

     Connector: 3.5mm pluggable terminal block (14~24AWG);

Configuration interface: RS-232 (57600bps)

Voice interface: Standard voice level input/output

4) Power

Voltage: +7.5~+26VDC (+5VDC optional)

Consumption

     a) GPRS standard product:

         Peak current: 1.5A/+12VDC; Communication: 150mA/+12VDC; Idle: 60mA@+12VDC

     b) GPRS Low consumption product:

         Peak current: 1.5A/+12VDC; Communication:  70mA/+12VDC;  Idle: 25mA/+12VDC

     c) CDMA standard product

         Peak current: 1.5A/+12VDC     

         Conversation: 150mA/+12VDC

5) Others

Mechanical: 93x54x22 mm (not including antenna and mounting kits)

Weight: 150g

Operation temperature: -30~+70ºC

Store temperature: -40~+85ºC

Related humidity: 95% (non-condensing)

Ordering Information

H7710 GPRS/CDMA DTU is designed at platform basis; you can order different options to fit your customized application.  

Above modules can be designed in accordance with customer's specifications. OEM is also welcome.