H7709 CDMA Modem (DTU)

CDMA Modem: Best price and high quality, with TCP/UDP protocol, over GPRS network

1. CDMA Modem General

 H7708/H7709 CDMA1x DTU is a data termination unit based on CDMA1x 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 by wireless DDN. 

H7708/H7709  CDMA1x DTU is a public-platform-based and embedded wireless DDN Data Termination Unit (DTU) which is designed from highly industrial automatization integration and compatibility of market application. It provides differential requirement from different fields, users and applications. Embedded with TCP/UDP protocol, industrial design with 20-pin sockets, it converts the user data into CDMA network and transmits the data into the customers data service center while its embedded in terminals which can provide mobility. H7708/H7709 CDMA1x DTU  is embedded with user terminals without casing as of further embedded than normal .With the professional designing, H7708/H7709 CDMA1x DTU provides the plug and play, easy to use and maintenance features.

Hongdian Data Termination Units (DTU) have been widely used for many application areas in the world, such as electric power, oil field, coal mine safety, weather forecast, environment protection, hydrology, heating pipe line, gas pipe line, street lamp control, telecommunications, post, bank and many other areas.

DTU - Data Termination Unit, it is Hongdian registered trade mark.

DDP - DTU/DSC Protocol, it is the data transmission protocol between DTU and data service center. it is Hongdian registered trade mark.

TDP- Terminal/DTU Protocol, it is the data transmission protocol between DTU and user terminal. it is Hongdian registered trade mark.2. Hongdian H7708/H7709 DTU Features

1) Basic functions

Embedded PPP, TCP/IP stack

Transparent data conversion and protocol transmission

Supports static data service center IP address

Supports DNS and dynamic data service center IP address

Supports CDMA data channel and SMS backup

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

Support Carrier public & special APN

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 R-UIM interface

Reliable, flexible, easy to use and management

Embedded PPP, TCP/IP stack2) Enhanced functions

Industrial design for different application environments

     Industrial class components,Industrial class CDMA wireless module, Embedded RTOS 

Modularization design with super spread

     Separated design between CPU and wireless module;

     Flexible to support different networks, easy to spread;

Built-in multiple communication protocols     PPP, TCP/IP, UDP/IP

     Hongdian DDP protocol, ensuring the data channel reliability

     Hongdian ADP and 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;

     CDMA data 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

     TDP protocol parameter configuration

     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. Hongdian H7708/H7709 DTU Specifications1) Data

Support CDMA1x

Support 800Mhz,(450Mhz or 800/1900Mhz are optional)

Support IS 707 data service

Support Class 2.0 Group 3 facsimile

CDMA 2000 spread spectrum

Complied with IS-95A, IS-95B CDMA interface2) Interface

Antenna: 50/SMA-K Female

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

3) Power

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

Consumption: Average working current:25mA/+12VDC

4) Others

Mechanical:H7709 (96x60x30 )mm (not including antenna)

                      H7708 (85x40x30 )mm (not including antenna)

Weight: H7709(180g)  H7708(120g)

Operation temperature:-20~+55ºC

Store temperature:-40~+85ºC

Related humidity:95%( non-condensing)

H7709 CDMA Modem (DTU)