GPRS Terminal

Product

H7118 data communication system has been used at many circumstances. Considering the application environment, customers can order different boards, modules and accessories in accordance with their requirements. There are following modules can be selected; the data center should be developed and integrated with customers applications. 

Ordering Information

Related humidity: 95%(non-condensing)
 

Operation temperature: -30~+70?C

Weight: 100g

Mechanical: 83.5x47x17.5  (not include antenna)

5) Others

Power consumption
     Max. current: 230mA/+12VDC
     Idle: 12mA/+12VDC

Voltage: +7.5~+26VDC

Alarm output interface: TTL
4) Power Supply

Voice interface: Ear/Microphone

Configuration interface: RS-232

Serial data rate: 300 to 115,200 bits/s

Serial data interface
     TTL; RS-232 (DCE or DTE) RS-485

SIM card: 3V

Antenna: 50ohm/SMA/Female

3) Interface

Complied with SMG31bis specifications

Code plan: CS1~CS4

GPRS Class 2~10

2) Data

Support DTMF signaling

Echo canceller and noise suppression (option)

Full rate, Enhanced full rate and half rate

Voice and Emergence Call

Reserved resources for developer

3. H7118 Series DTU Specifications
1) Voice

EMC/EMI design

Self-diagnostic and alarm output

Support web-based configuration

System upgrade by Xmodem protocol

System configuration and maintenance interface

Voice interface

RS-232/422/485 or Ethernet interface

STK card configuration

SMS backup channel (option)

 Point to point, point to multipoint, center to multipoint data transmission

Support virtual private data network

Transparent data transmission

Support A5/1&A5/5 encrypted arithmetic
2) Enhanced Functions

Always online

Complied with ETSI GSM Phase 2+ standard

Support dual band GSM/GPRS

Ease to use, reliable and flexible

    DTU = Data Termination Unit

2. H7118 Series DTU Features
1) Basic Functions

c) H7708/H7709 is public-platform-based and embedded wireless DDN Data Termination
    Unit support RS-232/422/485/TTL interface, support GPRS or CDMA1x network

b) H7710 DTU: RS232/422/485/TTL interface, common platform, supports 1x network

H7000 Mobile Data System developed by Hongdian Technologies provides a high speed, always online, transparent virtual lease line between remote site and central network. The main application areas are focused on power supply and industry supervision, traffic control, securities, finance, utilities and so on. With the transparent data transmission feature and variety of applications, H7000 system can be configured as a virtual private network. H7000 GPRS mobile data communication system consists of:
a) H7118 DTU: RS232/485/TTL interface, high performance, supports GPRS or EDGE

GPRS is a kind of mobile packet data service that provides high speed wireless IP connection between mobile users and data network. It is developed with packet switch technology; each user can occupy multiple radio channels, at the same time, one single radio channel can be shared by multiple users. Thus, radio resources are effectively utilized and the maximum GPRS bandwidth can reach 171.2Kb/s. Remaining online all the time, users pay merely for the data transmitted and received because of this technology.