GPRS Modem

GPRS Modem:Built-in watchdog, co-working with hongdian dialup software, can achieve link detection and auto-redial.

H6x21 GPRS Modem is designed for industrial applications based on 2.5G/2.75G mobile network. It is developed at platform infrastructure with modular options. On the basis of many years mobile communication experiences and industrial application requirements, it is integrated with watchdog circuit and link detecting function. Co-working with Hongdian dialup software, H6x21 modem can detect radio channel and modem operation status itself. If the link dropped or hardware failed,H6x21 modem will redial or reset automatically. With this advanced function, customers can have reliable, flexible, economical data communication services at anywhere and anytime.

H6221 Series GPRS/EDGE Modem Functions

1) Basic Functions

Ease to use, reliable and flexible Support dual band GSM/GPRS Complied with ETSI GSM Phase 2+ standard Always online Support A5/1&A5/5 encrypted arithmetic

2) Enhanced Functions

Watch dog design, ensure modem alive GPRS link detection and redial (work with Hongdian dialup software) Support dial up control Send SMS via PC Support RS-232 interface

3) Special Functions

Power control    On/Off via interface connector    User can control Modem operation of PIN-Off power on, PIN-GND power off    Save power

Built-in RF module supervision    Built-in RF module status detection    Reset RF module when it out of service

Reset outlet    Ground the reset PIN 500ms restart modem

Serial Port Reset    Reset MODEM via RS-232 control PIN    Save the I/O resources    No interrupt with data communication    Only few source code program to controlH6221 Series GPRS/EDGE Modem Specifications1) Voice

Voice and Emergence Call Full rate, Enhanced full rate and half rate Echo canceller and noise suppression (option) Support DTMF signaling

2) GPRS data

GPRS Class 2~10 Code plan: CS1~CS4 Complied with SMG31bis specifications

3) Interface

Antenna: 50ohm/SMA/Female SIM card: 3V RS-232 interface Voice: Ear/Microphone

4) Operation System

Windows 9x/NT/2000/XP

Linux

5) Power Supply

+5VDC

6) Power consumptions:     Max. current: 350mA@+5VDC     Idle:  25mA@+5VDC

7) Others

Mechanical    98x100x23 (not include antenna)

Weight: 150g

Operation temperature: -5~+40ºC

Related humidity: 95%(non-condensing)

Ordering InformationH6221 Series GSM/GPRS modem has been used at many circumstances. Considering the application environment, customers can order different modules and accessories in accordance with their requirements. There are following models can be selected. 

Product	Model	Note
GSM MODEM	H6221-TS	RS-232 Interface,  Siemens TC35i module inside, 900/1800Mhz Dual band. +5VDC, +7. 5~26VDC Optional.
GPRS MODEM	H6221-W	RS-232 Interface,  Wavecom module inside, 900/1800 Dual band. +5VDC, +7. 5~26VDC Optional.
	H6221-S	RS-232 Interface,  Siemens MC39i module inside, 900/1800 Dual band. Either +5VDC or  +7.5~26VDC.
	H6221-H	RS-232 Interface,  Huawei module inside, 900/1800 Dual band.  Either +5VDC or  +7.5~26VDC.
	H6221-M2	RS-232 Interface,  Moto G24 GPRS module inside, 900/1800 Dual band.  Either +5VDC or  +7.5~26VDC.

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

GPRS Modem