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DLK-M230
Product Detail:
RF Characteristics:
GSM phase 2 / 2 + standards
Dual-Band: EGSM900 and GSM1800
Transmitting Power:
         Class 4 (2W) at EGSM900
         Class 1 (1 W) at GSM1800
(800/1900MHz and other special frequency could be customized)
 
Power:
Input Voltage: DC5 ~ 25V (DC 9V Adapter as standard)
SIM card operating voltage: 3V/1.8V
Current consumption:
Talk mode: 300mA (average)
         400mA (max)
Sleep mode: 3.0mA (max)
Idle mode: 10.0mA (max)
 
Features:
SMS: MT, MO, CB, and PDU mode
Messaging content: support digital, voice, SMS and fax
Module reset: reset using AT command or power-down
Maximum transfer rate: 14.4KBPS
Audio decoding standards (three rates):
Half speed (ETS 06.20), full speed (ETS 06.10)
Enhanced full-speed (ETS06.50/06.60/06.80)
 
Volume:
Without mounting holes and interfaces: 64 * 46 * 18.5mm
With mounting holes and interfaces: 78 * 66 * 18.5mm
Weight: 200g
 
Appearance:
Shell Package: good electromagnetic shield and metal housing, durable; anti-electromagnetic interference, excellent cooling capacity in high-temperature
Interface: standard RS-232/RS-485/TTL level, DB9 Interface
Antenna: 50ohm/SMA/Female

Environment:
Operating temperature: -40℃~ +65℃
Automatic shutdown:> / +70℃
Storage temperature: -50℃~ +85℃
Humidity: ≤ 90%
Magnetic compatibility: Electrostatic Discharge Immunity Test Level: 3
Radio frequency electromagnetic radiation: Immunity Test Level: 3
 
     As the development of wireless communication technology, GPRS products are used more and more widely in data transmission. Birth of GPRS Modem promotes development of this application. Dial-Link developed DLK-M230 GPRS Modem, compatible with GSM, for a simpler and more practical GPRS communication solution.
    
     DLK-M230 GPRS Modem is characterized for aspect below: (1) both interface design and external servo circuit is simplified to suit harsh industrial site. (2) 3 level interface of RS-232, RS-485, TTL. (3) AT commands complete data communication between terminals.
 
     AT command interface based on serial communication saves development time and intensity. The modem also can be used as an integral part of the product. Years of on-site real test prove it to be trustworthy wireless data transmission terminal.
 
◆ Built-in SEIMENS MC37i wireless module
◆ Smallest in similar products, suitable for embedded integration; power saving mode, fit for mobile devices
◆ Watchdog of internal hardware and software, to monitor and ensure operation
◆ Strong anti-interference, good housing package
◆ Fast to use, easy to install
◆ Common RS-232/RS-485/TTL level interfaces, voice enabled
◆ Use simple AT command interface
◆ Enable dial-up Internet, SMS text messages, CSD, voice and other services
◆ Enable point to point, multipoint, CSD and other flexible networking
◆ Timing detecting communication state,  and device will reset connection if communication stops for long time
◆ Status indicator: power status indication, system status indication, bell indication, data sending and receiving indication
 
Finance: engine room monitoring of bank saving points, mobile securities trading and information search
Communication: dynamic environment monitoring of telecommunication room, line information inquiry of communication maintenance workers 
Traffic: GPRS / SMS / GPS monitoring and dispatching system of motor vehicles; monitoring and dispatching of bank armored cars, postal vehicles, buses and taxies
Public Security: monitoring and dispatching of public security, and traffic police vehicles, police mobile data (ID card, crime files, etc.) inquiry,traffic police mobile data (vehicle and driver files, etc.) inquiry
Heat: real-time monitoring and maintenance of thermal systems
Power: real-time monitoring and automatic power compensation, remote automatic power meter reading
Company: mobile office and management, field staff mobility data query
Industry: industrial remote sensing, telemetry, remote control information return
Life: real-time data acquisition and automatic control of gas regulator station, real-time monitoring and maintenance of water and sewage pipes
 
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