Industrial grade GPRS router GPRSModem the Shenzhen factory direct dimension

WM8920A GPRS Modem is based on the 2G mobile / Unicom network for industrial customers communications needs and is designed for industrial modem. WM8920A using a common base platform, modular design, built-in major domestic and foreign industrial wireless core modules, meet the industry standards; provide standard RS-232 interface, and dimension the "wireless" program can be achieved with the use of the link detection, automatic disconnection redial, providing reliable, flexible networking, wide coverage, economical and practical wireless data transmission channel for various industries, applications, including electricity, oil, coal, meteorology, environmental protection, water, heat, gas, street lighting control, telecommunications, postal services, banking, transportation, railway, petroleum, petrochemical, marine and other industries. Technical parameters Features of the basic functions of GPRS Modem built SEIMENS, ZTE and Huawei wireless module smallest of similar products for embedded and integrated with energy-saving mode, suitable for mobile devices. Internal hardware and software watchdog, monitor operational status at any time, to ensure stable and reliable operation of interference is strong, well-shell package fast and easy to use, easy to install universal USb / RS-232 / RS-485 / TTL level interface using a simple AT command interface enables telephone, SMS, CSD and other services can be point to point, multipoint and CSD and other flexible networking timer detects whether a communication status. If a long time to stop communication, the device will reset to connect new status indication: Power status indication to bell instruction, data transceiver RF characteristics indicating features CDMA / EVDO: 450/800 / 1900Mhz WCDMA: 850 (900) / 1900 / 2100Mhz TD-SCDMA: 1880-1920 ~ 2010-2025 EDGE / GPRS: 850/900/1800 / 1900MHz SMS: MT, MO, CB and PDU mode messaging content: support for digital, voice, SMS and fax module reset: using AT commands or brownout reset electric power conditions and input voltage: 5 ~ 25V (standard 9V) SIM card operating voltage: 3V / 1.8V Current: talk mode: 300mA (. typ.) in idle mode: 3.5mA (maximum value) power saving mode :: 50μA (maximum) GPRS Modem average: 360MA Working temperature: -20 ℃ ~ 60 ℃ Storage temperature: -50 ℃ ~ 85 ℃ Humidity: ≤90% magnetic compatibility: Electrostatic discharge immunity test Grade: 3 RF electromagnetic radiation: Immunity Test Level: 3 Interface Volume Interface: standard USB / RS-232 / RS-485 / TTL level interface Antenna: 50ohm / SMA / Female shell package: good electromagnetic shield and the metal housing, durable anti-electromagnetic interference, high temperature heat capacity Serial: Volume: 75 * 50 * 16mm Weight: 200g USB: Volume: 100 * 60 * 25mm Weight: 240g Http://www.szweiyue.com