Hot sales / GSM modem /8 pots usb GSM SIM Modem for sending mass SMS MMS / quad band

Key Feature:

     Just like 8 single-channel equipments work at the same time

     insert 8 SIM cards(big or small)

     connection with the computer through a data line be integrated with Serial 8

     Each channel with separate power switch 
     Each individual module be demolished 
     industrial chassis, elegant shell

     GSM frequency: 900/1800 MHZ

     8 x SIM card(big/small) slots

     Wireless access to internet

     Comply with GSM phase2 standard

     Dual-band/Quad-band(optional)
     RS-232/USB interface(optional)
     8 SIM Card supported (Big/Small)
     Optional data,voice function
       send and receive English SMS&MMS  in bulk

Basic Feature:

     Asynchronous, transparent or non-transparent, to a maximum 14400 bits / s
     Baud Rate : 300-115200 bits / s
     Automatic baud rate: from 2400 to 19200 bits / s
     Fax support three
     Switched voice and fax
     V.42, V.42bis
     GPRS compatible
     WAP compatible
     SMA Antenna Interface
     SIM Card Outlet
     Power connector
     RS-232, the Mini-DB-9 connector
     AT command control ( GSM 07.07 and 07.05)

Application:

      Large shopping malls, supermarkets
      Professional market, large wholesalers
      Large hotels, large-scale entertainment
      Large agencies
      Transport, logistics industry
      Large enterprises, and institutions
      Large hospitals, large bookstore
      Newspaper, television and radio stations
      Oil Company ( other chain business model)
      Government agencies or large township

Hardware Feature:

     Support dual-band GSM: 900/ 1800 MHz

     Meet the ETSI GSM 2 + standards
     Class 4 ( 2W @ 900 MHz) Class 5 ( 1W @ 1800 MHz)
     5 -24 VDC power supply (which be directly connected to the nickel- metal

     hydride or lithium batteries)        
     Operating Temperature: -20 ° C - + 55 ° C
     Storage temperature: -25 ° C - + 70 ° C
     Size: standard 1U chassis