Specification:
1.Supports standard GSM communication modes
2.DC5-35V Low power consumption
3.Supports 8 SIM cards (3V-5V)
4.Has 8 SMA antenna interfaces
5.Use French WAVECOM or Germany SIEMENS Module
6.Slide-on SIM storage
7.SMS Transmission Rate:4000~6000 pcs/hour(optional)
8.Wireless Modem Pool can realize the communication with computer via PCCOM or Emulational Programs such as Super Terminal
9.Supports GSM/GPRS EVDO  3G
10.Frequency G850/900/1800/1900MHz
11. Complies with ETSI GSM Phase 2+ standard
12. Class 4 (2W @ 900 MHz)
Class 5 (1W @1800/1900MHz)
13. Input Voltage 5V-24V
14. Working Temperature: -20 degree ~ +55 degree Storage Temperature: -25 degree ~ +70 degree

Functions:
1.can send SMS to large number of customers at same time
2.Support SMS receive and reply automatically
the record of SMS sending and receiving automatically
4.Easy to install and use
5.can compatible with many cards
6.can control SIM Card to send SMS by your requirements

Advantages:
1. Industrial design, can restart automatically when no signal or crash
2. Independent switch control for every port
3. Every port can demount separately , easy to maintain
4. 8 ports data lines integrated, convenient and beautiful
5. Voice frequency input and output independently for each port, supports access to microphone and sound