Before taking this item, please check whether your region is covered by anyone of GSM 900MHZ/1800MHZ.
GSM (Groupe Special Mobile) - Global System for Mobile communications - most popular standard for mobile phones in the world.
GSM 900 / GSM 1800 MHz are used in most parts of the world: Europe, Asia, Australia, Middle East, Africa.
GSM 850 / GSM 1900 MHz are used in the United States, Canada, Mexico and most countries of S. America.

Modem Pool is a pool of GSM modems that integrates with 8 of GSM modems together in one single box. The modem pool provides an efficiency way for management of numbers of modems. They have the same function with GSM modem in functionality. The modem pool has one USB interface to connect to your PC or Server, and then in the computer, the USB interface will be emulated to 8 com ports (RS232/ serial ports). You can use AT Command to control each of the modems in the modem pool. The strong and tough case can let you to apply to different critical environment for example high temperature and high electric magnetic field environment. It is the idle solution for large scale of production in wireless communication.

GSM Modem Product List
The whole product includes following list of articles:
1. One Power Supply Adapter (EU Plug)
2. One Date Line of USB Interface
3. 8 DB Antenna
4. One Modem Pool

Technical Parameters Specification for GSM Modem
1. Type
GSM Modem with industrial-grade Wavecom Q2303A module.
2. Technological Specifications
*Support dual frequency: GSM 900/1800MHz
*Conform to ETSI GSM 2+ standard
*Output Power:
Class4 (2W @ 900 MHz)
Class5 (1W @ 1800 MHz)
*Power Source: 5-24V DC
*Temperature Range:
-20 Centigrade Degree ~ +55 Centigrade Degree active status
-25 Centigrade Degree ~ +70 Centigrade Degree preserved condition
3. Basic Features
*USB Interface
*Control via AT Commands (GSM 07.07, 07.05)