Communicator 2G universal. It includes plastic box. The communicator GS4005, allows to update almost any panel from RTC to 2G simulating a line of fixed telephony and changing GSM in case this one fails. Certificate EN50136. Antenna integrated to the circuit of the communicator, and connector for external optional antenna. Remote programming allows route DLS with head offices DSC. Update of firmware and local and remote programming. Direct communication with receptora. Contact admits GO for connections GPRS. It contains 6 programmable terminuses as lines of entry or exit.