Mercury 228

APPLICATION

Mercury 228 is a GSM-gateway designed to provide remote access to a device or a group of devices equipped with serial RS-485 interfaces. The gateway connects to the RS-485 network and provides remote access to each device in the network via the GSM channel. Moreover the devices can differ in types, protocols and communication parameters.

In order to make the full use of GSM-channel bandwidth capacity the gateway implements a packet mode of data communication with preliminary buffering of data packets transmitted and received by the control station software. Thus it is not ‘transparent’ for third-party software and requires software modification for proper commands system. However its application allows accelerating data exchange with remote devices 5-10 times compared to conventional GSM-terminals connected from the side of terminal devices. The GSM-gateway requires no configuration and it is ready for operation immediately after power supply and registration with a mobile operator.

In the Mercury-AMI (Advanced Metering Infrastructure) AMR/AMI system the GSM-gateways Mercury 228 are used for data communication from geographically distributed Mercury 225 concentrators and Mercury electricity meters to a control station as well as for concentrators remote configuration.