• Automatic/continuous WCDMA/GPRS Link Management
• Support Modbus RTU protocol to connect to Max 3 Modbus RTU devices via RS-485 port
• Support M2M OPC server for SCADA system
• Easy-to-use API tool for users to develop their applications by various program development tools
• Be the WCDMA/GPRS I/O devices
• Local I/O linkage function to make the simple local control
• Support 3.7V Li-ion Battery backup
• Power supply 10 ~ 30 VDC

The M2M RTU center software with friendly Graphic interface is to manage the WCDMA/GPRS RTU products easily. Users can monitor the I/O data and status of WCDMA/GPRS RTU devise by the interface on PC. By using the M2M RTU API tool and M2M RTU center software, any remote monitoring system can be achieved easily and efficiently. For SCADA system, the M2M.OPC server is provided to connect to SCADA by OPC interface.

• Easy to Establish WCDMA/GPRS Network Applications
  It is a big headache for engineers to establish the WCDMA/GPRS applications because the dynamic IP management is required. Applying GT-540-3GWA and M2M RTU center software, the dynamic IP addresses can be managed between them. The remote WCDMA/GPRS RTU product would connect to M2M RTU Center automatically. Therefore, all remote WCDMA/GPRS RTU devices can be managed by s single centralized M2M RTU Center software with a fixed IP address. Moreover, there are M2M API tool and OPC server for engineers to develop the WCDMA/GPRS applications by VB, VC or SCADA development tools conveniently without any IP address management effort.
• Active data transmission
  GT-540-3GWA with active I/O transmission mechanism can raise the communication. Unlike the traditional poll communication, it would transfer the data by the defined time, DI trigger or AI hi/lo alarm. In addition to improve the way of communication, that can also reduce the AP effort.
• Transfer data by e-mail
  Expect for the transferring data by the general communication with the M2M RTU center, users can choose the e-mail mode to send these data by e-mail over WCDMA/GPRS in the fixed time.
• Modbus RTU device connectivity
  GT-540-3GWA is built-in Modbus RTU protocol. That can make any Modbus RTU device connect to GT-540-3GWA. By the way of GT-540-3GWA, Modbus RTU devices can be used in WCDMA/GPRS remote system. The max Modbus RTU device can be connected to GT-540-3GWA is three.
• Simple Local I/O link Control
  There are I/O built-in WCDMA/GPRS devices of ICP DAS. Therefore, these products can be the WCDMA/GPRS I/O devices. Expect for these local I/O data can be sent to the host PC, the I/O link function of them help users to do the simple control in local field. For example: the DI trigger or high/low AI alarm can driver the DO channel.
• Built-in I/O Data Logging
  GT-540-3GWA provides an external SD interface. These local I/O and Modbus data are recorded in SD memory card for one day in a single file.