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Modbus Organization

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RFM (acquired Cirronet)

ZigBee wireless Modbus gateway, ZG-2400M

Type:  Network Gateway
Description:  The ZG-2440M functions as a ZigBee network coordinator as well as a takeout point for the ZigBee network. The ZG-2400M supports multiple levels of routers to create sophisticated mesh networks that are self-forming and self-healing.
Connectivity:  Modbus
Features:  The ZG-2400M fits into existing Modbus networks by accepting Modbus commands, translating them into ZigBee format and sending them to the appropriate ZigBee end device or router. A typical installation will find the ZG-2400M connected to a Modbus PLC through its half-duplex RS-485 or full duplex RS-232 serial port. Instead of Modbus network wiring, the wireless ZigBee network connects the various sensors and actuators with the PLC.
Specifications:  Connectors: Serial Port DB9; Antenna Connection: Reverse SMA; Power: Two Pin Screw Terminal; RF Frequency: 2400 - 2483.5 MHz; Spreading Method: Direct Sequence; Modulation: O-QPSK; Transmit Power: +18 dBm into 50 ohms/100mW with provided dipole antenna; Receive Sensitivity: -94 dBm for 10-5 BER; RF Channels: 16; RF Data Rate: 250 Kbps; I/O: Full Duplex RS-232, Half Duplex RS-485; Operating Voltage: +9Vdc ? +50Vdc; Current Consumption: 120mA@9Vdc; Operating Temperature: -40?C to +70?C