M Series: MR450 Remote Data Radio
Overview
For dependable professional data radio communications in SCADA and Telemetry systems at the lowest possible cost, the solution is Trio’s MR450.
Highly versatile, the compact MR450 has price/performance optimized versions to suit the widely varying needs of such typical applications as fresh or waste water management and industrial control automation. Rugged construction and full -30C to +60C operational capability make it suitable for the harshest environments.
Even though it comes at a low price, the simplex/half duplex MR450 has the most commonly sought-after features, yet is still easy to configure and use. Where additional system features may be required, Trio offers it’s compatible E Series - the world’s most advanced family of data radio products.
The MR450 is complemented by matching full duplex base and repeater stations, including a redundant hot standby version. Local and remote diagnostics are optionally available to assist in commissioning and troubleshooting.
The MR450 comes with a system Port Adaptor for simultaneous access to the system port and data port as well as a DIN Rail Mounting option.
Features
Radio
- 395-520 MHz operation
- 0.1 to 5 watt transmitter output power
- Software selectable Tx and Rx frequencies
- Simplex or half duplex operation with any Tx-Rx splits
- One model suitable for 12.5 and 25 kHz channel spacing
- Synthesized digital data radio design
- Professional N Type antenna connector
Data Modem
- Fully integrated DSP based data modem
- High data integrity - CRC error checking
- MultiStream™ simultaneous data streams allow for multiple vendor devices/protocols to be transported on the one radio network
- Internal repeater operation - single radio store and forward
- ChannelShare™ unique integrated C/DSMA collision avoidance technology permits simultaneous polling and spontaneous alarm reporting operation in the same system
- User configurable 300-38,400 bps asynchronous RS-232 port
- Transparent 3 wire RS-232 user interface
- Compatible with most industry standard data protocols, e.g., MODBUS, DNP-3, IEC 870-5-101 etc.
Network Management and Remote Diagnostic (In
conjunction with TVIEW+™ Software)
- Separate simultaneous local diagnostics/ configuration interface
- Remote fully transparent Network Management and Diagnostics
- Network wide operation from any radio modem
- Full SCADA style features such as database, trending and networking
- Over-the-air modem re-configuration
- Full graphical presentation (HMI)
General
- Operation from -30 to +60 °C
- DIN Rail Mounting option
- Hazardous Environment Certification - Class I, Division II (Groups A,B,C and D)
- 13.8 Vdc supply voltage
- Low power consumption &
Enhanced Sleep Modes & Fast Wake Up Time
- Compact footprint
- Rugged die-cast alloy chassis
- Multi function LED status display
- Field upgradable firmware
- Windows based configuration software
System Port Adaptor
Included with the MR450 is the system port adaptor which provides easy access to both the system port and the data ports simultaneously. Neat and compact, this adaptor splits the one connector into two usable ports to allow diagnostics or programming without disconnecting the user RTU/PLC data.

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