Products MiriAD 2000 Modules   General Description   Technical Data   Protocols   Ladder Diagram   Datalogging   Ordering Information   MiriMap2000+ Software   SMS & Paging Utility Radio Modems   900DR 9600 Baud   900SR 2400/4800   450DR 9600 Baud   450SR 2400/4800   Applications Mining & Industry Water Management Environmental Fire & Security Power Distribution

900DR Radio Modem Download a detailed data sheet for this product 900DR datasheet Miri Technologies offer a cost effective alternative to hard wired data transport. Transmit your data over radio with a fully integrated 900 MHz DATA RADIO MODEM designed for fixed point to point and multi-point applications. The 900DR is a Full Duplex 900 MHz Radio including a fully integrated 4800/9600 bps Data Modem and Antenna Diplexer. The entire unit including diplexer is housed in an attractive yet robust metal enclosure, providing a compact and reliable data distribution product which is both cost effective and easy to install. This complete package forms an attractively priced product for the transmission of data over Radio in fixed applications thus providing a viable alternative to costly networks of buried media such as cable or fibre for data transmission. Features Diagnostics Applications FEATURES Fully Integrated Full Duplex Radio and Modem Built in Antenna Diplexer Transparent Remote Diagnostic Facilities Unique Collision Avoidance Facilities Stream Routing for Multi-port & Transparent Remote Diagnostics Synchronous Interface with DDN Clocking Compatibility Custom Single Chip Modem 4800 & 9600 BPS Transfer Rates, Full Duplex Selectable 300-19K2 Async RS-232 Host Interface Integrated Supervisory Data Channel Software Selectable Configuration Parameters Internal Repeater Operation DIAGNOSTICS A large distributed network or even a simple point to point link requires comprehensive fault reporting and diagnostics to ensure a high level of availability. The 900DR series of Data Radio Modem products offer sophisticated inbuilt diagnostics. This capability allows the customer to remotely monitor and maintain their system, minimising the likelihood of failures, by pointing out component degradation and decreasing the time to diagnose and repair. There is no necessity to visit the master station or interfere with the host data integrity, other than additional data transfer. The facilities offered include the remote monitoring of; transmit power, RSSI measurement, temperature, supply volts, transmit frequency offset and the ability to reprogram any parameters such as power output, data rates etc. within any remote unit in the diagnostics communications group. In addition, the diagnostics data base allows the user to remotely perform a changeover of the duplicated base station (if used) offering real time on screen telemetry indication. APPLICATIONS Public Utility Telemetry Systems - Gas, Water, Electricity Supply Authorities, Railways, County Councils etc, where network status, system control, data collection and fault conditions are required to be known, and control or corrective action taken. Transaction Processing - Point of Sale Credit Terminals, Stock Control, Direct Order, Banks, Building Societies, Stock Brokers, Gambling Organizations, etc, where Point of Sale, inventory, credit, or transaction data requires collection and distribution. Alarm Monitoring - Fire, Power, Intrusion & Essential Services Alarm Reporting Common Carrier Data Services - The high speed, low cost and spectrum efficiency of this device make it eminently suited to all forms of Common carrier data networking.

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