Modes Of Operation - RDT RM96xx User Manual

Radio Modem Series
Features
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UHF FM Synthesised Radio Transceiver
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Transparent serial data transmission
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RS-232 & RS-485 Serial Data Interfaces
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6 modes of operation including
Asynchronous, Modem and Repeater
Brief Description
The RM96xx Series of Radio Modems are a range of UHF multi-channel transceivers, incorporating a GMSK
baseband modem and RS232/RS485 serial data interfaces.
As with all RDT Radio Modem products, the RM96xx provides fully transparent operation regardless of the
serial data protocol. Over-air speeds up to 16Kbps are achieveable and serial data can be input at various baud
rates up to 19,200bps.
Access to all user configurable parameters is possible using the on-board switches and operational status is
easily monitored using the standard LED indicators.
Models currently available include the RM96xx Modem Card for OEM customers, the RM96xxB Aluminium
housed model and the RM96xxE & EX, IP67 housed units with integral power supplies.
A brief summary of features includes addressing capability, user selectable RF power level and frequency of
operation, built-in repeater facility, Forward Error Correction (FEC), Automatic Repeat Request (ARQ),
MODBUS compatibility (ASCII & RTU) and Hayes Compatible mode.
The RM96xx utilises RDT's unique multi-channel UHF transceiver which is available as a separate module to
OEM customers wishing to take advantage of the superior design, built quality and performance for which our
products have a world-wide reputation.
Applications include Alarm Systems, Data Acquisition, Remote Metering, Remote Control Systems,
Warehousing and Despatch, SCADA, Security Systems, Video Surveillance Systems, Telemetry, Traffic
Information and Control Systems etc.
The RM96xx products carry the CE mark and meet various UK, European and world-wide radio approval
specifications including ETS 300 113, ETS 300 220 AND MPT1329. Details are available upon request.
RM96xx
User Manual
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User selectable RF channel, Address
and Tx power level
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LED indicators for radio functions, signal
strength and serial line status
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Forward Error Correction (FEC)
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Automatic Repeat Request (ARQ)
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