LMR2 - Radiometrix

LMR2 UHF Narrow Band FM Low Cost multi channel radio modules

– LMT2 Pin 1a 2a 3a 4a 5a 1b 2b 3b 4b 5b Name Vcc 0V TXE TXD No pin P0/PGM P1 P2 P3 No pin Function 3.1 – 15V power supply (@ 10mW) 4.1 – 15V power supply (@ 100mW) Ground Transmit Enable (active low) DC coupled input for 3V CMOS logic. Rin=47kΩ Not present in LMT2 Parallel Channel select LSB Serial frequency programming / configuration1 Parallel Channel sel.

Features

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• Conforms to EN 300 220-3 and EN 301 489-3 High performance double superhet. PLL synthesizer with TCXO quasi-dc (peak sampling) data recovery circuit (for enhanced performance on unbalanced datastreams) SAW front-end filter Data rates up to 5 kbps for standard module Usable range over 1km Fully screened. Low profile Feature-rich interface (RSSI, analogue and digital baseband) Re-programmable via RS232 interface Low power requirements Applications
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• Handheld terminals EPOS equipment, barcode scanners Data loggers Industrial telemetry and telecommand In-buildi.