M48A Application Board

M48A modem application board

The apps board presents the M48 modem, combined with a radio module (either USX or BiM/NiM family) and suitable interface circuits, power supplies and connectors. Optionally, the board can be housed in an EAS80 (or EAS120) extruded aluminium housing. In the simplest case, a pair of these units (with suitable aerials and power supplies connected, of course) can be connected directly to the serial ports of a pair of industrial PCs and the resulting wireless data link used without any further installation or programming.

Features

  • Maximum usage of the range capability of an RF module
  • 5kbps pulse duration coded protocol
  • Synchronisation codes and checksum to reduce false triggering on noise
  • Programmable transmit address and four receive addresses
  • Programmable timing parameters (preamble length, etc)
  • Programmable auxiliary serial output (to program radio modules)
  • Programmable serial modem baud rate (1200 - 76800 bps, half-duplex)
  • Addressable point-to-point and point to multi point
  • Packet acknowledge/resend (ACK) mode
  • Store and forward repeater function

Applications

  • Amateur Radio
  • Automatic remote Meter Reading (AMR)
  • PDAs, organisers & laptops
  • Multi-Use Radio Service (MURS)
  • Handheld / portable terminals
  • Remote operated vehicles
  • Data loggers
  • In-building environmental monitoring and control
  • Industrial (SCADA) telemetry and M2M systems
  • Fleet management, vehicle data acquisition

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