Microhard Systems MHX-910A, Руководство по эксплуатации

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2 MHX 910A Operating Manual: Chapter 1 Introduction
1.1 Features
Key features of the MHX-910A include:
„ transmission within a public, license-exempt band of the radio
spectrum
1
– this means that it can be used without access fees
(such as those incurred by cellular airtime);
„ Transparent, low latency link providing true 115.2 kbps
continuous throughput
„ Communicates with virtually all PLCs, RTUs, and serial
devices through RS232, RS422 and RS485 interface
„
3.3V or 5V logic level compatibility
„ Industrial temperature specifications
„ Supports point-to-point, point-to-multipoint, Store and Forward
Repeater, TDMA, Multimaster
„ Maximum allowable transmit power, (1W)
„ Low power consumption in Sleep Mode (Real-Time Clock
wakeup)
„ 32-bit CRC, selectable forward error correction with
retransmission
„ Separate diagnostics port - transparent remote diagnosis and
online network control
„ Backwards Compatible with MHX-910
„ ease of installation and use – the MHX-910A module uses a
subset of standard AT style commands, very similar to those
used by traditional telephone line modules.
While the typical application for the MHX-910A is to provide a short- to
mid-range wireless communications link between DTEs, it can be adapted to
almost any situation where an asynchronous serial interface is used and data
intercommunication is required.
1
902-928 MHz, which is license-free within North America; may need to be factory-configured
differently for some countries.