Product category:
Wireless Communications
News Release from: Adcon Telemetry | Subject: M868-500 PowerLink
Edited by the Electronicstalk Editorial
Team on 10 April 2003
Wireless modem sends serial signals up
to 4km
The M868-500 PowerLink is a single-channel wireless modem designed to provide reliable, long range data transfer in a wide range of applications including industrial remote control.
The M868-500 PowerLink from Adcon Telemetry is a single-channel wireless modem designed to provide reliable, long range data transfer in a wide range of applications including industrial remote control, automation, and agricultural and environmental monitoring In addition to the packaged M868-500 unit, Adcon also offers the B868-500 - an OEM radio board version of the modem
This article was originally published on Electronicstalk on 5 Mar 2003 at 8.00am (UK)
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Operating in the licence free 868MHz ISM frequency band, both the M868-500 and B868-500 have a transmitting power output of 500mW enabling them to achieve a line of sight range of more than 4km.
The units have a half-duplex radio datarate of 20Kbit/s and use Hayes commands to provide easy parameterisation of their versatile functions.
Both are able to operate in either transparent mode, verified transparent mode, addressed secured mode, I/O copy mode, stand-by mode or RTS/CTS.
The M868-500 features a standard RS232 interface and is powered by an integrated 7.5V rechargeable battery.
Alternatively, a special dongle can be used to connect it to an external supply of between 8 and 40V.
The dongle also provides additional RS422 and RS485 interfaces.
The B868-500 radio board requires a 3.6V power supply, and in addition to an RS232 interface, features digital and analogue I/Os to process, for example, sensor data or incoming alarm signals.
The board has dimensions of just 107 x 52 x 14mm enabling it to be easily engineered into an existing customer product housing.
Housed in an IP54 rated enclosure and with an operating temperature range of -10 to +55C, the M868-500 can be operated in the most demanding environments.
Careful design has resulted in both products having very low overall power consumption, just 15uA in standby mode.
This gives long battery life that makes the M868-500 ideal for remote or difficult access applications where no external power source is available.
Further key features of the M868-500 and B868-500 include a serial datarate of between 2400 and 38,400baud and an intelligent microcontroller that has 32Kbyte of programmable memory and 2Kbyte of RAM.
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