Product category:
Wireless Communications
News Release from: Sequoia Technology | Subject: GPRS transceiver
Edited by the Electronicstalk Editorial
Team on 17 June 2003
Wireless comms are a sign of the times
Roadside traffic management signs can now be updated quickly and cheaply using the latest GPRS cell phone technology, following the development of a compact and rugged wireless transceiver.
Roadside traffic management signs can now be updated quickly and cheaply using the latest GPRS cell phone technology, following the development of a compact and rugged wireless transceiver by Sequoia Currently being trialled at an English local authority, the Sequoia GPRS wireless transceivers are a plug-in replacement for existing conventional wire line modems, and eliminate the need to connect signs to the fixed telephone network for updating
This article was originally published on Electronicstalk on 21 Mar 2001 at 8.00am (UK)
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A cellular connection can be obtained at low cost for the units, using competitively priced 'SIM-only' deals from any of the four major operators.
The Sequoia GPRS transceiver goes inside the existing street sign assembly.
Its 190 x 120mm case is IP66 rated.
The unit is designed to connect to direct to the sign control circuitry, as a drop in replacement for a wired modem.
As the transceivers offer bidirectional communication at up to 115Kbit/s, the sign can feed back status information as well as receive updates.
Power consumption for the units is minimal - and is further reduced when in standby.
Sequoia Technology is running a series of seminars on the applications of cell phone technologies such as GSM, GPRS and GPS in traffic management, vehicle navigation and remote monitoring.
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