Product category:
Wireless Communications
News Release from: Radiometrix | Subject: TDL2 transparent data link transceiver'
Edited by the Electronicstalk Editorial
Team on 30 March 2005
Data link transceiver supports existing
systems
The TDL2 transparent data link transceiver's 'transparent' operation means that it will support existing software and systems in a wide range of industrial and commercial applications.
Low power radio specialist Radiometrix has just announced the launch of its new TDL2 transparent data link transceiver The TDL2's 'transparent' operation means that it will support existing software and systems in a wide range of industrial and commercial applications
This article was originally published on Electronicstalk on 15 Jul 2008 at 8.00am (UK)
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Low-power transmitter comes in a compact package
Miniature PCB mounting UHF radio transmitter allows designers to create a simple datalink capable of supporting rates of up to 40Kbit/s at distances up to 300m across open ground.
Single board provides wireless RS232 interface
Two units can be used as a serial RS232 cable replacement in many 9600baud half-duplex applications.
This transceiver is a fully screened 9600 baud half-duplex OEM radio modem operating at 433.925MHz and it complies with EN 300 220-3 and EN 301 489-3.
Acting as both 'transparent' serial cable to the host, as well as an intermediate level OEM radio modem, the innovative TDL2 therefore combines the characteristics of a raw FM radio module - such as Radiometrix's own BiM2, and a sophisticated OEM radio modem such as the company's SPM2.
Its purpose is to provide preamble, synchronisation, bit balancing and error checking, as well as automatic noise squelching, making it the perfect choice for a wide range of remote control, monitoring or instrumentation applications.
Radiometrix's TDL2 ensures that no two devices can simultaneously transmit.
It also ensures that no further data transmission restrictions can occur, because all transmit timing, valid data identification and datastream buffering is carried out by the transceiver.
Synchronisation and framing words in the packet prevent the receiver outputting 'garbage' if there is either interference or RF signal absence.
The TDL2's compact size and low profile of 33 x 23 x 7mm makes it ideal for low power radio applications where space is limited.
These include, typically, industrial telemetry and telecommand systems, plus datalinks for handheld terminals, EPOS equipment, barcode scanners and data loggers.
Other applications include in-building environmental monitoring and control systems, high-end security and fire alarms, as well as GPS and also vehicle data up/download systems.
TDL2 specifications in brief - the TDL2 is a highly integrated single conversion superhet device with crystal-controlled PLL stabilised VCO, and a surface acoustic wave (SAW) front-end filter for optimum image rejection and large signal handling.
Also featured are data present (CTS) indication, a transmit power of 0dBm (1mW), a receiver sensitivity of -105dBm (for 1% data error) and a 32 byte data buffer.
The transmit power-up time is <4ms and overall link latency is <15mS.
Power supply requirements are 5V at 25mA (transmit), 20mA (receive/idle). Request a free brochure from Radiometrix ...
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