Link transceiver. TDL2 Datasheet

TDL2 transceiver. Datasheet pdf. Equivalent

Part TDL2
Description UHF Transparent Data Link transceiver
Feature W E N Radiometrix Hartcran House, Gibbs Couch, Watford, WD19 5EZ, England Tel:.
Manufacture Radiometrix
Download TDL2 Datasheet

Hartcran House, Gibbs Couch, Watford, WD19 5EZ, England
Issue B, September 2004 Tel: +44 (0) 20 8428 1220, Fax: +44 (0) 20 8428 1221
UHF Transparent Data Link transceiver
The TDL2 is a 9600 baud half-duplex
OEM radio modem in BiM2 footprint,
operating on European 433MHz ISM
band. TLD2 acts as a transparent serial
cable to attached host. TDL2 is an
intermediate level OEM radio modem
which is in between a raw FM radio
module like BiM2 and a sophisticated
OEM radio modem like SPM2. It takes
care of preamble, synchronisation, bit
balancing and error checking along
with automatic noise squelching.
Figure 1: TDL2 radio modem
The TDL2 provides a half duplex link. Provided no two devices attempt to transmit simultaneously no
further restrictions on data transmission need be made, as all transmit timing, valid data identification
and datastream buffering is conducted by the unit. There is no Transmit Enable pin like BiM2.
Synchronisation and framing words in the packet prevent the receiver outputting garbage in the
absence of wanted RF signal or presence of interference. For multiple radio systems (polled networks) a
TDL2 can be set to 1 of 8 unique addresses (by default all units are shipped set to address 0).
433MHz version conforms to EN 300 220-3 and EN 301 489-3
Crystal controlled PLL stabilised VCO
SAW front-end filter
Single conversion superhet
Serial baud rate at 9600bps (half-duplex)
Addressable point-to-point
Data Present indication
Fully screened. Low profile
Handheld terminals
EPOS equipment, barcode scanners
Data loggers
Industrial telemetry and telecommand
In-building environmental monitoring and control
GPS systems
Vehicle data up/download
Technical Summary
Operating frequency: 433.925MHz
Modulation: 16kbps bi-phase FSK
Supply: 5V at 25mA transmit, 20mA receive/idle
Transmit power: +3dBm (2mW)
Receiver sensitivity: -105dBm (for 1% data error)
32 byte data buffer
Transmit power-up time: <4ms
Radiometrix Ltd
TDL2 Data Sheet
page 1

Radiometrix Ltd
TDL2 Data Sheet
page 2

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