TR2M ETC2 [List of Unclassifed Manufacturers], TR2M Datasheet - Page 10

• Manufacturer Part Number: TR2M
• Description: Narrow Band FM Multi-channel UHF Transceiver
• Manufacturer: ETC2 [List of Unclassifed Manufacturers]

Transceiver Variants
TR2M is designed to be pin and polarity compatible with existing industry standard modules. Analogue
and Digital Data Output are inverted relative to original transmitted signal in Receive Mode.
The transceiver is available in two variants – TR2I and TR2M
TR2M, in Transmit Mode, frequency modulates the carrier frequency in the normal sense whereby
higher modulating voltage increases the carrier frequency and lower modulating voltage decreases the
carrier frequency which results in an inverted Analogue and Digital Data output on the TR2M in
Receive Mode. This will be the standard module and exact plug-in replacement for existing industry
standard modules.
TR2I, in Transmit Mode, reverses the Frequency Modulating order whereby the higher modulating
voltage decreases the carrier frequency and lower modulating voltage increases carrier frequency which
results in non-inverting Analogue and Digital Data output on the receiver. This variant can be used for
applications where data inversion will be problematic.
Ordering information
Part Number
TR2M-433-5
TR2I-433-5
TR2M-458-5
TR2I-458-5
TR2M-458-10
TR2I-458-10
Radiometrix Ltd
Figure 8: Data polarity change from TR2M (in transmit mode) to TR2M (in receive mode)
Figure 9: Data polarity change from TR2I (in transmit mode) to TR2I (in receive mode)
Description
TR2M transceiver (inverting receiver)
TR2I transceiver (inverting transmitter & receiver) 433.05MHz-434.790MHz
TR2M transceiver (inverting receiver)
TR2I transceiver (inverting transmitter & receiver) 458.525MHz-459.100MHz
TR2M transceiver (inverting receiver)
TR2I transceiver (inverting transmitter & receiver) 458.525MHz-459.100MHz
(TX mode)
(TX mode)
TR2M
TR2I
3V
0V
modulation
modulation
TR2M Data Sheet
No
No
0V
3V
Frequency band
433.05MHz-434.790MHz
458.525MHz-459.100MHz
458.525MHz-459.100MHz
(RX mode)
(RX mode)
TR2I
TR2M
Data slicer
Data slicer
AF
AF
RXD
RXD
Data rate (max)
5kbps
5kbps
5kbps
5kbps
10kbps
10kbps
Vcc
Vcc
page 10