Datasheet > RXL2-433-4

RXL2-433-4

更新时间： 2025-09-01 03:14:15

品牌	Logo	应用领域
RADIOMETRIX		/
页数	文件大小	规格书
11页	593K
描述
UHF Multi Channel Transparent Data Link TX/RX

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中文翻译

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数据手册

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RXL2-433-4 数据手册

Radiometrix

Hartcran House, 231 Kenton Lane, Harrow, HA3 8RP, England

Tel: +44 (0) 20 8909 9595, Fax: +44 (0) 20 8909 2233

Issue 1, 30 April 2007

TXL2/RXL2

UHF Multi Channel Transparent Data Link TX/RX

The TXL2 and RXL2 modules are 9600baud

simplex multi channel OEM radio modems

in a Radiometrix SIL standard footprint,

operating on European 433MHz ISM band.

The TXL2/RXL2 pair act as a transparent

serial cable to attached host. Unlike raw

FM radio modules (e.g. TX2A/RX2A),

TXL2/RXL2 will take care of preamble,

synchronisation, bit balancing and error

checking along with automatic noise

squelching.

Figure 1: RXL2-433-9 radio modem receiver

The TXL2/RXL2 pair provides a one-way radio 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 units. 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 a TXL2/RXL2 can be set to 1 of 8 unique addresses.

As well as having unique addresses, the TXL2/RXL2 allow operation on one of 5 pre-set frequencies in

the 433MHz band. These frequencies are non-overlapping and simultaneous operation of TXL2/RXL2

pairs in the same area on different channels will be possible. Units are supplied on 433.925MHz (Ch0)

as default.

Features

•

Conforms to EN 300 220-3 and EN 301 489-3

High quality, stable crystal reference

Low noise synthesiser / VCO

SAW front-end filter

Multi-stage ceramic IF filtering

Single conversion superhet

Serial modem baud rate at 9600bps (simplex)

Addressable point-to-point

5 serial select wideband channels

Applications

•

PDAs, organisers & laptops

Handheld / portable terminals

EPOS equipment, barcode scanners

In-building environmental monitoring and control

Remote data acquisition system, data logging

Fleet management, vehicle data acquisition

Technical Summary

•

Operating frequency: 433.925MHz (default)

Modulation: 16kbps bi-phase FSK

Supply: 5V at 28mA transmit, 22mA receive/idle

Transmit power: +10dBm (10mW)

Receiver sensitivity: -107dBm (for 1% BER)

32 byte data buffer

Adjacent channel rejection: 60db @ ±320kHz

Receiver Blocking: >75dB

Radiometrix Ltd

TXL2/RXL2 Data Sheet

page 1

12 3 4 5 6 7...11

中文翻译

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