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PDF RX2M Data sheet ( Hoja de datos )
| Número de pieza | RX2M | |
| Descripción | UHF Narrow Band FM multi channel radio modules | |
| Fabricantes | Radiometrix | |
| Logotipo |  |
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NEW Radiometrix
Issue 3, 27 April 2007
Hartcran House, 231 Kenton Lane, Harrow, HA3 8RP, England
Tel: +44 (0) 20 8909 9595, Fax: +44 (0) 20 8909 2233
TX2M/RX2M
UHF Narrow Band FM multi channel radio modules
UK Version: TX2M-458-5/RX2M-458-5 (100mW)
European version: TX2M-433-5/RX2M-433-5 (10mW)
The TX2M transmitter and RX2M receiver modules
offer a low power, reliable data link in an industry-
standard pin out and footprint. This makes the
TX2M/RX2M pair ideally suited to those low power
applications where existing wideband modules have
insufficient range, or where multi-channel operation
is needed. Two versions are available, covering the
458.5-459.1MHz UK band (at 100mW) and the
European 433.05-434.79MHz band.
TX2I-458-5 transmitter
Features
433MHz version conforms to EN 300 220-3 and EN 301 489-3
and 458MHz version to MPT 1329 (UK specs)
Any custom band between 420MHz and 480MHz with 5MHz (AR0) frequency range
High performance double superhet, 128 channel PLL synthesizer with TCXO
Data rates up to 5 kbps for standard module
Usable range over 1km
Fully screened. Low profile
Feature-rich interface (RSSI, automatic noise squelch, analogue and digital baseband)
Incorporate a 1200baud dumb modem
Re-programmable via RS232 interface
Low power requirements
Applications
Handheld terminals
EPOS equipment, barcode scanners
Data loggers
Industrial telemetry and telecommand
In-building environmental monitoring and control
High-end security and fire alarms
Vehicle data up/download
Technical Summary
Size: 59 x 38 x 7mm
Operating frequency: 458.5-459.1MHz or 433.05-434.79MHz
23 channels in 458MHz band (128 channels max.)
Transmit power: +20dBm (100mW) nominal
Supply range: 4.5V - 16V
Current consumption: 100mA transmit, 13mA receive
Data bit rate: 5kbps max. (standard module)
Receiver sensitivity: -118dBm (for 12 dB SINAD)
Radiometrix Ltd
TX2M/RX2M Data Sheet
page 1
1 page  
TX2M and RX2M serial interface commands
2400 baud at RS232 level. 8 bit data, no parity, 1 start bit, 1 or 2 stop bits, No flow control.
Transmit (pin 3 on DB9) and Signal Ground (pin 5 on DB9) should be connected to PGM and 0V pin.
Command
Format
Description
SINGLE nnnnn
Set value of N for single channel operation
GOCHAN xx
Serial select of channel xx (0 to 127)
LOADMX xx
Set highest permitted (serial selected) channel xx (others default to ch0)
LOADaa nnnnn
Set value of N for channel aa (channels 0 to 15)
LOADTB nnnnn
Set value of N for channel 16 (channels 17 to 127 then in sequence)
RVALUE rrrr
Enter value for R register
SETPAR
Channel selected by 3 bit parallel input (0 to 7). Disable modem
SETSER
Channel selected by most recent GOCHAN operation
SETMOD
Enable internal modem. Frequency selected by most recent GOCHAN or SINGLE
GOTEST
250Hz test tone modulated transmission
<CR>
Process entry (Carriage Return = 0D hex )
/ Clear all buffers
xx = channel number from 00 to 127
aa = two digit channel number from 00 to 15
nnnnn = synthesizer N register value, (up to 65535)
rrrr = synthesizer R register value, (up to 16383)
N TX
=
f RF
f Channelspacing
=
433.050MHz
25kHz
= 17322
R=
fTCXO
fchannelspacing
=
13MHz
25kHz
,
So
R=520
N RX
=
fRF − 21.4MHz
fChannelspacing
=
433.050MHz
25kHz
−
21.4
= 16466
Channel
Number
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
F max
433MHz
band
433.050
433.075
433.100
433.125
433.150
433.175
433.200
433.225
433.250
433.275
433.300
433.325
433.350
433.375
433.400
433.425
433.450
434.775
N value for TX
/LOAD00 17322
/LOAD01 17323
/LOAD02 17324
/LOAD03 17325
/LOAD04 17326
/LOAD05 17327
/LOAD06 17328
/LOAD07 17329
/LOAD08 17330
/LOAD09 17331
/LOAD10 17332
/LOAD11 17333
/LOAD12 17334
/LOAD13 17335
/LOAD14 17336
/LOAD15 17337
/LOADTB 17338
/LOADMX 69
N value for RX
/LOAD00 16466
/LOAD01 16467
/LOAD02 16468
/LOAD03 16469
/LOAD04 16470
/LOAD05 16471
/LOAD06 16472
/LOAD07 16473
/LOAD08 16474
/LOAD09 16475
/LOAD10 16476
/LOAD11 16477
/LOAD12 16478
/LOAD13 16479
/LOAD14 16480
/LOAD15 16481
/LOADTB 16482
/LOADMX 69
458MHz
band
458.525
458.550
458.575
458.600
458.625
458.650
458.675
458.700
458.725
458.750
458.775
458.800
458.825
458.850
458.875
458.900
458.925
459.100
N value for TX
/LOAD00 18341
/LOAD01 18342
/LOAD02 18343
/LOAD03 18344
/LOAD04 18345
/LOAD05 18346
/LOAD06 18347
/LOAD07 18348
/LOAD08 18349
/LOAD09 18350
/LOAD10 18351
/LOAD11 18352
/LOAD12 18353
/LOAD13 18354
/LOAD14 18355
/LOAD15 18356
/LOADTB 18357
/LOADMX 23
N value for RX
/LOAD00 17485
/LOAD01 17486
/LOAD02 17487
/LOAD03 17488
/LOAD04 17489
/LOAD05 17490
/LOAD06 17491
/LOAD07 17492
/LOAD08 17493
/LOAD09 17494
/LOAD10 17495
/LOAD11 17496
/LOAD12 17497
/LOAD13 17498
/LOAD14 17499
/LOAD15 17500
/LOADTB 17501
/LOADMX 23
Please observe the following ERC/REC 70-03 (April 2004) Annex 1 recommendation when using the
Non-specific Short Range Device (SRD) band for Telemetry, Telecommand, Alarms, Data in general and
other similar applications.
Frequency Band
ERP Duty Channel Notes
Cycle spacing
E (433.050 - 434.790MHz)
10mW <10% No spacing Audio and voice signals should be
E1 (433.050 - 434.790MHz)
1mW <100% No spacing avoided in the band 433.050MHz -
E2 (434.040 - 434.790MHz)
10mW <100%
<25kHz
434.790MHz
Power density limited to -13dBm/10
kHz for wideband channels with a
bandwidth greater than 250 kHz
Radiometrix Ltd
TX2M/RX2M Data Sheet
page 5
5 Page 
Radiometrix Ltd
Hartcran House
231 Kenton Lane
Harrow, Middlesex
HA3 8RP
ENGLAND
Tel: +44 (0) 20 8909 9595
Fax: +44 (0) 20 8909 2233
www.radiometrix.com
Copyright notice
This product data sheet is the original work and copyrighted property of Radiometrix Ltd. Reproduction in wholeor
in part must give clear acknowledgement to the copyright owner.
Limitation of liability
The information furnished by Radiometrix Ltd is believed to be accurate and reliable. Radiometrix Ltd reserves the
right to make changes or improvements in the design, specification or manufacture of its subassembly products
without notice. Radiometrix Ltd does not assume any liability arising from the application or use of any product or
circuit described herein, nor for any infringements of patents or other rights of third parties which may result from
the use of its products. This data sheet neither states nor implies warranty of any kind, including fitness for any
particular application. These radio devices may be subject to radio interference and may not function as intended if
interference is present. We do NOT recommend their use for life critical applications.
The Intrastat commodity code for all our modules is: 8542 6000.
R&TTE Directive
After 7 April 2001 the manufacturer can only place finished product on the market under the provisions of the
R&TTE Directive. Equipment within the scope of the R&TTE Directive may demonstrate compliance to the
essential requirements specified in Article 3 of the Directive, as appropriate to the particular equipment.
Further details are available on The Office of Communications (Ofcom) web site:
http://www.ofcom.org.uk/radiocomms/ifi/
Information Requests
Ofcom
Riverside House
2a Southwark Bridge Road
London SE1 9HA
Tel: +44 (0)845 456 3000 or 020 7981 3040
Fax: +44 (0)20 7783 4033
European Radiocommunications Office (ERO)
Peblingehus
Nansensgade 19
DK 1366 Copenhagen
Tel. +45 33896300
Fax +45 33896330
www.ero.dk
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet RX2M.PDF ] | |
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