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 A

RF53 

User Guide  

 

 

Ref. 

08-07-V6-lmn 

     p 

11 

Channel selection 

S220 = 2: 

Frequency hopping over the whole 50 channels 

S220 = 3: 

Frequency hopping over the lower Sub Band 

S220 = 4: 

Frequency hopping over the higher Sub Band 

ATS200? =  

Viewing the hopping table (Channel numbers) 

Air radio rate selection 

S202 = 0: 

10 kbps Narrowband  

 

 

S202 = 1: 

57.6 kbps Wideband (Default) 

Channel rejection 

The graph below shows the typical channels rejection in WideBand (WB) and 

NarrowBand (NB) modes. 

10

20

30

40

50

60

70

80

-2000 -1750 -1500 -1250 -1000 -750

-500

-250

0

250

500

750

1000

1250

1500

1750

2000

frequency ste p / Fchannel (kHz)

re

je

c

ti

on (dB

)

WB

NB

 

 
N

OTES 

 

Particular attention is required for product installation. In the case where 

several links must works in the same area (independently of the channel 

positions), the minimum distance between 2 products belonging to different 

radio links is 3 meters. Even with this precaution (depending of the product 

environment), channel rejection could be reduced. 

TOP

Содержание ARF53

Страница 1: ...ARF53 Data modem User Guide ...

Страница 2: ...on photocopy without Adeunis RF consent This document is subject to change without notice All trademarks mentioned in this guide are the property of their respective owner ADEUNIS RF 283 rue Louis Néel 38920 Crolles France Phone 33 0 4 76 92 07 77 Fax 33 0 4 76 08 97 46 Ref 08 07 V6 lmn ...

Страница 3: ...EM DTE RS232 5 DCE RS232 6 RS485 wiring 7 Radio communication 9 Radio channels Sub bands 10 Channel selection 11 Air radio rate selection 11 Channel rejection 11 RSSI reading 12 Transceiver operating mode 12 Command mode 13 Transceiver state machine 14 AT Commands 15 Description 15 Set of commands 15 Register description 17 Specifications 21 Glossary 23 ANNEX Firmware updates 23 TOP ...

Страница 4: ...ARF53 User Guide Ref 08 07 V6 lmn p 2 About this document This guide describes the ARF53 devices their options and accessories TOP ...

Страница 5: ...articular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an out...

Страница 6: ...nk The products are available either in card version to be integrated in an assembly or as an IP65 chip In the IP65 case the products are fixed with the fixing lugs onto the top antenna and bottom stuffing box of the casing 4 screws not provided Product Power supply To perform wiring of these products the bottom part of the housing part with stuffing box has to be opened by unscrewing the two stai...

Страница 7: ...oltage source This voltage source must be 4 5V minimum and must not exceed 36 Vdc Green LED is ON when powered EASY CHECK Green LED is ON when modem is powered Serial link wiring MODEM DTE RS232 This is for example the case of a modem connected to a PC RTS and CTS are required only if flow control is used DC Supply RX TX ON RTS CTS TX TX RX RX ON 1 2 TOP ...

Страница 8: ... This is for example the case of a modem connected to a measuring device RTS and CTS are required only if flow control is used N SUB D 9 NOM Vcc 5 GND 3 RXD 2 TXD RX TX INHIB RTS CTS TX TX RX RX ON 1 2 8 RTS 7 CTS EASY CHECK Serial link activity will make the green LED flashing whatever the selected data rate is right or wrong TOP ...

Страница 9: ...d to RX on the PCB TX is connected to RX on the PCB ON 1 2 Figure 1 RS485 wiring In order to activate the RS485 management the SW1 1 switch MUST be ON and the S215 value MUST be 1 see the following table WARNING the SW1 1 switch is read only at the power up Changing the SW1 1 switch when the modem is already running will not be taken in account Table 1 R485 232 configuration settings S215 values S...

Страница 10: ...mitted over the RS485 differential bus the lines are asserted LOW Figure 2 DE RE timing when data are sent over the serial link Threshold minimum 1 µs Tde set according to the S219 register value see table hereafter S219 0 1 2 3 4 5 10 20 40 60 80 Tde min 15 µs 35 µs 65 µs 135 µs 150 µs 190 µs 330 µs 600 µs 1 1 ms 1 7 ms 2 3 ms In command mode a reply is sent back on the TXD line according to the ...

Страница 11: ...er the whole range but also selectable over up or down sub bands These modes can be selected using AT commands Wide Band transmission 3 modes FHSS over 25 or 50 channels 57 6 kbit s radio rate channel spacing 500 kHz Sensitivity 108 dBm Adjacent channel rejection see chapter Erreur Source du renvoi introuvable Narrow Band transmission 3 modes FHSS over 25 or 50 channels 10 kbit s radio rate channe...

Страница 12: ...ub Band High Sub Band 0 902 75 25 915 25 1 903 25 26 915 75 2 903 75 27 916 25 3 904 25 28 916 75 4 904 75 29 917 25 5 905 25 30 917 75 6 905 75 31 918 25 7 906 25 32 918 75 8 906 75 33 919 25 9 907 25 34 919 75 10 907 75 35 920 25 11 908 25 36 920 75 12 908 75 37 921 25 13 909 25 38 921 75 14 909 75 39 922 25 15 910 25 40 922 75 16 910 75 41 923 25 17 911 25 42 923 75 18 911 75 43 924 25 19 912 2...

Страница 13: ...w shows the typical channels rejection in WideBand WB and NarrowBand NB modes 10 20 30 40 50 60 70 80 2000 1750 1500 1250 1000 750 500 250 0 250 500 750 1000 1250 1500 1750 2000 frequency step Fchannel kHz rejection dB WB NB NOTES Particular attention is required for product installation In the case where several links must works in the same area independently of the channel positions the minimum ...

Страница 14: ... one to another product The operating temperature could also have an impact on these dispersions The RSSI level could also indicate the potential presence of any jammer in the used channel The RSSI is a necessary but not sufficient condition to get a correct reception Transceiver operating mode Two operating modes are available Command mode usage of AT commands Transceiver or normal mode serial da...

Страница 15: ...haracters is accepted only if no character have been seen before and after the sequence Register S214 defines the silence duration TIPS 1 if you are using a terminal such as Hyperterm you have to send the sequence using a text file first create a text file containing only the characters and then use in Hyperterm the command Send text file in the Transfer menu TIPS 2 Exiting command mode return bac...

Страница 16: ...bule are used for the radio reception The packet header contains the following fields packet length number of retries and packet number target address The CRC follows the data and check the integrity of the radio packet The Target Address field is set up with S256 register The Target Address value 0000 is a broadcast address In reception mode The Target Address field of the radio packet is checked...

Страница 17: ...haracters AT means Attention follow with one or several characters or other data Each command is ended with cr carriage return In the same command the time between 2 characters must be less than 10s EASY CHECK When receiving a right command modem will answer O cr ASCII character 0x4F for accepted command or OK command E cr for error Specific string when specified Set of commands Commands Descripti...

Страница 18: ...er default values Be careful When restoring USB DC supplied modem regs S231 RF power will become 3 which is incompatible with USB power supply ATPWD m m pin code register S205 unlock all AT commands m 0000 set registers to default value and unlock all AT commands Test modes ATT1 Pure Carrier data 0 transmission using current channel The output of this mode is achieved by reception of any character...

Страница 19: ...e modem have exactly the same registers configuration in term of hopping table S200 start channel S201 channel type S202 serial parameters S210 S211 S212 S213 handshake S216 protocol S220 and packet retries S221 It is recommended to have the same RF OUT level S231 Type Regi ster Function Description Default value Note Radio management R W S200 Hopping table Hopping table Default table 4 R W S201 S...

Страница 20: ...1 200 2 2 400 3 4 800 4 9 600 5 19 200 6 38 400 7 57 600 4 1 2 3 R W S211 Data length 7 7 bits 8 8 bits 8 2 3 R W S212 Parity 1 none 2 even 3 odd 1 2 3 R W S213 Stop bits 1 1 stop bit 2 2 stop bits 1 2 3 R W S214 Command timeout Time out duration for detecting the pattern unit 10ms From 1 10ms up to 100 1s 8 1 R W S215 Interface type 0 RS232 only 1 RS232 or RS485 managed DE RE lines RS485 if pin 6...

Страница 21: ...ltering incoming frame 0000 R W S256 Transmission address From 0 up to FFFF Used in addressed protocol only added to out coming frame 0000 Miscellaneous R W S205 Pin code Pin code value Value 0000 is not allowed 1111 R W S207 Pin code activation 0 pin code disabled 1 pin code enabled 0 NOTE 1 when a serial speed change is requested the S214 register value can be automatically set to a value greate...

Страница 22: ...rate 10 kbits s and serial baudrate equal to 57600 bauds for Wide band radio rate 57600 kbits s NOTE 3 when changing the serial link configuration rate parity stop bit the answer is done using the old serial link format the next command must be sent using the new serial format For avoiding character lost you should use the flow control S216 0 or use a serial rate lower to the radio rate or limit t...

Страница 23: ...mm Number of channels 50 FHSS channels Modulation FSK Packaging IP65 Box with integrated or external antenna Transmitter Programmable Frequencies 902 75 to 927 25 MHz through 500 kHz steps Programmable Radiated RF power Up to 27 dBm 500 mW Tx Rx consumption 3 2 W 0 27 W Receiver Receiver Sensitivity Down to 112 dBm for BER 10 3 Radio data rate from 10000 or 57600 bps RSSI available through AT comm...

Страница 24: ...on through Hayes commands Modes Transparent or Addressed mode full custom firmware on demand Embedded protocol ADEUNIS RF enhanced and versatile RF communications manager Embedded profiles Multimode modem Standards compliance FCC Part 15 247 fully certified modem Range up to 6 Km References ARF7474C Modem RS232 RS485 IP65 box ARF7474E Modem RS232 485 IP65 box with external antenna ARF7474G Modem U...

Страница 25: ...rum FIFO First In First Out WB Wide Band NB Narrow Band ANNEX Firmware updates Firmware Updates V2 02 Pin code added V1 0 Original version Firmware Updates V6 0 Pin code added LMN V4 0 NB configuration when leaving factory V3 0 RF power update EASY CHECK assertions Power Mgt suppress V2 0 Commands update V1 0 Original version TOP ...

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