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Ref. 08-07-V6-lmn 

p. 19 

 

A

RF54  

User Guide  

 

Type 

Register  Function 

Description 

Default 

value 

Note

R/W 

S219 

RS485 delay 

Delay between DE activation and the first 

RS485 transmitted byte 

From 0 up to 160 

 

 

 

 

3 

 

Protocol

 

R/W 

S220 

Protocol 

‘2’= hopping all the band 

‘3’= hopping low band 

‘4’= hopping high band 

 

2 

 

R/W 

S221 

Packet retries 

Number of radio packet retries 

From 0 up to 2. It is mandatory to set 

S216 to 0 (hardware RTS) if S221 = 1 or 

2. 

 

0 

 

R/W 

S252 

Reception 

address 

From 0 up to FFFF 

Used in addressed protocol only, for 

filtering 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 

 

R/W 

S232 

Power 

management 

0 disable power management (STANDBY 

input) 

1 enable power management (STANDBY 

input) 

0 

5 

 
 

N

OTE 

1

  

when a serial speed change is requested, the S214 register value can be 
automatically set to a value greater or equal than the duration of three 

characters in the requested speed. 
 
 

 

Downloaded from 

Elcodis.com

 

electronic components distributor

 

Содержание ARF54

Страница 1: ...ARF54 UART TTL modules User Guide Downloaded from Elcodis com electronic components distributor ...

Страница 2: ... 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 Downloaded from Elcodis com electronic components distributor ...

Страница 3: ... Sub Bands 9 Channel selection 10 Air radio rate selection 11 Channel rejection 11 RSSI reading 12 Transceiver operating mode 12 Command mode 13 Transceiver mode 14 Transceiver state machine 14 Power management low power mode 15 AT Commands 15 Description 15 Set of commands 16 Register description 17 Specification 21 Glossary 22 ANNEX 1 Alternative mounting 22 ANNEX 2 Firmware updates 23 Downloade...

Страница 4: ...Ref 08 07 V6 lmn p 2 ARF54 User Guide About this Document This guide describes the ARF54 devices their options and accessories Downloaded from Elcodis com electronic components distributor ...

Страница 5: ... communication is half duplex The operating parameters of these radio transceivers serial link radio management can be fully updated through AT commands via the serial link Interface Mechanical specification The transceiver is available in only one format plugged module without antenna The PCB width is 12 10 mm Downloaded from Elcodis com electronic components distributor ...

Страница 6: ...module mechanical feature This module has been designed to be plugged as describe above If this assembly doesn t suit your requirement please have a look to Annex 1 mainly for horizontal mounting Downloaded from Elcodis com electronic components distributor ...

Страница 7: ...wn management 16 GPIO1 PC0 I O Extended general purpose I O 13 GPIO2 PC1 I O Extended general purpose I O RS485 14 GPIO3 PC2 I O Extended general purpose I O 11 GPIO4 PC3 I O Extended general purpose I O RS485 12 GPIO5 PC4 I O Extended general purpose I O RS485 9 GPIO6 PC5 I O Extended general purpose I O or I input only for the American version 6 GPIO7 PD5 I O Extended general purpose I O RS485 1...

Страница 8: ...nded functionality RS485 interface The S215 register allows enabling the management of the control lines RE and DE lines of most RS485 buffer The following figures illustrate the RS485 wiring and the configuration required for activating the DE and RE management Even one line is sufficient for more flexibility two different lines could managed the DE and RE RS485 control lines Hereafter a connecti...

Страница 9: ...lines management Outp ut Outp ut Outp ut Input 1 VDD Input RS232 configuration Input Input Input Input 0 Input Input RS232 configuration Input Input Input Input Table 1 R485 232 configuration settings By default the DE and RE lines are asserted LOW allowing the reception of characters from the RS485 differential bus The DE and RE lines are asserted HIGH only when one or several characters have to ...

Страница 10: ...re 2 DE RE timing when data are sent over the serial link Thold 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 20 µs 40µs 60 µs 80 µs 100 µs 110 µs 250 µs 480 µs 900 µs 1 3 ms 1 7 ms In command mode when a reply is sent back on the TXD line according to the following DE RE timing Figure 3 DE RE timing when a reply is sent back ...

Страница 11: ...Adjacent channel rejection see chapter channel rejection Narrow Band transmission 3 modes FHSS over 25 or 50 channels 10 kbit s radio rate channel spacing 500 kHz Sensitivity 110 dBm Adjacent channel rejection see chapter channel rejection This module is designed to operate according to FCC Part 15 247 NOTE when delivered this modem is set up in Narrow Band to optimize the range The RF out power c...

Страница 12: ... 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 25 44 924 75 20 912 75 45 925 25 21 913 25 46 925 75 22 913 75 47 926 25 23 914 25 48 926 75 24 914 75 49 927 25 Figure 4 channels 1 Sub Bands Channel selection S220 2 Frequency hopping over the whole 50 channels S220 3 Frequency hopping over the lower Sub Band ...

Страница 13: ...0 500 250 0 250 500 750 1000 1250 1500 1750 2000 frequency step Fchannel kHz 40 50 60 70 80 rejection dB WB NB 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 pr...

Страница 14: ...ng 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 obtain a correct reception Transceiver operating mode Two operating modes are available 1 Command mode usage of AT commands 2 Transceiver or normal mode serial data are transmitted on radio ...

Страница 15: ...cepted 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 Idle line for S214 duration consecutive Idle l...

Страница 16: ... 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 if different of 0000 with the reception address S252 If the radio packet address matches the transceiver reception address S252 DATA a...

Страница 17: ... must be set to 0 ATS232 0 cr The STANDBY pin is not managed AT Commands Description AT commands are interpreted only when the transceiver is in Command mode Command are used to read and update the modem parameters A command starts with the 2 ASCII AT characters AT means Attention follow with one or several characters or other data Each command is ended with cr carriage return Response is sent bac...

Страница 18: ... Sxxx y cr lf for each register AT V Software version display The response has the following format Adeunis RF Versatile Modem II 915 MHz 500mW Vxx yy cr lf ATR Restore the register default values 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 ...

Страница 19: ...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 Register Function Description Default value Note Radio management R W S200 Hopping table Hopping table Default table 4 R W S201 Start channel Start channel numb...

Страница 20: ...8 400 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 tied to ground 1 R W S216 Handshake 0 har...

Страница 21: ... addressed protocol only for filtering 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 R W S232 Power management 0 disable power management STANDBY input 1 enable power ...

Страница 22: ...audrate greater or equal to 9600 bauds for Narrow band radio 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 S...

Страница 23: ...g capability Transceiver multi modes Secured or Addressed Programmable Frequency 902 to 928 MHz North America Channelization Adjusted to improve sensitivity wide and narrow band Programmable Radiated RF power Up to 500 mW 27 dBm Sensitivity Down to 108 dBm BER 10 3 Operating range open space External antenna up to 6000 m RSSI level RF signal qualification Operating voltage Regulated 3 3V nominal 3...

Страница 24: ... not recommend this use to keep the radio stability of the module Some references of connector Module header Vertical Male header Antelec ref AM2D 200 26 6 G Motherboard receptacle Vertical Female receptacle Through Hole Antelec ref AF2D 200 26 G Right Angle Female receptacle Through Hole Antelec ref AF2C 200 26 49 G Vertical Female receptacle Surface Mount Antelec ref AF2D 200 26 G CMS Right Angl...

Страница 25: ...es Firmware Updates V2 02 Pin code added Document Updates V6 0 Pin code added LMN V4 0 NB configuration when leaving factory electrical specification VIx VOx V2 0 Commands update V1 0 Original version Downloaded from Elcodis com electronic components distributor ...

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