ARF169 Radio Modems - User guide version V1.4
Register
0 : Asynchronous paquetized non secured
S222
2: Asynchronous paquetized secured
3: Continuous Asynchronous
S230
1 : Exit «RSSI frame» on UART
4 : Exit «permanent RSSI» on UART
S231
Command mode entry Timeout at 9.6kbps at product start-up.
S241
Re-emitting time out (when S222=2)
S243
Adjustable from 0 to 65535 by step of 1ms
S250
1 à 65535 : Guard time by step of 1 ms
S252
S253
Network address: from 1 to 254
Radio data rate valid only with continuous asynchronous
S254
S256
Broadcast function : 65535
Note1 : the Autobaud mode authorises the modem to synchronise itself at switching on to the speed of the serial link, provided it is configured
in 8 bits,1 stop bit, no parity.
To trigger this procedure the monitoring equipment must transmit, on the serial link, the character: <U> (see § 4.1 self-detection command).
After correct execution of the self-detection command, reading register S210 (ATS210 ?) will return the UART data rate value identified in the
table (value 3 to 7). It will be memorised on recognition of the AT&W command.
Note2 : in the absence of any other special request, the modem internal switches (factory settings) are set to the auto mode (identical to the
S215 Fisher position = 4).
Note3 : the UART data rate should be chosen as close as possible to the radio data rate.
This is to limit the use of the buffer memory zone and activation of the RTC/CTS UART data rate control signals. E.g. 1: for a radio data rate of
57.6Kbps (S254=8), the choice of UART data rate of 57.6Kbps (S210=6) would be ideal. E.g. 2: For a UART data rate of 9.6Kbps (S210=3), the
radio data rate of 9.6Kbps(S254= 3) is the best possible choice.
If it is not possible to bring the UART and Radio data rates close together the 1024 octet buffer memory will compensate for the differences in
speed, provided this difference is not significant and/or the size of the data for transmission is limited.
In all other cases, only the use of the UART data rate control (S216=1) enables the integrity of the data transmitted to be guaranteed.
Content
Radio protocol
RSSI mode:
0 : no RSSI
RF radiated power:
0 : 27 dbm
1 : 25 dbm
2 : 23 dbm
3 : 20 dbm
4 : 17 dbm
5 : 14 dbm
6 : 10 dbm
0 : disabled
1 : enabled
Repeater mode :
0 : no repeater
Source address (or local)
from : 1 to 65535
Network number
no network : 0
255=broadcast
mode:
1: 2,4Kbps
3: 9,6Kbps
6 : 38,4kbps
Destination address :
From 1 to 65534
Value by
default
3
0
0
1
0
0
Factory pre-ini-
Used in the addressed mode. This register contains the
tialized
0
1
In addressed mode, this register must be set with the
0
address of the modem to achieve.
Comments
address of the modem
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