V i t a l W e l l E l e c t r o n i c s P t e L t d
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CHAPTER VI ADDRESSED SECURED MODE
The addressed secured mode is similar to a addressed mode, but with
acknowledgment handling on the radio.
VI.1 Operation
Addressed secured mode
’
s purpose is to offer an optimal radio link quality.
Compared to the addressed mode, the addressed secured mode therefore
includes the additional feature to retransmit the data frame in case of radio
collisions.
All the address handling method is identified with the addressed mode. And, the
radio acknowledgment handling method is identified with the transparent secured
mode.
The software flow control (Xon/Xoff) can be enabled (ATS101=1) on its serial link.
VI.2 Examples - Configuration with AT commands
User
+++
// Switch to Configuration mode
Modem
>
User
ATS120=192.168<CR> // Set network ID to 192.168
Modem
>
User
ATS121=10<CR>
// set device id to 10
Modem
>
User
ATS122=11<CR>
// set default destination id to 11
Modem
>
User
ATS124=3<CR>
// Addressed Secured mode
Modem
>
User
ATS125=3<CR>
// set the retries=3 in case of collision
Modem
>
User
ATS126=0<CR>
// no address header, data will be sent to the default
Modem
>
User
ATS127=0<CR>
// no echo back host for the acknowledge
Modem
>
User
ATO<CR>
// Switch to operating mode
Modem
Good Bye!
