Appendix C Hayes AT Command Reference
RFI-9256 Radio Modem User Manual
Page 93 of 109
C.2.9
“ATS42” Network fail timeout
S-register 42 sets the network fail timeout. The network fail timeout is the amount of time that must pass
with no data being received on a slave for it to give up trying to communicate with its master and return to
hunting for a connection. The network fail timer is configurable between 100 and 30000ms.
ATS42=15000<CR>
: Sets the network fail timeout to occur after 15 seconds without contact
between the slave and the master.
C.2.10
“ATS43” Online requests timer
S-register 43 sets the online request timer. The online request timer is the time between automatic
background polling between point-to-point and Hayes dial-up units to ensure that connections still exist. It
can be configured to between 100ms and 30000ms, and must be less than the network fail timer. For more
information about online requests see section 5.3.6 on page 39.
ATS43=400<CR>
: Sets the radio to check for online status every 400ms.
C.2.11
“ATS44” Hopping Pattern Sequence
S-register 44 sets the hopping pattern sequence number used by the radio. All radios on a single network
must have the same hopping pattern sequence number in order to communicate. Valid values are between 0
and 31.
ATS44=27<CR>
: Sets the hopping pattern sequence number to 27.
C.2.12
“ATS45” Max TX Power
S-register 45 sets the maximum transmit power of the radio. The only valid formats for setting the maximum
transmit power are:
ATS45=0<CR>
: Sets the maximum transmit power to 0dBm.
ATS45=10<CR>
: Sets the maximum transmit power to 10dBm.
ATS45=20<CR>
: Sets the maximum transmit power to 20dBm.
ATS45=25<CR>
: Sets the maximum transmit power to 25dBm.
ATS45=30<CR>
: Sets the maximum transmit power to 30dBm.
C.2.13
“ATS47” Frame Time
S-register 47 sets the frame time in milliseconds. The only valid frame time values are:
ATS47=5<CR>
: Sets the frame time to 5ms.
ATS47=8<CR>
: Sets the frame time to 8ms.
ATS47=10<CR>
: Sets the frame time to 10ms.