User Manual

Appendix C Hayes AT Command Reference
RFI-9256 Radio Modem User Manual Page 87 of 96
C.2.31 “ATS102” Set Port Data Bits
S-register 102 sets the number of data bits used by the connected serial port. There are two options for the
number of data bits:
 ATS102=7<CR> : Seven data bits.
 ATS102=8<CR> : Eight data bits.
The value store in s-register 102 will not be applied immediately. It will only become active once the AT&W1
command is executed.
C.2.32 “ATS103” Set Port Stop Bits
S-register 103 sets the number of stop bits used by the connected serial port. There are two options for the
number of stop bits:
 ATS103=1<CR> : One stop bit.
 ATS103=2<CR> : Two stop bits.
The value store in s-register 103 will not be applied immediately. It will only become active once the AT&W1
command is executed.
C.2.33 “ATS104” Set Port Flow Control
S-register 104 sets the flow control mode of connected serial port. There are three options for the flow
control mode:
 ATS104=0<CR> : Flow control disabled.
 ATS104=1<CR> : Software (XON/XOFF) flow control.
 ATS104=2<CR> : Hardware (RTS/CTS) flow control.
The value store in s-register 104 will not be applied immediately. It will only become active once the AT&W1
command is executed.
C.3 ‘%’ Register Commands
C.3.1 “AT%20” Set Unit Name
The AT%20 command sets the unit’s name. A unit name can be between 0 and 16 alphanumeric characters.
 AT%20=South<CR> : Sets the units name to “South”.
 AT%20=<CR> : Clears the unit’s name (sets it to an empty string).