455U-D Radio Modem
User Manual
Page
72
©
Jan 2016
Appendix A
Hayes Commands
The following details all of the Hayes commands supported by the 455U-D. Default settings
are shown by a “dot”,
Command Function
ATA
Answer Incoming Call – The modem can also be set to answer incoming calls
immediately or after a certain number of attempts. (See S-Register S0)
ATB
Set Radio Baud Rate – Radio Baud rates are 1200, 2400, 4800, 9600 and 19200
baud. Some baud rates may not be possible for some country codes. The baud rate
selected depends on the radio bandwidth setting (AT\N0 or AT\N1)
With Narrowband radio
(AT\N1 selected)
With wideband radio (AT\N0 selected)
B0
Set 1200 baud
Set 2400 baud
B1
Set 2400 baud
Set 4800 baud
B2
Set 4800 baud
Set 9600 baud
B3
Set 9600 baud
Set 19200 baud
ATC
Serial Baud Rate selection / Automatic Baud Detection control ( These
commands refer to the RS-232 serial port. ATR commands refer to RS-485 port).
C0
Set automatic baud rate detection
C1
Set 600 baud
C2
Set 1200 baud
C3
Set 2400 baud
C4
Set 4800 baud
C5
Set 9600 baud
C6
Set 14,400 baud
C7
Set 19,200 baud
C8
Set 28,800 baud
C9
Set 31,250 baud (Foundation Fi Profibus FMS)
C10
Set 38,400 baud
C11
Set 57,600 baud
C12
Set 76,800 baud
C13
Set 93,750 baud (For Profibus)
C15
Set 115,200 baud