At Commands - Furuno FELCOM 70 Operator's Manual

6. DATA COMMUNICATION
6.3.7

AT commands

General
The AT command set allows you to configure the Mobile Data Service function
directly from your PC keyboard.
The AT characters are a prefix to the commands you issue to the Mobile Data
Service.
Most communication applications do not require knowledge of AT commands.
Every time you type AT, you are essentially asking for the Mobile Data Service's
ATtention. For instance, if you want to answer an incoming data call, you would
type ATA to answer: ATA
When a value associated with a command is not entered, it is assumed to be 0,
f.ex.:
A T
Hanging up – escape sequence
Once the Mobile Data Service is online to another system, the only command it
recognises is an escape code that contains three typed pluses, (+) which forces
the Mobile Data Service back to command mode.
The following should be done, when issuing the escape command:
• Wait one second after sending the last item of data.
• Type
• Wait one second, an "OK" response should appear.
Do not type the AT prefix or Carriage Return. The guard time of one second
before and after the code prevents the Mobile Data Service from misinterpreting
the occurrence of +++ in the transmitted data stream.
If necessary, the character used in the escape code or the duration of the guard
time can be changed by altering Register S2 or S12, see S-register
commands.
• In response to
• To hang up, key
• To return to online mode, key
6-58
R
equals
& D A T
with less than one second between the characters.
+ + +
, the Mobile Data Service returns to command mode.
+ + +
A T H
R
.
& D 0
A T O
R