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Command entries with invalid syntax typically respond with ERROR. Command entries of valid syntax
with an out-of-range parameter can respond in one of three following manners:
Disallow out-of-range entry and respond with ERROR
Disallow out-of-range entry and respond with OK
Disallow out-of-range entry, accept the closest in-range value, and respond with OK
A.7 Hardware Failure Reporting
If the A3LA-RG detects a hardware problem during initialization, it may be unable to function correctly.
The A3LA-RG notifies the DTE of this situation by issuing an unsolicited result code at the end of
initialization:
HARDWARE FAILURE: <subsys>,<error>
where <subsys> identifies the software subsystem that detected the error, and <error> is the subsystem
specific error code. Any AT commands that cannot be handled in the failure condition will terminate with
result code 4 (“ERROR”).
A.8 Command Set Description
A.8.1 AT – Attention Code
This is the prefix for all commands except A/ and +++. When entered on its own, the A3LA-RG
will respond OK.
A.8.2 A/ – Repeat Last Command
Repeat the last command issued to the A3LA-RG unless the power was interrupted or the unit is
reset. A/ is not followed by <CR>.
A.8.3 +++ – Escape Sequence
The escape sequence is used to transfer from in-call data mode to in-call command mode
without disconnecting from the remote modem. After a pause, the A3LA-RG will respond with
OK. Register S2 can be used to alter the escape character from +, the factory default, to any
hexadecimal value in the range 0 to 255.
A.8.4 En – Echo
Echo command characters.
0
Characters are not echoed to the DTE
1
Characters are echoed to the DTE (default)
A.8.5 On – Online
Enter in-call data mode. This is used to return to in-call data mode from in-call command mode
using an existing connection. An error is reported if on-hook.
0
Switch from in-call command mode to in-call data mode
Any value for n accepted
A.8.6 Qn – Quiet Mode
Control A3LA-RG responses.
0
A3LA-RG responses are sent to the DTE (default)
Содержание A3LA-RG
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