AL3A-RM User Guide Version B
Document Number: 451-93156-002B
40 of 172
A
PPENDIX
B: AT
C
OMMAND
S
ET
D
ESCRIPTION
(I
RIDIUM
R
ADIO
L
INK
P
ROTOCOL
)
B.1 AT
–
A
TTENTION
C
ODE
This is the prefix for all commands except A/ and +++. When entered on its own, the
A3LA-RM will respond OK.
B.2
A/
–
R
EPEAT
L
AST
C
OMMAND
Repeat the last command issued to the A3LA-RM unless the power was interrupted
or the unit is reset. A/ is not followed by <CR>.
B.3 +++
–
E
SCAPE
S
EQUENCE
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-RM
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.
B.4
E
N
–
E
CHO
Echo command characters.
0
Characters are not echoed to the DTE
1
Characters are echoed to the DTE (default)
B.5 O
N
–
O
NLINE
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
B.6 Q
N
–
Q
UIET
M
ODE
Control A3LA-RM responses.
0
A3LA-RM responses are sent to the DTE (default)
