A3LA-R User Guide Version A
Document Number: 451-93156-001A
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DTR must be ON at call connection
DTR must be ON during both in-call command mode and in-call data mode. Reaction
to DTR ON to OFF transitions during in-call command mode and in-call data mode is
determined by the &Dn setting as shown below.
Note that the +CVHU command can
be set to override these specified reactions.
1
If DTR transitions from ON to OFF during in-call command mode, and DTR
is restored ON within approximately 10 seconds, the call will remain up. If
DTR is not restored ON within approximately 10 seconds, the call will drop
to on-hook command mode.
If DTR transitions from ON to OFF during in-call data mode, the mode will
change to in-call command mode. If DTR is restored ON within
approximately 10 seconds, the call will remain up. If DTR is not restored
ON within approximately 10 seconds, the call will drop to on-hook
command mode.
2
If DTR transitions from ON to OFF during either in-call command mode or
in-call data mode, the call will drop to on-hook command mode (default).
3
If DTR transitions from ON to OFF during either in-call command mode or
in-call data mode, the call will drop to on-hook command mode and the
A3LA-R will reset to AT command profile 0.
B.12 &F
N
–
R
ESTORE
F
ACTORY
S
ETTINGS
Recall factory defaults.
0
Recall factory default 0
B.13 &K
N
–
F
LOW
C
ONTROL
Select the flow control method between the A3LA-R and DTE.
0
Disables flow control
3
Enables RTS/CTS flow control (default)
4
Enables XON/XOFF flow control
6
Enables both RTS/CTS and XON/XOFF flow control