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AT Commands and S-Registers
4-153821-A2-GB20-30 February 1998
Table 4-1
(13 of 13)
3821
Plus
AT Commands
\Qn – Flow Control of DTE, Flow Control of Modem
The \Q
n
command controls two configuration options simultaneously:
Flow Control Flow Control
of DTE of Modem
\Q0 Disable Disable
\Q1 XON/XOFF XON/XOFF
\Q2 CTS to DTE Disable
\Q3 CTS to DTE RTS to Modem
\Q4 XON/XOFF Disable
\Q5 Disable XON/XOFF
\Q6 Disable RTS to Modem
FLOW CONTROL OF DTE
Determines how the modem controls the flow of data from the DTE.
FLOW CONTROL OF MODEM
Determines how the DTE controls the flow of data from the modem.
\T
n
– No Data Disconnect Timer
Forces the modem to disconnect if no data is transmitted or received within a specified amount of time.
\T, \T0 Disable. \T2 is the default for Denmark, and \T3 is the default for France and Germany. See Appendix H.
\T
n
Where
n
is a value from 1 to 255 in 1-minute increments.
\X
n
– XON/XOFF Passthrough
The way this configuration option functions depends on how the modem is configured for flow control.
When the modem is configured for XON/XOFF flow control (see \Q
n
, Flow Control of DTE), this configuration option
determines if flow control characters received from the local DTE will be passed on to the remote modem.
If configured for modem-to-modem flow control (see \G – Modem to Modem Flow Control), this configuration option
determines if flow control characters received from the line will be passed on to the DTE.
\X, \ X0 Disable.
\ X1 Enable.