MC55_ATC_V04.00 Page 88 of 475 3/17/06
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4.4 AT&S Set circuit Data Set Ready (DSR) function mode
The AT&S command determines how the TA sets circuit 107 (DSR) depending on the communication state of
the TA interfacing TE.
Syntax
Parameter Description
[0]
(&F)
DSR line is always ON
1 TA in command mode: DSR is OFF.
TA in data mode: DSR is ON.
Exec Command
AT&S[<value>]
Response(s)
OK
Reference(s) PIN ASC0 ASC1 MUX1 MUX2 MUX3 Charge  Last
V.250 ! % ! % % % ! ! !
<value>
(num)(&W)(&V)
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