<C#>-20 V.3229 / V.3229L
5
synchronous Operating Commands
*default
AT&C3 must be enabled on both modems and syn-
chronous or direct mode must be in effect for simu-
lated switched carrier operation.
Data Set Ready
&S
These commands control the DSR signal generated
by the modem to indicate that the modem is ready for
operation. DSR must be on for some terminals and
devices to communicate with the modem.
select &C. DIMENSION(IN)
COL-
WIDTHS(1.
0000,2.710
8)
WIDTH(5.4992)
BE-
LOW(.0005)
HGUTTER(.0555)
VGUT-
TER(.0555)
BOX(Z_DOUBLE)
HGRID(Z_S
INGLE)
VGRID(Z_SINGLE)
KEEP(OFF) ALIGN(RT)
L2(R1C0..R
1C2)
TABLE HEADING
Command Operation
&C DCD always on*
&C1 DCD is on when the modem recogniz-
es remote modem carrier or, if en-
abled, when protocol negotiation is
complete
&C2 DCD on except for 5 seconds after
disconnect
&C3 DCD follows RTS on remote modem.
(Simulated switched carrier
Table 7:
Term
na
Inter
ace
omman
s,
ont.
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