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S21
Bit-Mapped Options.
Default: 52 [4+16+32]
In Profile: Yes
Writeable: No
Bit
0
1
2
3, 4
5
6
7
Value
Meaning
0
Not used.
0
Reserved.
0
Clear to send (CTS) always on
(&R0).
4
CTS follows request to send
(RTS) (&R1).
0
Data terminal ready (DTR)
behaves according to &D0.
8
DTR behaves according to &D1.
16
DTR behaves according to &D2.
24
DTR behaves according to &D3.
0
Carrier detect (CD) always on
(&C0).
32
CD follows state of carrier (&C1).
0
Data set ready (DSR) always on
(&S0).
64
DSR active after answer tone has
been detected (&S1).
0
Disable long space disconnect
(Y0).
128
Enable long space disconnect (Y1).
63
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