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8–12
S25 DTR detection delay;
Default: 0: Specifies in units of 10ms the minimum time that the DTR signal must
be OFF in order to be detected. If S25=0, the delay time is 4ms.
S26 RTS/CTS delay;
Default: 0: Sets the delay, in 10 millisecond units, between RTS and modem's
CTS response in synchronous mode. (See &Rn)
S27 Bit-mapped register; default: 156:
L7 111 224 High.
N0 (3,2,1) 000 0 Ring volume control: OFF
N1 001 2 Low.
N2 010 4
N3 011 6
N4 100 8 Medium.
N5 101 10 (Default)
N6 110 12
N7 111 14 High.
Code Bits Bin. Dec. Description
*Q0 (7,6) 00 0 No reaction to poor signal quality.
*Q1 01 64 Initiates retrain if signal quality is poor. (See
also S41b2)
*Q2 10 128 Adaptive rate (auto fall-back and fall-forward
when signal quality changes; default)
*Q3 11 192 Disconnects when signal quality is poor.
&H0 (5,4,3) 000 0 Flow control is disabled.
&H1 001 8 Reserved.
&H2 010 16 Reserved.
&H3 011 24 Hardware CTS/RTS flow control. (Default)
&H4 100 32 Software XON/XOFF flow control.
&H5 101 40 Reserved.
&K0 (2,1,0) 000 0 No error correction.
&K1 001 1 MNP4 (Includes MNP3, see also S41b0).
&K2 010 2 MNP4 + MNP5. (See also S41b0, S38b5)
Code Bits Bin. Dec. Description