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U-90E Data/Fax Modem
Command
bit
dec
17
18
20
21
22
24
25
26
27
28
29
46
Note: Only the speeds up to S20=15 are supported by auto speed detection.
S21=
bit
dec
0
0
1
1-2
0
2
4
6
3
0
8
4
0
6-6
hex
Function and description
11
153600 bps
12
102400 bps
14
61440 bps
15
51200 bps
16
624000 bps
18
124800 bps
19
62400 bps
1A
41600 bps
1B
31200 bps
1C
24960 bps
1D
20800 bps
2E
921600 bps
Hex
Bit mapped register
0*
Maintain non-error control connection
when modem error control
handshake fails
1
Drop connection when modem error
control handshake fails (default)
0
Speaker is always OFF
2*
Speaker is ON until carrier is
detected (default)
4
Speaker is always ON
6
Speaker is ON after last digit is dialed
out until carrier detected
0*
DSR is always ON (default)
8
According to CCITT (see also S44.4,
S41.5)
0
CD is always ON
Ref.
+178
*E0
*E1
M0
M1*
M2
M3
&S0
&S1
&C0
Status Registers
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