U-90E
Data/Fax
Modem
Status Registers
6-9
Command
bit
dec
hex
Function and description
Ref.
4
4*
V.42 + V.42bis (compatible with &K2)
(default)
&K4
3-5
0 0 Flow
control
disabled
&H0
24
18*
Hardware (RTS/CTS) flow control
(default)
&H3
32
20
Software (XON/XOFF) flow control
&H4
40 28 Reserved
&H5
6-7
Signal
quality
0
0
No response to poor signal quality
*Q0
64
40
Retrain action taken if signal quality
is poor
*Q1
128
80*
Adaptive rate (auto fall-back /forward)
when signal quality
changes.(Defaults)
*Q2
S41.2
192
C0
Disconnect when signal quality is
poor
*Q3
S28=
bit
dec
Hex
Bit mapped register
+068
0
0
0*
Single line RJ-11 phone jack (default) &J0
1 1 Multiple
phone/modem
line,
RJ12/RJ13 phone jack
&J1
1
0
0*
Panel key is normal (default)
*L0
2
2
Panel key is locked
*L1
2-3
0 0 Destructive,
expedited
break
&Y0
4
4*
Non-destructive, expedited break
(default)
&Y1
8 8 Non-destructive,
un-expedited
break
&Y2
4-5 0
0*
No guard tone (default)
&G0
16 10 Reserved
&G1
32
20
1800 Hz guard tone
&G2
6
0
0
DTE/DCE rate follows link rate (See &B0
