S Registry
INSYS Modem 56k small EU 2.1
68
S21*
Settings for V24
Bit
Meaning
Bit 0,1
Reserved
Bit 2
CTS behaviour
CT106 (CTS) behaviour:
0: like
AT&R0
1: like
AT&R1
Bit 3-4
DTR behaviour
CT108 (DTR) behaviour:
0: like
AT&D0
1: like
AT&D1
2: like
AT&D2
3: like
AT&D3
Bit 5
DCD behaviour
CT109 (DCD) behaviour
0: like
AT&C0
1: like
AT&C1
Bit 6
DSR behaviour
CT107 (DSR) behaviour
0: like
AT&S0
1: like
AT&S1
Bit 7
Reserved
Reserved
S22*
Speaker system settings
Bit
Meaning
Bit 0,1
Speaker volume
Speaker volume:
0: Off
(
ATL0
)
1: Silent
(
ATL1
)
2: Medium
(
ATL2
)
3: Loud
(
ATL3
)
Bit 2-3
Speaker control
Speaker control:
0: Off
(
ATM0
)
1: On until carrier (
ATM1
)
2: Always on
(
ATM2
)
3: On at establishing
Bit 4-6
Error message group
Limit result codes:
0: like
ATX0
4: like
ATX1
5: like
ATX2
6: like
ATX3
7: like
ATX4
Bit 7
Reserved
Reserved
S24
Time period until switching into sleep mode
The time after which the modem switches to energy conservation mode (sleep)
during inactivity is determined (in seconds) in S24. The energy conservation mode
will be quit as soon as characters are sent to the modem, or when a call comes in.
Note:
When the modem is in sleep mode, it is necessary to send an
"AT" command before sending other commands. This first "AT"
command may not be answered with "OK". Further AT com-
mands may be entered immediately.
