NEC 750C User Manual
Page 71
Modem Commands A-5
S-Registers
Register
Function
Range
Units
Default
S0
Rings to Auto answer
0-255
0
S1
Ring Counter
0-255
S2
Escape Character
0-255
ASCII
43
S3
Carriage Return Character
0-255
ASCII
13
S4
Line Feed Character
0-255
ASCII
10
S5
Backspace Character
0-255
ASCII
8
S6
Wait Time for Dial Tone
2-255
s
2
S7
Wait Time for Carrier
1-255
s
50
S8
Pause Time for Dial Delay
Modifier
0-255
s
2
S9
Carrier Detect Response
Time
1-255
0.1s
6
S10
Carrier Loss Disconnect Time
1-255
0.1s
14
S11
DTMF Tone Duration
20-255
ms
95
S12
Escape Prompt Delay
0-255
0.02s
50
S24
Sleep Inactivity Timer
0-255
s
0
S25
Delay to DTR Off
0-255
0.01s
5
S26
RTS-CTS Delay
0-255
0.01s
1
S29
Flash Dial Modifier
0-255
0.01s
70
S30
Disconnect Inactive Timer
0-255
10s
0
S32
XON Character
0-255
ASCII
17
S33
XOFF Character
0-255
ASCII
19
S36
LAPM Failure Control
7
S37
Line Connection Speed
0
S38
Delay Before Force Hang-up
0-255
s
20
S46
Data Compression Control
S48
V.42 Negotiation Control