Cabletron Systems CSMIM-T1 User Manual
Page 174
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Chapter 7: AT Commands and Registers
7-48
CSMIM-T1 Hardware Installation Guide
S21=
n
Bit Mapped Register (Table 7-10)
Table 7-10
Saved Command Settings with S21
S22=
n
Bit Mapped Register (Table 7-11)
Table 7-11
Saved Command Settings with S22
Bit
Position
Function
Decimal Value
3,4
DTR
0
Ignores DTR (&D0)
1
On-to-Off DTR transition:
modem
enters com-
mand state (&D1)
2
On-to-Off DTR transition:
modem goes on
hook (&D2)
3
On-to-Off DTR transition:
modem resets
(&D3)
5
DCD
0
DCD always On
1
DCD On indicates data carrier is present or
DCD On except momentarily at disconnect
6
not used
7
long space
0
off (Y0)
disconnect
1
on (Y1)
Bit
Position
Function
Decimal Value
4,5,6
result code
0
same as X0
options
4
same as X1
5
same as X2
6
same as X3
7
same as X4
7
make/break
0
39/61
ratio
1
33/67
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