Download Cabletron Systems CSMIM2-16 Installation guide

Chapter 7: AT Commands and Registers
S21=n
Bit Mapped Register (Table 7-10)
Table 7-10
Bit
Position
Function
3,4
DTR
Saved Command Settings with S21
Decimal Value
0 Ignores DTR (&D0)
1 On-to-Off DTR transition: modem enters command 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)
S22=n
Bit Mapped Register (Table 7-11)
Table 7-11
Bit
Position
4,5,6
7
7-48
Saved Command Settings with S22
Function
Decimal Value
result code
0
same as X0
options
4
same as X1
5
same as X2
6
same as X3
7
same as X4
make/break
0
39/61
ratio
1
33/67
CSMIM-T1 Hardware Installation Guide