Cabletron Systems CSMIM-T1 manual S21=n Bit Mapped Register Table, S22=n Bit Mapped Register Table

Chapter 7: AT Commands and Registers

S21=n Bit Mapped Register (Table 7-10)

Table 7-10 Saved Command Settings with S21

Bit	Function	Decimal Value
Position
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)

S22=n Bit Mapped Register (Table 7-11)

Table 7-11 Saved Command Settings with S22

Bit	Function	Decimal Value
Position
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

7-48 CSMIM-T1 Hardware Installation Guide