V.42bis commands – IBM 2193 User Manual
Page 191
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Modem information
B-11
V.42bis commands
Table 4: V.42bis commands
Command
Function
+IFC = 0,0
Disable flow control
+IFC = 2,2
Enable RTS/CTS hardware flow control (data mode default)
+IFC = 1,1
Enable XON/OFF software flow control
+DS = 0,0,2048,32
Data compression disable
+DS =3,0,2048,32
V.42bis/MNP5 data compression enabled
+ES = 0,0,1
Normal mode (speed buffering) only
+ES = 4,4,6
MNP mode only
+ES =3,3,5
V.42/MNP/Normal auto-mode
+ES = 3,0,2
V.42 mode only
+ILRR = 0
Disable protocol result code appended to DCE speed
+ILRR = 1
Enable protocol result code appended to DCE speed
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