Epson ESC/VP21 User Manual page 27

n = 1
n = 3
n = 5
In Command State, if reliable mode then transmit break to remote:
n =
0,1
n = 2,3
n = 4,5
In Connect State, if direct mode then receive break at serial port:
n = 0,2,4
n = 1,3,5
In Connect State, receive break at modem port, send to serial port:
n =
0,1
n = 2,3
n = 4,5
Default: 5
\Nn Set Operating Mode
Determines the type of connection attempted by the modem.
\N0
\N1
\N2
2 - COMMAND REFERENCE
Destructive/expedited,
Non-destructive/expedited.
Non-destructivelnonexpedited.
Destructive/expedited.
Non-destructive/expedited.
Non-destructive/non-expedited.
Immediately send break and enter command state.
Immediately send break through.
Destructive/expedited.
Non-destructive/expedited.
Non-destructive/non-expedited.
Normal Mode - No data compression or error
correction, but uses speed buffering.
Direct Mode - No data compression, error
correction, or speed buffering.
MNP Reliable Mode - The modem attempts
to negotiate an MNP error-correction 'reliable'
link, hanging up if it fails.
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