Error control – ZyXEL Communications 2864 User Manual

Page 77

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6–11

ERROR CONTROL

CONTROL LEVEL

FLOW CONTROL

NEGOTIA(TION) FALLBACK

BREAK HANDLING

Level

Error Control

Compression

NONE

AT&K0

disabled

disabled

MNP4
(MNP3)

AT&K1

MNP4

disabled

MNP4 +
MNP5

AT&K2

MNP4

MNP5

V.42 (MNP4)

AT&K3

V.42 or MNP4

disabled

+ V.42(b) +

MNP4(5)

AT&K4

V.42 or MNP4

V.42bis based on V.42 or
MNP5 based on MNP4
(Default)

Note:

S38.5=1

disables MNP5 with no interference to other settings.

DISABLED

AT&H0

DTE flow control is disabled.

+ CTS / RTS

AT&H3

Hardware flow control CTS/RTS is enabled. (De-
fault)

LOCAL XON/
XOFF

AT&H4

Local software flow control XON/XOFF is ena-
bled.

PASS
XON/XOFF

AT&H5

reserved.

+ STAYS

ON-LINE

AT*E0

A non-error control connection is maintained if
error control negotiation fails. (Default)

DISCONNECT

AT*E1

Disconnects if no error control is established.

DESTRUCTIVE

AT&Y0

Destructive, expedited. Sends break, throws
away data in buffer.

+ EXPEDITED

AT&Y1

Non-destructive, expedited. Sends break first
ahead of data in buffer. (Default)

IN SEQUENCE

AT&Y2

Non-destructive, non-expedited. Sends break in
sequence with data.

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