Table of Contents
Advertisement
B-8
A
B: A
PPENDIX
LPHABETIC
C
S
OMMAND
UMMARY
Command
Function
&K1
&K2
&K3
&Ln
Line type.
&L0
&L1
&Mn
Enable ARQ (error control) or synchronous protocols. Both your
modem and the remote device must use the same protocol.
&M0
&M1
&M4
&M5
&M6
&M7
&Nn
Sets fixed link speed.
&Nn&UN
Sets highest and lowest link speeds
n=1
Use auto-enable/disable. The modem enables
compression if the serial port rate is fixed (&B1)
and disables compression if the serial port rate
follows the connection rate (&B0) because
compression offers no throughput advantage
when the serial port and connection rates are
equal; in fact, compression may degrade
throughput.
Always enable data compression.
Selective data compression. The modem
negotiates only for V.42 bis compression, and
disables MNP Level 5 (MNP5) compression. Use
this setting to transfer compressed files.
Normal.
Dedicated or leased
line.
Normal mode, no error control. Due to the nature
of phone line channels, this is never
recommended for calls above 2400 bps.
Use for online synchronous mode without V.25
bis. This setting is exclusive of the modems' error
control.
Normal/ARQ mode. If an ARQ connection isn't
made, the modem operates in Normal mode as
though it were set to &M0.
ARQ asynchronous mode. The modem hangs up if
an ARQ connection cannot be made.
V.25 bis synchronous mode using a
character-oriented link protocol similar to BISYNC.
V.25 bis synchronous mode using the HDLC link
protocol.
Variable rate. The modem negotiates with the
remote device for the highest possible connection
rate, depending on the capabilities of the remote
device.
Advertisement
Table of Contents
