Total Control MP/16, Руководство оператора, Страница: 136 / 182

D-12 AT Command Reference
&K2 Data compression enabled. Use this setting to keep the
modem from disabling compression.
&K3 Selective data compression. The modem negotiates only for
V.42 bis compression, and disables MNP Level 5 (MNP5)
compression. Use this setting to transfer 8-bit binary files,
.ZIP files, and other files that are already compressed.
&Ln
Normal/Leased phone line.
&L0 Normal phone line. Default
&L1 Leased line; enables modem to reconnect if disconnected.
&M n
Enable ARQ (error control) protocols. Both the host modem and
the remote modem must use the same protocol.
&M0 Normal mode, no error control. Due to the nature of phone
line channels, this is never recom mended for calls above 2400
bps.
&M1 Reserved.
&M2 Reserved.
&M3 Reserved.
&M4 Norm al/ARQ mode. If an ARQ connection isn't made, the
modem operates in Normal mode, as though it were set to
&M0. Default
&M5 The modem enters ARQ asynchronous mode. The modem
hangs up if an ARQ connection cannot be made.
&M6 Reserved.
&M7 Reserved.
&N n
Connection rate variable or fixed.
&N0 Variable rates. The host modem negotiates with the remote
modem for the highest possible connection rate, depend ing
on the capabilities of the remote modem. This is the
recommended setting. Default
&N1-&N14 Fixed rate. The modem only connects if the remote
modem is operating at the same rate. If not, the modem
hangs up. If you wish, you can filter out calls at other than a
specific rate, for security or other reasons, by fixing the
connection rate. The connection rate must always be lower
than, or equal to, the serial port rate, never higher.