Nn - operating mode, At+ commands, Ms - select modulation – Perle Systems 833IS User Manual

Page 271

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Appendix 2: AT Command Set

Perle 833IS User Guide

255

\Nn - Operating

Mode

This command controls the preferred error correcting mode to be negotiated in a
subsequent data connection.

\N0

Selects normal speed buffered mode (disables error-correction mode).

\N1

Same as \N0.

\N2

Selects reliable (error-correction) mode. The modem will first attempt a
LAPM connection and then an MNP connection. Failure to make a
reliable connection results in the modem hanging up.

\N3

Selects auto reliable mode. This operates the same as \N2 except failure
to make a reliable connection results in the modem falling back to the
speed buffered normal mode.

\N4

Selects LAPM error-correction mode. Failure to make an LAPM error-
correction connection results in the modem hanging up. Note: The -K1
command can override the \N4 command.

\N5

Selects MNP error-correction mode. Failure to make an MNP error-
correction connection results in the modem hanging up.

Result Codes:
OK

n = 0 to 5.

ERROR

Otherwise.

AT+ Commands

+MS - Select

Modulation

This extended-format command selects the modulation, optionally enables or
disables automode, and optionally specifies the lowest and highest connection rates
using one to three subparameters.

+MS= <od> [,[<automode>][,[<min_rate>][,[<max_rate>][,[ ]]]]]<CR>

Notes:

Subparameters not entered (enter a comma only or <CR> to skip the last
subparameter) remain at their current values.

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