Ln – speaker volume, L – return received line signal quality, Ln – mnp block stream mode select – Westermo TD-22 User Manual

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Ln – Speaker Volume

The modem sets the speaker volume control according to the parameter supplied. The parameter
value, if valid, is written to S22 bits 0 and 1.

L0

Speaker off.

L1

Low volume. (Default.)

L2

Medium volume.

L3

High volume.

Please also refer to ATM

%L – Return received line signal quality

Returns a value which indicates the received signal level. The value returned is a direct indication
(DAA dependent) of the receive level at the MDP, not at the telephone line connector. For example
007= -7dBm, 033 = -33dBm. For leased line the value should be better than -40dBm. The noise
should be at least 6dBm lower than the signal itself in order for the communication to work properly.

Please also refer to AT%Q

\Ln – MNP Block Stream Mode Select

At connection time this command controls the selection between block and stream modes of
operation in MNP. The parameter value, if valid, is written to S41 bit 4.

\L0

Use stream mode for MNP connection. (Default).

\L1

Use interactive block mode for MNP connection. This command will accept block
mode but implement stream mode.

Please also refer to AT\N

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