NLLW 50
– ‚User guide
8
1.3.2 Setting voice communication
Position trimmers are presetting from manufacture and in majority case
agree with, therefore changes setting altering only in necessary case.
Trimmer "MIC" be instrumental to setting loudness of microphone,
trimmer "SPK" be instrumental to setting loudness loudspeaker. In this version
is big reserve in gain, therefore isn't recommended adjust more than on half,
typical is in 1/3 from minimum gain. Trimmer "TRH" be instrumental to setting
levels activation of microphone, it means, so as doorphone "non whoop" owing
to acoustic loop so selection, which direction has priority, whether from
microphone, or into loudspeaker. Level from which volume with "switch on"
direction from microphone doorphone setting trimmer „TRH". This setting
interact level surrounding no
ise and setting gain of microphone „MIC".
Progress of setting: trimmer MIC and SPK setting in 1/4 from minimum
loudness (minimum is sense turning left), trimmer TRH setting in central
position. At conversation
connection stilly talk and trimmer
TRH turning from central value
direction to the left so, till you will
on the side phone (in building)
hear. Gain of loudspeaker, in
some case of microphone set-up
according to needs.
Picture 2:
Typical range and sense of rotation trimmers
1.3.3 DTMF level setting
Level of DTMF dial it is possible adjust in three
levels, base level is -10dBm, here it is possible restrict
to -14dBm and or heighten on -6dBm. Setting is makes
by DIP switch according to pictures.
