NUDV – Installation and Operating Instructions
The "G" Faston 2.8mm terminal protects against static electricity – to be
connected to earthing.
The "HEAT" jumper serves the switching of board heating. This function
requires the connection of 12V supply on "12V" marked terminal.
The "EXPANSION" marked connector serves the connection of extending
modules by means of flat cable.
The "PRG" marked connector provides the guard adjustment from PC by
means of serial cable (KAB) and serves to the service for diagnostics and new
software load.
The "SERVICE" jumper serves to direct access to programming. It can be
used, for example by absence of password for programming.
Setting voice communication – position trimmers are presetting from
manufacture and in majority case agree with, therefore changes setting altering
only in necessary case.
For older version of board V1.x (fig.1) :
The "VOLUME" trimmer serves to the adjustment of loudspeaker
volume, it has no effect to other guard features. The "MIC" trimmer (placed
under PDV board) provides the adjustment of microphone volume. Such
adjustment can improve the feature of speech way, e.g. by ambient noise in the
street. At setting of a great gain of trimmer „MIC" is able to happen, that sound
from speaker doorphone is interrupting, next is necessity gain of trimmer „MIC"
make smaller.
Procedure of setting: trimmer SPK setting to maximum (turn to the right),
trimmer MIC on minimum and at conversation connection subscriber speaking
(in building) permanent talk, trimmer MIC turning (to the right), until sound from
speaker begins interrupt, next gain teeny reducing (moving round a slight
amount left). It shall everything be all right.
For newer version board V6.x (fig.2) :
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 noise 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.
