2011.02.01 Updating of IP rating Zenitel Marine assumes no responsibility for any errors that may appear in this publication, or Zenitel Norway AS and its subsidiaries assume no responsibilities for any errors that may appear in this publication, or for damages arising from the information in it. No information in this publication should be regarded as a warranty made by Zenitel Norway AS.
Installation & Service manual VSS system 2. General Description The VSS system enable the navigator on a one 4 x VSS-222 man operated bridge to listen to the environmental sound signals from other ships or fog horns that are audible outside the ship when standing inside the enclosed bridge space.
Installation & Service manual VSS system 3. Installation 3. 1 Main Unit VSS-111 For physical dimensions, recommended panel cut-out, size of mounting holes etc. please see mechanical drawing VSS-111_dd. According to rules the system loudspeaker(s) should be installed so that incoming signals are audible at all positions inside the bridge.
Installation & Service manual VSS system 4. Setting & Adjustment 4.1 General The settings are factory adjusted and set to a level close to the real operation conditions as possible. But in order to optimise the performance of the system, may be the installation must be adjusted on site.
Installation & Service manual VSS system Remove cover for access to the potentiometer marked squelch. Use a screwdriver. In case of higher noise threshold level than factory adjusted. Turn potentiometer clockwise until the undesirable sound source not activates the system. Increase the signal from the sound source with approx.3 dB.(To simulate the real sound source) and check if the system activates.
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vSS-111 MAIN STATION FEATurES ▪ Sound Reception system main unit ▪ Built-in system amplifier ▪ Inputs for four (4) VSS-222 microphones ▪ Built-in loudspeaker with manual volume control ▪ LED dimmer control ▪ Remote muting of the amplifier circuitry when the vessel’s own typhone is activated ▪...