Vingtor 3005020018, Техническое руководство

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ETB Command Talk-Back & Public Address System
Installation & Operation Manual
A100K11162 v1
2.6 Power Supply Requirements
● 24 VDC -10% + 33% (21.6 – 32 VDC)
● Current consumption max. 2A
System power supply should be wired and fused independently from
other systems:
● 24V DC from ship’s 24V DC system.
● 24V DC from power supply SPS-4 230V AC / 24V DC with automatic
switch to 24V DC emergency power supply.
2.7 Volume Adjustment for Substation Lines
System volume for substations can be adjusted by separate trimmer for
each group of 5 lines: master volume lines 1-5 and lines 6-10.
Volume is factory set and does not normally require any adjustment.
If the installation on some locations requires another sound pressure
level, this can be changed to the desired audibility and volume.
2.8 Extra Signal Device
The maximum load for each substation line is 50 mA to substation with
relay unit or signal device (connected on terminal block K1 – K10 no.
3-4). The maximum load from substations STB-3 and STB-5 is 2A.
2.9 Foot Switch for ETB Central Unit
The foot switch is used together with the ETB central unit and gooseneck
microphone.
When the foot switch is used, the jumper labeled JUMPER FOR FOOT
SWITCH on the main board has to be removed.
2.10 Microphone Setup
The jumper J8 has to be set to Microphone.
This is the default setting and does not normally need to be changed.
2.11 Microphone Input Adjustment
Input for microphones can be adjusted via the potentiometer labeled P1.
The input level is factory set and does not normally require any
adjustment.