Vingtor 3005020018, Техническое руководство

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ETB Command Talk-Back & Public Address System
Installation & Operation Manual
A100K11162 v1
1.5.12 External Loudspeaker (Option)
The optional external loudspeaker with 40W impedance is for improved
and higher audio volume level.
The loudspeaker is connected in parallel with the monitor speaker and
located close to the ETB central unit.
1.5.13 Line Button Dimmer
The intensity of the line button light can be adjusted by pressing the
button labeled DIM .
1.5.14 Volume Adjustment
By pressing the + or - buttons repeatedly, you can progressively increase
or decrease the speaker volume in the central unit
This will also affect the volume for an external speaker connected to the
panel.
● Press the + button to increase the volume
● Press the - button to decrease the volume
1.5.15 Power Supply SPS-4 (Option)
The power supply SPS-4 is designed with power failure contact and
automatic switch-over relay.
This means that there is an indication and automatic switch-over to 24V
DC emergency power supply when the mains supply or power module
fails.
1.5.16 Audio from External Systems (ETB-10A only)
Entertainment, message or alarm messages can be distributed
through the ETB-10A system.
An potential-free contact and 0 dB signal from the external system
activate the ETB-10A to send the message to all substations.
The TALK button on ETB-10A or the PTT switch on the handheld
microphone will override the external audio.
Normal talk-back functions can not be used in this mode.
The external system may be:
- VHF radio
-Entertainment system
-Alarm system
-Public Address
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