Clarson PUBLIC IV - Page 6

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The volume can only be changed if either or or is switched on.
PTT Mode:
Push and hold key to switch the microphone on.
Aenon: transmission only takes place when the LED is acvated.
Switching on PTT Mode:
Switch the intercom system o
Push and hold key (approx. 5 sec.) unl LED above ashes.
Switching o PTT Mode:
Switch the intercom system o
Push and hold key (approx. 5 sec) unl LED above ashes.
Intercom Console
The corresponding LEDs indicate the operang state of the intercom system. Should external distur-
bances such as prolonged voltage drops change the operang status, the original state can be restored
via control panel.
Key Funcons, External Connecons and LED Signalling
Key Funcon LED State System Operang Status
Intercom System ON/OFF on ready for use
o switched o
ashes set-up mode
Loudspeaker ON/OFF on loudspeaker ON
o loudspeaker OFF
Microphone ON/OFF on microphone ON
o microphone OFF
Audio IN ON/OFF on Audio IN ON
o Audio IN OFF
Increase volume led brightens
ashes maximum volume
Reduce volume led darkens
ashes minimum volume
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Connecon for audio recorder
(5)
Connecon for audio player
(5)
Connecon for headset
(5) (6)
Aer switching on the intercom system the intercom console is acvated, regardless of whether the
headset microphone is plugged in or not.
Switchover to headset operaon is made by removing and re-inserng the headset microphone plug.
Operaonal Start-up/Service
(7)
External Connecons Intercom Console
External Connecons Central Unit
(5)
Not included in scope of supply
(6)
Contact Clarson directly for suitable headsets
(7)
Unplug or plug in patch cable only in power-free state
To avoid poor sound quality and feedback, it may be necessary to adjust the volume range sengs to
accomodate the acousc condions on site.
Maximum volume for both the Control Room and the Paent´s Room is set as follows:
Firstly, PTT turned on (state of delivery), ensure all doors between Control Room and Paent´s Room
are open.
 Press the buon to switch the intercom system o, all LEDs will turn o.
 Press the key sequence , the LED above the buon ashes.
 Press the buon, the LED above the buon lights up.
 Use the and buons to set the maximum volume for an opmal sound quality at the
Control Room .
 Press the buon, the LED above the buon turns o.
 Press and hold the buon, the LED above the buon lights up.
 Use the and buons to set the maximum volume for opmal sound quality at the
Paent´s Room .
 Release the buon, the LED above the buon turns o.
 Press the and buons to the same me unl LEDs above the buons ash briey once
to save the new values.
 Press the and buons to the same me unl LEDs above the buons
lights up | ashes | lights up, to reset to factory sengs.
 Press the buon to exit the sengs, all LEDs will turn o.
Trouble shoong:
In case of interference, intercom components should be relocated to increase the distance from
sources of strong electromagnec radiaon.