Figure 6.5: VOX volume control
VOX
If the VOX switch is in the OFF position, the input is activated when the voltage of the signal
of the source is above the specified threshold. If the VOX switch is in the ON position, the
input is activated when the VOX Switch trigger input is closed (see also section Mic/line input
with VOX, page 59).
Speech filter
If the Speech filter switch is in the OFF position, a speech filter is activated for the mic./line
input with VOX functionality. The speech filter improves the speech intelligibility by cutting off
the lower frequencies.
Phantom power
If the Phantom power switch is in the ON position, a phantom power supply is activated. This
switch only has to be put in the ON position if the source is a microphone that must receive
phantom power. If the source is not a microphone or if the microphone does not accept
phantom power, leave the switch in the OFF position.
Voice alarm router
The voice alarm routers are configured using an ID selector and a DIP switch:
Figure 6.6: Router settings
Router ID
The ID of the voice alarm router is set using an ID selector (17). Each voice alarm router must
have a unique ID (1 to 19). Use a small screwdriver to turn the arrow in the correct position.
The DIP switch (15) has 3 switches. The first switch (left) determines whether the router has
address 0x (1 to 9) or 1x (10 to 19).
Notice!
The switch “Firmware upgrade” must be set to “ON” to execute the firmware upgrade. When
the upgrade is complete, the switch must be set back to “OFF”.
Termination switch
The last voice alarm router in a sequence of looped-through routers must always be
terminated. Only for these voice alarm routers, put the Termination switch in the ON position.
6.3.2
6.3.3
6.3.4
6.3.5
6.3.6
6.3.7
82 en | Configuration Plena
2013.07 | V2.0 | Installation and Operation manual Bosch Security Systems B.V.
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