
4000 Digital Series II Issue 1.4 Panel User Guide
STA0380 Page 15
3.4.11 Headset Socket (DIN 5)
The 5 pin Headset Socket is used to connect an optional headset for use when the main gooseneck
microphone and panel loudspeaker are not required.
(Headsets should be used in areas where a number of control panels are used in close proximity, this
should avoid any possibility of howlround (audio feedback) occurring).
3.4.12 Headset Select Pushbutton
The Headset Select Pushbutton is used to select headset operation. The red LED is illuminated to
indicate that the headset microphone is active and the detachable microphone and loudspeaker are
muted.
3.4.13 Microphone Mute Pushbutton
Press the Microphone Mute Pushbutton to mute the active microphone. The red LED is illuminated whilst
the microphone is muted. Another press will re-enable the microphone.
3.4.14 Level Control Pushbutton
Press the pushbutton to enable the crosspoint level of a source to be adjusted. The red LED is
illuminated. Press the button corresponding to the source to be adjusted and use the rotary encoder to
adjust the level as required. Pressing the level control pushbutton again will return the Control Panel to
normal operation.
NOTE: If no action is taken within 20 seconds of pressing the pushbutton then the system will revert to
normal operation.
3.4.15 Loudspeaker Cut Pushbutton
Press the pushbutton to disable the internal loudspeaker. The red LED is illuminated. Another press will
enable the loudspeaker again.
3.4.16 Rotary Encoder
The Rotary Encoder is used for level control and selecting the Soft Mode option. Turn the Rotary
Encoder clockwise to increase the Main, Auxiliary or Crosspoint volume, anti-clockwise to decrease the
volume, when in each selected level control mode. The level can be adjusted over a range of values from
0.0 to 10.0 in 0.5 steps. The values correspond to a gain range of -70dB to +12dB, where the default
value of 5.0 corresponds to approximately 0dB.
Contact Vitec Group Communications for suitable External Loud-
speaker options
Your panel loudspeaker reduces volume automatically when a talk key
is pressed. This is to help reduce the chance of howlround (audio
feedback) occurring.
Consult the Vitec Group Communications Installation Guide for fur-
ther details.
Comentarios a estos manuales