VLH-3000Page 8
5 CONTROLS AND SWITCHES
NOTE
This section defines each control of the Loud Hailer. See Figure 3 for
location of controls. For detailed operating instructions refer to section
“6 OPERATION.”
LISTEN/PWR Knob
Turns the VLH-3000 on and off as well as adjusts the volume level of the
built-in speaker or external speaker in the LISTEN-BACK mode.
AUTOMATIC SIGNALING Buttons
IC Knob
Adjusts the volume level of the Intercom Speaker in the INTERCOM
mode.
PA Knob
Adjusts the PA horn level in the HAIL or AUTOMATIC SIGNALING mode.
KEYBOARD
IC 1 - Activates the Intercom Speaker 1.
IC 2 - Activates the Intercom Speaker 2.
PA - Activates the PA horn.
FWD - Activates the Forward (Front) PA horn.
BOTH - Activates the both Forward (Front) and Aft (Rear) PA horns.
AFT - Activates the Aft (Rear) PA horn.
DISPLAY
- Indicates the Foward (Front) PA horn is selected.
- Indicates the Aft (Rear) PA horn is selected.
- Steady: Indicates Intercom Speaker 1 is selected.
Blink: Intercom 1 is calling the VLH-3000.
- Steady: Indicates Intercom Speaker 2 is selected.
Blink: Intercom 2 is calling the VLH-3000.
- Indicates the PA horn is selected
INTERNAL SPEAKER
Provides audio from intercom speakers or PA Horn.
INTERCOM Buttons
IC 1 - Activates the Intercom Speaker 1.
IC 2 - Activates the Intercom Speaker 2.
PTT Button
Activates the microphone.
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