wiJAC
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00x
Wireless Intercom System
Operating Manual
Rev C
Page 4
4
Controls, Annunciators and Connectors
4.1
(ON/OFF) Button – Both units
The ON/OFF control is a push button switch marked with the
symbol and
is located on the left side of the unit. To turn the unit on, press the ON/OFF
button once. To turn the unit off, press and hold the ON/OFF button until the
annunciators turn off (approximately three to
five seconds).
4.2
Controls – JA60
4.2.1
VOX
(Voice Operated Switch)
The Voice Operated Switch control is a rotary knob marked VOX located on
the top of the JA60 Headset Adapter. To reduce the level of the sound
needed to route the microphone audio to the Intercom Adapter, turn the VOX
knob counterclockwise. To increase the level of the sound needed to route
the microphone audio to the Intercom Adapter, turn the VOX knob clockwise.
Adjust this setting for proper VOX operation as ambient noise levels change.
4.2.2
VOL
(Phones Volume Control)
WARNING
: Loud noise can cause hearing damage. Before
using the headset, set the volume to minimum, and then slowly
increase it to a comfortable listening level.
The volume control is a rotary knob marked VOL (volume) located on the top
of the JA60 Headset Adapter. To reduce the volume of the audio heard in
the headset rotate the VOL knob counterclockwise. To increase the volume
of the audio heard in the headset rotate the VOL knob clockwise.
4.2.3
PTT
(Push To Talk) Button
The intercom Push To Talk button is a push button switch marked ICS
located on the right side of the JA60 Headset Adapter. When the ICS PTT
button is pressed and held, the VOX threshold is overridden, microphone
audio is routed to the paired JA61 Intercom Adapter, and the ICS Key output
is activated.
4.3
Headset Jack – JA60
The headset jack is a TJT120 type connector on the top of the JA60 headset
adapter. Insert a U-174/U or U93A/U type Headset plug into the JA60
Headset Adapter headset jack.
4.4
Intercom Connector – JA61
The JA61 Intercom Adapter connects to the aircraft audio panel.
