wiJAC
™ Wireless Intercom System
Operating Manual
Rev B
Page 4
3.9
Low Battery Annunciator (LOW BATT)
The low battery (LOW BATT) annunciator is a red LED located on the left
side of the unit. When a unit is turned on, the LOW BATT annunciator will
illuminate for 2 seconds. When the battery voltage is low the LOW BATT
annunciator will flash once every 1.5 s. When the unit is turning off, the
annunciator will illuminate until the unit is off.
3.10
Microphone Voice Operated Switch Control (VOX)
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 JA61 Intercom Adapter, turn
the VOX knob CCW (counter-clockwise). To increase the level of the sound
needed to route the microphone audio to the JA61 Intercom Adapter, turn
the VOX knob CW (clockwise). This setting will vary with ambient noise
conditions, and the quality of the microphones connected to the system.
3.11
Mounting Clip
The mounting clip is on the rear of the JA61 Intercom Adapter. Clip it to the
aircraft's mounting bracket or place the JA61 Intercom Adapter in a secure
location.
3.12
ON/OFF Control
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 PWR ON and LOW BATT annunciators turn off.
3.13
Pairing Registration Number
The pairing registration number is marked on a label in on the back of each
unit. Headset Adapters will connect to only the Intercom Adapter with the
same paring registration number.
3.14
Panel Plug
The panel plug is a TP120 type connector on the top of the JA61 headset
adapter. Insert the JA61 Intercom Adapter's panel plug in to the aircraft's TJ-
120 or TJT120 headset jack.
3.15
Phones Volume Control (VOL)
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 CCW. To increase the volume of the audio
heard in the headset rotate the VOL knob CW.
WARNING
: Loud noise and sound can cause hearing damage.
Before using the headset, set the volume to minimum. Then slowly
increase the volume to a comfortable listening level.
