Northern Airborne Technology CC250 - Manual (Page 17)

CC450-0V2 Communications Controller
Installation and Operation Manual
2.6.2.2
Auxiliary Board
2.6.3 Receive Audio VOX Squelch Circuit Jumpers
These jumpers enable or disable the Receive Audio VOX Squelch circuitry for the RT1, RT2, RT3 and
RT4 channels. Refer to Section 5.6.2 of this manual if any of these jumpers are enabled.
Jumper JP201 (RT3)
Position
Squelch Disable Logic Polarity
1-3, 2-4 Active Low (Normal Position)
1-2, 3-4 Active High
Jumper JP202 (RT4)
Position
Squelch Disable Logic Polarity
1-3, 2-4 Active Low (Normal Position)
1-2, 3-4 Active High
Jumper JP105 (RT2)
Position Receive Audio VOX Circuit
1-2
Disabled (Normal Position)
2-3 Enabled
Jumper JP103 (RT1)
Position Receive Audio VOX Circuit
1-2
Disabled (Normal Position)
2-3 Enabled
Jumper JP204 (RT4)
Position Squelch VOX Circuit
1-2
Disabled (Normal Position)
2-3 Enabled
Jumper JP203 (RT3)
Position Squelch VOX Circuit
1-2
Disabled (Normal Position)
2-3 Enabled
The diagram below shows the applicable section of the auxiliary board.
CC450-xV2
Section 2 Rev: 1.00 Issue 1 Page 2-7
ENG-FORM: 805-0114.DOT
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