GAI-Tronics ITA2000A ITA2000A Series Tone Remote Adapter with Scanning User and Installation Manual - Manual (Page 30)

Installation ITA2000A Series Tone Remote Adapter
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Jumpers
The default setting of the circuit board jumpers provide normal operation and should be changed only for
special applications. Remove the cover of the ITA2000A to access these jumpers. The “A” and “B”
positions are indicated on the PCBA.
Jumper Table
A = Active High B = Active Low
Jumper
No. Default
Value Description
JU2 B Radio PTT
JU3 B Channel Steer Output 4
JU4 B Channel Steer Output 3
JU5 B Channel Steer Output 2
JU6 B Channel Steer Output 1
JU7 B Channel Steer Output 0
JU8 B Accessory CSQ Output
JU9 B Accessory PTT Output
JU10 B Channel Steer Output 4
JU11 B Channel Steer Output 3
JU12 B Channel Steer Output 2
JU13 B Channel Steer Output 1
JU14 B Channel Steer Output 0
−20 dB Out Reduces radio RX by −20 dB
JU20 2W Select 2-wire/4-wire audio
JU21 2W Select 2-wire/4-wire audio
JU22 In Enables audio hybrid for 2-wire configuration
JU24 2W Select 2-wire/4-wire enable
JU30 Out Converts the B+ supply to a 15 V power supply to increase audio
output.
JU31 Pins 1 and 2
Pins 2 and
3* Selects Channel Steer 4 Output.
Selects J3-9 as alternate dc input.
*If pins 2 and 3 are selected, Channel Steer Bit 4 will be disabled.