0 jumper settings – QTech Data Systems QDR Digital 900MHz Radio User Manual
Page 10
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QDR – QTech Digital Radio – Owners Manual – v1.3 – August 2012
10
www.qtech.co.nz
Tel: 03 3663713
6.0 Jumper Settings
A list of all jumpers and their positions on the QDR has been provided for reference.
Jumper
Description
JP1
ISP Programming Enable
JP2
ISP Programming Enable
JP3
RS485 120 Ohm Line termination on A-B
JP4
RS485 120 Ohm Line termination on Y-Z
JP5
RS485 A-Y Link
JP6
RS485 B-Z Link
JP7
RF Power Amplifier Bias Disconnect
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