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Table of Contents
Summary of Contents for QTech QDR
- Page 1 QDR – QTech 900MHz Digital Radio Owner’s Manual...
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Page 2: Table Of Contents
QDR – QTech Digital Radio – Owner’s Manual – v1.4 – October 2014 Table of Contents Document Revision History ..................3 Change Control ...................... 3 Confidentiality and Copyright ................. 3 Introduction ........................ 4 Connections ....................... 5 Power Connector – 2.1mm DC Socket ..............5 Aerial Connector –... -
Page 3: Document Revision History
1.2 Confidentiality and Copyright Copyright QTech Data Systems Limited 2012. All rights reserved. This document is the property of QTech Data Systems Limited. It may not be copied, distributed or recorded on any electronic or other medium without the express written permission of QTech Data Systems Limited. -
Page 4: Introduction
The QDR is a Frequency Hopping Spread Spectrum (FHSS) digital radio operating in the 921.5 – 928.0MHz ISM band. The QDR is used for connecting serial devices as a wireless link. It can be regarded as a wireless alternative to RS232/RS485 cable connections. -
Page 5: Connections
QDR – QTech Digital Radio – Owner’s Manual – v1.4 – October 2014 3.0 Connections The connections of the QDR are identified below: 3.1 Power Connector – 2.1mm DC Socket Centre pin +V. Spare power cables are available, P/N CB-QDR-PWR. -
Page 6: Status Indicators
Site-ID in the received packet are equal to the receiving radios Customer-ID and Site-ID. The packets must also have a valid checksum. Status LED issues 6 fast flashes to indicate that the QDR has been reset/repowered. The Status LED flashes slowly to indicate the QDR processor is running correctly. -
Page 7: Applications
A typical use of this mode would be: RS232 DATRAN Master RTU Slave RTU The serial cable is connected from the RS232 port of the QDR to an RS232 port of the RTU. Pinout of RS232 Port and interface cable connections. RJ45... - Page 8 QDR – QTech Digital Radio – Owner’s Manual – v1.4 – October 2014 Jumper Settings for Half Duplex RS485 (2-Wire) Refer to Section 6 for further details on the jumpers Jumper Position Pinout of RS485 Port when in Half Duplex Mode...
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Page 9: Rs485 - Full Duplex Mode
QDR – QTech Digital Radio – Owner’s Manual – v1.4 – October 2014 5.3 RS485 - Full Duplex Mode This mode is used for serial data communications where all four signal lines are required. Jumper Settings for Full Duplex RS485 (4-Wire) -
Page 10: Jumper Settings
QDR – QTech Digital Radio – Owner’s Manual – v1.4 – October 2014 6.0 Jumper Settings A list of all jumpers and their positions on the QDR has been provided for reference. Jumper Description ISP Programming Enable ISP Programming Enable... -
Page 11: Configuration Parameters
QDR – QTech Digital Radio – Owner’s Manual – v1.4 – October 2014 7.0 Configuration Parameters The QDR is configured by QTech via the USB Port using a desktop application. The available parameters are defined below: Parameter Options Notes Radio Type... -
Page 12: Important Notes And Warnings
Transmitted RF Power Levels The QDR must never be operated in violation of RSM license conditions. Ensure that the Transmit Power Level and aerial system design do not exceed the limitation. Please be considerate of other users of the ISM Band. -
Page 13: Troubleshooting
QDR – QTech Digital Radio – Owner’s Manual – v1.4 – October 2014 A QDR variant is available which has a reverse polarity RP-SMA aerial connector which will allow you to use the existing aerials. Please order P/N PD9119-U/G. Note – The RS485 cable differs depending on whether connecting to a XL4 RTU (RJ12 to RJ12) or another device (RJ12 to RJ10), the respective P/N are CB-QDR-RS485-XL4 &... -
Page 14: Specifications
QDR – QTech Digital Radio – Owner’s Manual – v1.4 – October 2014 9.0 Specifications Performance Indoor/Urban range (2.1dBi dipole antenna): Up to 500m Outdoor line-of-site range (2.1dBi dipole antenna): Up to 5km Outdoor line-of-site range (9dBi high gain yagi antenna): Up to 10km... -
Page 15: User Notes
QDR – QTech Digital Radio – Owner’s Manual – v1.4 – October 2014 User Notes www.qtech.co.nz Page 15 of 16... - Page 16 QTech Data Systems Ltd 12 Midas Place, Middleton, Christchurch 8024 PO Box 9087, Tower Junction, Christchurch 8149 Ph: +64 3 366 3713 Fx: +64 3 365 2815 admin@qtech.co.nz techsupport@qtech.co.nz www.qtech.co.nz...
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