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QDR

– QTech Digital Radio – Owner’s Manual – v1.4 – October 2014

www.qtech.co.nz

Page 15 of 16

User Notes

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Содержание QDR

Страница 1: ...QDR QTech 900MHz Digital Radio Owner s Manual ...

Страница 2: ... Connector 2 1mm DC Socket 5 3 2 Aerial Connector SMA Socket 5 3 3 USB Port Type B Socket 5 3 4 RS232 Serial Port DB9 Female Connector 5 3 5 RS485 Serial Port RJ12 Socket 5 4 0 Status Indicators 6 5 0 Applications 7 5 1 RS232 Mode 7 5 2 RS485 Half Duplex Mode 7 5 3 RS485 Full Duplex Mode 9 6 0 Jumper Settings 10 7 0 Configuration Parameters 11 8 0 Important Notes and Warnings 12 9 0 Troubleshootin...

Страница 3: ...der change control Any requests for change should go to QTech Data Systems Limited 12 Midas Place Middleton Christchurch 8024 New Zealand Ph 64 3 366 3713 Fax 64 3 365 2815 Email techsupport qtech co nz 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 recor...

Страница 4: ...adio can be configured to operate in Repeater Mode whereby it stores and retransmits any RF data packets it receives Each QDR P N PD9119 485 is supplied with the following Qty 1x QDR Radio Qty 1x Internal Stub aerial 2dBi gain Qty 1x 1m Power Cable Qty 1x 1m Serial Cable RS485 Alternatively P N PD9119 232 is the RS232 version which is supplied with a 1m RS232 serial cable A range of quality extern...

Страница 5: ...tions can provide exposed earth points and the SMPS can impose an AC voltage on the DC ground which can lead to damage Suitable cost effective plug packs are available from QTech P N PD5412 3 2 Aerial Connector SMA Socket This is used to connect a suitable aerial with an SMA plug Please refer to the notes in Section 8 of this manual 3 3 USB Port Type B Socket This is used for configuration via PC ...

Страница 6: ...e three status indicators on the QDR Colour Meaning Description Green Status Indicates radio status Yellow RxD Received valid RF data packet Orange TxD Transmitted a packet Notes RxD LED blinks upon receiving a valid packet A packet is valid if the Customer ID and 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 St...

Страница 7: ...Carrier Detect 2 RxD Output Receive Data 2 3 TxD Input Transmit Data 6 4 DTR Input Data Terminal Ready 5 GND Ground 5 6 Not Connected 7 RTS Input Request To Send 8 CTS Output Clear To Send 9 RI Input Ring Indication Please note For non standard installations please contact QTech for advice as there can be variations in the pinout configuration 5 2 RS485 Half Duplex Mode A typical use of this mode ...

Страница 8: ...er Position JP3 In JP4 Out JP5 In JP6 In Pinout of RS485 Port when in Half Duplex Mode QDR XL4 eXcel Signal Input Output Description Pin Pin Pin 1 1 1 NC GND Ground 2 2 3 B Input Output Inverting Input Output 3 3 2 A Input Output Non inverting Input Output 4 4 4 NC 5 5 6 6 GND Ground Typical Half Duplex Connection Note Line termination resistors are inside the QDR 120 Ohm A B 120 Ohm A B ...

Страница 9: ... for further details on the jumpers Jumper Position JP3 In JP4 In JP5 Out JP6 Out Pinout of RS485 Port when in Full Duplex Mode Pin Signal Input Output Description 1 GND Ground 2 B Input Inverting Receiver Input 3 A Input Non inverting Receiver Input 4 Z Output Inverting Driver Output 5 Y Output Non inverting Driver Output 6 GND Ground Typical Full Duplex Connection Note Line termination resistors...

Страница 10: ...d 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 JP3 JP4 JP5 6 JP6 6 JP7 6 JP1 6 JP2 6 ...

Страница 11: ...tions Notes Radio Type 2 wire RS485 4 wire RS485 RS232 Standalone Repeater Repeater with 2 wire RS485 Repeater with 4 wire RS485 Repeater with RS232 Hopping Sequence 1 6 Power Level 1 8 1 1 mW 6 125 mW for Yagi 7 250 mW 8 500 mW for Collinear Customer Number 1 255 Site Number 1 255 Radio Address 1 255 RSSI Mute Threshold 128 0 dBm Background RSSI 128 0 dBm Read only Packet RSSI 128 0 dBm Read only...

Страница 12: ...e DC power supply used for this product MUST have a grounded negative or be a linear transformer based plug pack The reason is that the aerial programming port and external connections can provide exposed earth points and the SMPS can impose an AC voltage on the DC ground which can lead to damage Suitable cost effective plug packs are available from QTech P N PD5412 Note SMA Aerial Connectors QDR ...

Страница 13: ...power applied Blown fuse Replace fuse Use 1 Amp quick blow type Insufficient power supply voltage Check supply and provide suitable power supply No Communication RS485 jumpers not matching setup mode Check settings and change to suit RS485 line termination Check settings and change to suit Incorrect serial data rate Check settings ensure it is 9600 Baud No Parity Insufficient Rx signal power Use a...

Страница 14: ...lute max Standby supply current 85mA 12 volts Transmit supply current 150mA 12 volts Specification Frequency 921 5 928 0MHz RF Output 1mW to 250mW Technology FHSS Frequency Hopping Spread Spectrum Modulation GFSK Gaussian Frequency Shift Keying Hopping Channels 6 Modes point to point point to multipoint repeater Maximum packet size 256 bytes Environmental 0º to 70º non condensing Certification AS ...

Страница 15: ...QDR QTech Digital Radio Owner s Manual v1 4 October 2014 www qtech co nz Page 15 of 16 User Notes ...

Страница 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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