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WR-G35DDCi Multichannel Coherent Application Guide for Extended topology configuration (ETC)

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Published by
Radixon Group Pty. Ltd.
45 - 47 Islington Street, Collingwood, Victoria 3066 Australia

© 2022 Radixon, Melbourne, Australia

All rights reserved. No part of this book may be reproduced or transmitted in any form or by any means without the written
permission of the publisher.

Trademarks

WiNRADiO, G3, G35DDC and

Excalibur Ultra

are trademarks of WiNRADiO Communications

All other brand and product names are trademarks of their respective owners.

Published in Australia

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Содержание WR-ETC-100

Страница 1: ...WiNRADiO WR ETC 100 for the G35DDCi Multichannel Coherent Application Guide for the Extended Topology Configuration option ETC Version 1 0...

Страница 2: ...igger input 10 2 2 8 Locked indicator 10 2 2 9 SMA patch cables for Coherent clock distribution 11 2 2 10 Digital synchronization cables for each WR G35DDCi receiver 11 2 2 11 Digital synchronization...

Страница 3: ...into a PC 26 3 2 Installing the receiver into a PC 28 3 3 Installing the ETC board into the PC 29 3 4 Interconnecting the Coherent Clock Generator board 31 3 5 Installing the Coherent clock generator...

Страница 4: ...ETC installation All necessary connections between the receivers and other supportive hardware are realized externally outside of the PCs To couple up to eight receivers the WR CC1PPS 100 WiNRADiO WR...

Страница 5: ...a PC PC chassis and other PC connections omitted for clarity The WR CC1PPS 100 kit is also required for coherent operation but is not shown in this picture The coaxial cables shown in the picture whi...

Страница 6: ...nt system 2 1 WR G35DDCi connectors The connectors required for coherent operation of the WR G35DDCi receivers are shown in Pictures 2 1 and 2 2 present when the CR option has been fitted Picture 2 1...

Страница 7: ...Clock Kit consists of the following components shown in Picture 2 3 1 Coherent clock generator board with 1PPS input 2 SMA patch cables for Coherent clock distribution 9 pcs 3 Digital synchronization...

Страница 8: ...ock signals generated by this board out of the PC chassis so the sampling clock can be distributed to the receivers externally to the PC As the sampling clock is distributed externally there is no req...

Страница 9: ...d described in Section 2 2 9 All ports are equivalent therefore any receiver within a coherent group can be connected to any of these ports However unused ports have to be terminated using the 50 ohm...

Страница 10: ...equency reference input REF IN serves as a frequency reference for the 100 MHz sampling clock generator It is a 50 ohm terminated SMA connector A 10 MHz reference signal must be provided on this input...

Страница 11: ...G35DDCi receivers which are in coherent operation For interconnection only use the original WiNRADiO SMA patch cables supplied with the Clock Kit as these are specially matched to be coherent Picture...

Страница 12: ...igital synchronization cable for the Coherent clock generator board unused in the ETC configuration see text 2 2 12 Frequency reference SMA interconnect cable The frequency reference SMA interconnect...

Страница 13: ...have terminators installed on them A minimum of two WR G35DDCi receivers can be connected as a coherent pair so six terminators are needed to terminate the sampling clock outputs A seventh terminator...

Страница 14: ...s consists of one 50 ohm terminator installed on one of the sampling clock outputs and an SMA jumper cable as described in Section 2 2 15 This interconnects the sampling clock from the sampling clock...

Страница 15: ...generator board The purpose of the pin header and its corresponding jumper is to provide the ability to turn off the local sampling clock oscillator on one of the Coherent clock generator boards when...

Страница 16: ...from the Digital synchronization connector of the WR G35DDCi described in Section 2 1 and shown in the Picture 2 2 into signals carried over standard 50 ohm coaxial SMA cables This enables the receive...

Страница 17: ...UT connector The SYNC IN connector on the first in chain board can be left unconnected or it can be used to supply the 1PPS signal when time stamping functionality is required The SYNC OUT connector o...

Страница 18: ...ietary to WiNRADiO therefore no further specification is provided 2 3 4 SMA connector SYNC OUT The purpose of the SYNC OUT connector is to transmit the synchronization signal to the receiver next in t...

Страница 19: ...MA adapter to the Coherent clock input of the receiver shown in Picture 2 1 2 3 7 Digital synchronization cable for ETC board The digital synchronization flat cable for the ETC board provides connecti...

Страница 20: ...the right and is used to link the receivers in a daisy chain like manner to synchronize the receivers for coherent operation Each SYNC CABLE has the delay value specified on its sticker The delay val...

Страница 21: ...le for external connection of the sampling clock the CLOCK cable The SMA coaxial cable for the external connection of synchronization the SYNC cable is identical to the CLOCK cable The cables are dist...

Страница 22: ...r board described in Section 2 2 1 in the ETC configuration In ETC configuration this multi SMA adapter is installed in the same PC chassis as the Coherent clock generator board into a PCI PCIe positi...

Страница 23: ...interconnections have to be done externally through the ETC board outside of the PC even if two or more receivers are installed in the same PC Another part of the setup is the Coherent clock Generato...

Страница 24: ...DCi Multichannel Coherent Application Guide for Extended topology configuration ETC 24 Picture 3 1 Sampling clock and digital sync signal interconnection of four WR G35DDCi CR receivers in ETC configu...

Страница 25: ...t Application Guide for Extended topology configuration ETC 25 Picture 3 2 Sampling clock and synchronization interconnection of eight WR G35DDCi CR receivers in ETC configuration Channels 3 to 7 are...

Страница 26: ...digital synchronization port of each WR G35DDCi receiver also leaving the other end of cable unconnected for now The digital synchronization interface connector is shown in Picture 2 2 Please refer t...

Страница 27: ...on ETC 27 A B C Picture 3 4 Installing the FPC connector for clarity the cable shown here is of another color Picture 3 5 Digital synchronization cable installed to a receiver The cable orientation is...

Страница 28: ...t next to the receiver and is described in next Section 3 3 Installation of multiple receivers inside the same PC is allowed in the ETC configuration however each receiver has to be accompanied with i...

Страница 29: ...connector of the ETC board as show in Picture 3 7 1 For the FPC Flat Printed circuit Cable connector installation instructions please refer to Picture 3 4 Secondly connect the loose end of the 30 cm S...

Страница 30: ...configuration ETC 30 Picture 3 8 The completed installation of the ETC board into the PC next to the receiver Picture 3 9 The completed installation of the receiver shown on the left and the ETC boar...

Страница 31: ...e PC The CLOCK SMA coaxial cables are used for the external connections of the sampling clock described in Section 2 3 4 There is no need to connect any particular sampling clock output of the Clock B...

Страница 32: ...d into a PCIe slot The Coherent clock generator board has to be prepared for installation by interconnecting it with the PCIe bracket multi SMA adapter as described in the previous Section The 1PPS in...

Страница 33: ...rt by installing the Clock Board into a PCIe slot of the PC Next install the PCIe Bracket multi SMA adapter into a position next to the Clock Board As the PCIe bracket multi SMA interface is a passive...

Страница 34: ...topology configuration ETC 34 Picture 3 12 The completed installation of the Coherent Clock Generator board on the left into the PC together with the PCIe bracket multi SMA adapter on the right instal...

Страница 35: ...ter it has been installed into a PC as shown in Picture 3 13 Please use the Frequency reference SMA interconnect cable as described in Section 2 2 12 Picture 3 13 Installing the frequency reference SM...

Страница 36: ...de in a star like manner always linking one of the clock outputs of the Clock Board through the PCIe Bracket multi SMA adapter with one clock input of the receiver on the ETC card connected to it as s...

Страница 37: ...tween the receivers only This is achieved by using the dedicated ETC card connected to each receiver as described in Sections 3 2 and 3 3 Each receiver along with its dedicated ETC card are typically...

Страница 38: ...ends it through its SYNC OUT to the receiver next in the chain This way the synchronization signals propagate down the synchronization chain from receiver to receiver and finally to the receiver which...

Страница 39: ...he 1PPS signal at all If the 1PPS signal is not used the SYNC IN input on the ETC card connected to the master receiver can be left unconnected For the technical specification of the SYNC IN input req...

Страница 40: ...3 Installation It generates the sampling clock and distributes it to eight receivers It also generates the frequency reference if an external frequency reference is not used When using an external fre...

Страница 41: ...ded at the rear of the PC where the Clock Boards are installed All sixteen sampling clock outputs connected to PCIe Brackets multi SMA Adapters are equivalent therefore any receiver within a coherent...

Страница 42: ...nization interface of both master and slave Clock board are unused in the ETC configuration and have to be left unconnected For connection of a 1PPS signal please refer to Section 3 9 Also please note...

Страница 43: ...erent Application Guide for Extended topology configuration ETC 43 Picture 4 3 Sampling clock and digital sync signal interconnection of sixteen WR G35DDCi receivers Clock interconnect marked in red i...

Страница 44: ...output level 2 dBm min into 50 ohm Number of sampling clock output ports 8 Reference frequency 10 MHz REF IN input impedance 50 ohm REF IN input level 2 dBm min REF IN frequency tolerance 20 ppm REF O...

Страница 45: ...any comments questions or suggestions please use our general enquiry form at www winradio com enquiry Published by Radixon Group Pty Ltd 45 47 Islington Street Collingwood Victoria 3066 Australia 202...

Страница 46: ...WiNRADiO C O M M U N I C A T I O N S w w w w i n r a d i o c o m...

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