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ATX QFOT1310 Series, Руководство пользователя

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ATX QFOT1310 Series Скачать руководство пользователя страница 11

CHAPTER 3:  FEATURES

FUNCTIONAL DIAGRAM

4.  Functional Diagram

          Q-Series

®

 – QFOT1310 Series Broadcast Transmitter User Manual 

4-1

 

CHAPTER 4:  FUNCTIONAL DIAGRAM

OPTICAL

OUTPUT

POWER

INPUT

RF INPUT

-20 dB

TEST POINT

PRE-DISTORTION

BOARD

DFB LASER

RF TEST

ATC AUTOMATIC 

CONTROL 

CIRCUIT

APC AUTOMATIC 

CONTROL 

CIRCUIT

MICROPROCESSOR

VFD DISPLAY

POWER SUPPLY

NETWORK 

MANAGEMENT

AGC/MGC

DIGITAL

ATTENUATOR

PRE-

AMPLIFIER

POWER

AMPLIFIER

Содержание QFOT1310 Series

Страница 1: ...ansmitter User Manual Although every effort has been taken to ensure the accuracy of this document it may be necessary without notice to make amendments or correct omissions Specifications subject to change without notice Q SERIES ...

Страница 2: ...ATX in the United States and or other countries Products or features contained herein may be covered by one or more U S or foreign patents Other non ATX product and company names in this manual are the property of their respective companies ...

Страница 3: ...5 2 6 FUNCTION GUIDE 6 1 6 1 Front Panel Guide 6 1 6 2 Rear Panel Guide 6 1 6 3 Parameter Display 6 2 6 4 Alarm Indication 6 2 7 INSTALLATION ADJUSTMENT 7 1 7 1 Opening the Cover 7 1 7 2 Supplies Tools 7 1 7 3 Installation 7 1 8 CLEANING MAINTENANCE 8 1 9 AFTER SALE CUSTOMER SERVICE 9 1 10 TROUBLESHOOTING 10 1 11 SERVICE SUPPORT 11 1 11 1 Contact ATX Networks 11 1 11 2 Warranty Information 11 1 i ...

Страница 4: ...ii This page left intentionally blank ...

Страница 5: ...e some practices may lead to property damage or personal injury Please contact ATX Networks if you have any questions Important User Information Caution There are invisible laser beams from Fiber output ports which may cause permanent injury to skin or eyes Grounding first before turning on the power grounding resistance should be less than 4Ω so as to prevent laser and user from static damaging U...

Страница 6: ...Q Series QFOT1310 Series Broadcast Transmitter User Manual 1 2 CHAPTER 1 PREFACE This page left intentionally blank ...

Страница 7: ...ATV networks The product utilizes a high performance cooled DFB laser as the light source RF power digital automatic process technique along with RF pre distortion circuit At the same time a built in microprocessor monitoring system automatically ensures the excellent performance of this transmitter Q Series QFOT1310 Series Broadcast Transmitter User Manual 2 1 CHAPTER 2 OVERVIEW ...

Страница 8: ...Q Series QFOT1310 Series Broadcast Transmitter User Manual 2 2 CHAPTER 2 OVERVIEW This page left intentionally blank ...

Страница 9: ...utomatic processing technology Excellent pre distortion technology leading to the improved CTB CSO and C N Built in microprocessor controlling laser and RF performance Front panel VFD screen displaying the transmitter status Q Series QFOT1310 Series Broadcast Transmitter User Manual 3 1 CHAPTER 3 FEATURES ...

Страница 10: ...CHAPTER 3 FEATURES Q Series QFOT1310 Series Broadcast Transmitter User Manual 3 2 This page left intentionally blank ...

Страница 11: ...4 1 CHAPTER 4 FUNCTIONAL DIAGRAM OPTICAL OUTPUT POWER INPUT RF INPUT 20 dB TEST POINT PRE DISTORTION BOARD DFB LASER RF TEST ATC AUTOMATIC CONTROL CIRCUIT APC AUTOMATIC CONTROL CIRCUIT MICROPROCESSOR VFD DISPLAY POWER SUPPLY NETWORK MANAGEMENT AGC MGC DIGITAL ATTENUATOR PRE AMPLIFIER POWER AMPLIFIER ...

Страница 12: ...CHAPTER 4 FUNCTIONAL DIAGRAM Q Series QFOT1310 Series Broadcast Transmitter User Manual 4 2 This page left intentionally blank ...

Страница 13: ... 5 Specifications 5 1 Link Test Condition Test Condition Test link consists of the QFOT1310 transmitter 10 Km standard fiber attenuator and standard optical receiver Input RF channels are 59 PAL D channels equivalent to 77 NTSC channels The optical receiver input power is 1 dBm 5 2 Specifications Table ...

Страница 14: ...2 48 2 QFOT1310 06 53 0 52 0 51 0 50 1 49 1 48 1 QFOT1310 08 52 8 51 9 51 0 50 1 49 1 48 2 QFOT1310 10 52 9 51 9 51 0 50 1 49 1 48 2 QFOT1310 12 52 7 51 8 50 8 49 9 49 0 48 0 QFOT1310 14 52 4 51 5 50 5 49 5 48 6 47 8 QFOT1310 16 52 0 51 0 50 1 49 1 48 1 QFOT1310 18 52 5 51 6 50 6 49 7 48 7 47 9 QFOT1310 20 51 9 51 0 50 0 49 0 48 0 QFOT1310 22 52 2 51 4 50 4 49 4 48 6 47 8 OPTICAL LINK PATH C N SPE...

Страница 15: ...ective At that time the VFD will display MOD LEVEL XX dBmV and transmitter will shift back to AGC mode For instance if user s ideal Modulating level is 42 dBmV VFD would display MOD LEVEL 42 dBmV after operations shown above Please consult an ATX engineer for help with this feature 7 RF Input Test Port Standard 75Ω style F style test port for RF signal on line test Level tested from this port is 2...

Страница 16: ... buzzer will briefly tweet one time indicating that the transmitter has initialized successfully 6 3 2 Status Display After the transmitter has been powered ON and initialized pressing the UP or DOWN button on the front panel will scroll the VFD to display in turn the following 1 Welcome to ATX trademark 2 QFOT1310 xx SC module name SC indicated output fiber connector 3 POWER XX X mW output power ...

Страница 17: ...ptical power and confirm that the output optical power is the same as the value displayed on the VFD When measuring the optical power make sure that optical power meter is set for 1310nm wavelength and that fiber test jumper is clean e Measure the input RF signal level with a Cable TV meter or a spectrum analyzer making sure that input RF signal is in the range of 15 25 dBmV optimum value 17 dBmV ...

Страница 18: ...CHAPTER 7 INSTALLATION ADJUSTMENT Q Series QFOT1310 Series Broadcast Transmitter User Manual 7 2 This page left intentionally blank ...

Страница 19: ...an the connector carefully Once finished still wait 1 2 minutes until active connector surface is dry in the air c When the cleaned optical active connector is reconnected to the adapter please do not over tighten or force the connector to avoid damage to the ceramic ferrule d The fiber active connector should be cleaned on both ends If optical power is still low after cleaning clean the other end...

Страница 20: ...CHAPTER 8 CLEANING MAINTENANCE Q Series QFOT1310 Series Broadcast Transmitter User Manual 8 2 This page left intentionally blank ...

Страница 21: ...ce and life long customer service 1 year free guarantee time starts from the date indicated in products S N attached on side of products b If the equipment fails please contact ATX immediately c Don t try to repair the problem without help from an ATX technician d NOTE There are adhesive tape seals on both sides of the case Any unauthorized removal of this tape seal by the user will void the 1 yea...

Страница 22: ...CHAPTER 9 AFTER SALE CUSTOMER SERVICE Q Series QFOT1310 Series Broadcast Transmitter User Manual 9 2 This page left intentionally blank ...

Страница 23: ...ity 2 Contaminated optical active connector or adapter 3 Damaged ceramic ferrule in adapter 1 Swap to a good test jumper 2 Clean contaminated fiber active connector or adapter 3 Swap the damaged adapter After connecting to network all TV channels have obvious noise point 1 Low received optical power causing poor C N 2 RF input level too low for sufficient laser modulation 3 System link path C N to...

Страница 24: ...CHAPTER 10 TROUBLESHOOTING Q Series QFOT1310 Series Broadcast Transmitter User Manual 10 2 This page left intentionally blank ...

Страница 25: ...tain a valid RMA number for any ATX products that require service and are in or out of warranty before returning a failed module to the factory ATX Networks 1 501 Clements Road West Ajax ON L1S 7H4 Canada Tel 905 428 6068 Toll Free 800 565 7488 Fax 905 427 1964 Toll Free Fax 866 427 1964 Web www atxnetworks com E mail support atxnetworks com 11 2 Warranty Information All of ATX Networks products h...

Страница 26: ...n Canada Rev 11 10 ANW0787 1 501 Clements Road West Ajax ON L1S 7H4 Canada Tel 1 905 428 6068 Toll Free 1 800 565 7488 Fax 1 905 427 1964 Toll Free Fax 1 866 427 1964 www atxnetworks com support atxnetworks com ...

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