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Python Plus Operation

This chapter describes the operation of the Python Plus. Please keep in mind that once the
system is properly set up and configured, there is very little to do during normal operation.

Fiber Optical Channel Monitoring   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  28
Using the Python Plus Optical Measurement Display  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  29
Best Practices   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  32
Troubleshooting   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  32

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Содержание Grass Valley Python Plus

Страница 1: ...13 00055 000 February 2019 v1 2 Python Plus User s Guide Multichannel Fiber Optic SDI and IP Transport System with CWDM ...

Страница 2: ...tility model or design Liable to technical alterations in the course of further development Trademarks Grass Valley LDX Series and derivatives are trademarks of Belden Inc or Grass Valley Canada All other tradenames referenced are service marks trademarks or registered trademarks of their respective companies Website Visit the Grass Valley public website to download the latest user s guide updates...

Страница 3: ...Y3 RX card 18 PY3 TX card 19 Python Plus rear panel plates 20 Python Plus Units with CWDM and Fiber Capability Dual Input Output 22 Python Plus Rear panel operation 24 Area A Rear Panel Power Connectors 24 Redundant Power Supply Usage 25 Area B ST Fiber Connectors 25 Power Connector Wiring 25 Fiber ADAP Power Supplies 26 4 Python Plus Operation 27 Fiber Optical Channel Monitoring 28 Using the Pyth...

Страница 4: ...ontents Best Practices 32 Troubleshooting 32 5 Understanding Python Plus Model Numbers 33 Part number ordering options 34 Frame 34 Coaxial Cards 34 Fiber Cards 34 Rear Options 34 Blank Plates 34 6 Specifications 35 ...

Страница 5: ...5 About Python Plus This chapter provides an overview of the Python Plus and includes the safety and warranty information about it About the Python Plus System 6 Safety and Fiber Optic Systems 9 ...

Страница 6: ...t and receive in the same unit Please see Available Models on page 12 for the model list Python Plus units accept electrical digital signals via BNC ranging from 19 4 Mbps up to 12 Gbps uncompressed HD SDI Along with LEDs to indicate the presence of an HD SDI signal at each BNC input and output the Python Plus features an integrated optical power meter for monitoring the received power for each op...

Страница 7: ...lable I O cards PositionsA 3andA 4eachhaveafourchanneldetectorcardthatconvertstheincoming de multiplexed fiber optic feed into individual SDI Data signals The eight input signals are multiplexed B and sent to the CWDM Band Coupling I O card D This I O card manages on a single ST Fiber Connector the eight outgoing and eight incoming Fiber Optic signals 16 signals are coupled on to a single Fiber I ...

Страница 8: ...otective caps on the optical connectors whenever the fiber is disconnected Product Returns In the unlikely event of damage to your Python Plus during shipping or delivery take note of any damage with the delivery or shipping service If any component does not work correctly out of the box please contact Grass Valley Fiber Solutions service Contact Us on page 37 If the problem cannot be remedied thr...

Страница 9: ...s instrument other than any procedures as instructed in this Guide Refer all servicing to the Fiber Solutions division of Grass Valley see Contact Us on page 37 Always use cable connector caps when the cables are not connected This protects the connector from damage and the unlikely event of exposure to an operating optical link Keeping the caps in place when the connectors are not in use will pre...

Страница 10: ...10 About Python Plus FCC Part A Manual Notice ...

Страница 11: ...11 Hardware and Block Diagrams This chapter lists the models available with the Python Plus and lists the block diagrams of these models Available Models 12 Block Diagrams 13 ...

Страница 12: ...s The Python Plus is available in a variety of standard models The following list covers the models available at the time of publication Please see Understanding Python Plus Model Numbers on page 33 for an explanation of how to understand Python Plus Model Numbers ...

Страница 13: ...13 Python Plus User Guide Block Diagrams PY3 FRAME PY3 TX G PY3 RX and W4 TX ST Fig 2 1 4 Channels Python Plus ...

Страница 14: ...14 Hardware and Block Diagrams PY3 FRAME PY3 TX G PY3 RX and W4 TX ST ...

Страница 15: ...15 Python Plus Components This chapter describes the main components of the Python Plus Python Plus configuration 16 Python Plus front panel 17 Python Plus rear panel plates 20 ...

Страница 16: ... Fiber Coaxial Cards and Rear panel options The Python Plus has two main interface interconnection panels The Front panel The Rear panel Fig 3 1 Python Plus Frame front panel Fig 3 2 Example of a Python Plus front panel with four mounted modules Fig 3 3 Empty Python Plus Frame back panel Fig 3 4 Example of a Python Plus back panel with fiber plates installed PYTHON PLUS 1 3 2 4 9 11 10 12 5 7 6 8 ...

Страница 17: ...nd display panel Fig 3 5 Power and display area The Power and Display Area has four features 1 CHANNEL SELECT scrolls the LED display through each of the Fiber Channels 2 Digital Display display optical power levels firmware version and operating temperature 3 Power Monitor LED indicates the current Power status 4 ON OFF Switch controls power to the Python Plus unit For information on how to use t...

Страница 18: ...nd to the four Fiber Optic inputs on the back panel For CWDM units the four outputs are de multiplexed from a single Fiber Optic input Each output has an LED indictor that indicates the following status Green the Python Plus is receiving a signal for the indicated channel over the Multiplexed Fiber Optic Cable and SDI signal is present Alternating between Red and Green a Fiber Optic connection is ...

Страница 19: ...iving unit On pass through models conversion to fiber optical signal occurs individually and four Fiber Optic optic outputs are available on the rear panel The SDI DATA connections can carry a variety of Baseband and Data type signals see Specifications on page 35 for a list Each input has a LED indicator that indicates the following Green SDI signal present Unlit Nothing connected TP3 TX card Fig...

Страница 20: ...escribe the different types of Rear Panel options that are available but the caption letters in each figure refers to the following sections A Power Connector Area see Area A Rear Panel Power Connectors on page 24 B Rear panel options Area see below TR LC plate Fig 3 13 Rear panel option 1 S2 TX LC plate Fig 3 14 Rear panel option 2 S2 RX LC plate Fig 3 15 Rear panel option 3 TR ST plate MAIN AUX ...

Страница 21: ...21 Python Plus User Guide Fig 3 16 Rear panel option 4 TX ST plate Fig 3 17 Rear panel option 5 RX ST plate Fig 3 18 Rear panel option 6 ...

Страница 22: ... has two outputs each carrying eight signals Both outputs are active all the time The receiver has two inputs each carrying eight signals The Python Plus unit has an internal splitter which receives fiber optic signals from each input If a good optic signal is detected on the primary side of the splitter that set of eight is used If for any reason the optic signal is poor or missing the system wil...

Страница 23: ...Fig 3 21 Python Plus Receiver with Primary and Backup Inputs The Python Plus Receiver equipped with primary and secondary Fiber Optic inputs utilizes an Optical Switch to detect which of the incoming Fiber Optic signals is best ...

Страница 24: ...DC power supply connected to the provided terminal block The main power supply can be of one type XLR or direct wire while the Aux power supply is of the other type Fig 3 23 Rear Panel Power Connectors 1 2 Connectors for the Main 12 18 VDC power supply XLR and Direct wire terminal block 3 4 Connectors for the Main 12 18 VDC power supply XLR and Direct wire terminal block 5 MAIN AUX Indicator LEDs ...

Страница 25: ...ors Fig 3 24 MUX IN and OUT connectors The MUX IN connector carries up to eight channels from the opposite Python Plus while the MUX OUT connector carries the up to eight channels to the opposite Python Plus These signals appear on the front panel as four SDI DATA channels and four Fiber SDI DATA channels Power Connector Wiring Figure Pin Function 1 Ground 2 Unused 3 Unused 4 Power 12 VDC This mat...

Страница 26: ...d providing power through an XLR 4 Female connector can be used Please contact Grass Valley Contact Us on page 37 or your authorized dealer for more information Direct wire power connections from a customer provided power source can also be used with the Terminal Block power connections on the back panel Fig 3 25 Power Supply Supplied with 4PIN XLR A4F connector for the power plug on the Python Pl...

Страница 27: ...the Python Plus Please keep in mind that once the system is properly set up and configured there is very little to do during normal operation Fiber Optical Channel Monitoring 28 Using the Python Plus Optical Measurement Display 29 Best Practices 32 Troubleshooting 32 ...

Страница 28: ...laser output strength is 6 dBm Cable length affects signal strength as does the number of connections between the two Python Plus units Any use of repeaters of cable bulkhead connector will produce a minimal signal loss through each connection The optical output from each transmitter is generated by an infrared laser diode that is coupled to a CWDM and onto the fiber User connections on the Python...

Страница 29: ...the CHAN SEL switch Scroll through the signal channels by flicking the switch to the right The system reports on the installed SDI channels and the installed fiber channels being transmitted by the unit In a 4 x4 Transceiver the CHAN SEL switch will display the four Transmit channels first followed by the four Receive Channels After the last channel the display will show the current ambient temper...

Страница 30: ...ecause the laser for that channel turns On and Off until SDI is present This causes corresponding individual RX channel LED to blink Red Green Condition 3 Active usable optical link with SDI Data When the optical link is good and a valid SDI data stream is present the optical power level will be indicated Depending on the loss over the distance of the fiber cable run this value could range from ap...

Страница 31: ...y Technical Information Display Flicking the CHAN SEL switch to the left provides additional technical information that identifies the specific physical channel that is being measured This information is presented in scrolling format four characters wide Fig 4 5 Technical Information display CHANNEL SELECT T e m p P y t h o n P L U S R E V 5 9 T e m p 2 4 C C L I C K L E F T CHANNEL SELECT c h a n...

Страница 32: ...ure but in instances where it must be used in table top operation ensure that the connectors on both the front and rear panels cannot be damaged by being inadvertently struck or pulled Secure the power supplies and power connections so that power is continuous Once the system is set up and running monitor the system display carefully on the Python Plus Becausethe system is digital the Signal Stren...

Страница 33: ...33 Understanding Python Plus Model Numbers This chapter explains how to decode the Python Plus Part Number Sample part numbers are decoded at the end of this section Part number ordering options 34 ...

Страница 34: ...er CWDM Rear Options S2 RX XX Rear panel receiver 2 ch XX UPC S2 TX XX Rear panel transmitter 2 CH XX UPC W4 XX XX Rear panel 4 ch RX or TX or TR CWDM demux to 1 XX UPC W8 XX XX Rear panel 8 ch RX or TX or TR CWDM demux to 1 XX UPC W16 XX XX Rear panel 16 ch RX or TX or TR CWDM demux to 1 XX UPC X8 RX XX Rear panel 8 ch receiver CWDM demux with redundancy to 2 XX UPC X16 RX XX Rear panel 16ch rece...

Страница 35: ...alignment jitter 0 2 UI Optical Operating wavelength 1310 nm with optional CWDM 1271 1611 nm Link Margin up to 22dB 1310 nm transmitter output power 7 dBm CWDM transmitter output power 5 to 1 dBm Receiver Sensitivity 6 Gbs to 12 Gb s 11 dBm with color bars per Optoway SFP specs 270 Mb s to 3 Gb s 20 dBm pathological Optical source SFP or SFP Optical Launch 5 to 1 dBm also per Optoway Maximum data ...

Страница 36: ...er consumption TX 4 5 W per PCB RX 1 3 W per PCB Total 25 W Temperature Range 20 to 45 C 4 to 113 F Humidity Range 0 to 95 non condensing Compliance Laser Safety Class 1 Laser 21 CFR 1040 10 EMI RFI Complies with IEC EN 60825 1 Certifications RoHS ...

Страница 37: ...ain a local phone number for the support center nearest you please consult the Contact Us section of Grass Valley s website www grassvalley com An online form for e mail is also available on the website Corporate Head Office Grass Valley 3499 Douglas B Floreani St Laurent Quebec H4S 2C6 Canada Telephone 1 514 333 1772 Fax 1 514 333 9828 www grassvalley com ...

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