Crystal Vision Vision FTX-VF User manual

FTX-VF
Dual channel 3Gb/s, HD or SD to
fibre optic transmitter
Crystal Vision Ltd., Lion Technology Park, Station Road East, Whittlesford, Cambridge, CB22 4WL, England.
Tel: [phone] Fax: [phone] [e-mail] www.crystalvision.tv

Crystal Vision FTX-VF User Manual
Contents
1Introduction 3
2Hardware installation 5
2.1 Board Configuration 5
Link Configuration 5
Inserting cards 5
3Rear modules and signal I/O 7
3.1 Rear module connections with VR14 7
4Status monitoring 8
4.1 Controlling cards via VisionWeb 8
4.2 Menu Structure 9
4.3 Control Descriptions 9
Video Input 10
Output Warnings 10
Control 11
5Troubleshooting 12
5.1 Card edge monitoring 12
5.2 Basic fault finding guide 12
6Specification 14
7Appendix 16
7.1 Fibre distance calculations guide 16
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Crystal Vision FTX-VF User Manual
Warning
Note: Caution must be taken when removing optical cabling from the rear of the frame
when an optical signal is present due to the possible damaging nature of high
intensity light to the naked eye.
Although Crystal Vision optical products contain Class 1 devices that have been designed to
be safe under all circumstances, you are advised not to look directly into any vacant optical
outlet.
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Crystal Vision Introduction
1 Introduction
The FTX-VF is a dual channel, reclocking, 3G/HD/SD video to fibre transmitter that can be
used with single-mode or multi-mode fibres and meets the SMPTE 297-2006 short-haul
specification. Distances in excess of 10km are possible with single-mode fibre depending on
cable quality and number of connectors and splices (see Fibre distance calculations guide).
Optional CWDM lasers are available which, with an external combiner, enables the
transmission of two video signals down a single fibre for up to 50km.
FTX-VF is a space-saving 96mm x 325mm module which fits in the standard Vision frames
from Crystal Vision, with the inputs and outputs accessed by using the VR14 rear module.
Status monitoring and control is by the Vision frame active front panel, remote VisionPanel
control panel, SNMP or VisionWeb PC software.
In addition to the fibre output, FTX-VF provides two reclocked loop-through video outputs per
channel.
FTX-VF provides remote monitoring of video input presence and warnings of low laser output
(failure) and high bias current (imminent failure). The laser output automatically turns off if the
input video is removed and can be remotely turned on and off as required.
FTX-VF block diagram showing two independent optical outputs
The rear connector details may be found in the section Rear modules and signal I/O.
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Crystal Vision Introduction
The main features are as follows:
Dual channel, video input to optical fibre output operation
Class 1 FDA and IEC60825-1 Laser Safety compliant
Single or multi-mode fibre operation – meets SMPTE 297-2006 short-haul
specification
Optional coarse wavelength division multiplexing (CWDM) lasers available with a
choice of ten different wavelength pairs
270Mb/s to 2.97Gb/s serial digital compliant to SMPTE 259M, SMPTE 292M and
SMPTE 424M
Following video standards supported: 720p 50/59.94/60Hz, 1080p 50/59.94Hz, 1080i
50/59.94/60Hz, 1080p 23.98/24/25/29.97/30/50/59.94/60Hz, 1080PsF
23.98/24/25/29.97/30Hz, 2048x1080p 23.98/24/25/29.97/30Hz*, 2048x1080PsF
23.98/24/25/29.97/30Hz* (*= YUV 4:2:2 10 bit)
Two equalised and reclocked input loop-through outputs per channel
Capable of achieving distances in excess of 10km with single-mode fibre, depending
on cable quality and number of connectors and splices
Remote warning indications of laser level fault (actual failure) and laser bias fault
(imminent failure)
DVB-ASI compatible, all outputs positive polarity
Up to 20 FTX-VF cards in a Vision 3 3U frame
Less than 100ns delay
Remote monitoring and control via VisionPanel, VisionWeb control system, SNMP
and the frame active panel
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Crystal Vision Hardware installation
2 Hardware installation
2.1 Board Configuration
FTX-VF card
Link Configuration
The FTX-VF has no user-selectable links. Any links or controls should remain in their factory
set positions.
Inserting cards
Cards can be plugged in and out of powered Vision frames without damage. Although no
electrical damage should occur if an FTX-VF is plugged into the incorrect frame slot, the
optical connectors may be damaged.
See Vision frame User Manual for the correct procedure for installing cards and rear modules.
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Crystal Vision Hardware installation
Due to its fragile nature fibre optic equipment must be handled with care. Sharp blows or
snagging the fibre pigtails will fracture the internal glass filament and destroy its light carrying
ability. A degraded performance will also result if dust caps are not replaced whenever the
transmitter card or rear modules are de-mounted for any reason and a build-up of dust and
dirt film on the connector ferrules is allowed to occur. It is strongly recommended that the
supplied dust caps are replaced whenever the transmitter card or rear modules are de-
mounted for any reason.
FTX-VF connectors with the dust caps fitted
The dust caps must be removed before fitting the FTX-VF into a frame.
The VR14 rear module is fitted with dust caps on both sides of the optical connector. The pair
of dust caps that will be internal to the frame must be removed before the rear module is
fitted. The external pair can then be removed when the fibre tails are connected. It is also
recommended that dust caps should be re-fitted if the fibre tails are to be removed for any
length of time. Should the FTX-VF be removed for any length of time it is recommended that
the rear module should also be removed and stored with the dust caps fitted.
VR14 rear module
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Crystal Vision Rear modules and signal I/O
3 Rear modules and signal I/O
The FTX-VF fibre transmitter fits into all Vision rack frames from Crystal Vision and can be
plugged in and removed while the frame is powered without damage.
Vision frames all have a hinged front panel that gives access to the PSUs and all cards. The
universal frame wiring system allows any of the interface range of cards to be fitted in any
position with the use of removable rear modules.
3.1 Rear module connections with VR14
The VR14 single-slot rear module allows up to 20
FTX-VF cards to fit into a Vision 3 frame.
BNC connectors provide two 3G/HD/SD video
inputs both with two reclocked loop-through
outputs. A dual LC/SFP fibre connector provides
the optical output for both channels.
VR14
SDI video
input 1
SDI video
input 2
Optical
output 1
Optical
output 2
Input 1
loop
through-
outputs
Input 2
loop
through-
outputs
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Crystal Vision Status monitoring
4 Status monitoring
FTX-VF status can be accessed most easily by VisionWeb remote control PC software but
also by VisionPanel, the Vision frame’s front panel and SNMP. The following screen grabs
are from the VisionWeb GUI and are used to identify the various available status indications.
The menu tree for VisionWeb, front panel and VisionPanel operation is identical although the
appearance and labelling of some controls may vary according to the available space. See
the Vision frame and VisionPanel’s User Manuals for more details.
4.1 Controlling cards via VisionWeb
Crystal Vision cards use an XML file to create a control database that is used by the Vision
frame front panel controller, VisionPanel and VisionWeb software. VisionWeb software offers
a full range of controls with slider controls etc.
Accessing the Vision frame homepage with a PC browser via the Ethernet connector of a
frame will display a list of the cards fitted. (See ‘Vision’ frame User Manual for more details.)
Typical Vision 3 frame homepage
The example above shows a FTX-VF card fitted in slot 1 and other Vision cards in slots 2, 3,
5 and 7. Clicking on the FTX-VF card will bring up the card’s Status page, for example:
FTX-VF Status Page
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Crystal Vision Status monitoring
4.2 Menu Structure
Operators of a Vision frame active front panel or VisionPanel should use the following tree to
access the FTX-VF controls:
Status
Video Input
Channel 1
Present
Format
Channel 2
Present
Output
Format
Warnings
Level
Channel 1
Channel 2
Bias
Channel 1
Control
Channel 2
Output
Enable
Channel 1
Channel 2
Card Defaults
Default
Users of VisionWeb need only select the tabs shown above in red to access the pages
containing the set of controls.
4.3 Control Descriptions
The description of controls used in this manual is based on VisionWeb GUI screen grabs.
VisionWeb monitoring and control pages are accessed by tabs at the bottom of the page
which, when selected, offer controls such as LEDs, check boxes, buttons, sliders and labels.
The description of the monitoring and control pages is in the order shown in the menu tree i.e.
VIDEO INPUT, OUTPUT WARNINGS, CONTROL:
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