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nightdesigns
Gone missing, back soon
Premium
join:2002-05-31
AZ
Reviews:
·T-Mobile US

Video Over Fiber

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Audio Tx/Rx
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Closeup of Audio
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Video in Rack
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Something a little different, but related to Broadband equipment. I work at a TV station and this is some video over fiber equipment that we use.

We have a remote location with 6 Remotely controlled HD cameras. This is the fiber equipment that handles video, audio and camera control (RS-232). All equipment is made by Telecast and runs via Single Mode Fiber. Video runs on one pair of SM and Audio/Control runs on a second pair of SM. Locations are about 2 miles apart. Equipment cost is about $40,000, which is considerably less than building a second control room. Audio/Video delay is less than 1ms!

Video:
8 Channels of video in one direction and 4 in the other. To handle the 8 channels down 1 fiber requires some multi-plexing. The equipment uses 8 different wavelengths (1270, 1290, 1310, 1330, 1350, 1370, 1411 and 1431nm)...essentially 8 different signals down 1 fiber. The revise 4 channels uses 4 of those wavelengths on the other fiber. Each channel is HD-SDI (1080i) 1.485 Gbit/s. There is an option to run 16 channels of HD-SDI video in both directions (32 channels total) on a single fiber (not pair, single). Many options are available, it just comes down to price. If you really want to, you can jam quite a bit of data down 1 fiber. Audio can also be sent over HD-SDI, but would have required several converters. Easier to install a separate audio over fiber system.

Video/Control:
Much more basic than the video system, only requires 1 wavelength. We have 4 channels of audio in each direction (2 room audio, 1 intercom, 1 spare), RS-232 for Remote Camera control, Relays for some simple A/B equipment switches, and an analog video feed.

Audio and rooms system controls are handled over an existing IP network (Audio is handled by BiAmp, and room control is handled by AMX)

Enjoy.
--
This Space for Rent...


DaMaGeINC
The Lan Man
Premium
join:2002-06-08
Greenville, SC
kudos:2

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Cool. Ive worked with this type of equipment before at FOX news. Good stuff!!
--
Hating ignorance since 1984.

sk1939

join:2010-10-23
france
kudos:6

reply to nightdesigns
We use something like the first two boxes for digital signage and CCTV feeds, except they're just over CAT6 instead of fiber.


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