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Optic Converter
How much picture quality is lost with digital cable TV?
Since cable companies will be DOWNGRADING the signals they get to analog, to accommodate people with older NTSC TV sets, meaning you must get a digital converter/high definition box to UPGRADE back to where we started from, approx. how much picture quality will be lost in this 360 degree downgrade/upgrade, as opposed to having a satellite beam PURE digital/high def. signals to your receiver (like the customers on fiber optic systems)? Also, can we possibly eliminate the digital/high definition converter from the cable company, or are you forced to get one from them? Thanx for any input!
It isn't a 360 degree downgrade and upgrade. They are sending the analog NTSC channel in addition to digital SD and HD versions of the channel.
What you receive with the HD cable box is mostly directly what the station is sending in HD. It might be compressed a bit, that's it. It is no different than FIOS or any other provider.
You might be able to tune some of the unencrypted digital channels directly. Encrypted channels require their box, or a Cablecard in a compatible TV or set-top box. Unfortunately it is up to the open market to provide Cablecard devices, and the industry mostly doesn't care to.
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NEW METTLER TOLEDO DUAL CHANNEL FIBER OPTIC CONVERTER |  |
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StarTech.com 1000MBITS RJ45 TO SC FIBER OPTIC MEDIA CONVERTER ET91000SC $161.83 StarTech.com 1000MBITS RJ45 TO SC FIBER OPTIC MEDIA CONVERTER ET91000SC |
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Adtran OCU 45 T3/E3/STS-1 Fiber Optic Converter $1767.99 1 x SC Duplex 1.70" Height x 6.70" Width x 9.10" Depth 10 Year 1200664L1 2 lb 2 x BNC 24.85 Mile 3 9/125 µm OCU 45 T3/E3/STS-1 Fiber Optic Converter OCU 45 User Manual The OCU 45 Optical Converter Unit provides a compact, easily deployed solution for transporting DS3, E3, or STS-1 services over point-to-point private fiber. It is ideal for campus applications and where fiber is used for inter-building risers. Wave Length: 1310nm Adtran DS-3/E-3/STS-1 Media Converter OCU 45 OCU 45 T3/E3/STS-1 Fiber Optic Converter Rack-mountable Wall-mountable www.adtran.com |
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media converter $684.99 Black Box - Media converter - fiber optic - ST multi-mode / RJ-48 - plug-in module - up to 18.6 miles - T-1/E-1 - 1310 nm - for Dynamic Fiber Conversion System |
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Hardened Media Converter Switch 100-240-VAC - media converter $263.99 Black Box Hardened Media Converter Switch 100-240-VAC - Media converter - 10Base-T fiber optic 100Base-TX - RJ-45 / ST multi-mode - DIN rail mountable - up to 1.2 miles |
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XBlue Just Convert-IT Bridging Media Converter - Media Converter. Each $196.86 Manufacturer: Transition Networks, Inc. Each. The "Just Convert-It" Bridging Media Converter is an inexpensive, no frills way to extend the distance between connections with different speeds or duplex using fiber optic cable, while maintaining the same qu |
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XBlue Just Convert-IT Bridging Media Converter - media converter. Each $433.47 Manufacturer: Transition Networks, Inc. Each. The "Just Convert-It" Bridging Media Converter is an inexpensive, no frills way to extend the distance between connections with different speeds or duplex using fiber optic cable, while maintaining the same qu |
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StarTech.com Fiber Media Converter $579.56 This Single Mode to Multimode Fiber Media Converter provides transparent conversion between single mode and multimode fiber networks, providing a cost-effective way to utilize two different types of fiber cabling. The SM to MM Fiber media converter supports a total fiber connection distance of up to 10 Km (6 miles). Designed to offer a durable and convenient fiber conversion solution, the Single Mode to Multimode Fiber Media Converter features an all-steel chassis, and can be wall-mounted for out-of-the-way installations. Manufacturer: StarTech.com Manufacturer Part Number: ET91000MMSM Manufacturer Website Address: www.startech.com Brand Name: StarTech.com Product Name: Fiber Media Converter Product Type: Media Converter Media & Performance: Fiber Optic Cable Standard: 9/125 ?m |
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Startech 1000 Mbps Gigabit Ethernet To Multi Mode Fiber Media Converter SC - Media Converter. Each $420.71 Manufacturer: Startech Computer Products. Each. The ET1000SM40LC LC Gigabit Ethernet Fiber Media Converter is a single-mode media converter that allows you to convert 1000Base-LX fiber optic signals into Gigabit Ethernet at distances up to 40km.Operating |
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Optic $29.99 Denise Duplock Optic - Giclee Print |
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Transition Networks SGETF1024-110 Media Converter $1156.99 1 x SC Duplex 1.24 Mile 1000Base-LX 62.5/125 µm Fiber 1000Base-T Category 5 STP/UTP 2 3.25" Width x 4.80" Depth Automatic Link Restoration Remote Fault Detect Transparent Link Pass Through Transition Network's Gigabit Ethernet media converter connects 1000Base-T shielded or unshielded twisted-pair copper cable to 1000Base-LX fiber optic cable. Lifetime Media Converter SGETF1024-110 SGETF1024-110 Media Converter SGETF1024-110-NA Transition Networks Transition Networks, Inc www.transition.com |
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Media converters universal 14 slots chassis for fibre optical media converters
Fibre Optic single mode vs multi mode compatibility?
Can I use single mode fibre media converters with a multi-mode fibre? I know I'm not supposed to, but could it still work since the cable is only 300m long? Will the signal loss be too much to let it work?
I have a 62.5/125um multi-mode cable running about 300m between two buildings.
My single modemedia convertors have a link loss budget of 16dB and use 1300nm wavelength.
I'd like to know how likely this is to work before I buy expensive patch cables.
Maybe.
In my example we had several building in a corporate campus, all connected with multi-mode fiber. Our original network was an ATM fiber backbone on Cisco Catalyst 5000 switches with multi-mode GBICs. After the company changed hands, this was replaced with a gigabit ethernet backbone and newer Cisco hardware. The network architect specified an odd-ball solution for two pairs of fiber connections between two buildings that were farthest apart (between 300 and 400 meters, I believe).
This wasn't a straight shot, either. Each end had one or two fiber patch panels, and there was a patch bay in one of the intermediate buildings between the far ends with multi-mode fiber jumpers in the bay.
--Single-mode GBICs on the Cisco Catalyst 6500 and 4000 switches at either end.
--Special 'conditioning' fiber patch cable that allowed the single-mode GBIC to connect to a multimode fiber. These patch cords were about $200/each.
And get the right connectors. In our case, the purchased conditioning cables were SC-to-SC, but our existing fiber plant had ST connectors. Each end had additional SC-to-ST adapters, which added loss and made the connection drop whenever someone monkeyed with the pile of fiber jumpers.
I do not have any of the technical info anymore to remember the link loss budget end-to-end in our cable plant. I no longer support that infrastructure, and most of the buildings are now occupied by Nike, who demolished the existing infrastructure (including the Verizon local fiber ring that went through the ceiling in one of the buildings).
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