Questions tagged [cabling]
For questions about network cable installations used in a physical building or as used in a computer network topology. This tag is suitable when your question is about network cable installations, that are used in buildings to distribution frames and data centers or long distance cabling that is buried into the ground.
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Practical importance of bonding and grounding Ethernet cables in IP camera installations
this is my first post in this community. I’m looking forward to learning from your expertise.
I’ve noticed that many IP camera installers skip proper bonding and grounding when connecting cameras to ...
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Need Advice - 140m Ethernet Run Between Buildings
I'm facing a technical challenge and could really use your expertise. I need to establish a wired network connection between two points 140 meters apart - well beyond the standard 100m limit for ...
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Cat cable pairs' twist rate and how that affects crosstalk
I understand that more twists result is a cleaner signal because the crosstalk is reduced, but how is the rate of twist affecting the physical properties of the wire pair themselves to reduce that ...
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Cat5 UTP AWG24 vs. Cat6a U/FTP AWG30 - better or worse?
I'm wondering if replacing a Cat5 UTP AWG24 from 2005 with a current Cat6a U/FTP AWG30 is an improvement in terms of signal quality or actually worse given the much thinner AWG?
It currently runs ...
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UTP 6A cable with FTP 6A connector
Can I use cat. 6A FTP connector with cat. 6A UTP cable? I've already bought UTP cable but i cannot find 6A UTP connectors, only FTP. Will it work or will it generate some interferences?
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same rack connection: better RJ45 or SFP?
For a connection between two devices on the same rack:
Is there any notable difference or advantage between using 1Gb SFPs and using Gb Ethernet ports? (making a bonding/etherchannel).
I know for ...
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How is it technically possible for a straight-through cable to work?
I understand why two computers need a crossover cable between themselves to communicate. Without it, the transmit and receive wires are the same on each end, making any communication impossible. What ...
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Do I need direct-burial rated CAT5e for exterior wall contact?
I need to make some CAT5e cable runs (50-100') along the top edge of an exterior brick fence. Even though it's not buried, it'll probably be in frequent long contact with stuff that hangs out in the ...
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Is the RJ45 boot part of the RJ45 design specification?
Like tabs vs spaces, or Pokémon vs Digimon, the RJ45 boot is arguably a cause of controversy for many. Is it, however, in the official design specification for the RJ45 connector, or is it a non-...
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Max cable length when using 10GBASE-T SFP+ transceiver
I find it typically said that the maximum Cat6a cable distance is 100m for 10GBASE-T.
But often for a 10GBASE-T SFP+ transceiver, the product is said to support a maximum of 30m. For example: Cisco ...
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Are LC-UPC connectors compatible with LC-PC?
I’ve come across various articles online that explain the differences between APC and UPC, where the former has an angled polish and the latter is a straight “cut”.
Some of them explain that UPC and ...
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Fiber minimum bend radius for 12-fiber breakout cable
Minimum fiber bend radius is generally 10 x outer diameter of cable, unless specified differently by the manufacturer.
For a tight-buffered indoor fiber breakout cable with 8 or 12 fiber strands, does ...
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Certified 0,15m CAT6a cable - what to expect?
We are thinking of patching our new network rack using 0,15m cables due to costs and cable management requirements. There will be around 400-500 connections using this cable length and we will be ...
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Pins #6 and #8 of my CAT6 ethernet cable are broken. Should I replace the entire cable or is it usable?
I wired up a ~40m long CAT6 cable following T568B pinout.
According to my tester, pins #6 and #8 are not functional.
I have re-wired both ends several times to make sure it's not my poor crimping; ...
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Creating a distributed ethernet using a single mode fiber ring
Can I create a distributed ethernet using just 1 x core of a single mode fiber ring ?
Update (Sep 2022):
The following is what we've implemented and works great. It's one of the options discussed in ...
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