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Chat Area => General Discussion Area => Topic started by: pauls on 29 January 2014, 21:29:09

Title: ethernet splitter
Post by: pauls on 29 January 2014, 21:29:09
Could somebody recomend a 1 in 2 out splitter. I have tried a couple of the cheep plastic ones and no good. so i dont want to waste anymore money.
Title: Re: ethernet splitter
Post by: Marks DTM Calib on 29 January 2014, 21:32:42
You can't simply split ethernet
Title: Re: ethernet splitter
Post by: Andy H on 29 January 2014, 21:38:35
This will do what you asked - problem is that your description sounds more like an adsl filter.(http://img.misco.eu/resources/images/products/106/NGR/FS/FS105UK//FS105UK_500x500.jpg)
Title: Re: ethernet splitter
Post by: pauls on 29 January 2014, 21:50:49
Sorry not enough details..Due to my wifi and my laptop being crap i have ran a ethernet cable from my main computer into my man cave.I wanted it to run my laptop and my ps3. This will only be one at a time. but rather than having to keep unplugging it and swapping it over i thought i would get a splitter. They is loads on gaybay .
Title: Re: ethernet splitter
Post by: Andy H on 29 January 2014, 22:48:04
OK

My previous advice still stands. £20 for a Netgear FS105 (pictured).

As Marks DTM Calib pointed out the Ethernet standard doesn't support passive splitters so either keep plugging one in at a time or use a network hub.
Title: Re: ethernet splitter
Post by: Ever Ready on 29 January 2014, 23:14:40
This will do what you asked - problem is that your description sounds more like an adsl filter.(http://img.misco.eu/resources/images/products/106/NGR/FS/FS105UK//FS105UK_500x500.jpg)

 Below is a link to the same model as Andy H has only now it does Gigabit as well .  Less than £20 delivered

http://www.ebay.co.uk/itm/NETGEAR-ProSafe-GS105-5-Port-10-100-1000Mbps-Desktop-Ethernet-Gigabit-Switch-/360844573047?pt=UK_Computing_NetworkSwitches_RL&hash=item5404033977
Title: Re: ethernet splitter
Post by: dbug on 29 January 2014, 23:20:25
Yep splitters just no good - you need an ethenet switch as others have suggested ;)
Title: Re: ethernet splitter
Post by: I_want_an_Omega on 30 January 2014, 06:50:32
To be clear, this and other suitable devices will be powered - you cant do it any other way .........
Title: Re: ethernet splitter
Post by: Rods2 on 30 January 2014, 13:51:18
Cat5 cable has 8 wires which give 2 network connections. Only one is normally used, so yes you can use ethernet splitters to go from 2 to 1 and back to 1 to 2, but using all of the single cable wires.

What you need is a pair of these.

http://www.cmsplc.com/structured-wiring/base-tsplitters.html (http://www.cmsplc.com/structured-wiring/base-tsplitters.html)

or these from ebay

http://www.ebay.co.uk/itm/2X-RJ45-Splitter-1to2-Way-LAN-Network-Ethernet-Adapter-/370457128839?pt=UK_Computing_Other_Computing_Networking&hash=item5640f72f87 (http://www.ebay.co.uk/itm/2X-RJ45-Splitter-1to2-Way-LAN-Network-Ethernet-Adapter-/370457128839?pt=UK_Computing_Other_Computing_Networking&hash=item5640f72f87)
Title: Re: ethernet splitter
Post by: Kevin Wood on 30 January 2014, 13:57:10
Cat5 cable has 8 wires which give 2 network connections. Only one is normally used, so yes you can use ethernet splitters to go from 2 to 1 and back to 1 to 2, but using all of the single cable wires.

What you need is a pair of these.

http://www.cmsplc.com/structured-wiring/base-tsplitters.html (http://www.cmsplc.com/structured-wiring/base-tsplitters.html)

Yes, in fact, you don't even need those if you just wire two sockets on the faceplate at either end of the link, using two pairs for each, and remembering the colour scheme you use, of course.  ;)
Title: Re: ethernet splitter
Post by: I_want_an_Omega on 30 January 2014, 13:58:39
Cat5 cable has 8 wires which give 2 network connections. Only one is normally used, so yes you can use ethernet splitters to go from 2 to 1 and back to 1 to 2, but using all of the single cable wires.

What you need is a pair of these.

http://www.cmsplc.com/structured-wiring/base-tsplitters.html (http://www.cmsplc.com/structured-wiring/base-tsplitters.html)

or these from ebay

http://www.ebay.co.uk/itm/2X-RJ45-Splitter-1to2-Way-LAN-Network-Ethernet-Adapter-/370457128839?pt=UK_Computing_Other_Computing_Networking&hash=item5640f72f87 (http://www.ebay.co.uk/itm/2X-RJ45-Splitter-1to2-Way-LAN-Network-Ethernet-Adapter-/370457128839?pt=UK_Computing_Other_Computing_Networking&hash=item5640f72f87)

That will work if all 4 pairs are correctly wired all the way through, will require 2 ports on a device somewhere though - so may well serve the purpose properly.
Title: Re: ethernet splitter
Post by: Kevin Wood on 30 January 2014, 14:15:41
It's also worth mentioning that if the devices at either end support gigabit ethernet they will require all 4 pairs to be connected and may even fail to negotiate down to 100mbit in that scenario.
Title: Re: ethernet splitter
Post by: Marks DTM Calib on 30 January 2014, 14:24:09
Good look on the 'unused pins' bit for 100baseT, there is a LOT of things that happen to those pins including them being grounded in the terminating equipment.

And when you then think POE it gets worse!
Title: Re: ethernet splitter
Post by: Marks DTM Calib on 30 January 2014, 14:47:37
I should add that if using the cheapo splitter types, you need one at each end of the cable (they are a way of getting two 100 base T ports over a single cable), this will would requrie two ports in your swicth/router at the head end
Title: Re: ethernet splitter
Post by: zirk on 30 January 2014, 16:30:09
I should add that if using the cheapo splitter types, you need one at each end of the cable (they are a way of getting two 100 base T ports over a single cable), this will would requrie two ports in your swicth/router at the head end

As Mark says need one at each end, uses the the normally 2 Voice pairs for the second Data run, or you can make up your own with some spare Data Outlets. only good for up to 100 Mps T Base though.  :y

(http://www.cmsplc.com/media/wysiwyg/Static_Page_Images/Product_Page_Static_images/AS5E_2X_Diagram.jpg)
Title: Re: ethernet splitter
Post by: TheBoy on 30 January 2014, 20:07:09
Either run another cable, or use a switch as suggested near the top.

Although 100base-TX only uses 2 pairs, it uses the ones with the best resilience to crosstalk (strip a cat5e cable, and you'll see different twist rates).

GigE uses all 4 pairs, so rules out any silly buggers.
Title: Re: ethernet splitter
Post by: pauls on 31 January 2014, 10:19:58
Thanks chaps  :y All very confusing so I think I will just run another cable :y