Connecting 2 ethernet cables using coupler

May 16, 2011 at 21:24:12
Specs: N/A
I had one straight through cable connecting one switch and a pc in my office. The cable is approx 90 metres in length. The cable has been cut in between by rat. Now can I join those 2 cables by a coupler, if so will it increase latency, what type of crimping is required, straight through or cross cables. I think 2 cross cables connected by a coupler becomes straight. Please help,

See More: Connecting 2 ethernet cables using coupler

Report •

#1
May 16, 2011 at 23:17:34
Installing new heads on the cables is tricky, even if you're done it before. The tools are cheap @ Home Depot. Use straight through, not cross over.

http://www.pcmobilehelp.com/support...

Wiring ^^

How do you know when a politician is lying? His mouth is moving.


Report •

#2
May 17, 2011 at 06:14:01
I would replace the cable and forget about the coupler. Couplers are normally only used for testing purposed.

A coupler will increase noise leading to delays and intermittent communications. As the cable is already close to the maximum allowed, a coupler could just send it over the edge.

Stuart


Report •

#3
May 17, 2011 at 06:58:28
With a 90 metre cable (keep in mind the maximum is 100 m) I'd recommend pulling a replacement if possible as compared to using a coupler. At 90 m, you're already experiencing some attenuation. Personally, I try to avoid cables in excess of 85 m because I've found when you start getting to 85 m in length, you can start experiencing problems due to attenuation.

While a coupler shouldn't cause more, it certainly won't help the situation any. Just FYI, there's nothing wrong with using a coupler. They're basically just a very short piece of straight through cable with a female RJ45 port at each end. I've made them out of a short piece of cable and two keystone jacks when I didn't have a store-bought one and needed to extend and existing cable.

If you must, then give it a try but don't be too surprised if you experience some connectivity issues.

Definintely do not try making two crossovers out of the two pieces of cable.

It matters not how straight the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.

***William Henley***


Report •

Related Solutions

#4
May 17, 2011 at 08:18:12
Guap, Curt R , Stuart Thanks all for your suggestions,I had analysed the site more closely and now came to the conclusion that even a single crimping wont help me, since the rat cut is little bit more and if I crimp it cant be connected.
I have reported replacement of the cable as the only solution (Which is going to be a hell of a task ). But now as the case is over I would like to clarify few more doubts. Can I put an intermediate cable say 1 metre in between and connect it with rat cut cable. It will lead to 2 couplers, surely I expect not a perfect solution. Please explain.
Also while connecting 2 straight cables through coupler its not working as a straight cable., but I had cross crimped then it works.
Thanks in advance

Report •

#5
May 17, 2011 at 09:31:42
As Stuart said, forget about it. Don't waste your time. Replace the cable. It can't take more than a day. In the meantime, call the exterminator.

How do you know when a politician is lying? His mouth is moving.


Report •

Ask Question