Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

CAT5 Signal Boost to Office 80M Away from Main Office

Posted on 2014-02-07
10
Medium Priority
?
424 Views
Last Modified: 2014-02-21
Hi,

I have a client that requires internet access in an office sitting approximately 80m from their main office building. I've run an unshielded CAT5 cable and connected it up to a laptop in the this office. The green and orange lights on the laptop NIC are lighting and I see activity, but the NIC is not picking up an IP address.

I'm guessing that the signal has either attenuated too much, or I need to make a PoE connect between PoE devices across to the office, but I've never run a CAT5 cable this far before.

Does anyone have experience of running network cabling outdoors, and if so do you have any advice?
0
Comment
Question by:cpadm
  • 2
  • 2
  • 2
  • +4
10 Comments
 
LVL 17

Expert Comment

by:Sikhumbuzo Ntsada
ID: 39841504
We use Cat 6 to traverse 100 meters just fine.

If you can get one, try it.
0
 
LVL 1

Author Comment

by:cpadm
ID: 39841604
Did you plug in the CAT6 cable directly from a switch/router (standard port - as in non-PoE) to the remote building?
0
 
LVL 17

Expert Comment

by:Sikhumbuzo Ntsada
ID: 39841616
From 3Com Gigabit switch 2948 to a same model.

It serves as a backup for our fibre line now, but when started we were running on the cable.
0
What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

 
LVL 13

Expert Comment

by:ktaczala
ID: 39841968
Quick fix:

Throw another switch half-way in between the run.
0
 
LVL 1

Author Comment

by:cpadm
ID: 39842051
@ktaczala: Unfortunately, that switch would have to be solar-powered and waterproof! :)

The cable is travelling outdoors to reach the other building.

I thought about setting up directional antennas, or WiFi boosters, but I know even less about these technologies and I'm not sure how good they would work over a distance of 80 meters through concrete walls and with no clear line of sight (trees). Budget is also a factor as this is a small company.
0
 
LVL 12

Expert Comment

by:Infamus
ID: 39842320
Try CAT6 as Santasi suggested or order a DSL/Cable for that office and use VPN if LAN access is needed.
0
 
LVL 47

Expert Comment

by:Craig Beck
ID: 39842625
100m is fine for a Cat5, Cat5E or Cat6 run.

Are you sure that the port on the switch is configured properly?  Ie, in the correct VLAN, etc?  Test this by just plugging a laptop into the port on the switch directly.
0
 
LVL 44

Accepted Solution

by:
Darr247 earned 900 total points
ID: 39843662
I would not use cat5... use at least cat5e.

If you're running it outdoors, its jacket should be rated for UV exposure... i.e. CMX.

e.g. http://cables4sure.com/500ft-cat5e-outdoor-direct-burial-gell-type-bulk-cable.html

Keep the length of the pull to 90m if possible. That leaves room for up to 5m of patch cable on each end to reach from the outlets to the switches while keeping the total length @/under the 100m spec.
0
 
LVL 57

Assisted Solution

by:giltjr
giltjr earned 600 total points
ID: 39844206
I would double check the total length.  If the buildings are 80m apart that only leaves 20m for any patch cables (as Darr247 pointed out), and inside the building distances to get to where the switches are.

Is this cable hanging in the air, or did you bury it?  As Darr247 also pointed out, you can't use the same wiring for outside runs as you do for inside runs.  Well, maybe if it is totally run within conduit, which getting to the conduit could also add length to the cable.

You may want to see if you know somebody with a cable tester that can measure the total length of the cable to verify that it is at or under 100m.
0
 
LVL 44

Expert Comment

by:Darr247
ID: 39844543
Some cables have measurements printed right on the jacket, too...
e.g.Belden Cat5e Cable with Metering Marks (click for larger)
0

Featured Post

Free Tool: ZipGrep

ZipGrep is a utility that can list and search zip (.war, .ear, .jar, etc) archives for text patterns, without the need to extract the archive's contents.

One of a set of tools we're offering as a way to say thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This program is used to assist in finding and resolving common problems with wireless connections.
In this article, the configuration steps in Zabbix to monitor devices via SNMP will be discussed with some real examples on Cisco Router/Switch, Catalyst Switch, NAS Synology device.
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
If you're a developer or IT admin, you’re probably tasked with managing multiple websites, servers, applications, and levels of security on a daily basis. While this can be extremely time consuming, it can also be frustrating when systems aren't wor…

824 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question