Q
Problem solve Get help with specific problems with your technologies, process and projects.

Is it possible to connect a switch to a hub with a distance of 100 meters or more?

I am expanding my network to about a distance of 250 meters. I was able to connect a computer to a hub 250 meters...

away using an utp cable. But when I replaced the computer with a 10/100 Mbps switch where I intend to connect two more computers, I found out that the computer that I have connected without the switch was unable to access the network or the Internet. I tried using a crossover cable but it could not connect. When I connected a hub instead of a switch I was able to connect. Isn't it possible to connect a switch to a hub with a distance of 100 meters or more? I tried reducing the utp cable to 100 meters, still it can't connect. Do you have some ways of extending my connection to about 250 or 500 meters without using a hub? I guess there are no more repeaters available these days. I'm quite stunned to hear that you managed to get a workstation talking to the network through a 250 meter UTP cable! The specifications these cables have, and the rules by which we need to play define a maximum of 100 meters for any UTP Cat5 cable, assuming it's for a 10/100 Mbps network. If you tried to run gigabit, then this is reduced to 25 meters!

I'm also puzzled over the fact that you connected the switch at the other end when the cable was around 100 meters and that didn't work. There are a few possibilities for this:

1. Dusty or corroded contacts on either end;
2. The cable was picking up EMI from some source near by (was it close to power cables?)
3. There must be something odd about the switch you are using or it's extremely sensitive to the cable's length.

If there is another switch around, you could perhaps use that, but it would be more of a patch job, rather than dealing with the problem correctly.

The best possible solution for you would be to use fiber optic cable instead of UTP. There are some really good products out in the market that will convert UTP to fiber optic and then back to UTP. I cannot remember the vendor's name, but they are widely used here in Europe.

Here's a simple diagram to give you an idea how they are placed between a workstation and a switch:

```Switch===utp===|converter|-----fiber----|converter|====utp===wrkstn
```

A setup like the following would be most probably your best solution, with requiring extra switches or hubs.

This was last published in October 2003

Content

Find more PRO+ content and other member only offers, here.

Have a question for an expert?

Get answers from a TechTarget expert on whatever's puzzling you.

You will be able to add details on the next page.

Start the conversation

Send me notifications when other members comment.

SearchSDN

• NFV disaggregates firewall appliance to increase scalability

A traditional firewall appliance can incorporate many services, but NFV can virtualize firewalls to offer individual services ...

• Cisco, Hyundai to add software-defined platform to vehicles

Cisco and Hyundai will release jointly developed software-defined vehicles in 2019. These connected cars will boast a Cisco-built...

• Zayo SD-WAN available as a managed or on-premises product

Zayo Group has launched an SD-WAN product. The Zayo SD-WAN is available as an on-premises or managed product. Zayo is a bandwidth...

SearchEnterpriseWAN

• How to calculate network bandwidth requirements

Figuring out how to calculate bandwidth requirements is vital to ensuring your network runs smoothly, and it's best to get the ...

• How types of noise in data communication systems affect the network

Learn about the different types of noise in data communication -- including thermal, intermodulation, cross-talk, impulse and ...

• The best VPNs for enterprise use

This slideshow highlights the best VPNs used in enterprise wide-area networks (WANs) and offers principles for designing and ...

SearchUnifiedCommunications

• Emerging technologies to fuel collaboration industry growth

Business communications is getting more contextual and intelligent, thanks to emerging technologies, such as AI and APIs. UCC ...

• How to navigate the enterprise collaboration market

When evaluating enterprise collaboration services, first look inward at your company needs. Some key collaboration criteria ...

• Businesses slow to embrace products like Samsung Flip board

Samsung hopes to heat up the tepid digital whiteboard market, but the new Samsung Flip board will face tough competition from ...

SearchMobileComputing

• A roundup of the leading EMM providers in today's market

Just as identifying the need for EMM is important, so is selecting the right vendor. Here's a rundown of leading EMM vendors and ...

• Compare the main mobile app development languages

Developing an app is all about visualizing what the users need and what they'll see in the UI. Get visual with this infographic ...

• A handy mobile app testing checklist for developers

Application testing is a necessity in the era of enterprise mobility. Define the right testing criteria and adopt the proper ...

SearchDataCenter

• Three requirements for a hybrid cloud computing deployment

As the hybrid cloud computing approach gains steam, organizations will need to pay close attention to cross-cloud connectivity ...

• Five debunked myths about SSD issues

Solid-state drives are mature now, and the technology has eclipsed hard disk drives with superior performance, manageability and ...

• Future data center trends hinge on the edge, cloud and staffing

Edge computing, colocation, cloud and IT staffing issues lead the way as industry analysts make their predictions for the future ...

SearchITChannel

• Primary and secondary storage combos attract channel partners

Nontraditional storage vendors, such as ClearSky Data and Reduxio, are attracting resellers and managed service providers with ...

• Demand for cloud-enabling infrastructure soared in 2017, says IDC

IDC's latest cloud IT infrastructure market tracker shows the demand for public and private cloud-enabling servers, storage and ...

• NEC Corporation of America extends cloud alliance

A cloud enablement alliance between NEC Corporation of America and Magna5 will bring together NEC's infrastructure-as-a-service ...

Close