Networking question for a paper that I have to write.

[Guest]

RJ-45 refers to a type of adapter/cable/jack in LAN terminology.

 

My professor told us that this is strange because true RJ-45 does not apply to any form of LAN wiring or architecture.

 

He then offered somebody in the class the opportunity to write a paper on the "low down of RJ-45" "what REALLY is it?".

 

Well, I was the person who volunteered the paper. Can anybody help me get my feet wet here? I have no idea where to look... or even where to start... since RJ-45 is widely accepted as LAN terminology.

 

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---Beauty is in the eye of the beer holder.---

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Pentium II 450@504 4.5X112

128MB PC100 SDRAM

Diamond Viper V770 Ultra

Sound Blaster Live! Value

Seagate 13.6 Gig 7200RPM ATA/66

Western Digital 13.4 Gig 7200RPM ATA/66

Quantum 8.3 Gig

36X Acer CD Rom

Viewsonic PS790 19" Sweet as Heck Monitor

3Com NIC

Lexmark 5700 Printer

http://sandoval.dynip.com

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[Guest]

I guess I put this topic on the wrong place... I usually just click on applications when I come to this page... so I must have done that without thinking.

 

Sorry bout this!

 

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**********************************************

---Beauty is in the eye of the beer holder.---

**********************************************

Pentium II 450@504 4.5X112

128MB PC100 SDRAM

Diamond Viper V770 Ultra

Sound Blaster Live! Value

Seagate 13.6 Gig 7200RPM ATA/66

Western Digital 13.4 Gig 7200RPM ATA/66

Quantum 8.3 Gig

36X Acer CD Rom

Viewsonic PS790 19" Sweet as Heck Monitor

3Com NIC

Lexmark 5700 Printer

http://sandoval.dynip.com

**********************************************

[felix 0]

In the most simple terms, RJ45 refers to the connector/jack combination on the ends of a CAT5 UTP Cable.

 

The "plug" is the RJ45 male and the one on your NIC is the RJ45 female.

 

The fact that CAT5 UTP is often referred to as RJ45 is mainly because people get the two confused.

 

This is similar to the way people call coax BNC when it is actually 50ohm Coax with BNC connectors.

 

Hope this helps.

[Down8 0]

It's not much to add, but all of the phones [technically, they are $800 voice/data terminals, go figure ] on my campus [uSC in LA] connect with RJ-45, so it's not just for LANs, but also internal PBXs.

 

-bZj

[Guest]

Okay, so lemme get this straight.

 

RJ45 just refers to jacks and adapters rather than the entire wire? But people call the entire wire RJ45 for simplicity sake?

 

 

 

------------------

**********************************************

---Beauty is in the eye of the beer holder.---

**********************************************

Pentium II 450@504 4.5X112

128MB PC100 SDRAM

Diamond Viper V770 Ultra

Sound Blaster Live! Value

Seagate 13.6 Gig 7200RPM ATA/66

Western Digital 13.4 Gig 7200RPM ATA/66

Quantum 8.3 Gig

36X Acer CD Rom

Viewsonic PS790 19" Sweet as Heck Monitor

3Com NIC

Lexmark 5700 Printer

http://sandoval.dynip.com

**********************************************

[felix 0]

That's it. Just simplicity.

[clutch 1]

RJ-45 is a jack type. This jack is used with the standard CAT-5 UTP and some digital phone systems. I believe that some phone systems in Europe use the same jack. Most phones in the US use RJ-11 jacks.

 

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Regards,

 

clutch

[Bursar 0]

The phones in the UK are RJ-11 as well.

 

Our entire office building is filled with RJ-45 based wall ports.

 

We can then just patch in a port to connect a PC.

 

If we want to plug a phone into a port, we need to use an RJ-11 to RJ-45 convertor box.

[Ryo-Ohki 0]

RJ-11 Male ends will connect to RJ-45 Female ends with no problem, and will work fine if the setup is done correctly. I've done this all summer long, and it has worked perfectly.