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Questions tagged [rj45]

26 questions
26
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2 answers

How does the RJ45 crimping tool work?

There are plenty of videos and descriptions about how to use an RJ45 crimping tool. I've seen a few, and I have even tested a crimping tool, but I still don't understand how it does what it does. What exactly happens to the eight wires inside the…
Arseni Mourzenko
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1 answer

Do I really need a DB9-RJ45 adapter to connect to a Cisco router console, and if so, why?

I have an Enterprise grade Cisco router and an HP laptop. I would like to connect to the router on the console port to conduct out-of-band management. The console port on the router uses an RJ45 terminal. I have one on my laptop as well. My…
Hack-R
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4
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1 answer

What will happen if a PoE powered patch cable is plugged into a normal RJ-45 plug?

I have a couple PoE powered keystone jacks sticking out of a wall in a computer lab. We're going to remove /block the excess ones eventually, but for now I'm worried about somebody plugging a laptop into the jacks -- not because of them being…
Libbux
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4
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4 answers

TIA 568A vs. B Wiring for Long Ethernet Run

I have a long Ethernet run (about 280 ft/85 m) that goes through a conduit between two buildings. On each end, I have an APC Ethernet surge protector that is grounded to the main ground for each building. While I had some trouble getting it to work…
Timothy R. Butler
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4
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4 answers

Converting an Ethernet Coupler to a Crossover Adapter

I want to add a crossover to my network toolbox. Aside from an actual an actual crossover cable, I like the idea of an adapter (figure 1). There are crossover adapters available online, but I’m wondering about making one out of an Ethernet coupler…
Synetech
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2
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0 answers

How to convert RJ45 wiring to RJ25

I have a RJ45 cable wiring. I need to use it to connect my printer to network. But the network socket that was available in my printer is RJ25 socket. I thought that i can wired cross cable which is used an RJ45 on one side, and RJ25 on the other…
user2294125
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3 answers

Robust RJ45 for frequent connections/disconnections

I am looking for robust RJ45 cables/connectors in an environment where people come and go and plug in and out. After a month of usage, the connectors are worn out and fall out and you need to replace the cable. I want to not do it so often - what…
Konrads
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3 answers

I want extend CAT5 cable, more than 100m

I have a track like 130 meters. CAT5 cable limit is 100m. Is it possible to cut it in half and get a switch in the middle of the track? Will it work?
maas
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Can Cat6A connector fit to normal gigabit network switch?

Cat 6A cable is thicker than Cat6 cable. For a Cat6 cable and connector, we can plug into any network switch that has RJ45 connector even a 100Mbps network switch. Just wonder if I use Cat6A cable and Cat6A connector, can I plug it into the normal…
Chau Chee Yang
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2 answers

Cisco console, is possible to have DB9 split out to multiple RJ45's?

Cisco Serial Console cables are simply DB9 to RJ45. Of course many people have now come to use a variety of DB9 to USB adapters to get around many machines not having serial ports. But I'm more concerned with the RJ45 side and splitting that…
TryTryAgain
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Ethernet wiring of pairs for a 100mbit configuration

In Ethernet wiring, for a 100mbit configuration, if Pairs C & D are connected at one end instead of pairs A & B, would it function? Computer: Eth A ==| B ==| C ==|========= A : computing system (100mbit) …
Rajesh T N
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1 answer

Powering a Patch Panel

So I'm in the process of replacing all the telephone wall plates with ethernet plates so I will have the choice to hardwire to the internet from any room if I so desire. right now I have my internet modem in my kitchen from there I have ethernet…
J.Monte
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1 answer

Can I use Cat6 and Cat5e female jacks together?

Having one on each end, as long as I use the same color code for both? for some reason it's not working, both jacks have different A and B codes, but I just used the same on both being: Left column: Green Green White Orange Orange White Right…
dgeneratioN
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2 answers

Running CAT5e F/UTP together with power, without shielded plugs

I just ran about 20-30 meters of Solid CAT5e F/UTP cable from a switch to a shed where i have a server. About the last 1/3 of the way, its running together with a mains extension cable, that provides the power for the server. That's why i chose…
Christian Bekker
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1 answer

is there a difference plug setup between cat 5 and cat 5e?

Is there a difference in either the RJ45 plug or the wiring into the plug (for 568B) between a Cat 5 and Cat 5e cable, used for connecting a router to a computer? Here's a little background info. I'm a newbie to networking so to learn I wired my…
williah
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