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Why RJ45 is called so - Network Accessories

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Per Wikipedia; "RJ45 is technically incorrect because the RJ45 standard specifies the mechanical interface but a different wiring scheme than T568A/B, which is often used for Ethernet and telephones." So it's a standard set by a wiring authority. Actually it should be called 8P8C.

Posted on Feb 04, 2009

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Actually it is named so as pin 4 & 5 are not used for data communication in RJ45 modular connector.

Posted on May 05, 2009

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Replace RJ45 connector


You have to cut off the bad connector, strip the outer sheath about an inch down, untwist the wire pairs and put the wires in the correct slot on a new rj45 connector and use a crimping tool to crimp it. You could also buy a new cable for a couple dollars on monoprice.com.

Aug 31, 2011 | Polycom Cable - 25ft, RJ45 - SS ...

1 Answer

Rj45 connectors seem loose in ports. if you wiggle the cable you loose connection. we made our own jumpers with cat 5 and standard 8pin rj45 ends


Does each end "click" when you push it into a socket? It should.

Most 8-pin RJ45 ends have a "tab" -- squeeze it to release the "lock" which holds the end into the socket. Check that the "bump" on the tab is going deep-enough into the socket to "lock" the end into the socket.

Apr 08, 2010 | ADC Kentrox Network panel (MPP-N28BA1)

1 Answer

How to attach cat 6 cable to rj-45 jack


Good day..You should have knowledge about the color coding for cat-6 cable termination. Its called "termination" computer term.if it is a straight-throw use this color code:RJ45 must face at you when you arrange the wire colors..WOrange,Orange,WGreen,Blue,WBlue,Green, WBrown,Brown..(W=White). Then use a Crimping Tool to crimp it.Flat that twisted wires before you insert to rj45. Hope you are okey with this. Ask me if problems occured. Mastergani

Mar 17, 2010 | Network Accessories

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How do u put the RJ45 Modular plugs on to network cable


Radio shack or electronics store has a tool that will crimp the modular plugs onto the network wire. Usually under 30 bucks.

Good luck!

Oct 09, 2009 | Cat5e Cat 5E Modular Plugs - For Round...

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No connection, have checked cable connection each end without plugging it into the patch panel and it works, plug it into the patch panel nothing? Could the patch panel be faulty?


Do you mean that you tested the patch lead that connects the patch panel and the hub?
OR
The RJ45 connection at the workstation (one end) and the RJ45 connection at the patch panel (at the other end)?
If these checked out OK then the RJ45 connection at the hub could be faulty, try a different port on the hub, do you get a link light?
The LAN card in the conputer could be faulty, try another computer at the "faulty" workstation to check the network connection.

Aug 13, 2009 | Unicom Patch panel

1 Answer

Router with RJ45 cable port available


Nowadays most routers come with RJ45 connectors. That is a connector for network cable.
You might be talking about a serial port, found on many security systems.
If you want to connect the security system, you need a serial cable to connect the security system with your computer, and thru a specialized software (more certain provided by the security equipment, be able to perform the task you have in mind.

If this answer helps please don't forget to rate it

Jun 14, 2009 | 3Com Router Cable E1 1200HM RJ45 20M...

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Rj45 male to db9 male cable for ups


If you have a BackUPS CS, you are probably either using it with the USB cable that is supplied or with the 940-0128A supplied by APC, which permits running the UPS in dumb mode. By building your own cable, you can now run the BackUPS CS models (and perhaps also the ES models) using smart signalling and have all the same information that is available as running it in USB mode.
The jack in the UPS may be easily use a 8 pin RJ45 connector. It is easy to construct the cable by cutting off one end of a standard RJ45-8 ethernet cable and wiring the other end (three wires) into a standard DB9F female serial port connector.
PC Signal PC pin UPS Pin UPS signal RxD 2 2 TxD TxD 3 8 RxD GND 5 7 Ground FG Shield 4 Frame Ground Though these UPSes are USB UPSes, APC supplies a serial cable (typically with a green DB9 F connector) that has 940-0128A stamped into one side of the plastic serial port connector.
Here is suggested scheme of original 940-0128A cable
APC Part# - 940-0128A computer --------- Inside the Connector--------- UPS DB9-F | | RJ45 pin - signal | | Pin - Color | | 4 DSR ->|---+ | | | diode resistor | 6 DTR ->|---+---->|----///---o kill power | 8 Orange | | 1 DCD <-|----+ | | | | 2 RxD <-|----+----------------+--o low battery| 3 Brown | | | 7 RTS ->|----------+--///--+ | | | | | +--///--+ | | | | 8 RI <-|----+----------------+--o on battery | 2 Black | | | 9 CTS <-|----+ | | signal | 5 GND --|-----------------------o ground | 7 Red | | 3 TxD | | | chassis | Chassis/GND |-----------------------o ground | 4 Black | | | Not connected | 1, 5, 6, 9, 10 --------------------------------------

Sep 30, 2008 | Digi (76000200)

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Nokia 2626


here in the philippines...
18 pesos per meter..i dont know in your place..

thanks..

Jul 17, 2008 | GE 7-foot RJ45 data cable for the KTD-400,...

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