Questions tagged [rj45]

For questions about Registered Jack 45, an 8 position 8 contact (8P8C) modular connector commonly associated with Ethernet and category 5 (Cat 5) cables. Consider using in conjunction with associated tags "connector", "ethernet", "cat5", "cables", etc., if applicable.

For questions about Registered Jack 45, an 8 position 8 contact (8P8C) modular connector commonly associated with Ethernet and category 5 (Cat 5) cables. Consider using in conjunction with associated tags , , , , etc., if applicable.

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118 questions
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What is the purpose of two cylindrical holders in RJ45 female connector for PCB

I am a beginner in PCB design. While using sensors for my project I thought it would be a great idea to connect my sensors using RJ-45 connector and in my device, I'm thinking of using a RJ-45 female connector for PCB. The female connector looks…
Ashish Neupane
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Is there a low-cost alternative to RJ45 cables for large number of signals?

We are designing two interface (printed) boards and need to connect them by cables (0.5-1.5m). So we're thinking about which connectors to use. We'd like to use twisted-pairs like in a RJ45 cable. The problem is, we are talking about 200 signals…
Robert Seifert
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Why are non-conductive circuits designed on PCB?

This is the PCB of the network communication industry. What I know now is that after adding these redundant non-conductive circuits, the performance is improved from Cat3 to CAT5e. I really want to know what the principle is. Thank you very much.
David
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Creating a PCB mount RJ45 male plug

I am wondering on how one could build a male RJ45 connector with PCB Mount. I searched and, as I expected, I did not found any existant connector like this. However, I found this interresting item : The "core" of the RJ45 plug seems to be a PCB…
dudu721
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Splitting a cat 6 cable through wire/cable connectors

There's been a cock-up in the internet wiring at a building I'm helping out at (I'm installing the networking there) and the builder has tried to rectify the situation with a solution I have zero confidence in. I however am no expert in…
Steve
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RJ45 connector on breadboard

For my project which for the next (many) months I want to make it on a breadboard. I ordered RJ45 connectors, but these do not fit on a breadboard. What would be a good way (or is there a way) to connect these on a breadboard? Of course I can solder…
Michel Keijzers
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Connecting a RJ45 MagJack

I've made a few things now using a RJ45 jack and a separate pulse transformer. To make the design smaller i'm looking to use a magjak or a RJ45 connector with the pulse transformer built in. The jack has the center tap pins tied together to a single…
vini_i
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Ethernet Connector(MAG JACK) question

I am curious about why there are wings attached to the magjack for the Ethernet. Other RJ45 jacks without magnetic don't have the wings, but most RJ45 jacks with magnetics inside have them.
Steve
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Ethernet components location

The normal ethernet components configuration: MAC <-> PHY <-> Magnetics <-> RJ45. My RJ45 connector must be mounted on the system box's front panel, so there must be a wire routed from the PCB to the front panel connector. My system box contain many…
diverger
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PCB design for RJ45 jack

I'm designing a PCB to host an Applanix APX15 GPS/inertial navigation device. The hardware integration manual (which seems not to be publicly available) shows that a 10/100 BaseT Ethernet is supported via four pins on the board and explains that the…
Rob Skelly
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DHT22 bad readings on long rj45 cable

Duplicate of https://raspberrypi.stackexchange.com/questions/91781/dht22-bad-readings-on-long-cable, I figured there is chances people here have a solution for me. Hi, I'm preparing a setup with a long wire separating the sensors and the rpi. Wire…
ericmas001
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MagJack for PoE Powered Device

I am adding Power over Ethernet functionality in my Toradex's System-on-module (Colibri iMX6ULL) based carrier-board design. I am having confusion in selecting the MagJack for the design. I want to implement Mode A and Mode B. However, It would be…
abhiarora
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Flooded LAN RJ-45 connector may damage connected router?

I had an accident in the house and one of the LAN (cat. 6) cables including RJ-45 connector has been flooded. This "flooded" cable, along with other (dry) ones, was connected into a working gigabit router with WiFi but it was the only one that was…
Xolex
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Correct Ethernet Jack + Magnetics for 100Base-TX

I've been shopping around for Ethernet jacks for use in a personal project. The part specifically states that it's internal PHYs are 100BASE-TX/10BASE-T/Te IEEE 802.3 I understand the basic difference between 100Base-T and 100Base-TX, but I guess I…
ahogen
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standard ethernet pinout for M12 A coded

I would love to follow the most common pinout (I design connector and receptable, but you never know). I find conflicting sources: -RJ45 connector exact same pinout number by number: -A big cable producing brand Turck seems to have another…
lode
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