Core switch port short circuit

LORRAIN SYSTEMS provides modular data centers, thermal containment, intelligent PDU, 800G transceivers, liquid cooling, AI interconnects, and edge networking solutions for sustaina...

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Oct 06, 2025

Cable short killing PoE switches? : r/networking

Ours returned some strange errors - short circuit, no PD detect, overload, maybe some others I''ve forgotten - all on the same devices and cabling that the previous Brocade switches had been running

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Mar 02, 2026

USB port short circuited, which components are affected?

Hi everyone. I was careless today while plugging in a flash drive, and bent two of the pins in my case''s USB port, which touched each other and promptly short circuited my desktop, shutting it

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Dec 20, 2025

Nintendo Switch / No Power / Short : r/consolerepair

If using an OEM charger and you see 15v and .48a, but do not see the meter ever reset, your charging circuit is most likely fine and you have a first stage boot issue.

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Mar 21, 2026

USB Port Short Circuit Question

I realized there was a short at the other end of the USB cable, as the connector was not the molded kind, and it felt loose. Jiggling it in certain directions removed the short. My question is, I

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Jun 27, 2025

What is a Core Switch?

What is a Core Switch? A Deep Dive A core switch is the backbone of a network, providing high-speed switching for data packets between different network segments; essentially, it''s

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Aug 03, 2025

Shorted caps under cpu

Hi, I''m looking for some help here. I''ve been given a switch to repair : the symptoms were that it won''t charge and won''t start. I''ve checked the caps

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Apr 18, 2026

Port on core switch keeps dropping | Wired Networks

The port on our core switch (HP A5500) that our Smoothwall box is connected to keeps going up and down. It will drop for 3 seconds then come back up but this can have prolonged impact

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Oct 17, 2025

What Is a Core Switch in a Network?

Core switches must support extremely high throughput, often with port speeds ranging from 10 Gigabit Ethernet (10G) to 400G+ Ethernet. To achieve wire-speed forwarding, these devices

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Mar 04, 2026

short near M92T36 after changing port and chip

short near M92T36 after changing port and chip Hi all, I have a switch lite here that had bent pins on the charge port, I replaced the port and still had some shorts around the M92T36 along

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Apr 29, 2026

FS Community

Hier sollte eine Beschreibung angezeigt werden, diese Seite lässt dies jedoch nicht zu.

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Nov 07, 2025

Fixing a Dead OLED Nintendo Switch: Mysterious Charge Port Short

In this video, I revive a dead OLED Nintendo Switch that showed no signs of life. The culprit? A short inside the charging port—a common issue with these consoles.

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Aug 08, 2025

Nintendo Switch / No Power / Short : r/consolerepair

Nintendo Switch / No Power / Short I have a short, circled in the photo above. My first crack at a switch, looking for next steps.

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Dec 11, 2025

POE short circuit? : r/mikrotik

POE short circuit? I have a CRS328-24P+RM running SWOS and I have one particular camera that will not power up regardless of the ports POE settings (On,

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May 29, 2026

microcontroller

I have received two boards from one of our customers that have the same defect. It is a short circuit between VCC and GND. I was able to trace this

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Sep 10, 2025

PoE Port Short Circuited

I was replacing a 16 channel K series for the I series, on a job where one of the camera ports goes to the uplink port of a Hikvision PoE switch, to connect several cameras that are in a

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May 15, 2026

Hikvision

However, I''d maybe start by tracing the ports that say they are short circuited, since short circuits are simpler to trace, looking for a component those

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May 08, 2026

How to Find a Short Circuit On a PCB

Use visual inspection, continuity testing, current-injection/thermal methods and smart isolation steps to systematically

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Mar 05, 2026

Features and Applications of Core Switches

A Core Switch is a critical device that operates in the backbone portion of a network, primarily used for high-speed data switching. It is part of the commonly used Network Switch

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Oct 25, 2025

POE-Short Circuit

It''s normal for a POE out port to show “waiting for load” if an injector is providing the outbound device power. I don''t understand the short circuit error completely, but it doesn''t astonish

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Feb 06, 2026

Transient Protection in POE Applications

During a partial connection, at least one of the PSE supply lines and return lines are connected to the PD, completing the power circuit. Current now flows into the PD system, but the transformer lines are

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May 18, 2026

Will a PoE port short-circuit damage devices?

A PoE port short-circuit does pose a real risk of damaging devices. This isn''t an exaggeration; it''s a real hardware disaster that can occur and

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Jul 13, 2025

USB port doesn''t work after peripheral short circuit

As I was connecting my audio mixer (powered off but connected to a different outlet) to my USB audio interface with 1/4" audio cables, one of the cables zapped me (more than regular

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Apr 25, 2026

Question

Hi everyone. I recently purchased a new CPU, motherboard and RAM combo. Since this upgrade my computer shuts down if I plug any USB device into one specific back port. There is a

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Jul 26, 2025

PoE Short Circuit Protection

I have a TL-SG1210P poe switch that I''m planning to use for exterior IP Cameras, and I wanted to know what would happen if someone were to cut the ethernet cable and cause a short circuit.

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Aug 22, 2025

Network Switch Troubleshooting Guide: Common

A comprehensive switch troubleshooting from the physical layer to the data link layer to the network layer to find out why your network switch is not

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Feb 18, 2026

View topic

Answer: Our switches are "passive" POE which means if POE is enabled on a port the power is live so if you plug in a cable that is shorted or the piece of equipment is bad you will damage

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May 14, 2026

Mariko''s SoC might be dead after a short on its caps

Hello, After reading quite a few posts there, I''m excited to join this community. I have an issue with my v2 switch. It might be dead for good but it''s

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