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Questions tagged [surge-protection]

21 questions
13
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1 answer

Sysadmin in the Developing World: What are the differences between various kinds of power protection?

Hello I'm an ICT (InfoComTech) US Peace Corps volunteer deep in Tanzania who has the task of managing and advising concerning our college's two SunFire Sun Ray Servers and Dell Proxy server (on 2 Tripplite 2000VA rackmount Server UPSs and behind 30A…
thadk
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3 answers

Should pcs be unplugged before restoring power

We have an upcoming scheduled power outage for maintenance. UPS protects our servers. But it has been suggested that all PCs should be unplugged to prevent damage from power surges when power is restored. Is this precaution really necessary?
Rory
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Shocking ESD damage, what more can be done?

Today, over $6,000 in networking equipment was destroyed. Remarkably, the main circuit SPD, power strips and APCs are fine. Ethernet seems to be the method of surge transmission, as everything connected to the physical network up until the fiber…
Justin
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7
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1 answer

Surge protection for outdoor network cable run

I'm going to have a network cable run between floors of a home, and most of the run will be outdoors, up the side of the building. I ordered a spool of shielded UV-rated waterproof Cat6 cable. From what I've read, I should ensure that if any part of…
cp.engr
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6
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1 answer

Troubleshooting unusual server room power issue. (Suspected power surges or spikes)

We have been experiencing a very strange problem in our new office's server room across all the power outlets. Specifically, when all the equipment is up and running (i.e. the air conditioning system, 2x rack mounted servers, 5x 48-port PoE switches…
Austin ''Danger'' Powers
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2 answers

Available EMP protection devices?

This weekend there was a solar CME warning that finally had no perceptible impact. However, I was wondering what could be done to mitigate the effects in case a large one took place. Are there any devices available in the market to protect servers…
Mister Smith
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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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Can I power 2x6 socket surge protected PDUs from a surge protected UPS?

I've got a local network rack with: 24 port switch 2x voip dect bases 2x modems 1x load balancing router 1x wifi access point 1x 2bay Synology nas At the moment these are all powered via 2x 1U 6 socket surge protected PDUs. I want to add a UPS…
sam
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8 answers

Anti surge protection

Great site - my first posting! I support a number of small business for all things computing. I protect the servers with APC Smart-UPS 1000. The do just what they were bought to do. However, I dont protect any of the workstations. Recently we had a…
Grimbo
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How much signal loss does a typical coaxial surge protector cause?

I'd like to connect equipment to a coaxial surge protector. Is it needed for a properly grounded coaxial cable? How much attenuation does a typical coaxial surge protector cause over the range of frequencies it will pass?
joeforker
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How are load balancers, health checks, and autoscalers supposed to handle surges?

I have a service which looks like: Internet -> Load Balancer -> Instances What seems to be happening in my service is the following scenario: A large surge of user traffic comes in, more than the current instances can handle. The load balancer does…
Kevin Baragona
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Rack PDU with IP control and surge protection

Im speccing up a new 16A PDU for a 42u rack build, i need a PDU with IP control so that i can power cycle devices remotely. But I've noticed that most PDUs with IP control don't have surge protection on them. I can find lots of surge protected PDUs…
sam
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Lightning/surge risk of Ethernet cable run inside an exterior wall

In a previous question, I had planned a Cat6 (Ethernet) cable run outside a home, adjacent to a coax run. I was advised against it, and I'm interested in taking that advice. Now I'm considering running the cable inside an exterior wall. (I mean…
cp.engr
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Surge Protector for PDU and Servers

I am going to be attaching my gear in this order: 20 amp outlet => Surge Protector => PDU => servers. My current PDU says in the manual "does not provide surge or line noise protection". I have been doing research but am a bit confused on the joule…
invulnarable27
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Using an "AV" power conditioner with servers

We have render servers that don't need to be on battery backup but we'd like to protect from power surges and being under-powered. I came across this power conditioner which will block surges and turn off power if it's being under-powered. …
Copy Run Start
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