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Questions tagged [power]

For questions about power and power management on network devices. It should only be used for on topic network devices. For instance, you have a switch with PoE, but the power supply might be faulty.

6
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1answer
1k views

Cisco 3750X Power Cable

I received a Cisco 3750X the other day. I went to go plug it in for testing and found that the standard three prong female power connector is no longer compatible with the power supply. Cisco has ...
5
votes
2answers
60 views

Network Switch Power Isolation

I run a small office network that uses TP-LINK T1600G-28TS (TL-SG2424) JetStream switches. The office is across two buildings, each fed by a different phase of power. We've recently installed HD ...
1
vote
1answer
59 views

Feeding a PoE capable device with variable power supply over TIA568 A cable (DC spares)

The purpose of such a variable power over Ethernet supply would be to test network equipment that are receiving power over PoE under condition of conditions of low voltage or current and determining ...
1
vote
1answer
53 views

Cisco C3750G Power On Failure

I have been using my C3750G for a while now. It has been used normally and hasn't been exposed to any excess heat but for some reason when I issued the 'reload' command the other day the switch didn't ...
3
votes
2answers
300 views

How close can Ethernet cables be to power line if in parallel?

How close can unshielded CAT 5e/6/6a cables be in parallel to 110V power lines in rooms of common residential/commercial buildings before interference becomes an issue? If proximity between the two ...
4
votes
2answers
8k views

show current power consumption Cisco 3650 IOS 3.07.04E

What command can I issue to see the current power (POE and System Power) on a Cisco 3650 Switch running IOS 3.07.04E. Sh Env Power #shows me power supplies, not usage. Sh Power Inline #show me the ...