Displaying 8 results from an estimated 8 matches for "amperage".
2006 Aug 02
4
OT: Measure 2U Server Amp Usage
Hi,
Running a bunch of CentOS servers on 2U supermicro equipment, usually with
8 drives on Adaptec SmartRAID V or LSI Megaraid.
In designing a rack in a data center, the question arises as to how to
measure the amperage the server uses, prior to investing in power drops
that actually do that for you, even remotely, for about $260.00-300USD per
unit. This number is the important one these days in determining
rack/datacenter design.
So the geek question is, "what do you use, from radio shack, or elsewhere,
to...
2005 May 23
3
ISPCON Mini-emergency: ATA186 Power Cube OK on SPA841?
Guess who's here to do an Asterisk demo this week without the power
supply for his SPA-841.
I have an ATA186 with me. Both phones use a 5v supply. Does anyone
know whether the supplies are interchangeable?
Thanks in advance; sorry for the noise.
B.
2017 May 24
4
NUT namespace: RFC for new variable addition
...efore.
>_______________________________________________
>Nut-upsdev mailing list
>Nut-upsdev at lists.alioth.debian.org
>http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/nut-upsdev
It was my impression too. However it seems the 'phase shift' usually refers to lag between Amperage and Voltage waves, while this issue is (if I get it correctly) about two separate ATS inputs fluctuating on their own different clock-offsets. Should be same freq (50 or 60) though, or likely assumed so - which might not be guaranteed in real life either ;) On the other hand, if the freqs differ, t...
2017 May 24
0
NUT namespace: RFC for new variable addition
...should
>> suffice.
>>
>> Also, how does this apply to 3-phase systems? Is it nominally 120
>> degrees?
>>
>> Strange that this has not come up before.
>
> It was my impression too. However it seems the 'phase shift' usually refers to lag between Amperage and Voltage waves, while this issue is (if I get it correctly) about two separate ATS inputs fluctuating on their own different clock-offsets. Should be same freq (50 or 60) though, or likely assumed so - which might not be guaranteed in real life either ;) On the other hand, if the freqs differ, t...
2017 Jun 14
0
NUT namespace: RFC for new variable addition
..._____________________________
> >Nut-upsdev mailing list
> >Nut-upsdev at lists.alioth.debian.org
> >http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/nut-upsdev
>
> It was my impression too. However it seems the 'phase shift' usually
> refers to lag between Amperage and Voltage waves, while this issue is (if I
> get it correctly) about two separate ATS inputs fluctuating on their own
> different clock-offsets. Should be same freq (50 or 60) though, or likely
> assumed so - which might not be guaranteed in real life either ;) On the
> other hand, if...
2018 Dec 12
2
CentOS 7.6 external USB dmesg issue
>What kind of solid state 2 TB drive is this and how is it 'powered'?
>It is looking like the drives aren't getting completely written to
>before being removed as the ext4 error is a 'oh wait this drive
>doesn't have everything I expected too late to give up aaaaaaaaaah'
>type oops
This is a Samsung 860 EVO 2TB. my connection is a cable that provides both
2017 May 24
2
NUT namespace: RFC for new variable addition
Hi all,
here is another one, related to ATS (automatic transfer switch) this time.
in order to track "dephasing" between input sources (1 and 2), I'd like to
add a new variable: "input.phase.shift"
Details and implementation can be found on:
https://github.com/networkupstools/nut/pull/433
Comments and feedback warmly welcome.
cheers,
Arno
--
Eaton Data Center
2008 Oct 06
15
Looking for some hardware answers, maybe someone on this list could help
I posted a thread here...
http://forums.opensolaris.com/thread.jspa?threadID=596
I am trying to finish building a system and I kind of need to pick
working NIC and onboard SATA chipsets (video is not a big deal - I can
get a silent PCIe card for that, I already know one which works great)
I need 8 onboard SATA. I would prefer Intel CPU. At least one gigabit
port. That''s about it.
I