2564
www.austincollege.edu<http://www.austincollege.edu/>
From: The EDUCAUSE Wireless Issues Constituent Group Listserv
[mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Mike King
Sent: Friday, July 21, 2017 9:50 AM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] Backup power
Most UPS companies offer service contracts on the larger UPS (Symmetry line
from APC is one example). That's what I think they were asking about.
IE, If your putting cheap throwaway UPS's in there, is it worth having a
service contract.
I think it comes down to how you utilize your network. If
I would ask why the connection between a UPS and maintenance contract? We have
a mix of UPSes in important locations and *quality* surge supressors in others.
We’ve had two switches fail due to power issues (out of roughly 100 on campus)
over the past 5 years, and both were actually connected
Sandra,
We are also an APC customer, but it looks like our parts differ a bit from
others. We use the SMX1500RM2UNC model on our MDF/IDF locations. With the SMX
series, X is for extended runtime and allow for additional battery packs to be
added for more runtime. This part number also is a
e: [WIRELESS-LAN] Backup power
We size and install a UPS in every switch closet. We have only a few models of
switch and access point, so we built a spreadsheet to calculate our power load
based on actual power draw observed in our lab. We try to size our UPSes to
provide a minimum of 15 minut
In theory, we use UPS with all of our switch. In practice, while we always
have one when we deploy a new or replacement switch, the funding hasn't
been there for maintaining the batteries or replacing a UPS if it fails.
Joel Coehoorn
Director of Information Technology
402.363.5603
@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] Backup power
We have an APC Smart-UPS in every closet. Between VoIP, WiFi, paging, HVAC,
door locks, and repeaters for 2-way radios, we can’t let a power glitch
interrupt connectivity, especially since we’re in a rural area prone to
brownouts
> On Jul 20, 2017, at 10:02, Sandra Bury wrote:
>
> I would be interested to know how many of you include UPS purchases for
> switches in each network closet in your campus deployments.
We put our switches on UPS. When a larger building UPS is available from
We have an APC Smart-UPS in every closet. Between VoIP, WiFi, paging, HVAC,
door locks, and repeaters for 2-way radios, we can’t let a power glitch
interrupt connectivity, especially since we’re in a rural area prone to
brownouts and blackouts.
We’re also on a hill, prone to lightning strikes,
Power is extremely reliable on our campus, but we still try to provide
battery backup for most of our switches (VOIP and life safety reasons).
We have found that the small 1500-2200VA UPS units need battery swaps
every 3 years and full replacement every 6-9 years if you want to
guarantee 100%
[mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Dawn Douglass
Sent: Thursday, July 20, 2017 9:13 AM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] Backup power
I always put every switch on a UPS.
On Thu, Jul 20, 2017 at 11:02 AM, Sandra Bury
<sa...@fsmail.bradley.
I always put every switch on a UPS.
On Thu, Jul 20, 2017 at 11:02 AM, Sandra Bury
wrote:
> Good morning -
>
> I would be interested to know how many of you include UPS purchases for
> switches in each network closet in your campus deployments. If you do not
> build in
It is a mixed bag for us. We have over 80 closets on our campus. If we
think a location has reliable power, we don’t bother and we just replace a
switch if something happens. We did identify 5 residential buildings that
have unreliable power so we put UPS’s in them. The other buildings
Sandy,
We put UPS backup on every switch/stack on our 13 campuses to support VOIP
phones in the event of a power outage for a minimum of 15 minutes. Some
campuses have a generator, and the UPS is only there to buffer.
As for our switching, all edge switches are HP/Aruba which carry
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