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Home > Archive > Voice over IP Cisco > November 2007 > 7940 back light ARG!
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7940 back light ARG!
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| Curt Shaffer 2007-11-30, 1:12 am |
| I guess I haven't really had a need for a backlight on an install before!
Now I haven't' looked too much into this yet, but how is everyone dealing
with the lack of backlight on the 7940 and 7960?
Curt
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| Jonathan Charles 2007-11-30, 1:12 am |
| Front light?
Jonathan
On Nov 29, 2007 7:25 PM, Curt Shaffer <cshaffer@gmail.com> wrote:
>
>
>
>
> I guess I haven't really had a need for a backlight on an install before!
> Now I haven't' looked too much into this yet, but how is everyone dealing
> with the lack of backlight on the 7940 and 7960?
>
>
>
> Curt
> ________________________________________
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> cisco-voip@puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-voip
>
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| Robert 2007-11-30, 1:11 pm |
| On Thu, 2007-11-29 at 20:25 -0500, Curt Shaffer wrote:
> I guess I haven’t really had a need for a backlight on an install
> before! Now I haven’t’ looked too much into this yet, but how is
> everyone dealing with the lack of backlight on the 7940 and 7960?
It hasn't come up much here. Most of our phones are deployed in well lit
retail counters or offices, with an important exception...
We recently got all new furniture in IT and since we all tend to like it
a little darkened in here, phones are kinda hard to see, at least for
the old guy. I put a halogen puck light on the bottom of the cabinet,
over my desk, above my 7961. It's plugged in to a desktop lamp dimmer
and I generally run it about 60% or so.
I have attached a picture. The cabinet door is open for the picture,
It's normally closed, so the light is not in my eyes 
Robert
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| Scott Voll 2007-11-30, 1:11 pm |
| get a new phone. :-) Oh my i sound like my AM...... must be the Cisco
Kool-aid ;-0
my understanding is the new 4th gen phones have backlight. 7942/ 62/ etc
Scott
On Nov 29, 2007 5:25 PM, Curt Shaffer <cshaffer@gmail.com> wrote:
> I guess I haven't really had a need for a backlight on an install before!
> Now I haven't' looked too much into this yet, but how is everyone dealing
> with the lack of backlight on the 7940 and 7960?
>
>
>
> Curt
>
> ________________________________________
_______
> cisco-voip mailing list
> cisco-voip@puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-voip
>
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| Robert 2007-11-30, 1:11 pm |
| On Fri, 2007-11-30 at 08:02 -0800, Scott Voll wrote:
> get a new phone. :-) Oh my i sound like my AM...... must be the Cisco
> Kool-aid ;-0
>
> my understanding is the new 4th gen phones have backlight. 7942/ 62/
> etc
As a hardware hacker from way back, I have often thought of retrofitting
some sort of backlight, especially since I have a number of 7960s that
are well out of warranty.
Well, Google to the rescue....
http://www.efreestylin.com/blog/200...-backlight-mod/
Robert
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| Johnson, Ken 2007-11-30, 1:11 pm |
| I could be wrong - but I think only the 65's are backlit in the 4x and
6x series (the color models). The datasheets on the 42's indicate
backlit *line keys* but they don't say (unless I missed it) anything
about the displays being backlit. Wish they did!
I agree though that a lack of backlight, while not the biggest issue in
the world, makes certain lighting situations very tough - even in
moderately -lit offices if the lighting is not perfect there can be some
frustrating shadows on the 60's and 61's J
Ken Johnson
Mgr. Network Services,
Information Technology
LeTourneau University
_________________________________
E-mail: kenjohnson@letu.edu
Helpdesk: (903) 233-3500
Phone: (903) 233-3520
Web: http://www.letu.edu/infotech/
<BLOCKED::http://www.letu.edu/infotech/>
From: cisco-voip-bounces@puck.nether.net
[mailto:cisco-voip-bounces@puck.nether.net] On Behalf Of Scott Voll
Sent: Friday, November 30, 2007 10:03 AM
To: Curt Shaffer
Cc: cisco-voip@puck.nether.net
Subject: Re: [cisco-voip] 7940 back light ARG!
get a new phone. :-) Oh my i sound like my AM...... must be the Cisco
Kool-aid ;-0
my understanding is the new 4th gen phones have backlight. 7942/ 62/
etc
Scott
On Nov 29, 2007 5:25 PM, Curt Shaffer <cshaffer@gmail.com> wrote:
I guess I haven't really had a need for a backlight on an install
before! Now I haven't' looked too much into this yet, but how is
everyone dealing with the lack of backlight on the 7940 and 7960?
Curt
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Not spam
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Forget previous vote
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| Robert 2007-11-30, 1:11 pm |
| On Fri, 2007-11-30 at 11:51 -0500, Wes Sisk wrote:
> Views expressed here are strictly my own and no reflection on Cisco.
>
> Interesting thread and thoughts. I'm curious of your take on a few
> things:
Good place to take the thread!
> 1) Ergonomics - If user's can't see phone screen how can they read
> documents?
In my particular case, almost everything is on my PC, so paper documents
are rare. Honestly, even paper documents I get are often scanned to PDF
for other reasons, and I tend to read it there! Obviously, the accounts
payable department will have different needs.
> 2) Power consumption from the green angle. More efficient to light
> environment with phone or with a lighting appliance/fixture?
I would imagine that the electroluminescent foil from the hardware hack
link I posted probably draws less power than the halogen bulb on a
dimmer. BTW, the resistance of a light bulb filament goes up as it gets
hotter (brighter), so though I don't have the exact figures at hand, a
filament bulb at 50% brightness does not draw 50% less power, though it
does draw less than 100%.
> 3) Power delivery. Light on phone = more power consumption = bigger
> switches or bigger power supplies in switches. Upgrade network
> infrastructure to light the user desktop?
In *my* offices, I generally have much more switch than is needed, but
obviously that will not always be the case.
Along the same lines, I wish there was enough power on a switchport to
drive a 7914. Phones so equipped are frequently victims of reset-related
issues in our offices because not all of our office are on first tier
network providers.
> 4) Premium for 'Cisco Unified Desktop Lighting', CUDL, (not a real
> product!) vs. wpr/facilities installing light or occasional user desk
> lamp or USB light.
"Cuddle" for end users?
Robert
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