Is that a HV module? Would a non-HV module prevent GigE negotiation but
still allow the radio to power up and run at 100Mb?
On 5/6/2016 10:57 AM, ch...@wbmfg.com wrote:
I will run it through its paces once I get it back.
We have historically had lower clamp voltages and more greater
sensitivity to surges and impulses than our competitors. That gives
the equipment greater protection but it also causes problems when
there is high noise or ground loops. One of the first support calls I
ever got was from a guy trying to install one of our outdoor surge
protectors in an attic and tying the ground to the ground wire in a
nearby romex cable.
Got them to put the thing outside the house and ground it to the house
ground and it actually started working.
But the surge suppressor itself could have issues too. Once in a while
one gets through our process with a problem.
*From:* Joshaven Mailing Lists <mailto:lis...@joshaven.com>
*Sent:* Friday, May 6, 2016 9:54 AM
*To:* af@afmug.com <mailto:af@afmug.com>
*Subject:* Re: [AFMUG] Gigabit Ethernet on Cambium 450i only running
100Mbps
One possible difference is that your changing the impedance of the
ground path. Try using the same wire to connect to ground and ground
out the surge module… you may find that the issue is low impedance
causing a ground loop to travel your cable.
In that event the solution is to give the current a lower impedance
path that isn’t through your cable or at least only on the shield of
your cable.
I use shielded patch panels before my surge modules and that creates a
drain for the shield that has lower impedance (generally) then other
paths.
Ideally you would run a ground cable up your tower for all of your
equipment that is large enough wire to be the best path to ground.
Remember that this isn’t just about shorting grounds to the earth
ground but you also have ground currents and static electricity
created by wind etc that causes stray electricity that can interfere
with your systems.
Sincerely,
Joshaven Potter
Google Hangouts: j...@g2wireless.co <mailto:j...@g2wireless.co>
Cell & SMS: 1-517-607-9370
supp...@joshaven.com <mailto:supp...@joshaven.com>
On May 6, 2016, at 11:43 AM, <ch...@wbmfg.com
<mailto:ch...@wbmfg.com>> <ch...@wbmfg.com <mailto:ch...@wbmfg.com>>
wrote:
And there is a reason....
When surge components clamp, they do so for a reason.
*From:*Wireless Administrator <mailto:wirel...@htn.net>
*Sent:*Friday, May 6, 2016 9:16 AM
*To:*af@afmug.com <mailto:af@afmug.com>
*Subject:*[AFMUG] Gigabit Ethernet on Cambium 450i only running 100Mbps
*Replaced This ……*
<image004.jpg>
*With This …….*
<image005.jpg>
*On same ground point and got This ……*
**
*<image010.png>***
**
*:-)*
Except I want this to work …….
<image011.jpg>
*L***
*Extra effort to ensure clear pictures and easy to read story line ……*
**
*Steve*
*From:*Wireless Administrator [mailto:wirel...@htn.net]
*Sent:*Friday, April 29, 2016 12:03 PM
*To:*'af@afmug.com <mailto:af@afmug.com>'
*Subject:*Gigabit Ethernet on Cambium 450i
We’re not able to get our Cambium 450i radio’s Ethernet Interface
to run at Gigabit speed.
Our setup is as follows:
Gigabit switch (Tried several brands)à14’ Cat6 PatchàGigabit Sync
injector (48V)à35’ Best-tronics Cat5
Shieldedà800-800-GIGE-APC-HVà80’ Best-tronics Cat5 ShieldedàCambium
450i
It works without the 800-800-GIGE-APC-HV. (Cat5 Coupler).
Anyone ……….
Steve B.
