Why disparage blondes? Maybe a Ryan Lochte moment?
-----Original Message-----
From: George Skorup
Sent: Friday, August 19, 2016 6:51 PM
To: af@afmug.com
Subject: Re: [AFMUG] GIGE-POE-APC and -48 radio
No, it's not confusing the way it is now. I just had a blonde moment.
Obviously if you put all pins to the -48 no leds will come on.
See, now that's confusing. I removed all jumpers and put positive to the
+, negative to - as you have them marked and the green LED still lights
up. Reverse them and the red LED comes on instead. Perhaps that's where
some of my confusion is coming from. It looks like the LEDs are just
wired to the input block and are independent of the POE circuit. Am I wrong?
Don't get me wrong, the LED is nice to have to know there's power
present, but it's not essential. Meaning I could live without them.
On 8/19/2016 9:02 AM, Chuck McCown wrote:
It is a bit confusing. I could label them 1&2. I think if you do + and -
then the green LED will come on if opposite the red.
If I can make it less confusing please let me know how. Obviously if you
put all pins to the -48 no leds will come on.
-----Original Message----- From: George Skorup
Sent: Thursday, August 18, 2016 6:51 PM
To: af@afmug.com
Subject: Re: [AFMUG] GIGE-POE-APC and -48 radio
Oh, I see. Chuck made things easy by marking + and - on the input block
so you know what's what on the jumper diagram on the back of the card. I
know he's explained this before. Apparently I'm just a little slow this
week.
On 8/18/2016 7:44 PM, George Skorup wrote:
Yep. That's why I'm going to have a RSD to separate all "-48" loads at
the sites.
I think I'm working on too many things at once and confusing myself and
forgetting things, because I've done this before. :(
On 8/18/2016 7:35 PM, Bill Prince wrote:
The Trango bonds their return to chassis, regardless of what the POE
does. So you need to check what else is on that power feed, and if any
of those devices also bond to chassis. If one or more is bonding + to
chassis (that's Trango), then any other that bonds - to chassis is gonna
blow a fuse or let the smoke out.
bp
<part15sbs{at}gmail{dot}com>
On 8/18/2016 5:21 PM, George Skorup wrote:
Chuck, can you verify for me again.. the earth side of this thing isn't
tied to the negative side of the input block? I'd say no, because
obviously the green LED is on when wired as you have them marked. And
the red LCD when it's backwards. So the LEDs are just a polarity
indicator and has no bearing on what's what.
Just trying to wrap my mind around any potential issues when using
these for powering the old Trango radios (-48 on all four pairs, return
on shield) which I'm about to do. I'm out of Trango's -48 POE boxes and
ain't buyin no more.
I suppose sometimes I over-think things.
