Be careful connecting +48VDC to a SiteMonitor. Verify it's a Base-II
first. The old Base-I's are limited to 30 or 32VDC on both inputs.
I typically connect the pwr1 input to my main rail, usually 24-28VDC so
it's safe for Base-I's or Base-II's. I've been recycling a lot of old
Base-I's from site rebuilds the last year or so. Pwr2 gets the wall
brick for utility monitoring. I try to dig out old SyncPipe power
supplies if I can find them because they're linear. We're at many towers
with crappy power, or those 3-phase sites that lose a phase and we end
up with <100VAC and our UPS transfers to battery. Most switching bricks
will operate down to 80-85VAC. Has happened more times that I can
remember. Site goes down because the batteries ran down, yet we never
got a utility power alarm. The linear brick lets you see the voltage
situation. Problem is, they're getting pretty hard to find now.
On 3/20/2017 7:51 AM, Josh Baird wrote:
Yes - it can accept multiple voltages on PWR1 and PWR2.
Josh
On Mon, Mar 20, 2017 at 8:24 AM, Paul McCall <[email protected]
<mailto:[email protected]>> wrote:
Can the sitemonitor have two different voltages on the 2 inputs
that it monitors / powers from?
We have a lot of them setup in the field with a 110vac โ 24v wall
wart to monitor commercial power. And, the 2^nd input is off the
24v battery array. Batteries are all 48v now, so wondering if I
need to buy a bunch of similar 48v wall warts or whether the
SiteMonitor can deal with the 2 different voltages and I donโt
need to buy anything ๐
Paul McCall, President
PDMNet, Inc. / Florida Broadband, Inc.
658 Old Dixie Highway
Vero Beach, FL 32962
772-564-6800 <tel:%28772%29%20564-6800>
[email protected] <mailto:[email protected]>
www.pdmnet.com <http://www.pdmnet.com>
www.floridabroadband.com <http://www.floridabroadband.com>
