So, we have a few of these deployed now since Halloween '17 oddly
enough. These sites were the trial run of these for us and they passed
with flying colors. Forrest, my one (or two) request is show uptime of
the unit in the web interface and of course SNMP of the power draw for
each port.
Now to my real question that will help me plan for more deployments.
Can I run a different polarity on different cards in the same chassis?
Say -48v in Pwr A and +48v in Pwr B and a "Power Injection + Canopy
Sync" card set to +48v and a "Cambium Sync for 450i/450m" card set to
-48v. It seems implied that will be OK on the PacketFlux website but the
manual states that all of the inputs share a common return which should
not work.
Quote from manual...
3. For each input, wire the power source wire to the Vin terminal, and
the return wire to the Rtn terminal. A terminal block is provided for
this purpose. For a positive voltage source (+24V, +48V) this means that
the + wire will be on Vin, and the – wire will be on Rtn. For negative
voltage sources (‐48VDC), the – wire should be on Vin and the + wire
should be on Rtn.
But then..
5. At least one of the power supplies needs to be positive, with a
minimum of 12V. The control board will use whichever positive voltage is
highest to power itself. It can't be powered from a negative power source.
Thanks,
--
Matt Hopkins
Network Administrator
[email protected]
onlinenw.com <http://onlinenw.com>
