I'm running some 1k GPS radios from RSD-150C-24's which always put out
24.0VDC. Injectors all at the bottom, 100-200 feet of cable and they
work fine.
The only real problem I've had is getting them to maintain gigabit links
without errors. They'll either run fine with 50-100 CRC/FCS errors a
day. Or I'll get lots more FCS errors and the links will drop a couple
times a day. Some of them will eventually fall back to 100Mbps. Take the
GigE-APCs out and they run gigabit with no errors.
Chuck sent me some modified CAT6-APCs to try. I just haven't had time to
dive into it yet. Hopefully next week when we replace a couple of those
1k GPS radios with PTP550s.
On 5/2/2018 11:22 AM, Josh Luthman wrote:
There is - here are the counters: https://imgur.com/a/FdVP9IF
Note that bb5/6/7 have been losing power frequently too.
If the voltage is too low, why would they randomly reboot maybe once
or twice a week and then be fine for months at a time?
The runs are well under 100m. 24vdc feeds the NEMA enclosure, then we
have maybe 25 feet of cat5 to APs.
I would think it's no more than 1 volt loss from my 24v source to the
AP, but I have not verified this. I know it's 24v at the green
terminal block to the POE injector/Gigabit Sync injector.
Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373
On Mon, Apr 30, 2018 at 6:00 PM, Forrest Christian (List Account)
<[email protected] <mailto:[email protected]>> wrote:
If you have a base unit attached to these, you should look at the
event counters on the tripped line in the binary/boolean tab to
determine if the device is detecting an overcurrent event. If
it's seeing an overcurrent trip, then yes, check the surge
suppressors.
The other item is what has been mentioned, if you have too low of
a voltage into the PowerInjector, the ePMP's will reboot. This
is especially true in cold weather since the units seem to draw
more even after startup. You need around at least 26V on the
input of the power injector, if not a bit more, for an ePMP to run
correctly on a full 100m of cable. You could probably get away
with a bit lower voltage on shorter runs.
The 10/100 injector doesn't drop quite as many volts due to it
being a switch closure instead of a semiconductor junction, so you
might be right on the edge of what is acceptable.
BTW, too low of voltage will also cause 'trips', as when the
voltage drops below acceptable ranges for the ePMP, the ePMP power
supply circuit tries to pull more and more power from the CAT5
cable, eventually causing what looks like a brief short circuit
just before it shuts down.
On Mon, Apr 30, 2018 at 11:16 AM, Josh Luthman
<[email protected] <mailto:[email protected]>>
wrote:
I've got two of these with problems:
http://store.packetflux.com/powerinjector-plus-sync-gigabit-version/
<http://store.packetflux.com/powerinjector-plus-sync-gigabit-version/>
However one of these gives me no problems:
http://store.packetflux.com/sitemonitor-4-channel-gigabit-poe-injector-controller/
<http://store.packetflux.com/sitemonitor-4-channel-gigabit-poe-injector-controller/>
I have a 24vdc plant going up the tower. In the box it feeds
these three Packetflux units. The 4 channel POE injector has
given me 0 problems.
I've got Cambium ePMP on the PowerInjector and it has been
randomly? rebooting units for several months. Yesterday one
of the ports just decided to turn off for 20 minutes and come
right back. We've replaced the line & radio to make sure it's
the box, but all signs point to it.
Has anyone else seen this or am I lucky in getting the only
two units with power problems on them? AFAIK sync has been
just as reliable as the power through them.
Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
<https://maps.google.com/?q=1100+Wayne+St+Suite+1337+Troy,+OH+45373&entry=gmail&source=g>
Suite 1337
<https://maps.google.com/?q=1100+Wayne+St+Suite+1337+Troy,+OH+45373&entry=gmail&source=g>
Troy, OH 45373
<https://maps.google.com/?q=1100+Wayne+St+Suite+1337+Troy,+OH+45373&entry=gmail&source=g>
--
*Forrest Christian* /CEO//, PacketFlux Technologies, Inc./
Tel: 406-449-3345 | Address: 3577 Countryside Road, Helena, MT
59602
<https://maps.google.com/?q=3577+Countryside+Road,+Helena,+MT+59602&entry=gmail&source=g>
[email protected] <mailto:[email protected]> |
http://www.packetflux.com <http://www.packetflux.com/>
<http://www.linkedin.com/in/fwchristian>
<http://facebook.com/packetflux> <http://twitter.com/@packetflux>
