I am changing a PMP 100. That is 2.4 GHz over to an EPM P1000 subscriber module and the PMP 100 works perfectly with the standard PMP 100 power supply or I can even switch it over to the EPMP1000 standard supply and it will work. But if I put the EPMP 1000 on it own supply that comes with it or the standard PMP 100 supply the radio never shows power. I have tested the cable for continuity and is OK. I have to think that the cable is resistive and the Voltage is too low at the EPMP1000. I have not checked that yet. The cable length is right at 100 feet. Strange! The EPMP1000 works fine on a 6’ jumper to the PS.
Phil Rankin Wireless Telecommunications Corp. Pittsburg, KS On Wed, May 2, 2018 at 1:56 PM Josh Luthman <[email protected]> wrote: > Right pretty sure Chuck removed the ethernet issues with the newer > revision cards. My issue, though, is the units will lose power for > anywhere from a moment (so they simply power cycle) to 30 minutes. > > > 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> > > On Wed, May 2, 2018 at 12:38 PM, George Skorup <[email protected]> > wrote: > >> 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 >> <https://maps.google.com/?q=1100+Wayne+St+%0D%0A++++++++++++++Suite+1337+%0D%0A++++++++++++++Troy,+OH+45373&entry=gmail&source=g> >> Suite 1337 >> <https://maps.google.com/?q=1100+Wayne+St+%0D%0A++++++++++++++Suite+1337+%0D%0A++++++++++++++Troy,+OH+45373&entry=gmail&source=g> >> Troy, OH 45373 >> <https://maps.google.com/?q=1100+Wayne+St+%0D%0A++++++++++++++Suite+1337+%0D%0A++++++++++++++Troy,+OH+45373&entry=gmail&source=g> >> >> On Mon, Apr 30, 2018 at 6:00 PM, Forrest Christian (List Account) < >> [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]> wrote: >>> >>>> I've got two of these with problems: >>>> 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/ >>>> >>>> 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> >>>> >>>> <https://maps.google.com/?q=1100+Wayne+St+%0D%0A+++++++++++++++++++++++++++++++++++Suite+1337+%0D%0A+++++++++++++++++++++++++++++++++++Troy,+OH%0D%0A++++++++++++++++++++++++++++++++++++45373&entry=gmail&source=g>Suite >>>> 1337 >>>> <https://maps.google.com/?q=1100+Wayne+St+Suite+1337+Troy,+OH+45373&entry=gmail&source=g> >>>> >>>> <https://maps.google.com/?q=1100+Wayne+St+%0D%0A+++++++++++++++++++++++++++++++++++Suite+1337+%0D%0A+++++++++++++++++++++++++++++++++++Troy,+OH%0D%0A++++++++++++++++++++++++++++++++++++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] | http://www.packetflux.com >>> <http://www.linkedin.com/in/fwchristian> >>> <http://facebook.com/packetflux> <http://twitter.com/@packetflux> >>> >>> >> >> > -- Phil Philip J. Rankin, CEO Wireless Telecommunications, Corp. A division of; Mobilcom Wireless Services PO Box 24 Pittsburg, KS 66762 620-231-8188
