search for: multimeter

...harge 77%) > 16.9 Volts - (indicated on shutdown, discharging battery.charge 51%%) > 16.6 Volts - (indicated on shutdown, discharging battery.charge 33%) > > -- Shutdown Occurred at < 3% -- Battery Removed and Tested -- > > 12.06 Volts (actual where charge was <= 3%, multimeter measurement) Apparently I wasn't clear enough with my instructions. We need the measured battery voltage under load here and the value the UPS is reporting at the same time. There probably won't be much of a difference for the float (fully charged) voltage, but there will be when i...

...PC devices reports: "unacceptable utility voltage rate of change". I believe it has something to do with input voltage fluctuating too fast maybe even beneath or over the input voltage thresholds. Should I worry about this? should I measure input voltage? (I suppose I'd need more than multimeter readings. Maybe an oscilloscope or a multimeter that can record statistics? - I'm no expert in this field...) battery.alarm.threshold : 0 battery.charge : 100.0 battery.charge.restart : 00 battery.date : 09/02/08 battery.packs : 000 battery.runtime : 960 battery.runtime.low : 120...

I have taken out the batteries and measured them with a multimeter. They put out 13V (they are rated 12V 9Ah). Putting them back again and disconnecting the UPS from the mains it is kept on, powering all the connected devices. The shutdowns only occur when the UPS is being monitored. Are you sure it's a battery problem? Do UPS perform further tests when the...

...ith everything powered off, I extracted the original batteries to > check them and measure the voltage. The batteries are Leoch DJW12-9.0 > with one of them at 12.57 V and the other at 12.64 V (measured without > load after the discharge). That's... surprisingly well, assuming your multimeter indicates correct values. I would have expected values well below 12V > > And this morning there was again a short power failure (not more than > 30 minutes, because the router connected to the battery power from the > UPS did hold up). With batteries charged up to 91% the UPS sup...

All I apologize if this is slightly off topic, but I'm in the process of trying to get NUT working and I've discovered the need for a serial port probe that is native db9 - native db9 (the thought of hanging a probe plus two db9-db25 adapters plus a cable on a UPS bothers me greatly). I'm not looking for anything fancy, just a little gender changer with a buncha LEDs on it.

nut 2.7.2 linux 3.18.7 CyberPower CP1350PFCLCD The LCD shows the same for input and output, my multimeter also matches the input voltage. But nut is giving me different numbers. How do I debug this? input.voltage: 122.0 output.voltage: 138.0 I still need to check what it does on battery and what the other readings are. But the voltage stuck out at me.

On Dec 2, 2018, at 7:55 PM, raul <raulvior.bcn at gmail.com> wrote: > > I have taken out the batteries and measured them with a multimeter. They put out 13V (they are rated 12V 9Ah). What sort of load did you have in parallel with the multimeter? (This is why Wolfy mentioned the light bulb: if the battery has developed excessive internal resistance, it will show proper voltages when tested open-circuit, but will read lower with a loa...

...ted the original batteries to check > > them and measure the voltage. The batteries are Leoch DJW12-9.0 with one > of > > them at 12.57 V and the other at 12.64 V (measured without load after the > > discharge). > > > > That's... surprisingly well, assuming your multimeter indicates correct > > values. I would have expected values well below 12V > > > > > > > > > > And this morning there was again a short power failure (not more than 30 > > minutes, because the router connected to the battery power from the UPS > did >...

...d by default matches the pins, but maybe, and perhaps maybe your alcatel did. There will be a tx pair and an rx pair and you need to make sure they connect to the rx and tx pairs on the digium preferably with the same polarity. If you are getting no signal I would think its that. You can use a multimeter to check for voltage on the pins. Once you get that sorted another catch maybe timing. You will need to take E1 timing from one or other of the Telco's, with one as the primary source. If they for some reason aren't synced you will get errors every so often Good luck Cheers Duncan &g...

...g: - Low Battery setpoint reached --> issue computer shutdown - Shutdown commands sent --> computer starts shutting down - At some point, /etc/killpower is sent before computer fully shuts down - Computer shuts down - A few seconds later, I hear a clunk in the UPS (UPS powers off... I used a multimeter to verify no AC voltage on the UPS output outlets) - Another few seconds later, I hear another clunk in the UPS --> computer starts to power on --> AC voltage is present on the UPS output outlets - A few seconds later the battery in the UPS depletes --> computer dies while booting up The...

No progress has been made: cable is UPS - PC 6 - 3 7 - 5 9 - 2 for ./blazer_ser -DDDDD -a infosec 0.000000 send_to_all: SETINFO driver.parameter.port "/dev/ttyS1" 0.000323 debug level is '5' 0.103068 send_to_all: SETINFO device.type "ups" 0.103104 send_to_all: SETINFO driver.version "2.7.3" 0.103118 send_to_all: SETINFO

On Oct 31, 2020, at 8:30 PM, Gene Heskett <gheskett at shentel.net> wrote: > >> battery.voltage: 16.0 > At that voltage, 5 of the 12 cells are shorted >> battery.voltage.nominal: 24 The 16.0 is a scaled version of the fixed (bogus) 24.0 V reading, similar to this unit: https://networkupstools.org/ddl/Cyber_Power_Systems/CP1500PFCLCD.html I think we even

Hi There, i have a strange problem with a fenton powerpal 660. When you switch off the power to the UPS (from the wall), the server (IBM xSeries 203) attached to it dies...However, if you unplug the cable from the server to the UPS and plug it back in again (with the power still out to the UPS), the server starts up again (set to power up after a power failure) and runs with no issues. I have

...tches > the pins, but maybe, and perhaps maybe your alcatel did. There will be a tx > pair and an rx pair and you need to make sure they connect to the rx and tx > pairs on the digium preferably with the same polarity. If you are getting > no signal I would think its that. You can use a multimeter to check for > voltage on the pins. > I would doubt it's the pinout but it's possible. I have tried several cables (cross-over, straight-through, E1) and both didn't work but surprisingly, they do on the other RAD modem that comes to the same PBX. > > Once you get that so...

...0.103687 send: 'Q1' > 1.105456 read: timeout > 1.105823 blazer_status: short reply Unfortunately, I don't think there is a safe way (in software) to determine whether the UPS is not receiving the signal, or whether the PC is not receiving the reply. If you have a multimeter, you could check pin 9 on the UPS relative to pin 4/7 to see if it is being driven negative. -- Charles Lepple clepple at gmail

[please use reply-all to include the list. thanks!] > On Nov 26, 2015, at 9:47 AM, Weedy <weedy2887 at gmail.com> wrote: > > nut 2.7.2 > linux 3.18.7 > CyberPower CP1350PFCLCD > > The LCD shows the same for input and output, my multimeter also > matches the input voltage. > But nut is giving me different numbers. How do I debug this? > > input.voltage: 122.0 > output.voltage: 138.0 > > I still need to check what it does on battery and what the other > readings are. But the voltage stuck out at me. A very s...

...: if you had two 12V lead-acid batteries in series, and someone gave you many readings of 27.0V, 26.0V, 25.0V, and 24.0V over time, would you be suspicious that you weren't seeing, say, 26.5V at some point? Rick's batteries may be low, but I would be surprised if he actually saw 16.0V on a multimeter. I wish we had a better way to flag these bogus values in NUT, but we're still collecting the data in order to programmatically figure out which models really do have a voltage sensor hooked up to USB, and which ones don't. For now, the next best thing is annotating the DDL entries from us...

...d then when the caller hangs up, asterisk treats it as a new call. I have tested this with asterisk from cvs HEAD as of today, and the "stable 1.0 version". zaptel driver is cvs head. Also as of today. I have also tested with both callprogress = yes and no, but no luck. I plugged in my multimeter into the phoneline to see what actually happens here. This is how a call is signalled in sweden: 1) Line polarity reverses This is to mark the beginning of the CallerID 2) CallerID is sent using DTMF Don't know the system used, but I remember seeing a post about it in the archives. 2)...

Hi; I'm trying to connect a TDM400P with an FXS module to a Valcom V-9940 Paging adaptor. This port on the TDM400P was connected to a 2500 Set and was working I just re-connected it to the Valcom (which is known to work on a Telco POTS line) and its not picking up. The Valcom docs say it need a minimum of 75 Volts at 20-30 Hz to recognize a call... So the question is what ring voltage

RJ11 Plantronics 1 3 2 4 3 1 4 2 RJ11 Pin 1 is on the left when looking at the contact points. Plantronics Pin 1 is on the left when looking at the contacts (through the plastic sheild) My multimeter battery is low, so YMMV, but: Pin's 1,4 are connected with ~160 ohms Pin's 2,3 are connected with ~1400 ohms On my Plantronics head set. Chad -----Original Message----- From: asterisk-users-bounces@lists.digium.com [mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of Wilson Pick...