68-pin connector on BNC-2090

Can either of the 68-pin connectors on the BNC - 2090 be used for input?

The 68-pin connectors essentially feedthrough the BNC-2090 and the BNC channels are tied to these pins in parallel. This document explains this in a little more detail:
http://digital.ni.com/public.nsf/websearch/FDE04C8A1E4481B486257199005D71A7?OpenDocument
So you do have access to those pins on the front and the back of the 2090. You just have to be careful that you don't double-drive the same line.
Garrett H
National Instruments

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How to count TTL pulse by DAQ through BNC 2090?

I'm trying to count the TTL pulse from a APD by DAQ. There are some very nice discussions about this issue in this board. However, I am a novice and not sure about the hardware connection. The signal from APD is delievered out through a BNC cable and I'm trying to deliever this signal to DAQ through BNC 2090. I tried just simply connect the BNC cable to ACH0 and tried running the vi's, such as "Count_Edges.vi" and "Count_Events.vi". But I got no counts. I noticed that both these vis are actually reading signal from PFI port. That could explain why I got not counts.
So now the problem is how should I connect my signal in a BNC cable to the DAQ and have the counting working? Thank you for your help.

Hi Opal,
Here is what you should do for the hardware connections with these devices:
- connect your external signal to the BNC-2090
- connect the 68 pin connector on the BNC-2090 to the 68 pin connector on your DAQ board. You should have a 68 to 68 pin cable for this.
That is all that is involved with the hardware connections. After this, you should be able to read your signal. Here is the link to a helpful DAQ manual with in depth getting started information: DAQ Getting Started Guide. I hope that you find this information helfpul.
Regards,
Hal L.

Compatibility between BNC-2090 and PXI-6541

Can we use BNC-2090 terminal with HS-DIO PXI-6541 ?
John Doe

Hello,
As it said in the BNC-2090 documentation :
BNC-2090 – A shielded, rack-mountable adapter with 22 signallabeled
BNC connectors and 28 spring terminal blocks to simplify
connections to your I/O signals. The BNC-2090 includes component
locations for passive signal conditioning and connects to any 68-pin
M Series, S Series, E Series, or B Series DAQ device.
So your card isn't a DAQ card but a HS-DIO card, so it doesn't appear in the supported cards list.
So it shouldn't be compatible.
Please contact your commercial contact at NI France for more informations.
Regards,
Pierre R...
Certified LabVIEW Developer

Using PFI1-PFI9 on BNC-2090 to trigger recording on a PCI-MIO-16-XE-50

Hi there,
I've got another question about triggering using the BNC-2090. Now I can get an output of a particular digital line from the DIO-96 I'm using using a ribbon connector connected to CB-50 Connector block. This connector block has individual line outputs, so is it possible to take one of these individual lines, plug it into PFI1-PFI9 of the digital connection area of the BNC-2090 and have the PCI-MIO-16-XE-50 use the appropriate digital PFI line as a trigger? I ask this because I assume the default trigger line whey I click "Use external trigger" in NIDAQ Tools for Igor Pro is PFI0, so I was wondering if there's a way to change that. Thanks a lot!
Arul Thangavel

Arul,
Yes, you can connect the dio line of the dio-96 to any of the PFI lines that are located in the pinout of the bnc-2090. The default line to be used for triggering an acquisition is PFI0,but you can modify that.
In LabVIEW, you can select the proper PFI line by configuring it in the "AI Start.VI", or by using the "AI Trigger Config.VI" before using the latter VI.
In LW/CVI, you can also select the proper PFI line by configuring it with the "DAQ_Config" function call and with the "Select Signal" function call.
Hope this information is helpful.
L Aguila
Applications Engineer
National Instruments

Strange voltage observed in NI BNC 2090

Hi all, I have a BNC 2090 and AT-MIO-16O-2 DAQ board. I am recently
(starting this morning) experiencing strange voltage readings from the
ACH1, 2,3,4and 5. The voltage input from ACH0 is about -.2V; and range
from -1 to -3 in other channels. These happens even when nothing is
plugged into the BNC other than the its connection to the DAQ in the
computer.
any suggestion on what might be happening?
Roshan.

This is actually very common. When nothing is connected to the pins the voltage will charge up on the leads. Sense the lines are not connected to anything and the voltage has no where to go the lines will normally completely saturate the capacitors on the board.
This is not a bad thing and it should not affect your measurements, if you do not scan the channels that are not connected. If you are worried about the unused floating signals, you can wire the unused inputs to ground.
If you are performing measurements and notice that the inputs are floating you should check your grounding methods. In general use RSE for floating sources, NRSE and DIFF for grounded signal sources. If you want to use NRSE or DIFF on a floating signal you will need to add a 10-
100kOhm bias resistor from the negative lead to AIGND to reference the signal. Refer to this KB for more help.
http://digital.ni.com/public.nsf/websearch/DF70FCE03D397BFE86256A3700780FFA?OpenDocument
I hope this helps,
Joshua

Floating voltage in BNC 2090, PCI 6024E

Hi experts, I have a single ended connection on a BNC 2090 connected to PCI 6024E board. However, when I leave it connected(without any input) I see that the voltage gradually increases to +10V. Even when I input a signal, I see that the 10V forms a baseline, which hinders any measurement. Is this some sort of grounding problem? Kindly post any helpful thoughts on this matter. thanks. Roshan.

Roshan,
I believe that the 2090 has a switch for each channel which configures the inputs for either Single Ended configuration (AI channel is read with respect to your 6024's Analog Input Ground) or Differnetial configuration (AI channel reads signal on BNC connector differentially). Ensure that the terminal configuration you have programmed for you channel matches the terminal configuration selected by the switch on the 2090. If you do not make any explicit setting, the 6024 will default to differential mode.
I hope this helps,
Dan

Bnc 2090 offset and other errors

I have a bnc 2090 plugged into a pci 6070e. The BNC is currently plugged into a DC variable power supply. Right now, when I change the voltage on the power supply, the other channels reflect this change even though it is only plugged into one channel. I have read about ghosting and even when I lower the sampling rate, the problem is not fixed. There is also an offset that is showing up on the MAX test panels and in my VI. This offset steadily decreases and seems to arbitrarily change. Whats going on here?

About the offset another point, I assume you use a measurment on one coax connector (+ and - in one connector), in that case your switch should be set to RSE.
In MAX this should be set as well (and in your VI) instead of the default differential measurement.
Ton
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Nederlandse LabVIEW user groep www.lvug.nl
My LabVIEW Ideas
LabVIEW, programming like it should be!

Can I use a SH68-68EPM cable to connect a PXI-6704 with a BNC-2090?

Hi,
I was wondering if I could use a SH68-68-EPM cable to connect a PXI-6704 (sitting in a PXI-1002 Chassis and talking to my (Windows 7) PC via a PCI-8331) with a BNC-2090-box.The manual suggests to use a D1-cable but maybe it is possible to still get the analog outputs from the BNC-box although the cable is different?
Thanks for your help!

Hi cars10,
The BNC-2090 is not compatible with the NI 6704 due to pin mapping. You can use BNC connections via the CA-1000 or use a card from the analog output series family with the BNC-2090A or BNC-2110 as described in the user manual.
Regards,
h_baker
National Instruments
Applications Engineer
Digital Multimeter Resources

How can i use my iPad 2 as a display via the 30 pin connector ?

i want to use my ipad as a display from a range of devises like my video camer, computer and dvd player. The ipad outputs its display, so is there a way of using the 30 pin connector to input video?

Hi there,
At this time you cannot use your iPad as a display like you describe.
However, you can buy the extra Camera Connection Kit, to import video and pictures from some camera's and SD Cards.
I urge you to submit feedback to Apple:
iPad feedback
Nathan

TS2634 I bought a composite AV cable with 30 pin connector at a proper apple store for my ipad 2 which no longer works now i have updated to ios7 - please advise how to make this work ?

I bought a composite AV cable with 30 pin connector at a proper apple store for my ipad 2 which no longer works now i have updated to ios7 - please advise how to make this work ?

I have the same problem.
Two similar discussions:
https://discussions.apple.com/message/23081658#23081658
https://discussions.apple.com/message/23281391#23281391
I have not yet seen any official response to the question: "Is the Apple AV Composite cable fully supported with 30pin connector devices upgraded with iOS7 - specifically ? - eg. iPad 2, iPhone 4, iPhone 4s"
If it is not currently supported is that then due to a bug / oversight and in that case is it something that will be fixed in the near future?
Please let us know what feedback you got from asking Apple support.

My 30-pin dock is connected to my lightning to 30-pin connector which is connected to my iPod touch 5g. But my iPod will only charge, and will not play music through my dock.

My 30-pin dock is connected to my lightning to 30-pin connector which is connected to my iPod touch 5g. But my iPod will only charge, and will not play music through my dock, only through the iPod's internal speaker. Help please!

Have you tried resetting both the iPod and dock? To reset the iPod, press and hold the Sleep/Wake and Home buttons together long enough for the Apple logo to appear.
To reset the dock, unplug it and plug it back in.
B-rock

Lightning to 30 pin connector not charging my nano from my dock

Is it just me, or does the Apple Lightning to 30 pin connector not pass charge correctly?
I bought a new iPod Nano a few weeks ago, not realising I would be getting one of the new Lightning connector ones, so when I ordered my iPad from Apple I also bought a Lightning to 30 pin connector so that I can properly use my JBL dock (which is quite old, bought it with my old 5th Gen iPod). Although it's great that it connects and allows me to control the iPod with the remote control and is a **** of a lot neater than dangling it by a cable from the headphone jack to the RCA input on the dock, I'm getting really frustrated by the fact that I'm not getting any charge being passed through to the iPod from the dock. This was one of the best things about having a dock, not only could I play my music with a good quality sound from the speakers, I could also play it all day long without worrying about the battery consumption as it was being charged at the same time. Now, if I've been using the iPod at the gym through the week, I find that I'm having to take the iPod off the dock and charge via a wall charger or my laptop - the latter allowing me to rever to the old way of hooking the iPod to the dock via headphone jack. It's really annoying that I've spent so much money on something that doesn't do everything I'd expected of it. I'm wondering if it's faulty or if it's the age of the dock - which I haven't used with an iPod for about 5 years!
Has anyone else had this problem?

Have you tried resetting the dock by removing it from power? What about resetting the iPod Touch? To do this, press and hold both the Sleep/Wake and Home buttons together long enough for the Apple logo to appear.
B-rock

New iPad with retina display with 30 pin connector mirroring to TV with dvi adapter problems after software update

Hi. Good day to everyone my New iPad with retina display 30 pin connector will not mirror to TV even with divi adapter after software update. Adapter works fine. Or is it a software glitch with IOS 7.04? I've tried resetting and reconnecting nothing seems to work.

That's one of the weird things.. it recognizes it maybe 10% of the time. And usually, only after I do the two-button reset. Problem is.. since it won't charge above 2%, anytime I try to do a restore or anything like that using iTunes, my device shuts off and I lose whatever progress I'd made.
So, an update... after reading through a bunch of similar complaints (there are literally 1000's of them so there's NO WAY this isn't somehow ios7 related, thanks a lot APPLE ) I decided to try a restore in recovery mode. After 3 hours and several disconnections... I ended up having to just set it up as a new iPad, as the restore did nothing. Weirdly though... as I was doing the restore in recovery mode.. I noticed I'd gotten up to a 10% charge.. higher than it's been since September, so after setting it up as a new device, I turned it off and plugged it in using the wall charger. 2 hours later and I was up to 38%. Still not great, as my iPad, before ios7 could've fully charged twice in the amount of time it took for me to now get 28% more of a charge. And that's with a fully cleaned out device.. so that really ***** and I'm now more confused than ever.
But I'm gonna leave it overnight charging and see what I come up with tomorrow. Sadly, when I paid $600 for it in February, I never expected to have to play "wait and see" with it...

Dual 30-pin connector

Is there way to connect more than 1 accessory to an iPad? I've got a MIDI adapter used with an app, and I'd like to output the display from the iPad to a monitor (using the VGA adapter) at the same time.
If it's not possible to connect 2 30-pin accessories, is there another way to get the video output to a monitor that might work? Thanks!

Tried a google search. I was at least expecting something saying that it wasn't possible, but maybe my google foo isn't working well today I did see an Apple HDMI adapter with a 2nd 30 pin connector built in (for charging), but I was hoping to be able to use a VGA adapter.
It does seem like there's no dual 30 pin connector. That's why I asked about any other options - maybe a bluetooth video adapter or something.
Thanks!
Nathan

30 pin connector to vga connectivity

my 4 th generation ipod can be used with 30 pin connector to vga for display

Try http://store.apple.com/us/product/MC552ZM/B/apple-vga-adapter

68-pin connector on BNC-2090

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