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FAQS
Q: What is the input impedance of your A/D boards?
A: Most of our A/D boards have input impedance greater than 25 Mega ohms.
Q: I would like to know which of your boards use DMA for data transfer, and is it single or dual-channel mode?
A: Several of our A/D boards offer data transfer capabilities in either single or dual DMA modes. Our detailed Hardware Comparison Charts provide a convenient way for you to select the right product.
Q: Will I lose any accuracy when using a CYEXP panel?
A: No, CYEXP panels do not degrade the signal, but they do slow down the acquisition process due to software switching of the multiplexers. It is not practical to use the CYRDAS series cards in DMA mode when you are using a CYEXP panel.
Q: Can you boot from a Disk-On-Chip?
A: Yes, all of our solid state disks -- SRAM and Disk-On-Chips -- allow you to boot the computer from a Disk-On-Chip (D.O.C).
Q: Can your Disk-On-Chip products be used like a standard floppy drive?
A: Yes, they can. The Disk-On-Chip (D.O.C) modules can be configured as a bootable A:\ drive. Because there are no mechanical parts in the D.O.C modules, your boot time will be a lot faster.
Q: I would like to collect data using a single A/D board. I have 8 thermocouples, 4 RTD s, and 2 analog inputs of -5V. I would like to acquire and import this data into my database. Which board should I use?
A: What you need is a an A/D card that allows direct sensor interfacing, or provides an accessory panel that will offer signal conditioning and cold-junction compensation. Selecting a board will depend on whether you want to use a particular software package, or write your own program. (Our detailed Hardware Comparison Charts show which off-the-shelf software packages support each board.)
Q: Do you sell hardware for use with portable PCs?
A: Yes! Several cards only require +5V power, and therefore work in any ISA-bus slot or portable expansion chassis. We have many products for PCMCIA slots -- call for info.
Q: How can I find out about new products and software revisions?
A: You are always welcome to call us via our toll-free number. Our technical staff will have all the latest information on hand. You can also check out our website for new releases and product updates, and can refer to the FTP section of our website to download the latest software upgrades.
Q: You have a wide selection of Data Acquisition Boards, how do I know which one is right for my application?
A: You first need to decide if you have an available ISA or PCI slot in your PC. Next you would determine how fast a card you will need. You will need to sample at least twice the rate of the highest frequency components of the signal you are measuring to avoid aliasing. The maximum sampling rate we list for each board is the total combined rate for all the channels. Next, select a card that has the correct input voltage so that you will get the maximum resolution of your digitized signal. Our Application Engineers are also available to assist you with the board selection.
Q: I just installed an ISA-Bus Data Acquisition card in my system and am having trouble getting the software to talk to the card. What could be wrong?
A: You might have an Address or IRQ conflict with another card that is installed in your PC. The most common conflict is with a NIC card. Our cards are defaulted at 300 Hex and this is also a common setting for Network Cards. Try setting your Data Acquisition Card to a different Base Address.
Q: I noticed that some of your computers list a NEMA 4 or NEMA 12 rating. What do these ratings mean?
A: NEMA 4 enclosures are designed for indoor & outdoor use to provide protection from windblown dust and rain, splashing water, and hose down. NEMA 12 enclosures are designed for indoor use to provide protection from dust and non-corrosive liquids.
Q: Will I still be able to use my mouse and keyboard on my system if I have a touchscreen display?
A: Yes, you will. The touchscreen will occupy one of the serial ports on your PC. You will still be able to use either a serial or PS/2 mouse and also the PS/2 keyboard without any conflicts.
Q: I notice that most of your passive backplanes have two CPU slots. Does this mean that I can install two CPU Cards in one chassis?
A: Most of our standard backplanes have 2 PICMG slots. Only 1 CPU card can be used. The other unused slot becomes an available ISA slot. We do offer other backplanes that are segmented. These backplanes will support up to 4 CPU cards installed in one system. Contact our Applications Engineering Department about a segmented chassis solution for your application.