Data Acquisition

pixel is subjected to a mathematical operation thatgroups it with its nearest neighbors and calculatesits value accordingly.Counter data registerThe 8-bit register of a (8254 chip) timer/counterthat corresponds to one of the two bytes in thecounter’s output latch for read operations andcount register for write operations.Counter loading The transfer of a count from an 8254timer/counter’s count register to its countingelement.Counter/timer triggerCounter/timersCRCCrossed pinningCrossoverCrosstalkCSMA/CDCurrent inputsCurrent loopOn-board counter/timer circuitry can be set totrigger data acquisition at a user-selectable rateand for a particular length of time.User-accessible circuitry built into many of theDAS boards that can be used for event counting orfrequency measurement.Cyclic redundancy check. A basic error checkingmechanism using a polynomial algorithm basedon the content of the frame and then matched withthe result that is performed by the transmitterand included in a field appended to the frame.Also referred to as CRC-16 or CRC-CCITTWiring configuration that allows two DTE orDCE devices to communicate. Essentially itinvolves connecting pin 2 to pin 3 of the twodevices.In communications, a conductor that runsthrough the cable and connects to a different pinnumber at each end.A situation where a signal from acommunication’s channel interferes with anassociated channel's signals.Carrier sense multiple access/collision detection.When two stations transmit at the same time on alocal area network, they both cease transmissionand signal that a collision has occurred. Each thenretries again after waiting for a random timeperiod.A board rated for current inputs can accept andconvert analog current levels directly, withoutconversion to voltage.A communication method that allows data to betransmitted over a longer distance with a highernoise immunity level than with the standard RS-