KAD/DSI/003 monitors the status of up to 24 D/E discrete channels. The first eight input channels have alternative functions as programmable counters.
Features
- 24 differential-ended discrete bi-level input channels
- Eight independent 32-bit counters with six different operating modes
- 9 μs internal resolution
- FIFO based time tagging
- Resettable counters
- Independent channel settings for threshold,hysteresis, falling/rising edge detection
Applications
- Engine speed measurement
- Slow slew rate, high noise applications
- Timestamping of events
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The NET/SWI/101 is an 8-port airborne Ethernet switch designed for operating in harsh environments. Each port is configurable for 10BaseT, 100BaseTX, and 1000BaseT link speeds or auto-negotiate over copper wiring, supporting straight-through or cross-over cables.
KAD/DSI/003 24 Channel Digital Module
The KAD/DSI/003 monitors the status (high/low) of up to 24 D/E discrete channels. The first eight input channels have alternative functions as programmable counters, of which four can be configured as resettable event counters. The remaining 16 channels can be used to trigger time-tagged events.
All 24 discrete signals are sampled simultaneously and can be read as a 24-bit word (16-bit + 8-bit or 12-bit + 12-bit). The KAD/DSI/003 uses 24 separate 14-bit A/Ds operating continuously at 111 ksps to sample each input so the threshold and hysteresis can be programmed separately for each channel.
The first eight counters (channels 0 to 7) can be programmed as PERIOD, FREQUENCY, EVENTS_SINCE_LAST_READ, EVENTS, or ELAPSED time. The range of each counter is programmable as is the threshold, hysteresis sensitivity to the rising/falling edge, and roll-over. If the counter uses more than 16 bits, they are treated as two words.
The remaining 16 channels (8 to 23) control the time tagging to the 8K FIFO. For each input, time tagging can be triggered by a rising and/or falling edge, or neither (when the channel is disabled). Every time a trigger occurs, a 64-bit word is written to the FIFO consisting of the status of the 16 inputs (after the change) and the Binary Coded Decimal (BCD) time of when the event happened (up to 23 hours 59 minutes 59.99 9999 seconds).
Aerospace Instrumentation Brochure
Modern aerospace instrumentation systems can be highly complex, and it can be difficult to know how to meet program needs. It’s not unusual for requirements to change during a campaign and cause significant delays, and data must be captured reliably no matter what – otherwise expensive additional flights will be needed or months of program data could be lost. Read our brochure to learn how you can reduce your risk with commercial off-the-shelf (COTS) solutions.