KAD/MBM/101 1 channel Dual Redundant Bus Monitor

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KAD/MBM/101 1 channel Dual Redundant Bus Monitor
Product Sheet
Product Sheet

KAD/MBM/101 is a MIL-STD-1553 dual redundant bus monitor which combines the capabilities of a coherent message parser w/ the flexibility of a iNET-X.


  • Monitors one dual redundant MIL-STD-1553 bus using Direct or Transformer coupled operation
  • Coherently parses traffic and tags for up to 1,024 parser ID; parser ID based on 16-bit commands; RT-RT messages treated as one parser ID
  • Aperiodic transmission of packetized MIL-STD-1553 messages including tags as iNET-X payload structure per channel
  • Optional recording of messages with time-out status reply


  • MIL-STD-1553 traffic monitoring and recording
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KAD/MBM/101 1 channel Dual Redundant Bus Monitor

The KAD/MBM/101 is a MIL-STD-1553 dual redundant bus monitor which combines the capabilities of a coherent message parser, with the flexibility of an iNet-X packetizer. It also provides message counting and extensive error detection functions on a single module. The KAD/MBM/101's parser triple buffers up to 1,024 messages (including one catchall), and their associated tags, in buffers up to 43 words wide. The Info tag associated with each message has a stale bit (message read before), a skipped bit (buffer overwritten), and an empty bit (no message received since power-up)—all of which can be included as discrete parameters for transmission or logging.

Moreover, all MIL-STD-1553 messages are encapsulated as iNET-X parser-aligned payload structures. These parser-aligned packets may be transmitted aperiodically to optimize network bandwidth utilization and memory usage when recording the MIL-STD-1553 bus. Aperiodic packet transmission ensures that no messages are lost since the KAM-500 controller oversamples the KAD/MBM/101 and generates only a packet for transmission when the buffer is not empty, that is when at least one new message has been captured from the bus. Two message counters increment on receipt of a valid message. The REPORT word has a fresh error flag with a 6-bit error code to indicate the type of error caught and the bus on which it occurred. Errors are also time-stamped and recorded in the iNET-X packet.


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.

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