KAD/MBM/102

The KAD/MBM/102 is a MIL-STD-1553 bus monitor, which can monitor up to four dual redundant busses. It 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/102's parser, triple buffers up to 4,095 complete messages, 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). These can be included as discreet parameters in Ethernet or PCM transmissions.

All messages are transparently added to an iNET-X parser-aligned packet and are sent aperiodically. This is achieved by oversampling the packet buffers with the Acra KAM-500 controller and silently dropping packets, which have already been sent saving bandwidth and media storage. iNET-X messages are optimized for Ethernet transmission and simultaneous storage in Wireshark Packet CAPture (PCAP) format.

The MessageCount increments on receipt of a valid message. The error word has bits (in the form of a 6-bit code) which 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.