KAD/UBM/105 - 12 channel Serial Bus Monitor Parser

12 channels RS-232, RS-422, or RS-485 high data rate up to 5 Mbps serial bus parser/packetizer

The KAD/UBM/105 is used to monitor up to 12 RS-232/422/485 channels. The module can parse (coherently extract specific bytes) and/or packetize (insert messages in packets for Ethernet transmission) each channel at the same time.

The signal type (RS-232/422/485), bits per word, and parity are programmable on a channel-by-channel basis.

In the parser, a total of up to 511 complete messages are triple buffered so that the stale indication is message-wide. Each message can be up to 1,024 characters (bytes) long (including start and stop characters). Each message is tagged to 0.1ms resolution; a message is considered found when a start sequence of up to eight specific bytes is received. The end-of-message delimiter is determined by a user-defined stop character or after a specific number of words are received. A message is not updated if any sequence is incorrect.

Independently of the parser, an iNET-X packet stream is generated for each channel. All received bytes are encapsulated in an iNET-X parser-aligned payload structure. A programmable gap time allows the module to split the incoming bytes into shorter timestamped sequences. A block header attached to each sequence stores the channel index, length, and the time of reception of each message. These parser-aligned packets may be transmitted aperiodically to optimize network bandwidth utilization and memory usage when recording serial traffic.