52 AXN Quick Start Kit User Guide (BK/0045 | 9 Aug. 2021)
3
Filtered packetizers
The AXN/ABM/401 allows you to define rules to control which words are packetized. Rules to allow only specific
words into packetizer packets or to block specific words from being packetized are supported through the
Packetizer Filter Mode settings, Block and Pass.
Packetizer filtering works by applying user-defined rules to the packetizer on each channel.
Block means that messages that match defined filter rules are blocked and all other messages are passed
through.
Pass means that messages that match defined filter rules are passed through and all other messages are blocked.
To block specific messages from making it into the packetizer stream for that channel, and allow all others, set the
rule to Block and define rules on that channel.
To pass specific messages into the packetizer stream for that channel, and block all others, set the rule to Pass
and define rules on that channel.
Up to 1024 packetizer filter rules can be defined per bus.
Rules for which words are allowed or blocked are covered in the rules definition section of “Cherry Picking or
parsing of specific ARINC-429 words” on page 52.
Cherry Picking or parsing of specific ARINC-429 words
24,574 ARINC-429 word definitions, based on combinations Label/SDI/SSM can be defined, across all channels,
to define specific ARINC-429 words of interest.
Refer to the following to define rules for cherry picking or parsing of specific ARINC-429 words.
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