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NTAI04 is an ABB analog input termination unit used with the documented Bailey Infi 90 platform. Selection must match the complete product identity, hardware execution, connected assemblies and approved system configuration.
Before replacing NTAI04, compare the supplied nameplate, revision, connectors or terminals and installed position with the original equipment record. After installation, review diagnostics and complete the approved functional checks before service.
ABB NTAI04 documentation and reference links.
Important Notice: Every linked document must identify the listed model or its documented family. Confirm the complete order code, hardware revision and installed-system requirements before replacement.
NTAI04 is documented for the field-side analog input panel. The unit connects plant analog signals to a compatible rack input module.
Apply NTAI04 only with the NTAI04 module-and-cable termination arrangement; confirm analog input module, approved cable, terminal numbering, shields and signal type.
Record the installed arrangement before service, then verify loop polarity, continuity, scaling and channel readings after replacement.
NTAI04 is documented as a legacy analog input termination unit at the field-side analog input panel. The unit connects plant analog signals to a compatible rack input module. Source: ABB analog input termination documentation.
Before installing NTAI04, confirm analog input module, approved cable, terminal numbering, shields and signal type. After installation, verify loop polarity, continuity, scaling and channel readings before releasing the equipment.