KL2101X1-BB1 is the Emerson DeltaV CHARM I/O Card 2, commonly identified in system ordering as SE6504. It belongs to the electronic-marshalling architecture used to manage CHARM field-I/O assemblies.

The card is certified for specified Zone 2 and Class I Division 2 installations. The complete BB1 execution, carrier, power, network, CHARM baseplate and DeltaV configuration must be evaluated together.

• Provides the CIOC2 control and communication function for the assigned CHARM I/O assembly.
• Supports DeltaV electronic marshalling with hardware and channel configuration maintained in the system project.
• Operates from the documented 24 VDC supply boundary.
• Supports hazardous-location installation when all approval conditions are met.
• Requires no user calibration and contains no user-serviceable parts.

• Record the KL2101X1-BB1 label, SE6504 assembly context, carrier position, CHARM baseplates, power and network connections.
• Back up the DeltaV hardware and channel configuration before maintenance.
• Do not insert or remove the card while energized in a hazardous location unless the area is known to be nonhazardous and the approved procedure permits it.
• Inspect connectors, carrier, grounding, power distribution and environmental condition before energization.
• Verify card diagnostics, redundancy where used, network communication and all assigned CHARM channels.

• DeltaV electronic marshalling using CHARM field I/O.
• CIOC2 service in qualified hazardous-location control cabinets.
• Like-for-like replacement retaining the complete BB1 hardware identity.
• System maintenance requiring project, carrier and channel traceability.