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KJ3242X1-FA1

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Emerson KJ3242X1-FA1 is a DeltaV termination block for a redundant M-series FOUNDATION Fieldbus H1 card pair.
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Technical specifications for KJ3242X1-FA1

  • Manufacturer:
    Emerson
  • Part Number:
    KJ3242X1-FA1
  • Product Family:
    DeltaV
  • Product Type:
    DeltaV Redundant H1 Fieldbus Card Termination Block
  • Stock:
    1
  • Product Type:
    DeltaV Redundant H1 Fieldbus Card Termination Block
  • Network:
    FOUNDATION Fieldbus H1
  • Architecture:
    DeltaV M-series redundant I/O
  • Card Scope:
    Used with a redundant H1 interface-card pair
  • Tariff Code:
    Please confirm the destination before shipping
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Redundant Pair H1 Data Flow Service Scope Applications

Features:

  • Less field-wiring disturbance: The documented H1 segment landing remains fixed during normal interface-card service.
  • Faster availability recovery: Pair status gives maintenance a direct way to see whether standby protection is ready again.
  • Richer device context: Digital values, condition and diagnostic information reach DeltaV through the H1 relationship.
KJ3242X1-FA1 is the field-wiring termination component for a redundant DeltaV M-series FOUNDATION Fieldbus H1 interface pair.

The instrument cables terminate once, while two electronic positions provide alternate paths between those segments and DeltaV.

This arrangement separates field-network construction from interface-card maintenance, but the block, carrier and paired cards still form one coordinated I/O resource.

Apter Power can help confirm the paired cards, carrier and segment design for the Emerson KJ3242X1-FA1 DeltaV Redundant H1 Fieldbus Card Termination Block before quotation.
Emerson KJ3242X1-FA1 DeltaV Redundant H1 Fieldbus Card Termination Block Manuals,Datasheets,Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Common field connection: Both H1 card positions reach the same instrument segments through one termination block.
  • Coordinated health state: DeltaV monitors the two electronics as an availability pair and identifies their current roles.
  • Role transfer: When the active interface is unavailable, the standby path assumes communication without changing conductor destinations.
  • Visible transition: Status and event records show which electronic path is serving the connected segment.
  • Multi-drop communication: Several smart instruments share a scheduled digital segment rather than separate analog home runs.
  • Process and status together: Control variables, device condition and diagnostic information travel through the same interface.
  • Distributed execution: Supported function blocks can execute in field devices or on the interface card within the engineered macrocycle.
  • Scheduling discipline: Deterministic communication depends on the configured device set and function-block timing, not merely on electrical connection.
  • Termination-only component: The product preserves the field conductors; the active and standby H1 cards remain separate service items.
  • Protected association: Function keys and the documented port map keep each segment tied to its intended interface position.
  • Card-change continuity: Electronic work can proceed without moving sound segment wiring when the retained block is verified.
  • Evidence-led restoration: Port status, pair health and device communication are checked separately before redundancy is declared restored.
  • Redundant H1 interfaces: Provides the field landing for a matched active-and-standby M-series H1 card arrangement.
  • Multi-device H1 segments: Connects smart field instruments that share scheduled digital communication on one segment.
  • Card-resident Fieldbus control: Supports H1 strategies whose function blocks execute in devices or on the interface card.
  • DeltaV device maintenance: Carries supported device status and diagnostics into DeltaV and AMS workflows.
Description
KJ3242X1-FA1 is the shared field-wiring interface for a redundant pair of DeltaV M-series FOUNDATION Fieldbus H1 cards. It keeps both electronic positions connected to the same instrument segments so DeltaV can transfer interface duty without asking maintenance to rebuild the field-side network.

The practical advantage of KJ3242X1-FA1 is continuity: critical smart instruments can remain on an engineered digital segment while an interface-card fault or planned card service is handled through the redundant architecture. The terminal block supports that architecture but is not a substitute for the two H1 cards.
Technical notes
Use KJ3242X1-FA1 only after confirming a redundant M-series H1 card arrangement. Provide a fieldbus power supply for every segment and terminate both ends of each segment. Follow the applicable hazardous-area installation procedure before disturbing field wiring or replacing either card in the redundant pair, and preserve the recorded segment-to-port assignments.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Will the redundant cards used with KJ3242X1-FA1 keep an H1 segment online if its cable or external fieldbus power fails?
No. Card redundancy protects the electronic interface path, not the shared segment cable, power conditioner or field wiring. Engineer those common resources separately and diagnose them before treating a loss of both paths as two card failures.
Can the standby-card ports associated with KJ3242X1-FA1 be configured as extra simplex H1 segments to increase capacity?
No. The second card mirrors the working interface as part of the redundant pair; it is not spare independent port capacity. Add another engineered H1 interface when more segments are required.
More smart instruments will be added to a port wired through KJ3242X1-FA1. Is staying below sixteen devices sufficient approval?
No. Sixteen per port is a maximum framework, not a design target. Recalculate device power demand, intrinsic-safety constraints where applicable, communication schedule and cable design before accepting the expanded segment.
Only one H1 port connected through KJ3242X1-FA1 is intermittent while the other port remains stable. Should both interface cards be replaced?
No. Use the affected port status and segment diagnostics to isolate its cable, devices and wiring before condemning the shared card pair. A port-specific fault pattern points first to that segment, not automatically to both electronics.
A third-party H1 device matches the electrical segment connected through KJ3242X1-FA1. Is that enough to add it to DeltaV?
No. Confirm that the device is registered for FOUNDATION Fieldbus and supported for the intended DeltaV integration, then verify its device description, power demand and function-block use. Electrical connection alone does not establish usable control and diagnostics.
A control function will be moved from a field device onto the H1 interface card used with KJ3242X1-FA1. Can the existing schedule be assumed to remain valid?
No. Recalculate and validate the Fieldbus macrocycle after changing where function blocks execute. The redundant wiring path protects interface availability, but it does not remove the engineering limits of the segment communication schedule.

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