Description
The KL4502X1-FA1 (also associated with part number 12P5449x032 or SE4604T03 variants) is a Top CHARM Column Terminator manufactured by Emerson Process Management for the DeltaV Distributed Control System (DCS) platform. It is designed to terminate the local bus communication and power distribution lines at the top end of a CHARM (Characteristic Modular Key) I/O carrier column, ensuring signal integrity across the backplane.
Technical Specifications
| Parameter | Value |
| Manufacturer | Emerson Electric Co. (Emerson Process Management) |
| Product Series | DeltaV DCS / CHARM I/O Platform |
| Part Number (MPN) | KL4502X1-FA1 |
| Module Type | Top CHARM Column Terminator / Bus Terminator |
| System Compatibility | Emerson DeltaV CHARMs baseplates, carrier rails, and local bus assemblies |
| Enclosure Protection | IP20 standard (intended for internal mounting within a protective industrial control cabinet or marshalling panel) |
Supply Terms & Commercial Details
- Availability: Sourced through industrial automation surplus channels, specialized DeltaV spare parts distributors, and legacy hardware providers.
- Lead Time: In-stock hardware typically ships within 1 to 3 business days.
- Warranty: 12-month standard supplier replacement or repair warranty covering functional hardware defects.
- Condition: Available as New Surplus, Factory Open Box, or Fully Tested Refurbished (verify specific revision levels and packaging with your vendor prior to purchase).
- Pricing Note: Price is subject to market availability; contact your vendor for a firm quote.
Engineering & Integration Guidance
When installing or replacing the KL4502X1-FA1 terminator in a DeltaV CHARM cabinet layout, observe the following parameters:
- Column Termination Placement: This module must be securely mounted at the uppermost position of a CHARM carrier column to properly terminate the local bus impedance and prevent data reflection errors across the I/O loop.
- Mechanical Seating: Ensure the unit snaps cleanly onto the carrier rail and engages the backplane pins correctly without bending or placing undue stress on the local bus connector.
- System Power Safety: Always de-energize the marshalling panel power distribution feed before installing or removing bus terminators to prevent electrical faults or communication anomalies on active loops.
Frequently Asked Questions
What system platform uses the KL4502X1-FA1?
This component is built specifically for the Emerson DeltaV Distributed Control System, acting as the designated top terminator for CHARM (Characteristic Modular I/O) carrier columns.
What is the primary function of a column terminator?
It provides electrical termination for the local bus communication and power architecture running vertically along a CHARM carrier column, ensuring error-free data transmission between the I/O blocks and the local controller node.
Can a CHARM column operate without the top terminator?
No. Omitting the column terminator can cause signal reflection, communication packet corruption, or systemic bus errors along the CHARM carrier assembly.
