Foxboro Invensys FBM219 Terminal Assembly P0917LH

Configured for field signal termination in I/A Series distributed control systems, the Foxboro Invensys FBM219 P0917LH (FBM219 Termination Assembly) provides direct physical/electrical execution for high-density interface connectivity between field devices and I/O modules.

Suffix Breakdown & Model Matrix

The P0917LH designation identifies this specific termination assembly model as the hardware interface component for the FBM219 module series. It serves as a passive wiring junction, ensuring signal continuity without internal active processing circuitry.

Hardware Specifications

Process Control: HART Loop Protocol and Connectivity

The P0917LH assembly acts as the physical bridge for signal loops, maintaining the integrity required for 4-20 mA HART loop protocol communications. By providing a fixed-point terminal arrangement, the assembly ensures low-impedance signal paths, which is mandatory for effective digital data transmission over analog loops. The termination architecture supports rigorous channel-to-channel isolation by maintaining physical separation between loop circuits, thereby preventing cross-talk and limiting the propagation of electrical transients into the I/O baseplate.

Frequently Asked Questions

Q: Is this assembly compatible with redundant I/O configurations?

A: Yes, the P0917LH termination assembly is designed to support the mechanical and electrical requirements of standard I/A Series redundant I/O module setups.

Q: Does this component require firmware or configuration software?

A: No. The P0917LH is a passive hardware component and contains no firmware, internal logic, or configurable settings. It functions strictly as a field-to-module wiring interface.

Field Installation Guidelines

• Mounting: Secure the assembly onto the designated rail within the I/O cabinet. Ensure the ribbon cable connector is fully seated and latched to the corresponding I/O module.
• Grounding: Terminate all cable shields to the common ground bar integrated within the P0917LH assembly. This creates a low-resistance path to instrument ground, which is necessary for noise suppression in HART-enabled loops.
• Wiring: Verify that all screw terminal connections are tightened to the specified torque. Use appropriate wire management to ensure that high-voltage lines are kept separate from low-voltage HART signal loops to prevent induced electrical noise.