A11115400J164001839 Custom OEM Subassembly Product Description

Overview

A11115400J164001839 is a full OEM drawing/configuration serial number without public standard catalog datasheet. It belongs to project-locked legacy spare, generally a signal conditioning board, analog input interface PCB, backplane adapter or auxiliary conversion subassembly for turbomachinery monitoring racks, gas/steam turbine Mark VI / Mark VIe control systems, generator protection cabinets and power plant auxiliary skids. It can only replace the identical unit on the original host equipment.

Features

This assembly integrates filtering, galvanic isolation and signal scaling circuits defined by OEM drawing A11115400J164001839. It converts raw analog signals from field transmitters, vibration sensors or CT/PT secondary signals into standardized signal for the main turbine controller. A11115400J164001839 has built-in hardware self-diagnosis for open circuit, short circuit and signal out-of-range alarm. It suppresses ground loop noise and high-frequency interference under high-vibration power plant cabinet environments. Channel definition, signal range, calibration curve and firmware version are uniquely bound to this full part number. Conformal coating (if specified) protects the PCB against humidity, dust and oil mist.

Specs

• Full reference part number: A11115400J164001839

• Type: Custom OEM analog signal conditioning / interface subassembly

• Power supply, channel quantity and signal range: Follow OEM machine drawing

• Mounting: Rack slot / DIN rail / backplate screw mount inside control cabinet

• Status: Legacy project spare, no universal public datasheet

• Replacement rule: Full part number and drawing revision must match exactly; different revisions cannot be interchanged

Principle

A11115400J164001839 receives raw process signals from field sensors. Onboard isolation and filter circuits separate the field side and control backplane, perform amplification, scaling and compensation, then send standardized process signals to the main controller. The monitoring circuit continuously checks channel integrity and reports diagnostic status to the host control system for alarm and fault logging once anomalies are detected.

Applications

Commonly deployed on gas turbine, steam turbine and combined cycle power plant monitoring racks, generator auxiliary control cabinets and industrial process safety monitoring systems. A11115400J164001839 fits turbine analog monitoring loop overhaul and spare replacement of this OEM signal conditioning subassembly.

Installation & Maintenance Notes

Follow OEM service drawing A11115400J164001839 for replacement. Apply ESD protection before handling the PCB. Record all terminal wiring mapping before disassembly. After replacement, complete channel signal calibration and diagnostic fault verification. Back up controller configuration, alarm thresholds and interlock logic before swap. Confirm the full part number A11115400J164001839 matches perfectly.