Honeywell 51305759-100 OEP/IKB Interface Card – Operator Interface Bridge

Brand Honeywell

Model Honeywell 51305759-100

Product Overview

The Honeywell 51305776-100 is an OEP/IKB Interface Module Assembly engineered for the Honeywell TDC 3000 Distributed Control System platform. As a critical interface component within the Total Control Network, the 51305776-100 serves as the communication bridge connecting the Operator Entry Panel (OEP) to the Integrated Keyboard (IKB), enabling seamless data exchange between operator workstations and process control equipment. This module assembly contains the 51305759-100 printed wiring assembly (PWA), forming a complete replacement unit for legacy Honeywell DCS installations.

Within the TDC 3000 architecture, the 51305776-100 occupies a dedicated position in the operator console and facilitates the physical and electrical connection between the operator interface and the keyboard input system. The module supports both hardware revision E and firmware revision F configurations, with additional manufacturing markings including EN P2011017 and Rev E 17W02. The 51305759-100 PWA contained within this assembly serves as the core interface board, handling signal processing and data transfer functions essential for operator interaction with the control system.

The 51305776-100 is positioned as a legacy spare component for Honeywell HPM, TDC 3000, and TCN systems. The module is typically available as refurbished or new-surplus stock, as original manufacturing has been discontinued. Its role in maintaining operator console functionality makes the 51305776-100 a high-priority spare for facilities operating Honeywell legacy DCS platforms, where the loss of operator interface capability directly impacts process control operations.

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Description

Technical Specifications

Parameter Name	Parameter Value
Product Model	51305776-100
Component PWA	51305759-100
Manufacturer	Honeywell
Product Type	OEP/IKB Interface Module Assembly
Compatible Systems	TDC 3000, TCN, HPM, PlantScape
Hardware Revision	HW Rev E
Firmware Revision	FW Rev F
Operating Temperature	-20°C to +60°C (standard); -40°C to +85°C (extended)
Power Supply	24 VDC (system backplane)
Communication Interface	DB9 serial ports, PS/2 keyboard port
Dimensions (Module)	10.2 cm × 6.7 cm × 4.0 cm
Weight	120 g (module assembly)
Origin	USA / Sweden (varies by batch)

Main Features and Advantages

Interface Bridging Between OEP and IKB: The primary function of the 51305776-100 is to facilitate communication between the Operator Entry Panel and Integrated Keyboard within Honeywell TDC 3000 systems. This bridging capability ensures that operator inputs from the keyboard are reliably transmitted to the control system, while process data and system feedback are routed back to the operator interface. The 51305776-100 maintains continuous communication uptime across legacy architectures through a direct backplane power interface.

Integrated PWA Design: The 51305776-100 assembly contains the 51305759-100 PWA as its core interface board, providing a complete replacement solution rather than requiring separate procurement of individual components. This integrated design simplifies maintenance procedures, as a single 51305776-100 swap restores full OEP/IKB interface functionality. The 51305759-100 PWA includes dedicated filtering circuitry to suppress electromagnetic interference and stabilize data frames during simultaneous console read/write operations.

Revision Compatibility and Legacy Support: The 51305776-100 is specifically configured for hardware revision E and firmware revision F, ensuring compatibility with specific TDC 3000 system configurations. The module includes channel-to-channel isolation parameters that separate the OEP operator system bus from the IKB engineering side, preventing ground loop currents from degrading data integrity. This isolation is particularly important in industrial environments where electrical noise and ground potential differences can compromise signal quality.

Compact and Serviceable Design: Weighing only 120 grams, the 51305776-100 features a compact form factor that integrates easily into space-constrained control cabinets. The module’s plug-and-play maintenance approach allows it to serve as a drop-in replacement for failed units, minimizing downtime during system repairs. The 51305776-100 connects via DB9 serial ports and PS/2 keyboard connectors, providing straightforward installation without requiring extensive reconfiguration.