Description
Product Description
The 51402089-100 Enhanced Peripheral Display Generator (EPDG2) interface board is designed for operator workstation nodes used in the Honeywell TDC 3000 distributed control architecture. This board acts as the hardware interface responsible for generating video output and managing multiple operator peripherals including keyboards, pointing devices, and printers.
Installed within Universal Station nodes, 51402089-100 integrates display signal generation with peripheral communication, enabling reliable interaction between the operator console and the control system. Compared with earlier EPDG hardware generations, EPDG2 improves peripheral compatibility and provides extended support for CE-compliant I/O paddle boards.
The module is engineered for continuous operation in industrial control environments and supports various legacy operator interface devices used in TDC 3000 console furniture.
Technical Specifications
| Parameter |
Specification |
| Manufacturer |
Honeywell |
| Model |
51402089-100 |
| Product Type |
Enhanced Peripheral Display Generator (EPDG2) |
| System Platform |
Honeywell TDC 3000 Universal Station |
| Primary Function |
Video signal generation and peripheral communication |
| Input Voltage |
24 VDC |
| Maximum Output Current |
5 A |
| Communication Interfaces |
RS-485, Modbus RTU |
| Peripheral Support |
Keyboard, mouse, trackball, touchscreen, printer |
| Storage Device Support |
SCSI interface for Bernoulli and Zip drives |
| Operating Temperature |
−20 °C to +70 °C |
| Storage Temperature |
−40 °C to +85 °C |
| Relative Humidity |
0–95% non-condensing |
| Weight |
1.2 kg |
| Compliance |
UL, CE, FCC |
| Manufacturing Standards |
ISO 9001, ISO 14001 |
System Integration
The 51402089-100 board operates in conjunction with dedicated I/O paddle boards mounted on the rear transition assembly. Selection depends on regulatory compliance requirements.
Compatible paddle board options include:
-
EPDGP (Non-CE) – 51404584-100
-
EPDGC-1 (CE compliant) – 51402447-100
-
EPDGC-2 (CE compliant) – 51402447-200
These transition boards provide the external connections for display signals, keyboard interface, pointing devices, and printer ports.
Key Functional Capabilities
Display Signal Generation
The module produces video signals used by Universal Station operator displays, supporting stable graphical interface output within TDC 3000 consoles.
Peripheral Device Management
Integrated controllers manage communication with keyboards, trackballs, mice, and touchscreen devices used by plant operators.
Legacy Storage Interface
SCSI support allows connection of removable storage devices such as Bernoulli and Zip drives historically used in Honeywell operator stations.
Printer Connectivity
Dedicated interface support enables report and alarm printing directly from operator stations.
Improved Hardware Compatibility
As a second-generation EPDG design, it offers broader compatibility with later-revision Universal Station hardware and CE-certified I/O boards.
Typical Applications
Process control operator consoles in Honeywell TDC 3000 systems
Refurbishment or maintenance of Universal Station workstations
Replacement of first-generation EPDG display interface boards
Legacy system upgrades requiring CE-compliant interface support
FAQ
Q: Which systems use the 51402089-100 interface board?
It is designed specifically for Universal Station nodes in Honeywell TDC 3000 distributed control systems.
Q: Can this board replace the earlier EPDG module?
Yes. In most Universal Station configurations, EPDG2 serves as a functional upgrade for earlier EPDG hardware, provided the correct paddle board is installed.
Q: Is this board compatible with Honeywell Experion systems?
No. The module was designed for the TDC 3000 platform and is not intended for modern Experion PKS architectures.
