Product Details
The Honeywell 51196694-928, also cataloged as the 51196694-928 PS/2 Trackball Upgrade Board, operates as a dedicated hardware component for converting legacy cursor control signals into standard PS/2 interface protocols within Honeywell operator station consoles. It processes trackball X/Y movement and push-button selection inputs to deliver stable serial cursor positioning.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 51196694-928 |
| Brand | Honeywell |
| Origin | USA |
| Operating Temp | 0 to 50 deg C |
| Power Consumption | Low-Voltage DC (Console Supply) |
| Interface Type | PS/2 Cursor-Control Interface |
| Board Type | Industrial-Grade Printed Circuit Board |
| Signal Input | Trackball Movement and Selection Signals |
| System Compatibility | Honeywell Operator Stations and Trackball Assemblies |
FOUNDATION Fieldbus & Operator Console Signal Processing
The 51196694-928 board processes low-voltage discrete optical or contact pulses generated by the trackball mechanism, converting them into noise-immune PS/2 serial packets for the console controller. When installed in human-machine interface (HMI) nodes monitoring broad DCS assets—including FOUNDATION Fieldbus and Profibus PA segments—the assembly isolates internal console control logic from physical static discharge and ground potential variations, preventing cursor jitter during active plant operations.
Frequently Asked Questions
Q: Can the 51196694-928 upgrade board be installed while the operator console is powered on?
A: Hot-plugging the PS/2 interface board is not supported; console power must be isolated prior to removing the trackball housing and connecting the board assembly.
Q: Does the 51196694-928 require external software driver installation on the Honeywell operator station?
A: The board provides direct hardware-level PS/2 protocol translation, utilizing standard operating system peripheral drivers native to the console architecture.
Field Installation Guidelines
- Power down the operator station console and disconnect primary DC power feeds before opening the trackball assembly housing.
- Observe proper ESD protection procedures, including wearing a grounded wrist strap, when handling the bare printed circuit board.
- Align the 51196694-928 board with internal mounting standoffs and secure it using non-conductive or specified retention hardware.
- Verify that the trackball mechanical sensor harness and PS/2 output cable connectors are fully seated and latched before restoring console power.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
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