Description
Foxboro P0903CW
Technical Specifications
- Module Type: Annunciator/Numeric Keyboard
- LED/Switch Matrix: 32 LED/switch pairs arranged in an 8-column by 4-row matrix
- Numeric Keypad: 16-section numeric keypad with one NUM LOCK LED
- Labeling: Supports the insertion of eight polyester labels for custom identification
Functional Features
- Audio Alarm Differentiation: Features multiple audio pitches to indicate different system alarm and process alarm priorities.
- External Audio Support: Includes an external audio output jack for attaching customer-supplied amplifiers and speakers for noisy environments.
- Lamp Test Function: Incorporates a dedicated lamp-test switch that simultaneously illuminates all LEDs to verify bulb health.
- Tactile Feedback: Keys feature raised embossed circles and positive tactile/audible feedback to assure proper switch closure.
Application Scenarios
Suitable for use with all I/A Series workstation processors in industrial automation, manufacturing, petrochemical plants, and power generation facilities where operators need to monitor alarms and input numeric data.
Performance Parameters
- Mounting Options: Free-standing or workstation/panel mounted
- Audio Output: External jack for amplified speakers
- Switch Closure: Positive tactile and audible confirmation
Material Composition
Constructed with durable industrial-grade plastics and high-quality tactile switches. Utilizes polyester labels for custom annotations and robust LED components for long-lasting illumination.
Structural Characteristics
Combines an 8×4 annunciator matrix with a dedicated 16-key numeric pad. The overlay is designed with raised embossed circles on each key, and the layout provides pockets for inserting polyester annotation labels.
Working Principle
The keyboard interfaces directly with the workstation processor. LEDs are controlled by software to be ON, OFF, or FLASHING based on process conditions. Switch closures are transmitted to the processor to invoke pre-configured displays or enter numeric data.
Installation Requirements
Can be installed as a free-standing unit or securely mounted onto a workstation panel. Requires connection to the I/A Series workstation processor via the designated interface port.
Usage Precautions
Ensure the external audio amplifier (if used) is properly matched to the output jack. Keep the polyester label pockets clean and replace labels if they become illegible. Do not use excessive force when pressing keys to maintain tactile feedback integrity.
