GE A02B-0098-C045 CRT/MDI Unit | 9" Monochrome Display

The A02B-0098-C045 functions as a combined CRT display and MDI panel for GE Fanuc CNC systems. This unit provides visual feedback of machine status and program data. It accepts operator commands through the integrated keyboard interface. Therefore, this unit enables complete manual data input for machining operations.

Technical Specifications

We engineered this CRT/MDI unit for reliable operation in machine shop environments. Its rugged metal housing protects internal components from coolant and dust. Moreover, the unit includes a bright monochrome display for clear visibility.

Parameter	Specification
Dimensions (W x H x D)	12.5 x 10.5 x 4.8 inches (318 x 267 x 122 mm)
Weight	5.4 kg (12.0 lbs)
Display Type	Monochrome CRT (Cathode Ray Tube)
Display Size	9 inches diagonal (228 mm)
Resolution	640 x 400 pixels
Keyboard Keys	65 keys including numeric, alpha, and function keys
Connector Type	2x 50-pin ribbon cable connectors
Input Voltage	24V DC from CNC power supply
Power Consumption	35 W typical
Operating Temperature	0°C to 45°C (32°F to 113°F)

Display Characteristics and Visibility

The A02B-0098-C045 features a 9-inch monochrome CRT with anti-glare treatment. This display shows 24 lines of 40 characters each for program editing. The CRT provides excellent contrast for viewing from wide angles. Consequently, operators can read machine data without adjusting their seating position.

Keyboard Layout and Input Functions

This MDI unit includes sixty-five keys organized into logical groups. Numeric keys occupy the right side for easy data entry. Alpha keys support program editing and variable name entry. Eight function keys provide one-touch access to diagnostic screens. Therefore, operators can navigate menus without memorizing complex codes.

Interface Connections and Signal Flow

The A02B-0098-C045 connects to the CNC main board via two ribbon cables. One 50-pin cable carries video signals from the CNC processor. The second 50-pin cable transmits keyboard matrix data back to the control. These cables use keyed connectors to prevent incorrect installation.

Mechanical Construction and Panel Mounting

This CRT/MDI unit features a heavy-gauge steel chassis for durability. The front panel includes a sealed membrane overlay to resist shop contaminants. Four mounting studs on the back secure the unit to the operator panel. Use M4 screws with lock washers for vibration-resistant installation.

Energy Storage and Power Requirements

The A02B-0098-C045 draws 35 watts from the 24V DC CNC power supply. It contains no battery or capacitor energy storage components whatsoever. The CRT uses electromagnetic deflection without any solid-state memory. Hence, the unit retains no data when you remove power from the system.

Installation and Handling Guidance

Mount the A02B-0098-C045 into a standard CNC operator panel cutout. Connect both 50-pin ribbon cables to their respective ports securely. Verify the video cable connects to the CRT port, not the keyboard port. Power off the CNC system completely before connecting or disconnecting this unit. Allow the CRT to warm up for 30 seconds before evaluating display quality.