GE A20B-2900-0430/04C Daughter Board

This daughter board adds specialized functions to GE Fanuc CNC main boards. It handles additional signal processing and memory expansion for complex machine tools. You can plug this unit directly into the designated motherboard connector.

Technical Specifications

Parameter	Details
Brand	GE Fanuc
Model	GE A20B-2900-0430/04C
Category	Daughter Board (CNC Expansion Card)
Dimensions (H x W x D)	30 mm x 100 mm x 140 mm
Weight	0.12 kg
Board Type	Multi-layer PCB with surface-mount components
Number of Components	6 ICs + 12 capacitors + 8 resistors + 1 PCB
Primary ICs	2 custom ASICs + 1 buffer chip + 3 logic gates
Interface Type	96-pin DIN connector (motherboard side)
Memory on Board	128 KB SRAM (battery-backed)
Additional Logic	32 macrocells for glue logic functions
Power Supply	5 V DC from motherboard via connector
Current Draw (5V)	180 mA typical
Built-in Energy Storage	330 µF capacitor array for signal stability
Data Retention Backup	Supercapacitor holds SRAM for 72 hours
Operating Temperature	0°C to 60°C
Protection Features	Conformal coating for humidity protection
Mounting Method	Stacking connector + 2 retaining screws
Compatibility	Fanuc Series 0, 15, 16, 18 CNC systems

Detailed Feature Overview

This daughter board carries two custom ASICs for dedicated processing tasks. It adds 128 KB of battery-backed SRAM for data storage. Consequently, your CNC gains extra memory for complex part programs.

A 330 µF capacitor array stabilizes the power supply during operation. The supercapacitor retains SRAM data for up to 72 hours without main power. You will find 96-pin DIN connector for reliable motherboard attachment.

Conformal coating protects the board from humidity and light contamination. This coating prevents short circuits in machine shop environments. Two retaining screws secure the board against vibration loosening.

Installation and Compatibility

GE A20B-2900-0430/04C mounts onto specific Fanuc CNC main boards. Align the 96-pin connector carefully before pressing down. Secure the board with both retaining screws for vibration resistance.