GE A03B-0801-C009 | I/O Base Unit | 8 Slots for CNC I/O Modules

The GE A03B-0801-C009 serves as the foundation for I/O expansion in CNC systems. This base unit accepts discrete I/O modules for machine tool interface connectivity. It provides mounting slots for up to 8 I/O modules in a single assembly. Weighing only 0.95 kg, the GE A03B-0801-C009 mounts inside CNC control cabinets. Its dimensions measure 280 mm x 160 mm x 45 mm.

Slot Configuration and Backplane Features

The GE features 8 module slots arranged in a single row for easy access. Each slot includes a 32-pin connector for signal and power transmission to I/O modules. The backplane provides automatic addressing for plug-and-play module installation. Moreover, the GE A03B-0801-C009 includes keying features to prevent incorrect module insertion. Consequently, you can mix input, output, and specialty modules without configuration switches.

Power Distribution and Energy Storage

The GE A03B-0801-C009 distributes 5 V DC and 24 V DC power to all installed I/O modules. This base unit includes filter capacitors for noise reduction on the power rails. It draws 50 mA from the 5 V DC backplane supply for its logic circuits. The GE A03B-0801-C009 requires an external 24 V DC power supply for field I/O power distribution. Therefore, the base unit contains no battery and needs zero periodic maintenance.

Technical Specifications Table

Below are the complete technical parameters for engineers and procurement teams:

Parameter	Specification
Full Product Name	GE A03B-0801-C009
Product Category	CNC I/O Base Unit
Number of Module Slots	8
Slot Pitch	25 mm
Connector Type per Slot	32-pin female (keyed)
Backplane Signals	5 V DC, 24 V DC, I/O data bus, addressing
Automatic Addressing	Yes (hardware-based slot detection)
Module Keying	Yes (polarized connectors)
Maximum I/O Modules Supported	8
Maximum Discrete I/O per Base	128 (16 per slot typical)
5 V DC Distribution	2 A maximum total
24 V DC Distribution	4 A maximum total (field I/O power)
Current Consumption (5V DC)	50 mA for backplane logic
Filter Capacitance	1,000 µF (5 V rail), 470 µF (24 V rail)
Energy Storage	No battery (filter capacitors only)
Number of Components	1 backplane PCB + 8 module connectors + 2 power terminals + metal chassis
Net Weight	0.95 kg (950 grams)
Gross Weight (packaged)	1.2 kg
Dimensions (W x H x D)	280 mm x 160 mm x 45 mm
Mounting Type	4 x M5 screws (panel mount)
Wire Size (Power Terminals)	AWG 18 to AWG 12 (0.75 mm² to 4 mm²)
Operating Temperature	0°C to +50°C
Storage Temperature	-20°C to +70°C
Humidity Tolerance	10% to 90% non-condensing
Certifications	CE, UL

Compatible Modules and Installation Details

The GE A03B-0801-C009 works with standard CNC I/O modules from the same series. This includes DC input modules, relay output modules, and analog I/O modules. The base unit mounts inside the control cabinet using four M5 screws. Connect the 24 V DC field power supply to the designated terminals on the right side. The GE A03B-0801-C009 requires a separate 5 V DC backplane power supply for logic operation. Install I/O modules by sliding them into the slot until the connector fully engages. This base unit suits CNC milling machines, lathes, and machining centers. Thus, the GE A03B-0801-C009 provides a flexible I/O platform for precision machine tool applications.