Products Description
FANUC I/O Interface Module P/N A03B-0807-C011

Technical Specifications
Model:A03B-0807-C011
Brand:FANUC
System compatibility:2-slot I/O base interface module for FANUC Series16i,Series18i,Series21i CNC systems. Installed inside CNC electrical cabinet,used for mounting various I/O expansion cards. Widely applied on CNC lathes,vertical machining centers.
Function:I/O base rack unit. Provides hardware slot and signal bus for FANUC digital input/output expansion boards. Realizes signal exchange between CNC main controller and machine peripheral switches,sensors and solenoid valves. Supports external 24VDC I/O signal collection and output driving.
Installation:DIN rail mounting inside electric cabinet,screw terminal block for field wiring.
Interface:
‑CNC bus communication connector
‑2 expansion slots for I/O card installation
‑24VDC power terminal block
‑Digital signal wiring terminals
‑LED channel status indicators
Circuit feature:Internal bus transmission circuit,signal surge protection,over-current protection for each I/O channel.
Feature:Legacy FANUC I/O base rack,only the base unit without I/O cards. Before replacement,confirm CNC system model and matched I/O card types. Common faults:bus contact failure,power supply burnout.
Diagnostic:CNC system shows I/O communication alarm when fault occurs;LED indicators show channel working condition.
Power supply:24VDC
Protection class:IP20
Horizontal operating temperature:0℃ ~ +55℃
Storage temperature:-20℃ ~ +80℃
Relative humidity:5%‑90% non‑condensing
Vibration:Complies with machine tool industrial environmental requirement
Weight:0.62kg
Dimensions:150mm ×95mm ×42mm
Certification:CE,UL

Built‑in function
A03B-0807-C011 I/O base module serves as signal interface between FANUC CNC host and machine field components. It carries I/O expansion boards to collect sensor signals and output control signals to actuators. Widely used for CNC machine control cabinet spare‑part replacement.
Product Brief
A03B-0807-C011 belongs to FANUC A03B series I/O spare parts family,2-slot I/O base rack unit. This base does not include input/output cards. Verify CNC system and matching I/O modules before ordering. Check bus connector and 24VDC wiring during commissioning. Widely applied for CNC equipment maintenance and renovation. ESD anti‑static protection shall be followed during installation.