Basic Information

• Part Number: DF8203498‑C0 (Rev. C0)

• Alternate Markings: JANCD‑1003E, JANCD‑IO03E

• Manufacturer: Yaskawa Electric (Japan)

• Type: I/O Board / System Backplane

• Status: Obsolete; available as used / refurbished / new surplus

• Application: Yasnac J300/J500 CNC & Motoman XRC robot controllers

Specifications

• Power: 5 V DC, ±12 V DC, 24 V DC (controller supply)

• Signal Level: TTL / 24 V DC digital I/O

• Connectors: Multiple ribbon / edge connectors for CPU, I/O, and peripherals

• Mounting: Rack‑mount in CNC / XRC controller cabinet

• Weight: ~1.2 kg

• Operating Temp: 0 °C to +55 °C

Key Functions

• System Backplane: Interconnects CPU, memory, and I/O boards in the controller

• Digital I/O Interface: Processes machine/robot input/output signals (24 V DC)

• Signal Routing: Distributes power and communication signals between modules

• Safety & Interlocks: Routes emergency stop and safety circuit signals

Compatibility

• Fits: Yasnac J300/J500 CNC, Motoman XRC robots (UP6, HP20, etc.)

• Works with:

  • CPU: JANCD‑CP11 (DF8203078‑B0/D0)

  • Memory: JANCD‑MM20 (DF8203490‑A0)

  • I/O: JANCD‑1003D (DF8203297‑A0)

• Not compatible: NX100, DX100, FS100 or later controllers

Common Issues & Replacement

• Typical Failures: Connector wear, trace corrosion, power distribution faults

• Replacement: Match DF8203498‑C0, JANCD‑1003E, and Rev. C0

• Handling: Use ESD protection; inspect connectors and clean edge contacts