Key Identifiers

• Part Number: DF8203498‑B0 (Rev. B)

• Standard Label: JANCD‑1003E

• Manufacturer: Yaskawa Electric (Japan)

• Type: System Backplane / Motherboard

• Status: Obsolete (surplus/refurbished/used only)

Specifications

Electrical

• Power Distribution: +5 V, ±12 V, +24 V DC from power supply

• Bus Interface: 16‑bit parallel system bus

• Slot Count: 8–10 slots (CPU, memory, servo, I/O)

Mechanical & Environmental

• Mounting: Rack‑mounted (rear of controller cabinet)

• Operating Temp: 0 °C to +55 °C

• Cooling: Natural convection

• Dimensions (W×H×D): ~330 mm × 240 mm × 30 mm

• Weight: ~1.2–1.5 kg

Core Functions

• System Backbone: Connects CPU, memory, servo, and I/O boards via the system bus

• Power Distribution: Supplies regulated DC power to all plug‑in boards

• Signal Routing: Routes control, data, and clock signals between modules

• Mechanical Support: Provides slot mounting and alignment for all boards

Compatibility (J300/J500 & XRC)

• CPU Board: JANCD‑CP11 (DF8203078‑B0/D0)

• Memory Board: JANCD‑MM14D (DF8203830‑C0)

• Servo Control: JANCD‑CG31‑1 (DF8203626‑C0)

• Servo Amp: JANCD‑SV03B (DF8203661‑B0)

• Aux I/O: JANCD‑(DF8203751‑A0)

Applications

• Motoman XRC robot controllers (UP6, HP20, etc.)

• Yasnac J300/J500 CNC machine tools

• Legacy automation lines (spare replacement)

Maintenance & Replacement

• Handle with ESD protection

• Inspect all slot connectors for bent pins or oxidation

• Common issues: No power to slots, bus communication errors, intermittent connections

• Replace only with DF8203498‑B0 (JANCD‑1003E Rev. B)

• Power off and disconnect all cables before removal