Model Identification

• DF9200674: Base part number (MRC backplane I/O board)

• D0: Hardware revision (optimized for stability)

• JANCD-MBB02-1: Official Yaskawa model designation

• Compatibility: Direct replacement for DF9200674-B0/C0; pin-compatible with JANCD-MBB02-2.

Key Specifications

• Input Voltage: 5 V DC ±5%

• Power Distribution: Multi-channel 5 V / 24 V DC to slots

• Signal Type: TTL level, differential signal routing

• Power Consumption: ~30 W

• Dimensions: ~250 × 180 × 30 mm

• Weight: ~0.6 kg

• Operating Temp: 0 °C to +55 °C

• Protection: IP20 (cabinet installation)

Interfaces & Connectors

• CN1–CN4: Servo/encoder signal interfaces

• CN5: Main power input

• Slots: 4–6 positions for servo/IO cards

Core Functions

• Distributes stable 5 V / 24 V power to all onboard modules.

• Routes control, differential, and encoder signals system-wide.

• Acts as the central data exchange hub between the main controller and sub-boards.

• Integrates basic circuit protection against voltage/current anomalies.

Applications

• Motoman MRC / XRC robot controllers

• Multi-axis servo control systems

• Replacement/upgrade of legacy backplane boards

  Need me to list compatible replacement boards and common fault codes for this backplane?