Technical Specifications Model: NDBU‑95C Part Number: 64008366 Optical Channel: 1 input, 9 output DDCS optical ports Communication Rate: 10 MBd Power Supply: 24 VDC ±10 % Channel Indicator: Independent LED for each channel Mounting: 35 mm DIN‑rail mounting Operating Temperature: 0 ℃ to +55 ℃ Storage Temperature: ‑25 ℃ to +70 ℃ Relative Humidity: 5‑95 %, non‑condensing Protection Class: IP20 Certifications: CE
Functional Features PCB board applied anti‑corrosion conformal coating for harsh industrial cabinet atmosphere. Active regeneration of DDCS optical signal for star‑topology multidrive communication network. Nine independent output channels, single‑channel fault does not interfere operation of other channels. Real‑time LED status indication for each optical channel signal reception. Supports full DDCS communication protocol compatible with ABB ACS600 and ACS800 drive series. DIN‑rail modular installation for convenient cabinet layout and maintenance replacement. On‑board power‑supply abnormality self‑diagnosis function.
Application Scenarios Spare‑part replacement for NDBU‑95C 64008366 in multidrive cabinet under high‑humidity or corrosive environment. DDCS optical bus star‑network construction for large‑capacity multi‑motor drive system of chemical plant and paper mill. Hardware renewal for old ABB multidrive control cabinet.
Installation Requirements Install NDBU‑95C onto 35 mm standard DIN‑rail inside drive cabinet, maintain horizontal mounting orientation. Wire 24 VDC power‑supply to screw‑type power terminal block. Connect master‑station optical fiber jumper to input port, connect each slave‑station optical fiber to corresponding output ports. Keep ventilation openings unobstructed, reserve heat‑dissipation clearance around module. Ambient operating temperature shall keep within 0 ℃ ~ +55 ℃ without condensation. Check each channel LED status and whole‑network DDCS communication after power‑on.v
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