ABB NDBU-95C 64008366 DDCS Branching Unit

SKU NDBU-95C 64008366

In stock

12-month warranty
Free returns within 30 days

Manufacturer: ABB
Product No.: NDBU-95C 64008366
Country of origin:Sweden,Finland
Product Type: DDCS Branching Unit
Barcode: 8537101190
Payment: T/T, Western Union
Weight: 550g
Dimensions: 145 mm x 170 mm x 35 mm (W x H x D
Shipping port: Xiamen
Warranty: 12 months

The ABB NDBU-95C (Product ID: 64008366) is a star connection branching unit designed for industrial drive communication networks utilizing the DDCS (Distributed Drives Communication System) protocol. It functions as a 9-channel branching component to enable reliable optical link communication and network expansion within multi-drive control architectures, such as the ACS800 and ACS880 series drive systems.

Features

9-Channel Architecture: Equipped with 9 optical channels (CH0 to CH8) plus a master channel (MSTR) connection to handle multi-point data distribution.
High-Speed Optical Components: Features 10 MBd optical transmitters and receivers across all master and branch channels.
Flexible Media Support: Compatible with Plastic Optical Fibre (POF) and Hard Clad Silica (HCS) cabling systems depending on transmission distance requirements.
Configurable Transmission Current: Supports adjustable transmitter power settings (Short, Medium, Long) via board configuration to match optical fiber link length.
Hardware Address Selection: Integrates 8-position DIP switch (S1) enabling hardware-level node address definition within a structured star hierarchy.

Applications

ACS800 Multi-Drive Systems: Used as a key network distribution and spare part component for ACS800-107 configuration variants.
ACS880 Multi-Drive Platforms: Integrates within complex control topologies involving ACS880-207 drive architectures.
DCS Thyristor Power Converters: Coordinates optical signal distribution when interfacing with DC drive power converter segments.
DriveWindow Communication Networks: Acts as the central hardware node linking host commissioning computers running DriveWindow software to downstream drive controllers.

Technical Specifications

Parameter	Value
Manufacturer	ABB
Model	NDBU-95C
Product ID	64008366
ABB Type Designation	NDBU-95
Product Type	Star connection branching unit (DDCS Branching Unit)
Optical Component Rate	10 MBd (All channels CH0...CH8 and MSTR)
Communication Protocol	DDCS protocol
Input Power Supply	24 V DC
Channels Available	9 channels
Country of Origin	Finland (FI) / Sweden (SE)
Product Net Weight	0.55 kg
Dimensions (W x H x D)	145 mm x 170 mm x 35 mm

Installation Guidelines

Address Hierarchy Configuration: Prior to network operation, set the unit node address via the onboard DIP switch S1. The branching unit physically positioned closest to the control PC must be configured with the highest address number within the allowed address range of 124 to 76.
Optical Link Setting Rules: Maintain uniform component speeds across the physical link network. Mixing 5 MBd and 10 MBd optical modules on the same transmission loop is strictly prohibited to prevent data loss or signal degradation.
Unused Channel Management: To maximize internal resource efficiency and prevent layout interference, select the DISABLED software/hardware jumper option for all unused optical channels.
Fiber Optic Length Boundaries:
- Plastic Optical Fibre (POF): Max 30 m for ACS drives; max 20 m for DCS drive structures.
- Hard Clad Silica (HCS): Max 200 m for ACS configurations; max 50 m for DCS installations.

FAQ

Can 5 MBd and 10 MBd fiber optic channels be mixed on the device?

No. Mixing 5 MBd and 10 MBd optical components across the same communication framework is not possible, as both ends of the transmission path must be uniform.

What is the allowed network hardware address range for the device?

The allowed branching unit addresses configured via DIP switch S1 span from 76 to 124, with address 124 serving as the factory default layout setting.

What action should be taken for channels on the board that are not in use?

If a particular channel on the board is not selected or utilized in the current network network configuration, its transmitter setting must be switched to DISABLED.

View all FAQs →

1 / 3

Quantity

Call sales Contact

Shipping & Returns

Global Express Shipping

Standard Delivery: 4–6 business days via DHL, FedEx, and UPS.
Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
Worldwide Coverage: Serving over 150 countries.

Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our technical warranty.

Reviews

1 3

Only 5 item(s) left in stock

Quantity

View full details

Global Express Shipping

Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).

For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Color pattern	White
Country of origin	Sweden Finland
Power source	DC Power