What is Breakout Cable?

What is Breakout Cable?

• 2025-04-14 09:32:35
• by Admin

Breakout Cable is a special cable used to split a high-density, high-rate network interface into multiple lower-rate interfaces.

Breakout Cable facilitates the connection of fiber optics directly to end devices or to other fiber optic devices in a cabling system.

It is used to optimize equipment port utilization and simplify cabling structures, and is commonly used in data centers and high-performance computing environments.

Key features of Breakout Cable:

Splits a single high-speed port (e.g., 40G/100G) into multiple low-speed ports (e.g., 4x10G or 4x25G), or consolidates multiple individual cables into a single high-density connection.

Structure and type of Breakout Cable:

• Fiber Optic Breakout Cable: A single fiber optic cable contains multiple fibers (e.g., 12 cores), with a high-density connector (e.g., MPO/MTP) at one end, and split into multiple single-core connectors (e.g., LC/SC) at the other end.
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• Breakout Cable: Copper cable (e.g. DAC direct connect copper cable) with QSFP+/QSFP28 connectors at one end and split into multiple SFP+/SFP28 connectors at the other end.

The main application scenarios of Breakout Cable:

• Fiber Optic Network Cabling: For occasions where optical fiber needs to be connected to multiple end devices or different locations.
• Indoor and outdoor CWDM networks: for example, for bandwidth upgrading of existing CWDM (Coarse Wavelength Division Multiplexing) networks to support multi-channel fiber optic transmission.
• Data Center: Used to connect servers, switches and other equipment to support high-speed data transmission.
• Pre-terminated components: Commonly used in fiber optic networks that require rapid deployment to reduce on-site installation time.

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