FS FHD Fiber Cabling System Guide

1. FS Fiber Cabling System

As the demand for high-density, high-performance, and continuously available fiber optic cabling in modern data centers surges, traditional fiber optic cabling systems are no longer adequate. These traditional systems are time-consuming to deploy, more challenging to maintain, and make moves, adds, and changes (MAC) difficult. Conventional cabling systems often consist of components designed for specific networks, leading to a lack of flexibility and inability to meet future needs.

FS FHD fiber optic cabling systems achieve optimal maintainability and manageability. Designed to enable data centers to perform MAC operations quickly and securely, the FHD system also provides scalability to increase density as business needs evolve.

1.1 Overview

This section provides an overview of the FS Fiber Cabling System.

1.2 Benefits

1.2.1 Making Fiber Installation and MACs Work Easier

The FHD series offers a versatile solution in multiple sizes and styles for building backbones, data centers, and enterprise applications.

• Optimized Space: The FHD panel or cassette allows up to 144F LC connections in the 1U FHD enclosure.
• Versatile Solutions: It offers a versatile modular solution for patching, terminating, and splicing applications.
• Integrated Management: Cable management accessories or integrated structures enable flexible cabling during operation.
• Saving Time: The plug-n-play design provides quick connection and deployment for network applications.

1.2.2 Seamless Migration to Higher Data Rates

MTP® cable is a cost-effective alternative to time-consuming field termination, designed for high-density fiber patching in data centers requiring space saving and reduced cable management. Key features include:

• Bend Insensitive: Corning ClearCurve® and SMF-28® Ultra Fiber reduces optical loss in tight bends for slack storage and routing.
• Low Insertion Loss: High-performance MT-based US Conec MTP® connector for data center and carrier-grade applications.
• Fire Safety-Rated: Safe for use in plenum air spaces, preventing flame propagation and smoke generation.
• High Efficiency: Future updates, additions, and changes to the structured cabling are dramatically simplified.

1.2.3 Colored-Coded Components for Easy Identification

Color-coding is integral to the industry, helping to identify individual fibers, cables, and connectors. Key aspects include:

• Compliance with Standards: Ensures color consistency with industry standards when used with other manufacturers' products.
• Aesthetics and Orderliness: Creates an organized environment by color-coding components according to their functions.

Improved Maintainability: By maintaining a consistent standard, it simplifies the installation and connection of new equipment.

Reduced Cabling Errors: Prevents confusion and channel loss in data centers with multiple fiber mode cabling.

1.3 Examples of Network Cabling

The following sections illustrate how FHD Enclosures, Cassettes, Adapter Panels, Trunks, Jumpers, Harnesses, and Patch Cords are used in common data center cabling configurations.

1.3.1 Interconnect

In this configuration, a permanent link is installed between FHD Enclosures in the switch/network cabinet and the server or storage cabinets. The most common, flexible, and upgradeable FHD Fiber Cabling Solution is shown in Figure 1:

Figure 1: Interconnect Diagram Description: The diagram shows a Switch Cabinet and a Server Cabinet. In the Switch Cabinet, a Rack Mount Enclosure contains an MTP® Adapter Panel and an MTP®-LC Cassette, connected via an MTP®-LC Harness. In the Server Cabinet, a similar Rack Mount Enclosure houses an MTP®-LC Cassette, connected to the Switch Cabinet's enclosure via an MTP® Trunk. A separate LC to LC Patch Cable connects the MTP®-LC Cassette to the server equipment within the Server Cabinet.

1.3.2 Cross Connect

In this configuration, permanent links are installed between FHD Enclosures in the switch/network cabinet and server or storage cabinets, and a common cross-connect cabinet or rack. This allows any fiber from any switch port or server uplink to be routed anywhere within the data center, facilitating easy moves, adds, or changes. The most common, flexible, and upgradeable FHD Fiber Cabling Solution is shown in Figure 2:

Figure 2: Cross Connect Diagram Description: The diagram illustrates a Switch Cabinet, a Cross Connect Cabinet, and a Server Cabinet. The Switch Cabinet contains a Rack Mount Enclosure with MTP® Adapter Panel and MTP®-LC Cassette, linked by an MTP®-LC Harness. The Cross Connect Cabinet also houses Rack Mount Enclosures with MTP®-LC Cassettes. An MTP® Trunk connects the Switch Cabinet's enclosure to the Cross Connect Cabinet's enclosure. Another MTP® Trunk connects the Cross Connect Cabinet's enclosure to the Server Cabinet's enclosure, which contains a Rack Mount Enclosure with an MTP®-LC Cassette. LC to LC Patch Cables are used within the cabinets to connect to equipment.

2. FHD Series Components

The FHD series includes a range of components designed for efficient fiber management:

• FHD Enclosures: Rack mount enclosures for housing cassettes and adapter panels.
• FHD Cassettes: Modular units for fiber termination and patching.
• FHD Adapter Panels: Panels that accept various connector types for patching.
• MTP®/MPO Fiber Cables: High-density trunk and harness cables.
• Patch Cables: Standard fiber patch cords.
• Accessories: Additional components for management and protection.

2.1 FHD Fiber Enclosures

Available in 1-RU, 2-RU, and 4-RU sizes, supporting up to 144 fibers per rack unit. They can be reconfigured to accept 4-port, 8-port, or 12-port cassettes or adapter panels. The system provides a flexible and modular approach to managing fiber connections and patching, with cassettes and panels that snap in and pull out easily, simplifying installation, moves, adds, and changes. Features include detachable designs and sliding or tilt-down drawers for application flexibility.

2.2 FHD Fiber Cassettes

Available in Base-8, Base-12, and Base-24 MTP® connectors, these MTP®-LC/Conversion/Mesh cassettes are fully compatible with all FHD enclosures. Key features include:

• 0.35dB Ultra Low-loss MTP® Connectors for Longer Link Distances.
• Offered in a Wide Range of Polarity Configurations (A/AF/U).
• Interface Color-coding for Easy Fiber Type Identification.
• Snap-in Front Mount for Easy Installation into Enclosures.
• Suitable for Main, Horizontal, and Equipment Distribution Areas in Data Center Cabling.

Note: Universal Polarity are used at both ends of a Method B Trunk.

Note: Type A and AF are used as a pair in a two cassette Method A link.

2.3 FHD Adapter Panels

Available with LC/SC/ST/MDC/MTP® Connectors for employing a fiber infrastructure as you migrate to higher network speeds. Panels are fully compatible with all FHD enclosures. Key features include:

• Interface Color-coding for Easy Fiber Type Identification.
• Clear Numbering for Quick Fiber Identification.
• Tool-less Snap Installation for Easier MACs.

2.4 Cable Assemblies

Available as Patch Cords, Jumpers, Trunks, and Harnesses in various jackets and fiber types to meet any application designed to interconnect or cross-connect fiber networks within structured cabling systems. Key features include:

• Color-coded Connector Boots/Cable Jacket for Easy Identification.
• Custom Polarities and Pins Available.
• Cable Jacket Available in Riser, OFNP, and LSZH Flame Rating.
• Optical Performance Test for Normal Network Connections.

Diagram Description: Images show examples of fiber optic patch cables with different connector types and colors, illustrating the variety available.

2.5 Enclosure Accessories

Accessories include blanking adapter panels, modular panels, splice trays, and fiber slack management spools. Key items are:

• Blank Fiber Adapter Panel compatible with all FHD Series Fiber Enclosures.
• Modular Panel Hybrid Solution for Mixing Fiber and Copper Cabling.
• Fiber Optical Splice Tray supporting up to 144 fibers in a 1U FHD Enclosure.
• Management Spool for effectively managing and organizing excess fiber cable slack.

3. Fiber Migration Configuration

The FHD Cabling System facilitates easy migration from 10G to 40G, 100G, 200G, 400G, and up to 800G speeds. FS recommends using Method B polarity for single mode or multimode parallel fiber solutions. Method B (Key-Up to Key-Up array connectivity) is widely used and discussed in TIA-568-C.1, streamlining network deployment, ensuring consistent polarity, and reducing fiber network complexity.

FS offers the MTP® PRO, a gender/polarity changeable MTP® connector, to assist with polarity and gender variations. MTP® PRO allows for male/female gender or Key-Up/Key-Down or Key-Up/Key-Up MTP® trunk configurations. FS also supports customization of various connector types to meet diverse needs.

3.1 Single Mode

For 1, 10, 25, 40, 50, 100, 200, 400 Gbps Configurations

Diagram Description: This configuration shows a typical setup for single-mode fiber connections at various speeds. It involves SFP+ or QSFP+ transceivers, LC Duplex Patch Cables, MTP®-LC Cassettes, and MTP® Trunks.

• 12-fiber MTP backbone.
• Provides duplex (2 fibers) connectors for equipment.
• Universal polarity cassettes allow for the same interchangeable cassette on both ends of a Method B trunk in a fiber channel.

Supports the following modules: SFP28 25GBASE-ER/-LR-S, QSFP+ 40GBASE-LR4/-ZR4, QSFP28 50GBASE-ZR2, QSFP28 100GBASE-ZR4/-ER/-FR/-LR/LR4/CWDM4, SFPDD 100GBASE-DR/-FR/-LR, QSFP56 200GBASE-LR4/-FR4, QSFP-DD 400GBASE-FR4/-LR4/-ER4/-LR4L/-LR8.

For 40, 100, 400, 800 Gbps Configurations

Diagram Description: This configuration highlights the use of 8F MPO Jumpers and MTP®-LC to MTP® Cassettes for higher speed connections, utilizing 12-fiber MTP® Trunks.

• 12-fiber MPO backbone stays in place.
• Swap out MTP-LC cassettes for MTP-MTP conversion cassettes.
• Provides Parallel (8-fiber) connections to equipment.
• Universal polarity cassettes allow for the same interchangeable cassette on both ends of a Method B trunk in a fiber channel.

Supports the following modules: QSFP28 100GBASE-PSM4-S/-PLR4L/-PLR4, QSFP-DD 400GBASE-XDR4/-DR4/-FR, QDD-4X100G-LR, QSFP112 400GBASE-DR4/-XDR4, OSFP 400GBASE-DR4, OSFP 800GBASE-DR8/-PLR8/-XDR8.

For 40, 100, 400, 800 Gbps Configurations

Diagram Description: This configuration shows the use of MTP® Adapter Panels with 12F MTP® Jumpers and 12F MTP® Trunks, allowing for parallel 12-fiber connections.

• 12-fiber MTP Backbone stays in place.
• Swap out MTP-LC/MTP-MTP cassettes with MTP pass-thru adapter panels.
• Provides Parallel 12-fiber connections to equipment.

Supports the following modules: QSFP28 100GBASE-PSM4-S/-PLR4L/-PLR4, QSFP-DD 400GBASE-XDR4/-DR4/-FR, QDD-4X100G-LR, QSFP112 400GBASE-DR4/-XDR4, OSFP 400GBASE-DR4, OSFP 800GBASE-DR8/-PLR8/-XDR8.

3.2 Multimode

For 10, 25, 40, 50, 100 Gbps Configurations

Diagram Description: This configuration illustrates multimode fiber connections for various speeds, using SFP+ transceivers, LC Duplex Patch Cables, MTP®-LC Cassettes, and MTP® Trunks.

• 12-fiber MTP backbone.
• Provides duplex (2 fibers) connectors for equipment.
• Universal polarity cassettes allow for the same interchangeable cassette on both ends of a Method B trunk in a fiber channel.

Supports the following modules: SFP28 25GBASE-SR/-CSR, SFP56 50GBASE-SR, QSFP28 40/100GBASE-SM4, QSFP+ 40GBASE-SR/-SR Bi-Di.

For 40, 100, 200, 400 Gbps Configurations

Diagram Description: This configuration shows the use of 8F MTP® Jumpers and MTP®-LC to MTP® Cassettes, with 12-fiber MTP® Trunks, for parallel 8-fiber connections.

• 12-fiber MTP backbone stays in place.
• Swap out MTP-LC cassettes for MTP-MTP conversion cassettes.
• Provides Parallel (8-fiber) connections to equipment.
• Universal polarity cassettes allow for the same interchangeable cassette on both ends of a Method B trunk in a fiber channel.

Supports the following modules: QSFP28 100GBASE-SR4/-ESR4/-SL4, QSFP28 100/112GBASE-SR4, QSFP56 200GBASE-SR4, QSFP-DD 400GBASE-SR4.2/-SR4, QSFP112 400GBASE-SR4.

For 40, 100, 200, 400 Gbps Configurations

Diagram Description: This configuration utilizes MTP® Adapter Panels with 12F MTP® Jumpers and 12F MTP® Trunks, enabling parallel 12-fiber connections.

• 12-fiber MTP backbone stays in place.
• Swap out MTP-LC/MTP-MTP cassettes with MTP pass-thru adapter panels.
• Provides Parallel 12-fiber connections to equipment.

Supports the following modules: QSFP28 100GBASE-SR4/-ESR4/-SL4, QSFP28 100/112GBASE-SR4, QSFP56 200GBASE-SR4, QSFP-DD 400GBASE-SR4.2/-SR4, QSFP112 400GBASE-SR4.

4. Technical Specifications

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