Types of Multimode Fiber Optic Patch Cords

Multimode fiber optic patch cords are essential in network installations, especially where fast data transmission is required. These patch cords consist of one or more optical fibers and end connectors. Various types of multimode fiber optic patch cords are available on the market. Depending on the application and requirements, one can choose from patch cords of different lengths, diameters, and bandwidths.

Multimode fiber optic patch cords are constructed using fibers such as OM1, OM2, OM3, and OM4, specified by the International Electrotechnical Commission (IEC). They are available in duplex (two-fiber) versions with lengths of 1m, 2m, 3m, and 5m.

Features of Patch Cords:

• Low insertion loss
• High return loss
• Excellent mechanical durability
• Reliable operation
• Reproducibility

Types of Fiber in Multimode Fiber Optic Patch Cords

Multimode fiber optic patch cords can be made from various types of optical fibers. Commonly used multimode fibers include OM1, OM2, OM3, and OM4. Each type of fiber has different transmission parameters, such as maximum wavelength, bandwidth, and production costs. When choosing multimode fiber optic patch cords, it is important to consider network requirements and determine which fiber type best suits your needs.

Multimode fibers (MMF), characterized by a larger core diameter compared to single-mode fibers, typically have a core diameter of 50 or 62.5 micrometers. In multimode fibers, light waves of the same wavelength can travel through multiple paths, called modes, hence the term "multimode fiber." The movement of modes along the fiber can occur at different speeds, leading to distortion (modal dispersion) and limiting transmission speed or distance. Therefore, multimode fibers are suitable for short-distance applications, such as within buildings.

Multimode Patch Cords - LC/UPC duplex fiber optic patch cords made from OM3 fiber are known for their high quality. They are certified with ISO9001, 14001, and ROHS. Equipped with LC/UPC connectors on both ends (UPC – flat-polished ferrule connectors), they are used for connecting end devices or network equipment to the structured cabling system.

Types of Fiber in Multimode Fiber Optic Patch Cords

In multimode fiber optic patch cords, glass or plastic fibers are typically used. Glass fibers are more popular due to their higher bandwidth, lower signal loss, and longer lifespan. Plastic fibers, on the other hand, are more flexible and cost-effective. When choosing multimode fiber optic patch cords, it's worth considering whether glass or plastic is more suitable for your needs.

A simplified comparison of multimode fiber optic categories defined by the IEC standard:

• OM1 Category – core diameter 50 or 62.5 micrometers, link range for 1Gbps at 850nm – 275m, at 1300nm - 550m.
• OM2 Category – core diameter 50, link range for 1Gbps at 850nm – 550m, at 1300nm - 2000m.
• OM3 Category – core diameter 50, link range for 1Gbps at 850nm – 1100m, at 1300nm - 550m.
• OM4 Category – core diameter 50, link range for 1Gbps at 850nm – 1100m, at 1300nm - 550m.

Connectors in Multimode Fiber Optic Patch Cords

Multimode fiber optic patch cords are equipped with end connectors that allow connection to network devices. These connectors can be made from various materials, such as ceramics, metal, or plastics. Ceramic connectors are more resistant to mechanical damage and provide better optical fiber connections. Metal connectors, on the other hand, are more durable and withstand challenging weather conditions