Classification Diagram of Fiber Optic Patch Cords for Surveillance

Fiber optic patch cords for surveillance are classified by fiber type, connector type, strand count, and jacket type, ensuring optimal performance for security networks.

Fiber Type

• Single-Mode Fiber (SM, OS1/OS2): 9µm core, supports long-distance, high-bandwidth transmission with minimal signal loss. Ideal for large-scale surveillance networks or long-distance camera links .
• Multimode Fiber (MM: OM1/OM2/OM3/OM4/OM5): 50µm or 62.5µm core, supports multiple light paths, suitable for short-distance connections like indoor surveillance systems .
• Bend-Insensitive Fiber (BIF, G.657A1/A2): Tolerates tight bends with minimal signal loss, useful for high-density or constrained installations .

Connector Types

• LC (Lucent Connector): Small form factor, 1.25mm ferrule, high-density applications, commonly used with SFP transceivers in surveillance NVRs or switches .
• SC (Subscriber Connector): 2.5mm ferrule, push-pull design, widely used in PON and CCTV networks .
• ST (Straight Tip): Bayonet-style, 2.5mm ferrule, durable and easy to connect, suitable for legacy surveillance systems .
• FC (Ferrule Connector): Screw-on, high precision, often used in telecom or industrial surveillance setups .
• MPO/MTP: Multi-fiber connectors, up to 24 fibers, used in high-density backbone or multi-camera surveillance systems .
• E2000, MU, MTRJ: Specialized connectors for high-performance or compact installations .

Strand Count and Configuration

• Simplex: Single fiber, one-way transmission, used for point-to-point camera links .
• Duplex: Two fibers, bidirectional (Tx/Rx), standard for most Ethernet and PON surveillance links .
• Multi-core: Multiple fibers in one cable, used for large-scale surveillance networks with multiple cameras .

Jacket Types

• PVC: Standard indoor use, flexible and cost-effective .
• LSZH (Low Smoke Zero Halogen): Safer for public or enclosed spaces, emits minimal smoke in fire .
• OFNP/OFNR: Plenum-rated, high fire resistance, required for air-handling spaces .
• Armored: Steel sheath for rodent and crush protection, suitable for outdoor or harsh surveillance environments .

Additional Considerations

• Kevlar Strength Member: Provides tensile strength and durability for real-world handling .
• Polish Types: UPC (Ultra Physical Contact) for low insertion loss, APC (Angled Physical Contact) for minimal back reflection, important for high-quality video transmission .
• Color Coding: Yellow for single-mode, orange for OM1/OM2, aqua for OM3/OM4, lime green for OM5, aiding in quick identification . This classification ensures that surveillance networks achieve low signal loss, high reliability, and scalability, whether for indoor CCTV, outdoor IP cameras, or large-scale security systems. Proper selection of fiber type, connector, and jacket is critical for maintaining video quality and network stability.