The part number **PC01LCASLCASA220ESS** refers to a high-quality fiber optic patch cable, typically used in telecommunications and data networking. To understand the electronic and physical components, we can break down the SKU into its technical specifications. --- ## Technical Specifications Breakdown | Component | Specification | Description | | :--- | :--- | :--- | | **Cable Type** | Singlemode (OS2) | Designed for long-distance transmission with low attenuation. | | **Connector A** | LC/APC | Lucent Connector with an Angled Physical Contact polish (8° angle). | | **Connector B** | LC/APC | Matching connector on the other end for consistent signal integrity. | | **Fiber Count** | Simplex | A single strand of fiber (1 core) for one-way or bi-directional data. | | **Length** | 22.0 Meters | The physical length of the cable assembly. | | **Jacket Rating** | LSZH | Low Smoke Zero Halogen; safe for use in poorly ventilated areas. | | **Armor/Shell** | ESS | Typically denotes an "Enhanced" or "Stainless Steel" armored jacket. | --- ## Key Electronic & Physical Components ### 1. The Fiber Core (OS2) The "electronic" functionality of this part relies on the transmission of light pulses. * **Material:** High-purity silica glass. * **Core Diameter:** 9µm (Microns). * **Function:** Acts as a waveguide for laser-generated signals (1310nm or 1550nm wavelengths). ### 2. LC/APC Connectors The connectors are the mechanical interface between the cable and the networking hardware (SFP modules, switches). * **LC (Lucent Connector):** A small form-factor connector using a 1.25mm ferrule. * **APC (Angled Physical Contact):** The green-colored ends. The 8-degree angle minimizes **Back Reflection (ORL)**, which is critical for high-speed fiber-to-the-home (FTTH) and sensitive RF applications. ### 3. ESS Armoring (Stainless Steel) Unlike standard patch cords, the "ESS" designation implies a ruggedized construction: * **Protection:** A flexible stainless steel tube resides beneath the outer jacket. * **Benefit:** Protects the glass core from crushing, kinking, or rodent damage without sacrificing flexibility. ### 4. LSZH Jacket * **Safety:** In the event of a fire, this material emits very limited smoke and no toxic halogen gases. * **Compliance:** Often required in data centers, hospitals, and industrial environments. --- ## Typical Applications * **FTTH/PON:** Connecting high-speed internet to premises. * **Data Centers:** High-density patching where space and safety are priorities. * **Industrial Automation:** Used in environments where the cable might be stepped on or pinched (due to the ESS armor).