What fiber optic cable should I use for a PTN950 optical port

For the Huawei PTN950 optical port, use single-mode fiber (G.652D or G.657A2) for long-distance links, and multimode fiber (OM3/OM4) for short-distance connections.Recommended Fiber TypesSingle-mode fiber (SMF) is the standard choice for PTN950 optical ports when deploying links over longer distances, typically beyond 500 meters. The commonly used types are:G.652D: Standard single-mode fiber suitable for long-haul and metro networks, with a 9/125 µm core/cladding diameter .G.657A2: Single-mode fiber optimized for installations with tight bend radii, ideal for indoor or constrained environments, also 9/125 µm . Multimode fiber (MMF) is suitable for shorter distances, such as within a building or campus network:OM3 (50/125 µm): Supports 10G–40G Ethernet up to 300 meters.OM4 (50/125 µm): Enhanced bandwidth for 10G–100G Ethernet up to 550 meters .Connector and Installation ConsiderationsConnectors: PTN950 typically uses LC or SC connectors, depending on the module installed. Ensure the fiber patch cords match the port type .Bending radius: Maintain a minimum bending radius of 40 mm for 2 mm fiber to prevent signal loss .Cable construction: Choose breakout or distribution cables for indoor installations, and loose tube or armored cables for outdoor or harsh environments .Routing: Use cable guides or bellows to prevent fiber stress and ensure proper strain relief .SummaryLong-distance PTN950 links: Single-mode fiber (G.652D or G.657A2)Short-distance PTN950 links: Multimode fiber (OM3 or OM4)Connector type: Match LC or SC as per moduleInstallation: Respect minimum bend radius and use appropriate cable construction for indoor/outdoor deployment Selecting the correct fiber type ensures optimal signal quality, minimal attenuation, and compliance with Huawei PTN950 specifications, supporting reliable high-speed transport in your network .