The main differences between indoor and outdoor multi-pair Ethernet cables lie in the outer sheath structure and protective performance:
Outer Sheath Structure
Outdoor Ethernet cables utilize a double-layer outer sheath design, with a 1.2mm thick, high-density PE waterproof layer on the outside and a PVC inner layer. They can withstand temperature fluctuations of 30°C to 80°C and exhibit a low insulation loss of 8% in humid environments.
Indoor Ethernet cables utilize a single-layer PVC outer sheath, offering greater flexibility but lacking specialized waterproofing and UV resistance. Prolonged exposure to sunlight may cause the outer sheath to become brittle.
Core Differences
Protection Performance: Outdoor Ethernet cables contain a carbon black antioxidant (to prevent UV degradation) and are UL94 V0 certified for fire resistance. They are suitable for direct burial, humid environments (such as those experiencing the return of the south wind), and animal exposure. Indoor Ethernet cables are susceptible to humidity and may experience disconnections during long-term use.
Application Scenarios: Indoor Ethernet cables are only suitable for stable indoor environments, while outdoor Ethernet cables are suitable for harsh outdoor environments such as base station and surveillance cabling.