Ethernet cable Advantages

1. Purpose & Function

• Connectivity: Links devices to a network for internet access, file sharing, or communication.

• Data Transfer: Transmits data via electrical signals through twisted copper wires.

• Reliability: Offers more stable/lower-latency connections than Wi-Fi (crucial for gaming, streaming, or video calls).

2. Physical Features

• Connectors: Standard RJ-45 plugs (wider than telephone RJ-11).

• Internal Wiring: 4 twisted pairs (8 wires total), reducing electromagnetic interference.

• Jacket Types:

  • UTP (Unshielded Twisted Pair): Most common; sufficient for homes.

  • STP/FTP (Shielded/Foiled): Extra shielding for noisy environments (e.g., industrial areas).

3. Categories (Common Types)

*Speeds depend on network hardware.

4. Key Considerations

• Length: Shorter cables reduce signal degradation (max recommended: 100m/328ft).

• Shielding: Choose STP/FTP if near power lines/motors; UTP is fine for most homes.

• Quality: Avoid cheap cables (may lack pure copper wires, causing failures).

• Flat vs. Round: Flat cables are flexible for routing but may lack shielding.

5. Applications

• Connecting a router to a modem.

• Linking computers to office networks.

• Gaming consoles/smart TVs for lag-free streaming.

• Power over Ethernet (PoE): Delivers power + data to devices like security cameras (requires compatible cables, e.g., Cat 5e+).

6. Troubleshooting Tips

• No connection? Ensure plugs click firmly into ports.

• Slow speeds? Test with another cable; check for damage (kinks/pet chewing).

• Intermittent drops? Verify cable length (<100m) and category (e.g., Cat 5e may bottleneck gigabit internet).