Cabling and Connectors
Types of cables and connector interfaces.
Cabling and connectors form a critical infrastructure component in computer networks and device connectivity. For the CompTIA A+ certification, understanding various cable types and their appropriate connectors is essential. Network Cables: - Twisted Pair: Cat5e supports up to 1Gbps while Cat6/Cat6a can handle 10Gbps. These terminate with RJ-45 connectors and are used for Ethernet connections. - Coaxial: Features copper core surrounded by insulation and shielding, used for cable internet and some legacy networks. Typically uses F-type connectors. - Fiber Optic: Transmits data via light pulses through glass or plastic fibers. Types include single-mode (long distances) and multi-mode (shorter ranges). Common connectors include SC, ST, LC, and MT-RJ. Internal Computer Cables: - SATA: For connecting storage devices, with SATA data cables (7-pin) and power connectors (15-pin). - PATA/IDE: Older ribbon cables with 40 or 80 pins for storage devices. - Power Cables: Various types including Molex (4-pin), SATA power, PCIe power (6 or 8-pin), and ATX motherboard connectors. External Device Connectors: - USB: Universal Serial Bus versions include USB 2.0, 3.0 (blue), 3.1, and USB-C (reversible). Common for peripherals and data transfer. - HDMI: High-Definition Multimedia Interface for audio/video transmission. - DisplayPort: Alternative to HDMI with higher bandwidth capabilities. - Thunderbolt: Combines PCIe and DisplayPort into one serial signal. Troubleshooting cabling involves checking for physical damage, proper seating, correct pinouts, and using cable testers. Proper cable management includes labeling, using appropriate lengths, and avoiding sharp bends that might damage internal conductors or create interference.
Cabling and connectors form a critical infrastructure component in computer networks and device connectivity. For the CompTIA A+ certification, understanding various cable types and their appropriate…
Concepts covered: Twisted Pair Cabling, DisplayPort Connectors, VGA Connectors, USB Connectors, RJ-45 Connectors, DVI Connectors, HDMI Connectors, Fiber Optic Cabling, Power Connectors, Coaxial Cabling
Go Premium
CompTIA A+ Preparation Package (2025)
- 3756 Superior-grade CompTIA A+ practice questions.
- Accelerated Mastery: Deep dive into critical topics to fast-track your mastery.
- Unlock Effortless CompTIA A+ preparation: 5 full exams.
- 100% Satisfaction Guaranteed: Full refund with no questions if unsatisfied.
- Bonus: If you upgrade now you get upgraded access to all courses
- Risk-Free Decision: Start with a 7-day free trial - get premium features at no cost!