This chapter will cover the essential devices to establish and maintain a LAN infrastructure. Network hardware is the backbone that allows computers to communicate via various networks, such as Ethernet and fiber.
The Shift from Hubs to Modern Devices
Let’s start by noting that hubs have become obsolete in networking. Once a crucial piece of equipment, hubs have been replaced by more advanced and efficient devices. This shift reflects the rapid development of networking technology and the need for up-to-date knowledge.
Network Administrator Career Path
This training program is designed to equip new and experienced administrators with the skills to manage current and future networks effectively.
The Network Interface Card (NIC)
Role and Importance
Every computer needs a NIC to communicate online or within a network. NICs support various mediums, including Ethernet, Wi-Fi, and fiber optic connections.
Types of Compatibility
- Ethernet: Most wired network cards use the RJ45 standard for Ethernet connectivity.
- Wi-Fi: Wireless network cards follow IEEE 802.11 standards to work with Wi-Fi networks.
- Fiber Optic: NICs for fiber optic networks must meet specific fiber connection requirements.
Integration and Expansion
Modern devices often come with built-in network adapters on the motherboard. Expansion options include adding a Wi-Fi card via a PCI slot to a desktop.
Network Adapter: A Key Networking Component
The network adapter, or the NIC, is crucial to networking. Its role goes beyond simple connectivity, serving as the primary interface between a computer and the network.
Essential Functionality
- Connectivity: Network adapters are the physical interface required for network connectivity through wired Ethernet or wireless Wi-Fi connections.
- Data Transmission: These devices convert data into a format that can be transmitted over the network. This includes encapsulating data into packets for transmission and decoding received packets.
Types of Network Adapters
- Wired Adapters: These adapters, which are found in desktop computers, servers, and laptops, support Ethernet connections via an RJ45 connector and are known for their high-speed and stable data transfer.
- Wireless Adapters: Common in modern laptops, mobile phones, and IoT devices, these adapters connect to Wi-Fi networks and are essential for devices requiring mobility and flexibility.
- Fiber Optic Adapters: These adapters are used in environments needing high bandwidth and low latency, such as large enterprises and data centers. They connect to fiber-optic cables for high-speed data transfer over long distances.
This post was written by a professional at Link-Us Online. At Link-Us Online, we understand the power of networking and its potential to improve the efficiency of your business. Our team empowers users to discover and acquire high-quality networking hardware from a diverse range of suppliers. We offer a range of industry-leading solutions from top brands such as Cisco, Meraki, HPE, Juniper, APC, Fortinet, and Ubiquiti. Whether you’re a small business owner seeking reliable equipment for your expanding network or someone in the purchasing department working for universities, real estate management companies, or local governments hunting for specific gear, Link-Us Online is your dedicated ally. Contact us if you are looking for Meraki network equipment.