How to Choose Between Shielded and Unshielded LAN Cables
Local area networks (LANs) are the backbone of any modern business or home network. They allow devices to connect to each other and share resources, such as files, printers, and internet access. The cables that make up a LAN can either be shielded or unshielded, and the type of cable you choose can have a significant impact on the performance of your network.
Twisted Pair Cable Basics
Both shielded and unshielded LAN cables use twisted pair technology. This means that the cable consists of four pairs of copper wires, each pair twisted together. The twisting helps to cancel out electromagnetic interference (EMI), which can cause errors in data transmission.
Shielded LAN Cables
Shielded LAN cables have an additional layer of shielding around the twisted pair wires. This shielding can be either foil or braid. Foil shielding is less expensive than braid shielding, but it provides less protection from EMI. Braid shielding is more expensive, but it provides better protection from EMI.
Pros of Shielded LAN Cables
Reduced EMI: Shielded LAN cables provide better protection from EMI than unshielded LAN cables. This is important in environments where there is a lot of electrical noise, such as near power lines or other electrical equipment.
Increased data rates: Shielded LAN cables can support higher data rates than unshielded LAN cables. This is because the shielding reduces the amount of noise that is introduced into the cable, which allows for faster data transmission.
Cons of Shielded LAN Cables
More expensive: Shielded LAN cables are more expensive than unshielded LAN cables.
More difficult to install: Shielded LAN cables are more difficult to install than unshielded LAN cables. This is because the shielding must be properly grounded in order to be effective.
Unshielded LAN Cables
Unshielded LAN cables do not have any additional shielding around the twisted pair wires. This makes them less expensive and easier to install than shielded LAN cables. However, unshielded LAN cables are also more susceptible to EMI.
Pros of Unshielded LAN Cables
Less expensive: Unshielded LAN cables are less expensive than shielded LAN cables.
Easier to install: Unshielded LAN cables are easier to install than shielded LAN cables.
More flexible: Unshielded LAN cables are more flexible than shielded LAN cables. This makes them easier to route through tight spaces.
Cons of Unshielded LAN Cables
Increased EMI: Unshielded LAN cables are more susceptible to EMI than shielded LAN cables. This can cause errors in data transmission, especially in environments where there is a lot of electrical noise.
Lower data rates: Unshielded LAN cables can support lower data rates than shielded LAN cables. This is because the lack of shielding allows more noise to be introduced into the cable, which can interfere with data transmission.
Which Type of LAN Cable is Right for You?
The type of LAN cable that is right for you depends on your specific needs. If you need a cable that provides the best protection from EMI and can support the highest data rates, then a shielded LAN cable is the best choice. However, if you are on a budget or need a cable that is easy to install, then an unshielded LAN cable may be a better option.