RJ45 connectors are the lifeline of network setups. But they come in two common types. One is shielded and the other is unshielded. Each has its place depending on the network environment. Choosing the right one is more than just matching plugs and cables. You need to think about interference, performance, and your installation space.
That’s why many users ask, “Why should you have shielded RJ45 connectors?” Others want to know if they can modify existing setups or ask, “How do you shield an unshielded RJ45 connector?” This article breaks everything down so you can make the right call without the confusion. Let’s start by understanding what shielded RJ45 connectors and unshielded RJ45 connectors are.
What is an Unshielded RJ45 Connector?
An unshielded RJ45 connector is a standard Ethernet plug used in low-interference areas. It connects twisted pair cables to your network devices. You’ll find these in offices, homes, and small network setups. They’re simple and cost-effective. However, they’re not made to handle environments with a lot of electrical noise.
Think of open office ceilings with lights, HVAC systems, and countless wires overhead. Without shielding, they may be more vulnerable to signal loss or crosstalk. Still, unshielded RJ45 connectors get the job done in most clean and simple spaces.
What is a Shielded RJ45 Connector?
A shielded RJ45 connector comes wrapped in metal. This metal casing surrounds the connector and links to a shielded Ethernet cable. That’s your armor against outside noise. It's built for places where interference is real, such as factories, data centers, and hospitals.
These connectors often pair with RJ45 shielded cable to create a complete protective path for your signals. Some even include metal tabs that ground directly to the device. They cost more, but they provide peace of mind in rough environments.
Pros and Cons of Shielded RJ45 Connectors
When considering shielded RJ45 connectors, it’s important to weigh both the benefits and the drawbacks. Shielding can significantly improve performance in challenging environments but may come with some trade-offs. Below is a breakdown of the pros and cons that can help guide your decision.
Pros:
The advantages of shielded RJ45 connectors are clear when it comes to performance in high-interference environments. Here are some reasons why they stand out:
- Excellent protection from electromagnetic interference (EMI)
- Reduced risk of cross-talk between cables
- Better performance in high-speed or long-distance runs
- Ideal for industrial and commercial setups
Cons:
While shielded connectors have notable benefits, they come with their own challenges. Here’s why they may not always be the best option for every setup:
- More expensive than unshielded versions
- Harder to install without the right tools
- Grounding mistakes can backfire and make interference worse
- Bulkier and less flexible in tight spaces
Shielded connectors aren't always the best choice for small or residential setups. But if you’re working in a noisy environment, they might be exactly what you need.
4 Factors Considered When Choosing RJ45 Shielded Connectors
Choosing the right RJ45 connector doesn’t need to be a headache. Keep your setup in mind, especially your cable type, budget, work area, and speed needs. These four things will steer you in the right direction.
Cable Types
You need to match your connectors to your cables. If you're using Cat6 shielded connectors, make sure the cable itself is shielded. Mixing shielded connectors with unshielded Ethernet cable causes performance problems.
For Cat6 RJ45 connector shielded setups, the shielding must line up from end to end. Also, don’t try to force-fit shielded Cat5 cable connectors into Cat6 systems. It’s like putting diesel into a gas engine.
Cost
Shielded RJ45 connectors cost more. And it’s not just the connector. You also need shielded cables, proper tools, and sometimes special outlets. For smaller networks, that price jump may not make sense. But for larger builds or places filled with devices and wiring, the investment protects your connection.
If you're sticking to a tight budget, go for Cat5e shielded connector options—they’re cheaper than Cat6 but still offer decent shielding.
Installation Environments
Is your network going near power lines, heavy machinery, or radio equipment? If yes, skip unshielded options. Shielded versus unshielded Ethernet cable comes down to location. Areas full of interference demand protection. Therefore, you shouldn’t risk dropouts or slowdowns.
Cat6 shielded RJ45 connectors are best for hospitals, labs, and industrial plants. For simple setups at home, a toolless RJ45 connector might be enough without shielding.
Network Performance
Shielded connections tend to be faster and more stable, especially when used with Cat6 shielded cable connectors. They handle higher bandwidths and offer tighter data integrity.
That matters for video streaming, VoIP calls, or cloud-based work. If performance matters, go with a shielded Cat 6 connector.
How to Correctly Install a Shielded RJ45 Connector?
Installing an RJ45 shielded connector isn’t rocket science. But one mistake can mess up your network. So, take your time and follow these basic steps:
- Strip the cable jacket without damaging the shielding underneath.
- Expose and separate the twisted pairs, untwist only what you need.
- Fold back the cable shield and prepare it to touch the connector’s metal body.
- Insert wires into the connector following the T568A or T568B standard.
- Crimp the connector using a proper tool, ensuring the shield makes full contact with the metal casing.
Avoid pinching the cable too tightly. A bad crimp or poor contact will ruin the shielding effect. And don’t forget to ground the connector at one end, usually at the patch panel or switch.
Final Thoughts
Shielded vs. unshielded RJ45 connectors both have their place. Your setup decides which one wins. If noise or interference is part of your environment, don’t cut corners. Shield your cables, use matching connectors, and ground everything properly.
TS Cables has what you need. From Cat6 RJ45 shielded to pass-through plugs, their selection has your back.
FAQs
Q1: Do I need shielded connectors for a home network?
Not usually. Unless you live near power lines or use long cable runs near noisy devices, unshielded will work fine.
Q2: Can I mix shielded connectors with unshielded cables?
No. That breaks the shielding chain and makes the system vulnerable to interference.
Q3: Why do shielded connectors need grounding?
Grounding completes the circuit for the shield, directing electrical noise away from your signal.
