Cable Certifiers vs. Cable Testers: Understanding the Differences

 Cable Tester vs Cable Certifier

The terms “cable certifier” and “cable tester” often get used interchangeably, but they refer to different tools with distinct purposes in network cabling.

Cable Tester

A cable tester is a general term that includes various tools used to check the basic functionality of network cables. These tools can be divided into two main categories:

Verification Testers:

• Purpose: Check basic connectivity and wiring.
• Functions: Verify if the cable is connected correctly, check for continuity, and identify wiring issues like crossed wires.
• Use Case: Ideal for quick troubleshooting and ensuring that cables are correctly connected.

Qualification Testers:

• Purpose: Determine if the cable can support specific network speeds and technologies.
• Functions: Test if the cable can handle data rates like 100BASE-TX, Gigabit Ethernet, or VoIP.
• Use Case: Useful for assessing whether existing cabling can support new network requirements.

Cable Certifier

A cable certifier is a more advanced tool used primarily by professional installers and network technicians to ensure that cabling meets industry standards.

• Purpose: Certify that the cable installation complies with specific standards (e.g., TIA/EIA or ISO).
• Functions: Perform detailed tests such as insertion loss, return loss, near-end crosstalk (NEXT), and more. Based on these standards, it provides a “Pass” or “Fail” result.
• Use Case: Required for installations where compliance with standards is necessary, often for warranty purposes or to meet contractual obligations.

Key Differences

• Detail and Accuracy: Certifiers provide more detailed and accurate measurements than testers.
• Standards Compliance: Certifiers are necessary for proving compliance with industry standards, while testers are generally used for basic troubleshooting and verification.
• Cost: Certifiers are typically more expensive due to their advanced capabilities and the detailed reports they generate.

In summary, a cable certifier is the way to go if you must ensure that your cabling meets specific standards and can support high-performance networks. A cable tester will suffice for basic troubleshooting and verifying connections.