What type of tool might a technician use to tighten a connector securely?

A wrench or pliers are essential tools for a technician when it comes to tightening connectors securely. These tools provide the required grip and leverage to ensure that connectors are fastened tightly, which is crucial for maintaining optimal signal integrity and preventing issues such as signal loss or interference. Properly tightened connectors help to avoid physical damage to the connector itself and ensure that connections remain stable during operation.

In contrast, wire cutters are designed for cutting wires and may not provide the necessary functionality for tightening. A signal meter is primarily used for measuring signal levels and quality, not for mechanical adjustments. A cable tester is utilized to check the integrity and performance of cables but does not serve the purpose of physically tightening connectors. Thus, the use of a wrench or pliers is the most appropriate choice for securing connectors effectively.