JDSU, now known as Viavi Solutions, is a manufacturer known for producing high-quality electronic test equipment. Their devices are widely used in various industries including telecommunications, fiber optics, and wireless network testing. One of their popular product lines is the ACTERNA series. The ACTERNA series includes a range of analog and digital test equipment designed to meet the needs of different applications. These devices offer several advantages such as accuracy, reliability, and advanced features. They provide precise measurement capabilities, enabling technicians to troubleshoot and verify the performance of various equipment and systems. One of the examples from the ACTERNA series is the HA9 handheld analyzer. It is designed for testing and troubleshooting digital services in carrier-grade networks. It offers comprehensive testing capabilities for Ethernet, IP, and SONET/SDH networks. The HA9 provides real-time monitoring, analysis, and reporting functions to ensure network performance and service quality. Another example is the ONT-506 optical network tester, designed specifically for fiber-optic networks. It offers advanced features such as optical power measurement, optical return loss, and wavelength identification. The ONT-506 is lightweight, portable, and enables fast and accurate testing of fiber optic systems. The SB series is another popular line of ACTERNA products, primarily used in the construction, installation, and maintenance of wireless networks. These devices offer signal analysis, antenna testing, and interference detection capabilities. The SB series is highly regarded for its versatility and ease of use. In summary, JDSU / ACTERNA electronic test equipment like the HA9, ONT-506, and SB series provide accurate testing capabilities, advanced features, and reliability essential for various industries. These devices ensure the performance and quality of network systems, making them a preferred choice among professionals in the field.