The XGS-1577 XGSPON Meter is a high-performance testing tool designed for accurate and simultaneous measurements of upstream and downstream PON wavelengths in optical networks. With support for 1270 nm and 1310 nm upstream wavelengths, and 1490 nm, 1550 nm, and 1577 nm downstream wavelengths, this meter is ideal for EPON, BPON, GPON, XG-PON, and XGS-PON installations and maintenance. Its user-friendly interface, equipped with a bright color LCD screen, allows for easy data reading and navigation. It also features both SC/APC and FC/APC adapters, ensuring compatibility with most optical networks