To view the results of optical tests, click Status and Statistics > Diagnostics > Optical Module Status. This page displays the following fields: Transmitter Fault—Remote SFP reports signal loss. Values are True, False, and No Signal (N/S) Loss of Signal—Local SFP reports signal. For the most up-to-date list of transceiver modules and network cables, contact your H3C sales representative or technical support engineer. Optical modules transmit. Reading optical module information during use helps understand its real-time operating status, allowing you to locate the cause of link abnormalities more quickly. © Copyright: 2026 ETU-Link Technology CO. How to view the WLC SFP module information? 1. For the AireOS devices such as WLC5508, 5520, 8540, we can view it as follows. Enter CMD console wmic memorychip. The following GE SFP (1000Mbps) transceivers are supported: MGBSX1:1000BASE-SX SFP transceiver, for multimode fiber, 850 nm wavelength, supports up to 550 m. The LED shows the status of the device: • Steady green—The switch operating correctly.