Bay Networks 920-439-B Media Card MM ST Fiber 10BASE-FL

Bay Networks 920-439-B Media Card MM ST Fiber 10BASE-FL is a BayStack fiber media adapter that adds a single 10 Mbps fiber Ethernet port to Bay Networks BayStack hubs. It uses a multimode fiber interface terminated with an ST connector, compatible with 62.5/125 µm and 50/125 µm fiber. When installed in the BayStack hub, you align the card with the guides and slide it into the backplane to establish the fiber link. The 10BASE-FL link can span up to 2000 meters depending on fiber type and in-line connections, subject to optical power budget and Ethernet repeater rules. Optical budget details: for 62.5/125 µm fiber, the transmitter power is approximately −20 dBm with a receiver sensitivity of −32.5 dBm, yielding about 12.5 dB optical budget; for 50/125 µm fiber, transmitter power is approximately −25.7 dBm with the same receiver sensitivity, yielding about 6.8 dB budget. This card is part of BayStack’s fiber Ethernet offerings for backbone or campus deployments requiring a fiber link between BayStack devices.