Rack-mount fiber optic splitters are passive optical splitters integrated into standard rack-mounted chassis, typically installed in telecom racks, ODF frames, or central office distribution systems. Unlike active devices (which require power), splitters operate without electricity, relying solely on the physics of. Fiber optic splitter is a passive optical device used to distribute optical signals, which can divide input optical signals into multiple outputs to meet the fiber optic access needs of multiple terminal devices. “Passive” means it needs no electricity. One large pipe brings water into a building. The Optical splitter rack mount is designed by standard of YD/T2000-2009, YD/T1117-2001.