https://www.polatis.com/switch-modules-for-oem-all-optical-switch-module-solutions-original-equipment-manufactures.asp
POLATIS Optical Switch Modules from 16x16 up to 48x48 Ports
POLATIS Series 6000 Optical Switch Modules (OSM) are high-performance, fully non-blocking all-optical matrix switch modules with port counts from 16xCC up to...
optical switch modulesup toports