The CUBRO optical TAPs maintain permanent passive connection for monitoring purposes without introducing a potential point of failure or disturbing other network connections. CUBRO passive optical TAPs deliver full-duplex monitoring with zero impact on the network. CUBRO optical Test Access Ports provide a simple but powerful way for in-service monitoring of high-speed optical networks such as SDH/SONET/OTN and Ethernet up to 100 Gbit. Our optical TAPs are completely traffic transparent and offer 100% throughput. Therefore CUBRO optical TAPs can be used for any optical network application, regardless of the bit rate. Whether it is monitoring of STM-64, STM-256, 10G Ethernet or OTN signals, CUBRO is the right choice. The network links can either be Multimode (850/1300nm) or Single Mode (1310/1550nm). Thus, CUBRO TAPs can be used for short-haul as well as long-haul applications. CUBRO optical TAPs are delivered with LC type connectors. Depending on the available optical power budget the SM optical splitting ratio is selectable in 10% steps (SM standard is 80/20), the MM splitting ratio is always 50/50%. Every splitter used inside optical TAP is carefully handled and insertion loss is measured before the TAP is shipped to the customer. Therefore CUBRO customers can be sure that their products will satisfy their needs.