OCP Optical Cross Protection System, 8+1 Protecting Ways, 1310/1550nm Single Mode 9/125 Fiber LC/PC Connector, Pluggable Module OTS3000-OCP is a kind of function card in optical communication integrated platform. N+1 optical cross-protection system is a matrix switch protection system that uses a backup optical transmitter to protect more than one main optical transmitter. In optical fiber transmission system, if there are N sets optical transmitter and one of them is backup, when any of the optical transmitter breaks down but the backup works normally, the optical cross-protection device will switch to the backup within milliseconds to keep the system working. https://www.glsunmall.com/product/ots3000-ocp-optical-cross-protection.html