Necessity of optical line auto switch protection system（OLP） was described

according to the specific circumstances of Sanming grid

OLP series of optical fiber line Wuhan Accelink Polytron Technologies Inc as an example

comparing with the original communication mode and the new way of communication

the system principle

function and value of automatically switch protection system are described in detail.Need to maintain a susceptible line security

regional faults of OLP series optical line protection device and the corresponding management system can satisfy the electric power communication key artery and daily line.