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7.8 Instruction of Menu Button “Trace Locking” of OTDR
After entering interface of OTDR, click the button icon “trace locking”, i.e. lock the current
displayed trace in the trace graph area; when clicking the button “trace unlock”, the locking
function is relieved.
Trace locking function can lock one trace each time. The locked trace neither can be
switched to be “current trace”, nor be moved up and down.
Fig.7-20 Interface Diagram of Menu “Trace Locking OFF”
