... 1310nm,1490nm,1550nm wavelength laser output ,650nm visible laser source output optional. Using Advanced laser control technology for engineer ... source output ,1310/1490/1550nm wavelength for PON systemOutput power adjust, four grade output, step -4dBmOptional 650nm visible laser ... 330Hz/1KHz/2KHzFiber TypeSMConnector typeFC/PCVisible Laser Source (Visual Fault Locator)Output wavelength650nmEmitter ...