OPM:Can identify and measure the power of 270/330/1k/2kHz frequency light
OLS: Can output wavelengths that are consistent with the OTDR function, used for parameter testing of telecommunications, CATV, and LAN optical cables; Optical passive device Testing of insertion loss, isolation, and return loss of components
There are five working modes of light sources: CW, 270Hz, 330Hz, 1kHz, and 2kHz