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3.1 Introduction to Electrical Interface of Instrument
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DC12V/3A Power supply interface
Requirement to power supply interface: input DC12V/3A, polarity: .
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USB、SD Data Interfaces
The instrument is matched with USB and SD card interfaces. SD card interface is matched
with a 4G SD card. The SD card is the default data saving medium of the instrument
’
s trace files.
To plug U disk (≤8G) into the USB interface can transfer the trace data saved in the instrument
into the U disk, and then save the data into the computer from the U disk to conduct subsequent
analysis; or take out the SD card from the instrument and plug into the computer to conduct
subsequent analysis. The data in the U disk can be read only if plug in the U disk when the
instrument is on.
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Charge Indicator
When charging the battery, the indicator is turned on to be green; when charging finished,
the indicator will turn off automatically.
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LAN Ethernet Interface
Several models have such interface.
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Audio Interface
Several models have such interface.
3.2 Instruction of Optical Interface of Instrument
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Optical Interface of OTDR
The optical interface is the measurement interface of OTDR. It adopts FC/UPC optical
connector (SC/ST are replaceable).
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VLS Optical Interface
The optical interface is the measurement interface of VFL. It adopts FC/UPC optical
connector (SC/ST are replaceable).
Invisible laser radiation
Do not look at the optical interface directly or look over the optical interface
through optical instrument.
The optical interfaces of OTDR and VFL output laser. Users should always
avoid look at the laser outlet directly. Not mention to observe the optical outlets
with microscope or magnifier. If the energy of laser beam focuses on the retina,
the eyes will be hurt perpetually.
