The system is mainly composed of OLT (Optical Line Terminal), ONU (Optical Network Unit) and ODN (Optical Distribution Network) in the optical distribution network. Among them, the ODN does not include active equipment, and the OLT to the ONU is connected through an optical splitter to form a P2MP (point-to-multipoint) optical access system.
PON can save optical fiber resources, ODN does not need power supply, user access is convenient, and supports multi-service access. It is a broadband optical fiber access technology that operators are currently vigorously promoting. There are mainly two technologies, EPON and GPON.
The PON system uses WDM (Dense Wavelength Division Multiplexing) technology to achieve single-fiber bidirectional transmission.●Upstream data flow adopts TDMA technology
SeikoFire's self-developed S316 PON power meter adopts a brand-new rubber-covered shell design, shockproof and drop-proof, and feels ergonomic. The instrument is highly integrated with functions such as PON power meter, wide-range optical power meter, red light source, network cable sequence proofing, etc., and can store and upload instrument test data records, and is widely used in the construction and detection of cable TV and other optical line projects , Maintenance, etc.
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