Lantronix TN-QSFP-100G Series TN-QSFP-100G User Guide Rev C - Page 8

Lantronix TN-QSFP-100G-xxxxx User Guide Fiber Cable Physical Characteristics The fiber cable physical characteristics must meet or exceed IEEE 802.3bm specifications. TN-QSFP-100G-SR4: OM3 Multimode Fiber (up to 70m on) or OM4 Multimode fiber (up to 100m). TN-QSFP-100G-LR4: 100G QSFP28 Duplex LC connector; up to 10km transmission on SMF, with DOM (Digital Optical Monitoring) function. TN-QSFP-100G-PSM4: designed to operate over single mode fiber systems using 1310nm DFB laser array. An optical fiber ribbon cable with an MPO/MTPMT connector can be plugged into the TN-QSFP100G-PSM4 module receptacle. TN-QSFP-100G-CWDM4: designed to operate over single mode fiber systems using 1310nm DFB laser array. ISO/IEC 11801 (Structured Cabling): International standard ISO/IEC 11801 Information technology - Generic cabling for customer premises specifies general-purpose telecommunication cabling systems (structured cabling) that are suitable for a wide range of applications (analog and ISDN telephony, various data communication standards, building control systems, factory automation). It covers both balanced copper cabling and optical fibre cabling. The standard was designed for use within commercial premises that may consist of either a single building or of multiple buildings on a campus. It was optimized for premises that span up to 3 km, up to 1 km2 office space, with between 50 and 50,000 persons, but can also be applied for installations outside this range. A major revision, Edition 3, was released in November 2017, unifying requirements for commercial, home and industrial networks. The standard defines several classes of optical fiber interconnect: OM1: Multimode fiber type 62.5 µm core; minimum modal bandwidth of 200 MHz·km at 850 nm OM2: Multimode fiber type 50 µm core; minimum modal bandwidth of 500 MHz·km at 850 nm OM3: Multimode fiber type 50 µm core; minimum modal bandwidth of 2000 MHz·km at 850 nm OM4: Multimode fiber type 50 µm core; minimum modal bandwidth of 4700 MHz·km at 850 nm Cleaning It is important that every fiber connector be inspected and cleaned prior to mating. Numerous tools and cleaning products are available for cleaning with a fiber cleaner for the fiber head as well as for cleaning with a ferrule cleaner. Cleaning products can include cartridge and pocket style cleaners, lint−free wipes, lint−free swabs, lint−free wet wipes, lint−free swabs, manual advance cleaners, etc. from a wide array of vendors. This section is provided as a general guideline and not as a complete process or procedure, as no known cleaning method is 100% effective. Dirt is the single biggest problem with fiber optics. Inspect and clean connectors. Inspect and clean again until they are perfect. Inspect and clean both ends in pairs. Clean the connectors, the mating adapters, and the transceiver ports. Have a cleaning policy in place including a checklist of items tailored to your specific site requirements. Keep records for future troubleshooting (e.g., where cable is run, splice and termination locations, make and model of components, OTDR data, cleaning performed, etc.). Follow industry safety precautions! Warning: Invisible laser radiation might be emitted from disconnected fibers or connectors. Do not stare into beams directly or view with optical instruments. Always turn off any laser sources before you inspect fiber connectors, optical components, or bulkheads. Always make sure that the cable is disconnected at both ends or that pluggable transceiver is removed from the device. Always wear the appropriate safety glasses when required for your area. Never look into a fiber with the device lasers on. Always follow proper grounding procedures. Never connect a fiber to a fiberscope with the device lasers on. Warning: Visible and invisible laser radiation when open. DO NOT stare into laser beam or view directly with optical instruments. Failure to observe this warning could result in damage to your eyes or blindness. 33765 Rev. C http://www.lantronix.com/ Page 8 of 15