GE Multilin L90 Line Current Differential System 2-272 PRODUCT DESCRIPTION 2.4 SPECIFICATIONS2TYPICAL LINK DISTANCECompensated difference in transmitting and receiving (channelasymmetry) channel delays using GPS satellite clock: 10 ms2.4.10 ENVIRONMENTALAMBIENT TEMPERATURESStorage temperature: –40 to 85°COperating temperature: –40 to 60°C; the LCD contrast can beimpaired at temperatures less than –20°CHUMIDITYHumidity: operating up to 95% (non-condensing) at55°C (as per IEC60068-2-30 variant 1, 6days).OTHERAltitude: 2000 m (maximum)Pollution degree: IIOvervoltage category: IIIngress protection: IP20 front, IP10 backEMITTER TYPE CABLETYPECONNECTORTYPETYPICALDISTANCE820 nm LED,multimode62.5/125 μm ST 1.65 km1300 nm LED,multimode62.5/125 μm ST 3.8 km1300 nm ELED,single mode9/125 μm ST 11.4 km1300 nm Laser,single mode9/125 μm ST 64 km1550 nm Laser,single-mode9/125 μm ST 105 kmTypical distances listed are based on the follow-ing assumptions for system loss. As actual lossesvary from one installation to another, the distancecovered by your system may vary.CONNECTOR LOSSES (TOTAL OF BOTH ENDS)ST connector 2 dBFIBER LOSSES820 nm multimode 3 dB/km1300 nm multimode 1 dB/km1300 nm singlemode 0.35 dB/km1550 nm singlemode 0.25 dB/kmSplice losses: One splice every 2 km,at 0.05 dB loss per splice.SYSTEM MARGIN3 dB additional loss added to calculations to compensate forall other losses.NOTE
