CHAPTER 2: PRODUCT DESCRIPTION SPECIFICATIONSL60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 2-332The following specifications apply to filter interface modules implemented before January 2012.TYPICAL LINK DISTANCECONNECTOR LOSSES (TOTAL OF BOTH ENDS)ST connector: 0.7 dB (each)FIBER LOSSES820 nm multimode: 3 dB/km1300 nm, Multimode 62.5/125 μm -16 dBm -32 dBm 16 dBm -8 dBm50/125 μm -20 dBm 12 dBm1300 nm, Singlemode9/125 μm -15 dBm -32 dBm 17 dBm -8 dBm1300 nm Laser,Single mode9/125 μm 0 dBm -34 dBm 34 dBm -8 dBm1550 nm Laser,Single mode9/125 μm 5 dBm -34 dBm 39 dBm -10 dBmEmitter, fiber type TransmitpowerReceivedsensitivityPower budget Maximum opticalinput power820 nm LED, Multimode –20 dBm –30 dBm 10 dB –7.6 dBm1300 nm LED, Multimode –21 dBm –30 dBm 9 dB –11 dBm1300 nm ELED, Single mode –23 dBm –32 dBm 9 dB –14 dBm1300 nm Laser, Single mode –1 dBm –30 dBm 29 dB –14 dBm1550 nm Laser, Single mode +5 dBm –30 dBm 35 dB –14 dBmThe power budgets are calculated from the manufacturer’s worst-case transmitter power and worst case receiversensitivity.The power budgets for the 1300 nm ELED are calculated from the manufacturer's transmitter power and receiversensitivity at ambient temperature. At extreme temperatures these values deviate based on component tolerance.On average, the output power decreases as the temperature is increased by a factor of 1 dB / 5 °C.Emitter, fiber type Cable type ConnectortypeTypical distanceBeforeJanuary2012FromJanuary2012820 nm LED,multimode62.5/125 μm ST 1.65 km 2 km50/125 μm ST 1.65 km 2 km1300 nm LED,multimode62.5/125 μm ST 4 km 5 km50/125 μm ST 4 km 5 km1300 nm ELED,single mode9/125 μm ST 11.4 km 20 km1300 nm Laser,single mode9/125 μm ST 64 km 65 km1550 nm Laser,single mode9/125 μm ST 105 km 125 kmTypical distances listed are based on the following assumptions for system loss. As actual losses vary from oneinstallation to another, the distance covered by your system can vary.Emitter, fiber type Cable type Transmit power ReceivedsensitivityPower budget Maximumoptical inputpower
