CHAPTER 2: PRODUCT DESCRIPTION SPECIFICATIONSG30 GENERATOR PROTECTION SYSTEM – INSTRUCTION MANUAL 2-3522.5.9 Inter-relay communicationsSHIELDED TWISTED-PAIR INTERFACE OPTIONSLINK POWER BUDGET AND MAXIMUM OPTICAL INPUT POWERThe following specifications apply to filter interface modules manufactured from January 2012.The following specifications apply to filter interface modules implemented before January 2012.Interface type Typical distanceRS422 1200 mG.703 100 mRS422 distance is based on transmitter power and does not take into consideration the clock source provided bythe user.Emitter, fiber type Cable type Transmit power ReceivedsensitivityPower budget Maximumoptical inputpower820 nm, Multimode 62.5/125 μm -16 dBm -32 dBm 16 dBm -8 dBm50/125 μm -20 dBm 12 dBm1300 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.