Description Light sources are part of the toolbox essentials working in pair with power meters to measure the optical attenuation and eliminate the faults when telecom technicians install or maintain optical fiber networks. GreenTel OS-15 light sources are well designed for first-class versatility With a rugged design,Website:http://www.greentelfttx.com, OS-15 light sources are built for top ruggedness, perfect for the harshest test conditions to verify the continuity and evaluate fiber link transmission quality.Features ● 2-3 wavelengths output on a single port● High stabilization, built-in optic isolator● 270, 1000, 2000 Hz Tone● Auto-Wave ID output(when work with GreenTel power meter OM-15)● Back lighting LCD screen● Energy save mode● Power autonomy of 16 hours● One-year warranty and Three-year recommended calibration intervalSpecification Optical Light Source - OS-15 Parameter ModelOS-15SOS-15MOS-15TWavelength(nm)1310/1550850/13001310/1490/1550Stabilization *0.05dB / 1 hour; 0.1dB / 8 hoursOutput Power> - 5dBm +/- 0.5dB (Laser: Class I)Modulation270Hz, 1KHz, 2KHzConnectorDefault SC/UPC adaptor (additional FC/UPC adaptor with 2.5mm universal head)Auto Power OffNo operation in 10 minutes , Low battery energySpectral Width3nm typical valueWave IDYes ( when working in pair with GreenTel OM-15 series power meter)Battery ChargeAA * 2 batteries or AC/DC power supply adapterOperate TimeAbove 16 hoursPower SupplyInput: AC 100-240V,50-60Hz / Output: DC 5V/550mASize(H*W*D)150mm * 55mm * 35mmWeightAbout 150gStorage Temperature-20  to  +70℃ ,<90% RHOperating Temperature-10  to  +50℃ ,<90% RH* After 5 minutes warm-up, 20.3 degrees, CW, FC connector, with optic isolatorStandard Package①OS-15 main body*1②Nylon bag and the Q/C certificate*1③Additional FC adaptor*1④Operation Manual*1⑤Paper BoxOptional Items⑥ST Adaptor ⑦Male to Female LC Adaptor ⑧Power Charging Circuit (modification on meter)⑨Power Charging USB Cable and AC/DC Power AdapterOrdering InformationOS-15X(1)OS-15S: SM(1310/1550nm)(2)OS-15M: MM(850/1300nm)(3)OS-15T: SM(1310/1490/1550nm)