General (Typical at 25°C)
Weight	1.26kg
Dimensions (w × h × d)	128 x 134 x 40mm
Optical Interfaces
Interchangeable optical connectors	FC, SC, DIN, and ST
Technical Characteristics
Laser safety class (21 CFR)	Class 1
Distance units	Kilometers, feet, and miles
Group index range	Up to 128,000 data points
Number of data points	Up to 128,000 data points
Distance measurement	Automatic or dual cursor
Display range	3.25m to 260km
Cursor resolution	1cm
Sampling resolution	4cm
Accuracy	± 1m ± 10-5 x distance, ± sampling resolution, (Excluding group index uncertainties)
Attenuation Measurement
Automatic, manual, 2-point, 5-point, and LSA
Display range	1.25dB to 55dB
Display resolution	0.001dB
Cursor resolution	0.001dB
Linearity	±0.03dB/dB
Threshold	0.01 to 5.99dB in 0.01dB steps
Reflectance/ORL Measurements
Reflectance accuracy	±2dB
Display resolution	0.01dB
Threshold	11 to −99dB in 1dB steps
CW Source
CW Source output power level	−3.5dBm
Operating modes	CW, 270Hz, 330Hz, 1kHz, 2kHz, TWINTest
Power Meter
Power level range	MM: −3 to −30dBm, SM: −2 to −50dBm
Calibrated wavelengths	MM: 850 and 1300nm, SM: 1310, 1490, 1550, 1625, and 1650nm
Measurement accuracy	MM1: ±1dB (At -15dBm), SM: ±0.5dB (At -30dBm)
Multimode and Quad OTDR Modules (Typical at 25°C)
Central wavelength	850/1300 ±30nm, 1310/1550 ±20nm
Pulse width	3ns to 1μs, 3ns to 20μs
RMS dynamic range	26/24dB, 37/35dB
Event dead zone	0.8m, 0.9m
Attenuation dead zone	4m, 4m