| Wavelengths (nm)a | 1310 ± 20/1550 ± 20/1625 ± 15 |
| Dynamic range at 20 µs (dB)b, c | 1310/1550 model: dynamic range = 46/46 dB 1310/1550/1625 model: dynamic range = 45/45/45 dB |
| Event dead zone (m)d | 0.5 |
| Attenuation dead zone (m)e | 2.5 |
| Distance range (km) | 0.1 to 400 |
| Pulse width (ns) | 3 to 20 000 |
| Linearity (dB/dB)a | ±0.03 |
| Loss threshold (dB) | 0.01 |
| Loss resolution (dB) | 0.001 |
| Sampling resolution (m) | 0.04 to 10 |
| Sampling points | Up to 256 000 |
| Distance uncertainty (m)f | ±(0.75 + 0.0025 % × distance + sampling resolution) |
| Measurement time | User-defined (maximum: 60 minutes) |
| Typical real-time refresh (Hz) | 4 |
| Stable source output power (dBm)g | 1.5 |
| Reflectance (dB)a | ±2 |
| a. Typical. b. Typical dynamic range with a three-minute averaging at SNR = 1. c. The SM1 model can obtain a 50 dB dynamic range with a G.655 fiber with a 30 minutes averaging time. d. Typical for reflectance from –35 dB to –55 dB, at 3-ns pulse. e. Typical at 1310 nm, for reflectance at –55 dB. Attenuation dead zone is 3.5 m typical at 1310 nm with reflectance below –45 dB. f. Does not include uncertainty due to fiber index. g. Typical output power value at 1550 nm. All specifications valid at 23 °C ± 2 °C with an FC/APC connector, unless otherwise specified. | |
| Size (H × W × D) | 158 mm × 24 mm × 174 mm (6 ¼ in × 15/16 in × 6 7/8 in) |
| Weight | 0.4 kg (0.9 lb) |
| Temperature, operating | Refer to platform’s specification sheet |
| Temperature, storage | –40 °C to 70 °C (–40 °F to 158 °F) |
| Relative humidity | 0% to 95% non-condensing |
| Warranty (year) | 1 |