| Attribute Name | Attribute Value |
| Modulated output (source) | 270 Hz, 1 kHz, 2 kHz +- 2 %, 12 Multi-Fiber ID tones |
| Output wavelength (source) | Port 1: 1310, 1550 nm Laser APC / Port 3: 850, 1300 nm LED |
| Output power (source) | -7 dBm +-1 dB ( at 9/125 um for 1310, 1550 m) / -27 dBm +-1 dB ( at 62.5/125 um for 850, 1300 nm) |
| Adjust output power (source) | Adjustable over 7 dB in 0.01 dB steps (for 1310, 1550 nm) / Fixed (for 850, 1300 nm) |
| Wavelength initial tolerance at 25 °C (source) | 20 nm (for 1310, 1550 nm) |
| Short term stability for 15 min, typical +-2 °C, after warm up, ORL < -25 dB (source) | 0.04 dB (for 1310, 1550 nm) / 0.01 dB (for 850, 1300 nm) |
| Stability over temperature (source) | 0.6 dB (max for 1310, 1550 nm) / 0.35 dB (max for 850, 1300 nm) |
| Spectrum width at FWHM (source) | 3 nm (typical for 1310, 1550 nm) |
| Wavelength drift (source) | 0.4 nm per °C (typical for 1310, 1550 nm) / 0.4 nm per °C (typical for 850, 1300 nm) |
| Mode controlled (source) | 850, 1300 nm (50/125um compliant: IEC 61280-4-1 {Ed.1.0}, TIA 526-14A & TIA TSB-178) |
| Reconnection repeatability at 95% confidence (source) | 0.1 dB (for 1310, 1550 nm Laser) / 0.05 dB (for 850, 1300 nm LED) |
| Length range (2-way Autotest only) | 27 dB (for 1310, 1550 nm) / 4.5 dB at 62.5um (for 850, 1300 nm) |
| Length accuracy (2-way Autotest only) | 0.01% +- 4 meters |
| Length resolutions | 1 meter (0.000~9.999 Km), 10 meters (10.00~99.99 Km), 100 meters (100.0~127.9 Km) |
| Loss range (2-way Autotest) | 44 dB (for 1310, 1550 nm) / 24 dB at 62.5 um (for 850, 1300 nm) |
| Loss repeatability & loss linearity (2-way Autotest) | 0.04 dB (for 1310, 1550 nm) / 0.06 dB (for 850, 1300 nm) |
| Loss range (1-way Autotest) | 44 dB (for 1310, 1550 nm) / 24 dB at 62.5 um (for 850, 1300 nm) |
| Loss repeatability & loss linearity (1-way Autotest) | 0.04 dB (for 1310, 1550 nm) / 0.06 dB (for 850, 1300 nm) |
| VisiTester wavelength | 650 +- 5 nm |
| VisiTester power | 0 dBm +- 1 dB at SMF |
| VisiTester laser safety | Class 1, IEC60825-2 |
| VisiTester blink rate (manual) | CW or 2 Hz |
| Detector type (meter) | InGaAs |
| Response wavelength (meter) | 600 ~ 1700 nm |
| Calibration wavelengths (meter) | 780, 820, 850, 980, 1270, 1290, 1300, 1310, 1330, 1350, 1370, 1390, 1410, 1430, 1450, 1470, 1490, 1510, 1530, 1550, 1570, 1590, 1610, 1625, 1650 nm |
| Power range (meter) | +10 ~ -60 dBm (780 ~ 980, 1590 ~ 1650 nm) / +10 ~ -70 dBm (1270 ~ 1650 nm) |
| Accuracy (meter) | 1 % (0.06 dB) |
| Mid-range linearity (meter) | 0.04 dB (typical) |
| Total uncertainty (meter) | 0.3 dB (max) |
| ID tone detection & Autotest sensitivity (meter) | Up to -50 dBm |
| Resolution (meter) | 0.01 dB |
| Polarization sensitivity (meter) | < 0.05 dB (typical) |
| Tone detection (meter) | 150 ~ 9999 Hz +- 1 % |
| Autotest | 1-way: compatible with other T23400 & T27400 models / 2-way: compatible with identical model only |
| USB interfaces | USB-micro for power & software / USB-A Flash Drive |
| Software | KITS (free download) |
| Power | Battery / External power via micro-USB |
| Battery life | Laser/LED source: 80 hours (typical) in Autotest, Power Meter: 1000 hours (typical) |
| Battery type | 2x AA (LR6) Alkaline / 2x AA NiMH AA (rechargeable via micro-USB) |
| Auto off | Selectable |
| Display | 74 mm x 55 mm high contrast LCD |
| Case | Polycarbonate (body) / rubber (edges & corners), moisture resistance, 1-meter drop tested |
| Memory | For 8,000 fibers / Unlimited on USB Flash Drive |
| Size | 190 mm x 105 mm x 35 mm |
| Unit weight | 0.42 kg |
| Shipping weight | 1.5 Kg |
| Operating / storage temperature | -15 to 55 °C / -25 to 70 °C |
| Relative humidity | 0 ~ 95 % |
| Calibration validity (ISO/IEC 17025) | 3 years |
