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| | Model | MT9081A/A1 | MT9081B/B1 | MT9081C/C1 | MT9081D/D1 | MT9081E/E1 | MT9081F/F1 | |
| | Wavelength | 1310 ±30 nm*1 | 1550 ±30 nm*1 | 1645 to 1655 nm*1*2 | 1310/1550 ±30 nm*1 | 1550 ±30 nm/ 1645 to 1655 nm*1-*2 | 1310/1550 ±30 nm/ 1645 to 1655 nm*1-*2 | |
| | Measurable optical fiber | 10/125 urn single-mode optical fiber (ITU-T G.652) | |
| | Optical connector | FC, SC, DIN, HMS-10/A, ST, LC (replaceable, PC type) FC, SC (APC type) | |
| | Distance range | 0.5, 1, 2.5, 5, 10, 25, 50, 100, 200 km | |
| | Pulse width | 3 ns, 10 ns, 20 ns, 50 ns, 100 ns, 200 ns, 500 ns, 1 us, 2 us, 4 us, 10 us, 20 us | |
| | Dynamic range*3'*4'*5 (S/N = 1) | 38.5 dB (1.31 um) | 37 dB (1.55 um) | 33.5 dB (1.65 um) | 38 dB (1.31 um) 36.5 dB (1.55 um) | 36 dB (1.55 um) 33.5 dB (1.65 um) | 37.5 dB (1.31 um) 36 dB (1.55 um) 33.5 dB (1.65 um) | |
| | Dead zone*6 (back-scattered light) (lOR = 1.500000) | <7.0 m (1.31 um) | <8.0 m (1.55 um) | <11 m (1.65 um) | <7.0 m (1.31 um) <8.0 m (1.55 um) | <8.0 m (1.55 um) <11 m (1.65 um) | <7.0 m (1.31 um) <8.0 m (1.55 um) <11 m (1.65 um) | |
| | Dead zone*7 (back-scattered light) (lOR = 1.500000) | <5.0 m (1.31 um) | <5.5 m (1.55 um) | <6.5 m (1.65 um) | <5.0 m (1.31 um) <5.5 m (1.55 um) | <5.5 m (1.55 um) <6.5 m (1.65 um) | <5.0 m (1.31 um) <5.5 m (1.55 um) <6.5 m (1.65 um) | |
| | Dead zone*8 (Fresnel reflection) (lOR = 1.500000) | <1 m <0.8 m (Typ.) | |
| | Marker resolution (lOR = 1.500000) | 0.05 to 400 m | |
| | Sampling resolution (lOR = 1.500000) | 0.05 to 40 m | |
| | Sampling points | Normal: 5001 High density: 20001 or 25001 *9 | |
| | Y-axis scale | 0.05, 0.125, 0.25, 0.5, 1.25, 2.5, 5, 6.5 dB/div | |
| | lOR settings | 1.000000 to 1.999999 (0.000001 steps) | |
| | Distance measurement accuracy | ±1 m ±3 x measurement distance x 10-5 ±marker resolution (excluding uncertainty caused by fiber IOR) | |
| | Loss measurement accuracy (linearity) | ±0.05 dB/dB or ±0.1 dB (whichever is greater) | |
| | Return loss measurement accuracy | ±2 dB | |
| | Automatic measurement*10 | Fault locate: Events judged as a failure are displayed sequentially from the first possible event. The distance of the possible event point, Total loss or Splice loss, and event type are displayed at the upper right of the wavelength display screen. Measurement items: Total loss, Total return loss or Average loss Each event distance, Connection loss, Return loss or Reflection amount, Total return loss or Average loss (displays in table format) Threshold values Connection loss: 0.01 to 9.99 dB (0.01 dB steps), Return loss: 20.0 to 60.0 dB (0.1 dB steps), Fiber-end: 1 to 99 dB (1 dB steps) Number of detected events: Up to 99 Automatic setting: Distance range, Pulse width, Averaging count (time) Connection check: Automatic check of front panel connector connection quality Communication light check: Check for presence of communication light in optical fiber to be measured (>-40 dBm) | |
| | Manual measurement | Measurement items: Transmission loss and distance between 2 points, Loss per unit length between 2 points, Connection loss, Return loss or difference of levels Real-time sweep: 0.2 second or less (sampling mode: Normal) | |
| | Light source for identification tester | Applicable fiber: SM fiber (ITU-T G.652), PC type Optical connector: Shared with OTDR (same port) Light emission element: FP-LD Central wavelength*11: 1310 ±30 nm (MT9081A/A1/D/D1/F/F1) 1550 ±30 nm (MT9081B/B1/D/D1/E/E1/F/F1) 1650 ±5 nm (MT9081C/C1/E/E1/F/F1) Optical output power*12: -5 dBm or more Optical output waveform: CW/270 Hz/1 KHz/2 KHz (Modulation light is square wave) Modulated frequency: 270 Hz/1 KHz/2 KHz ±1.5% Warm-up time: 10 minutes (after turning optical output On) Laser safety specification: 21CFR Class 1, IEC 60825-1 Class 1 | |
| | Optical power meter | Applicable fiber: SM fiber (ITU-T G.652) Wavelength setting: MT9081A/A1/B/B1/D/D1 (1310/1550 nm port): 1310/1550/1625/1650 nm MT9081C/C1/E/E1/F/F1 (1310/1550 nm port): 1310/1550/1625 nm (Wavelength range 1650 to 1625nm) MT9081C/E/F (1650 nm port): 1650 nm (Wavelength range 1650±5nm) Optical connector: Shared with OTDR, Optical power: -50 to -5 dBm (peak power), Absolute maximum rated input: +10 dBm Measurement accuracy: ±6.5% (-20 dBm, CW light, 23'C ±2'C, after executing zero offset, Wavelength 1550 nm) | |
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