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Single Mode OTDR (Optical Time Domain Reflectometer)
| Measurement Range |
Model 3100 & Model 313 |
Model 3100 & Model 315 |
| One way loss limit for Fresnel (fiber end)
reflection |
33 dB |
32.5 dB |
| One way loss limit for Rayleigh backscatter |
18 dB |
16.5 dB |
| Wavelength |
1310 (±20) nm |
1530 (±30) nm |
Operating Modes
| Operating Mode |
Pulse Rate |
Pulse Width |
Data Storage |
Averaging Time |
Noise Reduction |
50 km
Range Limit |
2 kHz |
250 m |
50 km |
5 sec
52 sec |
19 dB
23 dB |
100 km
Range Limit |
1 kHz |
250 m |
50 km |
10 sec
104 sec |
19 dB
23 dB |
| Hi Res |
determined by range limit |
50 m |
12.5 km |
determined by range limit |
20 dB |
| Free Run |
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5 waveforms per sec |
12 dB |
- Distance Measurements
Distance Readout Resolution: 1 meter (1 ft)
Refractive Index Range: 1.400 to 1.500
- Loss Measurements
Loss Readout Resolution: .01 dB
Signal Acquisition Range: 42 dB (one way fiber loss)
- Display
Vertical Scales: 5, 1, 0.5 dB/div one-way loss
Vertical Total Divisions: 5
Horizontal Scales:
* Normal Resolution: 4000, 2000, 1000, 500, 200 m/div
* High Resolution: 1000, 500, 200, 100, 50 m/div
* Total Divisions: 10
- Interface: GPIB IEEE-488 (talker, listener)
- Physical Characteristics:
Weight: approx. 35 lb (16 kg)
Size: 7.1" x 16.4" x 20.8" including front cover
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