OLT-20 Optical Loss Tester integrates laser source module and power meter module in one set, which can perform power testing and link loss testing in opticl fiber network conveniently. The typical applications include fiber identification, attenuation and loss measurement, continuity verification and fiber link transmission quality evaluation for installation, routine inspection and daily maintenance of MAN, WAN and CATV systems as well as for lab test and research work.
●Applicable on singlemode/multimode fibers
●Microprocessor & linear amplifier ensure long-time accuracy
●Quick response, no warm-up
● Interchangeable connectors: FC/SC/ST
●Dual-way power supply: 9V alkaline battery/AC adapter
●Pocketsize, large LCD display
● Multi-wavelength measurement
●Display units: dB/dBm/mW/µW
●Link loss testing
● CW/Modulation mode (270/1K/2K Hz)
●Low power indication/Auto off
●CE, FCC, FDA certificates
Model |
OLT-20 |
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A |
B |
C |
D |
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Laser Source Module |
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Wavelength (±20nm) |
1310/1550 |
850/1300 |
1310/1550 |
850/1300 |
Output Power |
≥ -7dBm |
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Spectral Width |
≤ 5nm |
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Emitter Type |
FP-LD |
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Stability |
±0.05 dB/15min ±0.10dB/8hr@1310/1550nm; ±0.15dB/8hr@850/1300nm |
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MOD Frequencies |
270, 1K, 2K Hz |
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Connector Type |
FC/PC (Interchangeable ST, SC) |
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Optical Power Meter Module |
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Detector Type |
InGaAs |
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Measurement Range |
-70 ~ +10dBm (1) |
-50 ~ +27dBm |
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Accuracy |
± 5% ± 0.01nW (±0.5dB@850nm) |
±5%±1nW(±0.5dB@850nm) |
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Resolution |
0.01dB |
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Calibrated Wavelength(2) |
850, 1300, 1310,1490, 1550, 1625nm |
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General Specifications |
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Power Supply |
9V Alkaline battery / optional 9V AC adapter |
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Battery Life |
OPM mode≥40 hours; OPM+SLS mode≥20 hours |
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Operating Temperature |
-20℃ to 50℃ |
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Storage Temperature |
-40℃ to 70℃ |
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Relative Humidity |
0 to 95% (Non-condensing) |
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Weight |
300g |
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Dimension (H×W×T) |
145×75×25mm |
Note: (1) At 850nm, the lower limit of measurement range is -60 dBm;
(2) Other wavelengths are open for customization.
* Specifications subject to change without notice
Ordering information
Standard Configuration:
Instrument, 9V alkaline battery, Rubber boot, Warranty card, CE certificate, Certificate of Calibration, User's manual
Optional Parts
Part Description |
Part Number |
Part Description |
Part Number |
3m, optical patch cord |
AC-FJC-03-FC/FC |
Ceramics core for LS |
AC-FRL-C |
SC connector for LS |
AC-CONN-SC-L |
SC connector for PM |
AC-CONN-SC-P-300 |
ST connector for LS |
AC-CONN-ST-L |
ST connector for PM |
AC-CONN-ST-P-300 |
AC adapter for US |
AC-ADPT-10-US |
Compact soft carry bag |
AC-PB-10 |