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Multi-Function Smart OTDR TOT520
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Multi-Function Smart OTDR TOT520

 TOT520 Mini Handheld OTDR Tester is designed for FTTH, FTTB, and FTTX solutions, featuring a dynamic range of 24dB/22dB, wavelengths of 1310/1550nm. It offers precise testing with an event blind spot of 2.5m and an attenuation blind area of 8m. Compact dimensions of 173mm*109mm*45mm make it portable and efficient for field use.
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Multi-Function Smart OTDR TOT520

TOT520 Mini Handheld OTDR Tester is designed for FTTH, FTTB, and FTTX solutions, featuring a dynamic range of 24dB/22dB, wavelengths of 1310/1550nm. It offers precise testing with an event blind spot of 2.5m and an attenuation blind area of 8m. Compact dimensions of 173mm*109mm*45mm make it portable and efficient for field use.

Physical indicators：

Ø 3.5-inch capacitive touch screen, TFT 800×480 resolution

Ø Minimum measurement: 2.5m

Ø Maximum testing 80km

Ø Type C USB interface

Ø Palm design, only 0.3 kg

Ø Lithium battery, standby time > for 20 hours

Technical indicators

Model No.TOT520DTOT520S1TOT520S2TOT520S3TOT520S4TOT520S5
Wavelength: nm1310/155013101550161016251650
Dynamic Range24/22dB24dB22dB22dB22dB22dB
Fiber typeG.652, G.657
Event dead zone< 2.5m
Attenuation dead zone< 8.0m
Measuring range100m 500m 1km 2km 5km 10km 20km 40km 60km 80km
Pulse width5ns, 10ns, 20ns, 50ns, 100ns, 200ns, 500ns, 1μs, 2μs, 5μs, 10μs, 20μs
Accuracy±(1m+sampling interval+0.005*measuring range)
Linearity0.2dB/dB
Sampling pointsMaximum 64000
Sampling resolution25cm ~ 8m
Loss resolution0.001dB
Range resolution0.001m
Refractive index1.0000~2.0000
Reflection accuracy±3dB
Safety levelClass IIIB
File format.sor
Memory>1000，support external SD
Data interfaceUSB Type C
ConnectorSC/FC/ST
Screen3.5-inch TFT-LCD
Battery3.7V/4000mAh
TemperatureWorking temperature：-10℃~+50℃；

Storage temperature：-40℃~+70℃

Humidity≤90%（No condensation）
Size/Weight170x120x30mm / 0.34kg（Include the battery）
OPMType A：+10dBm~-70dBm;Type B：+26dBm~-50dBm
VFL10mW，CW/2Hz
LS(Laser Source)1310/1550nm, output power：-5dBm
Rj45 testSupport network wire sequence testing and wire alignment

Easy and accurate testing

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