S2106X series optical time domain reflectometer is an upgraded version with larger display, higher operation speed and more friendly UI. It has rich external interface, which can realize remote control through Ethernet interface or two different USB interface for external USB flash drive, printer and data communication with PC.

Key Features

Wavelength range 850/1300/1310/1490/1550/1625 nm

Up to 45dB dynamic range, <1m ultra-short event blind zone, fiber jumper free

Internal 8GB storage, 2 USB ports

Built-in optical power meter (OPM)

Built-in fiber visual fault locator (VFL)

Built-in optical loss test (OLT)

Built-in intelligent optical network map (iONM)

One button automatic test, real-time and average test

Unique function for self-diagnosis on test result

7 inch color LCD capacitive touch screen, with CE operation system


    •  Higher operation speed, internal 8GB storage


    •  Larger display screen, 7 inch capacitive touch screen


    •  More friendly UI design, clear and convenient


    •  Integrated 7 functions, meet all your test requirements

  • OTDR Function

    •  OTDR trace analysis


    •  One button automatic test


    •  Auto/ Realtime/ Average test mode


    •  Client simulation analysis software, report printing

  • Convenient OTDR Settings

    •  More friendly interface display


    •  Pass/fail threshold setting


    •  Advanced and convenient test, analyse and save settings

  • Event Map Function

    •  Intelligent optical network map (iONM)


    •  Simplify link under test diagnosis


    •  Judge the connection status automatically


    •  Event graphic view and event list

  • Optical Power Meter Function

    •  High precision


    •  Measurement range (-50 dBm, +26 dBm)


    •  Universal joint FC/SC/ST port

  • Laser Source Function

    •  FP-LD laser source


    •  Long time stable output


    •  Output power ≥ -5 dBm

  • Visual Fault Locator Function

    •  Highly transparent red light


    •  Standard 10 mW output power


    •  Three output mode CW/ 1Hz/ 2Hz

  • Optical Loss Test Function

    •  Insertion loss measurement


    •  Visual operation steps on the interface


    •  OPM and LS results clearly displayed


    •  Multiple wavelength and optical power meter options

  • Optical Fiber End Detection Function

    •  Judge the optical fiber end condition


    •  Simple detection operation


    •  Optional USB handheld microscope probe


S2106X-S1/S2/S3/S4: 1310/1550 nm,

S2106X-T1: 1310/1490/1550 nm,

S2106X-T2: 1310/1550/1625 nm,

S2106X-F1: 1310/1490/1550/1625 nm,

S2106X-M1: 850/1300 nm,

S2106X-SM1: 850/1300/1310/1550 nm

Dynamic Range

•  S2106X-S1: 35/33 dB                   •  S2106X-S2: 38/36 dB

•  S2106X-S3: 42/40 dB                  •  S2106X-S4: 45/43 dB

•  S2106X-T1: 37/35/35 dB              •  S2106X-T2: 37/35/35 dB

•  S2106X-F1: 37/35/35/35 dB         •  S2106X-M1: 26/28 dB

•  S2106X-SM1: 26/28/35/33 dB

Event Blind Zone

•  S2106X-S1/M1/SM1: 1m

•  S2106X-S2/S3/S4/T1/T2/F1: 0.8m

Attenuation Blind Zone


Measuring Accuracy

± (0.75 + Sampling interval + 0.005% * Test distance) (Refractive error are not included)

Display Resolution


Test Range


Pulse Width


Sampling Point

16k – 256k

Sampling Resolution

0.05m – 16m

Loss Accuracy

± 0.05dB/dB

Loss Resolution


Reflection Accuracy

± 3dB


1.0 – 2.0

Loss Analysis

4-point method / 5-point method

File Format

SOR (standard format), PDF (analysis software)

Optical Interface

FC/UPC (Interchangeable SC, ST)

Laser Safety Level

Class II

Refresh Rate

3Hz (typ.)

2. OPM
Wavelength Range

800nm – 1700nm

Measurement Range

-50dBm to +26dBm


± 5%


Universal joint FC/SC/ST

Calibration Wavelength

850/980/1300/1310/1490/1550/1625/1650 nm

3. LS

Consistent with OTDR output wavelength

Output Power

≥ -5dBm


CW, ±0.5dB/15min

Laser Source



FC/UPC (Interchangeable SC, ST)

4. VFL

650nm ± 20nm

Output Power

≥ 10mW (standard)




FC/UPC (Interchangeable SC, ST)


7 inch color LCD capacitive touch screen, English interface

Data Storage

Internal: 8GB, External: 4GB

Data Interface

2 USB ports, Mini USB, 10M/100M Ethernet


7.4V / 5200mAh Lithium battery, max. 20 hours working time

Power Supply

AC /DC Adapter 100V-240V, 50/60Hz, 0.6A


227 (W) × 160 (H) × 70 (D) mm


≤ 1.2kg

Main Machine

Module No. Item Description
S2106X-S1 Optical Time Domain Reflectometer 1310/1550 nm, 35/33 dB, SM
S2106X-S2 Optical Time Domain Reflectometer 1310/1550 nm, 38/36 dB, SM
S2106X-S3 Optical Time Domain Reflectometer 1310/1550 nm, 42/40 dB, SM
S2106X-S4 Optical Time Domain Reflectometer 1310/1550 nm, 45/43 dB, SM
S2106X-T1 Optical Time Domain Reflectometer 1310/1490/1550 nm, 37/35/35 dB, SM
S2106X-T2 Optical Time Domain Reflectometer 1310/1550/1625 nm, 37/35/35 dB, SM
S2106X-F1 Optical Time Domain Reflectometer 1310/1490/1550/1625 nm, 37/35/35/35 dB, SM
S2106X-M1 Optical Time Domain Reflectometer 850/1300 nm, 26/28 dB, MM
S2106X-SM1 Optical Time Domain Reflectometer 850/1300/1310/1550 nm, 26/28/35/33 dB, SM/MM


Module No. Item Description
S2106-01 SFED-01 USB Handheld Optical Fiber Microscope For optical fiber end face detection (OFD) function

Standard Package

No. Item Qty.
1 OTDR Host 1 PC
2 AC/DC Power Adapter 1 PC
3 Data Line 1 PC
4 U Disk (Client Simulation Analysis Software) 1 PC
5 OTDR SC Adapter 1 PC
6 OPM SC Adapter 1 PC
7 User Manual 1 PC
8 Certificate of Quality 1 PC
9 Alcohol Clean Cotton Sheet 10 PCS
10 Leather Knob 1 PC
11 Special Backpack for Instrument 1 PC

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