Data Sheet

10 Common Failure Diagnosis of OTDR product

z Common problems

Problem 1: Blank screen or cannot start up.

Possible reason: Electricity is used up.

Solving method: Charge the battery. Use AD-DC adapter to connect the equipment with

external power supply.

Problem 2: Button can’t work properly.

Possible reason: The button is damaged.

Solving method: change the button board

Problem 3: data saving aren’t allowed.

Possible reason: SD card is used up.

Solving method: Export the curve to empty the memory.

z Optical fiber connection problem

Improper optical fiber connection may lead to trace measurement failure, instructions are as

follows:

Problem 4: if the measured trace is as shown in Fig. 10-1:

Fig.10-1

Possible reasons:

①Using improper optical fiber jumper

joint

② The connector isn’t clean

③ The connector is ageing

Solving method:

① change the optical fiber

jumper

② Clean the connector

③ Change the connector