Fluke Series II Test Fiber Optic Cable, Ensuring Accurate Measurements, Setting a Reference, 4-10

OneTouch Series II

Users Manual

Test Fiber Optic Cable

This section describes how to use the Network Assistant with a Fluke Fiber Optic Meter (FOM) to test fiber optic cable. You can measure optical loss and output power on multimode or singlemode cable.

The fiber tests require the following:

AFluke DSP-FOM (Fiber Optic Meter; See "Placing Orders and Getting Assistance" in Chapter 1 for ordering information.)

A multimode fiber optic source, such as is included with the Fluke DSP-FTK (Fiber Test Kit)

Two fiber optic patch cables (provided with the DSP- FOM and DSP-FTK)

Network Assistant software version 2.XX, or later (Read "Updating Software" in the Getting Started Manual for information on software updates.)

WWarning

Never look directly into the fiber optic source connector or attempt to adjust or modify the source. Doing so might expose you to hazardous LED radiation.

See the instruction sheet provided with the DSP- FOM/FTK for specifications and maintenance information for the fiber optic meter and source.

Ensuring Accurate Measurements

To help ensure accurate fiber measurements, do the following:

Clean all fiber connectors before testing.

Before using the optical source, turn it on and let it stabilize for 2 minutes.

Setting a Reference

Before measuring a cable’s optical loss, set a reference level by measuring the loss in the fiber patch cables and connectors, as follows:

1.Make the connections shown in Figure 4-8. Use the same type of cable as the cable to be tested.

2.From the Network Assistant’s top level display, press (AutoTest). The Network Assistant detects the active fiber optic meter and the meter’s wavelength setting and displays the fiber test results (Figure 4-7).

Press (Set Ref) from the Network Assistant’s fiber test display.

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