TABLE OF CONTENTS This chapter explains the basic operation and application of the essential fiber optic test equipment available to the fiber optic installer and technician. The basic theory, operation, and application of each piece of test equipment will be explained. Many of the test methods described in this chapter are based on current industry standards. How to test to these standards is described in detail.
The continuity tester is a basic and essential tool for every fiber optic toolkit. It is also one of the least expensive tools in your toolkit. This low-cost tool will allow you to quickly verify the continuity of an optical fiber.
The continuity tester is basically a modified flashlight. Many of the continuity testers available today are just that, modified flashlights. Some flashlights, such as the one pictured in Figure 15.1, have been modified to use an LED instead of an incandescent lamp. Others may just receive a brighter incandescent lamp, like the tester pictured in Figure 15.2.
The job of the continuity tester is to project light from the LED or incandescent lamp into the core of the optical fiber. This is typically accomplished by attaching a receptacle to the lamp end of the flashlight. The receptacle is designed to center and hold the connector ferrule directly above the LED or incandescent lamp. When the connector ferrule is inserted into the receptacle, the endface is typically just above the light source. This approach eliminates...
