Communications Specialties FIBERLINK XRD-8050/RK 사용자 설명서 - 페이지 15

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B. Check Optical Connectors

Is the correct connector being used for the type of fiber optic cable

employed? Some multimode connectors look the same as their single-

mode counterparts at first glance.

Are the ends of the connectors free from all dust or dirt? If not, gently

clean the ends with a clean cloth moistened with alcohol.

Is the fiber broken in the connector? A quick inspection with an

inexpensive 10X jeweler's loop can determine this.

Is the fiber protruding from the tip of the optical connector? If so,

refinishing will be necessary.

C. Check Fiber Optic Cable

Is the correct fiber size being used with the correct

transmitter/receiver combination?

Does the fiber optic cable have too much attenuation (loss) for the

system?

Does the fiber optic cable pass light at all? A small penlight type

flashlight can usually be used for this test.

Is the fiber optic cable pulled too tightly around a sharp corner?

D. Check Receiver (or receiving section of a transceiver)

Is the operating power (DC, AC, Voltages) correct?

Are the pins being used on the connector or terminal block correct?

Is light coming out of the fiber optic cable? This may be difficult to

see in many cases, but sometimes a very dim glow is present. Note

that you can only see 850nm light. Light at 1300nm is invisible.

Is the optical connector on the receiver clear of any obstruction or

minute dirt particles?

Does the fact that signal ground, power ground and the housing are

common cause a short-circuit anywhere in the system?