Industrial Fiber Optics IF-FOM Скачать руководство пользователя страница 3

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Previous Printings, 2006, 2001, 1997

by Industrial Fiber Optics, Inc.

Revision D

Printed in the United States of America

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stored in a retrieval system, or transmitted in any form or by any means

(electronic, mechanical, photocopying, recording, or otherwise)

without prior written permission from Industrial Fiber Optics.

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Содержание IF-FOM

Страница 1: ...ss mainly focus on the distribution of electronic components Line cards we deal with include Microchip ALPS ROHM Xilinx Pulse ON Everlight and Freescale Main products comprise IC Modules Potentiometer...

Страница 2: ...Fiber Optic Test Set Operator s Manual INDUSTRIAL FIBER OPTICS Model Number IF FOM...

Страница 3: ...nted in the United States of America All rights reserved No part of this publication may be reproduced stored in a retrieval system or transmitted in any form or by any means electronic mechanical pho...

Страница 4: ...Industrial Fiber Optics makes every effort to incorporate state of the art technology highest quality and dependability in its products We constantly explore new ideas and products to best serve the...

Страница 5: ...ii...

Страница 6: ...HECK OUT 7 OPERATING PROCEDURE 8 Reading the Display 8 Connecting Cables to the ST Receptacles 8 Measuring Power from a Fiber Optics 9 Measuring Attenuation in Optical Fiber 11 LOGARITHMS dB MEASUREME...

Страница 7: ...Test equipment is important for any practical application of technology and fiber optic communications is no exception While the principles used to test communication systems are similar the actual e...

Страница 8: ...operated allowing portable use in the field and lab Front Panel Controls On Off Switch The ON OFF SWITCH is a push on push off switch that applies power to the test set Pressing the switch will activ...

Страница 9: ...negative reading with no light on the radiometer the Zeroing procedure in the section titled SERVICE AND MAINTENANCE should be performed Receptacles Detector The receptacle labeled DETECTOR contains t...

Страница 10: ...ion titled SERVICE AND MAINTENANCE Battery types suggested for use with this test set include standard heavy duty and alkaline 9 volt batteries Part numbers from major manufacturers are shown in Table...

Страница 11: ...950 nanometers nm Measurement ranges full scale 19 99 W 199 9 W 1 999 mW 19 99 mW 10 Accuracy 10 LED LIGHT SOURCE Nominal wavelength 660 nm Output power 0 25 mW nominal 0 85 mW max Emitting area 0 078...

Страница 12: ...n be used in conjunction with lasers and other high intensity light sources it is recommended that safe operating procedures be followed Never stare directly at a laser or other potential source of hi...

Страница 13: ...ctor down into the receptacle and twist until it is locked into position 7 Observe the digital LCD display and note if the reading is zero 0 02 W Note Do not press the LED ACTIVATION button during thi...

Страница 14: ...connector an un connectorized plastic fiber cable or a bare fiber ST connectors are available for a variety of fiber cable core cladding sizes When attaching a connector to a fiber optic cable follow...

Страница 15: ...Zeroing procedure Remove the protective cap 3 Set the DISPLAY SELECTOR SWITCH to 20 mW or the highest expected power to be measured Set the WAVELENGTH switch to the closest value of wavelength for the...

Страница 16: ...wise more sensitive scale until the display gives a maximum reading without over ranging Note the reading in W or mW and compare it to the expected power level Optical power is often specified in unit...

Страница 17: ...amplify weak signals and restore the power to a level high enough to send the signal down the next link By knowing the attenuation and other losses in fiber optic cable links a designer can budget the...

Страница 18: ...select 650 nm 4 If you are using the built in LED remove the protective cap from the receptacle then insert one end of the connectorized cable Otherwise install one end of the cable into the external...

Страница 19: ...VATION button and allow one minute for the source to stabilize If you are using an external optical source turn it on and make any adjustments necessary to set the power level 10 Observe the LCD displ...

Страница 20: ...since one power level is ratioed to another with no indication of the absolute power in the reading You can see that the dB scale shows large power variations with small changes in the displayed read...

Страница 21: ...is properly inserted and locked in place Check source side of fiber optic cable DISPLAY SELECTOR SWITCH is set at too high a range Turn switch counter clockwise until reading is obtained Batteries may...

Страница 22: ...e holder terminal connections 4 Remove any protective packaging from the replacement battery 5 Line up the replacement battery terminals to ensure proper polarity in the holder then securely push the...

Страница 23: ...Test Set is factory adjusted to deliver reasonable power with good battery life After this adjustment the transmission of the fiber optic test cable is measured using the test set LED and radiometer T...

Страница 24: ...If a different power level is desired adjust the potentiometer until the display reads an appropriate fraction of the calibration value For example if you want to double the LED power from the factor...

Страница 25: ...nty repair within the continental United States by United Parcel Service or Parcel Post Any other delivery means must be paid for by the customer The costs of return shipments for a Fiber Optic Test S...

Страница 26: ...ore than five days after delivery may not be honored If damage has occurred during shipment please do the following Make a note of the carrier company the name of the carrier employee who delivered th...