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OTM-20 Installation and Operation Handbook

A-1

Appendix A

♦

Specifications

Power Meter Specifications

Measurement Range (dBm)

-70 ~ + 10 for model A

-50 ~ + 27 for model C

Wavelength (nm)

850, 1300, 1310, 1550 for model A

980, 1310, 1480, and 1550 for Model C

Detector Type

InGaAs

Accuracy

±0.25 dB @ 25°C & -10dBm

Resolution

0.001 dB

Data Storage

4000 Measurements

Laser Source Module Specifications

Emitter Type

Wavelength (nm)

1310/1550

Output Power

≥

-7 dBm

Spectral Width (nm)

≤

Stability

Short Time: ±0.05 dB/15 min

Long Time: ±0.10 dB/8 hr @ 1310/1550nm

Modulation Frequency

270/1K/2KHz

Connector Type

FC/PC (input only SC, ST)

Содержание OTM-20

Страница 1: ...site preparation or maintenance or attempts by personnel other than authorized Videotek representatives to repair or service the product No other warranty is expressed or implied Videotek specificall...

Страница 2: ...THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS YOU MAY HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE Disclaimer of Damages REGARDLESS OF WHETHER ANY REMEDY SET FORTH HEREIN FAILS OF ITS ESSENTIAL P...

Страница 3: ...he Installation Instructions Units of Protection Class I with an AC supply cable and plug that can be disconnected must be operated only from a power socket with protective ground contact Do not use a...

Страница 4: ...f equipment sold before July 1 2006 are exempt from the legislation Leitch equipment that complies with the EU directive will be marked with a RoHS compliant symbol as shown in Figure 1 Figure 1 RoHS...

Страница 5: ...OTM 20 Installation and Operation Handbook Figure 2 WEEE Compliance Symbol...

Страница 6: ...OTM 20 Installation and Operation Handbook Blank Page...

Страница 7: ...ration Panel 3 1 GUI 3 2 LCD Contrast 3 2 Power Meter and Laser Source Interface 3 2 GUI Display 3 3 Wavelength 3 4 Menu Configuration and Measurement Operation 3 4 Power Meter 3 5 W dBm 3 5 Reference...

Страница 8: ...n Requirements 5 2 Appendix A Specifications Power Meter Specifications A 1 Laser Source Module Specifications A 1 Mechanical A 2 Environmental A 2 Index Figures Figure 1 1 The OTM 20 1 2 Figure 2 1 O...

Страница 9: ...5 Figure 3 26 Manual Configuration of Loss 3 16 Figure 3 27 Auto Test in Process 3 16 Figure 3 28 Report of Auto Test Result 3 17 Figure 3 29 Recall Menu 3 17 Figure 3 30 Recall Records 3 18 Figure 3...

Страница 10: ...Contents OTM 20 Installation and Operation Handbook iv Blank Page...

Страница 11: ...for both single mode and multi mode fiber checkouts This manual contains the information necessary for the proper operation and maintenance of the Harris Optical Test Meters It also provides troublesh...

Страница 12: ...ns are not adopted or the user fails to obey the special warning in other parts of this manual Harris will not take any responsibility for the results caused by not following these requirements Safety...

Страница 13: ...er Radiation To avoid serious eye injury never look directly into the optic outputs of the fiber optic network equipment test equipment patch cords or test jumpers Always avoid looking directly into t...

Страница 14: ...r An explanation of the problem To prevent shipping damage pack the unit the same way Videotek had packed it If possible use the original packing materials in the original shipping container Ship the...

Страница 15: ...support see Section 1 Service and Support NOTE Refer to the enclosed packing sheet for the latest list of items that are supplied with the unit The box contains the following One OTM 20 with protecti...

Страница 16: ...attery used for the Harris OTM 20 is the NiMH battery Cautions during Operation Auto Power Off occurs under the following conditions The instrument will be auto power off when there is insufficient po...

Страница 17: ...n the Laser Source interface and the Power Meter interface Set Press to enter the Main menu The Main menu is used to configure system parameters Store Saves measurements and results from auto test Bac...

Страница 18: ...button through the following procedures Power on the instrument the GUI is displayed as shown in Figure 3 2 Press the button and the contrast will be increased Press button and the contrast will be re...

Страница 19: ...power value will be displayed 3 Modulation Frequency In the Laser Source mode the modulation frequency or CW will be displayed In the Power Meter mode the modulation frequency of 270 1000 or 2000 Hz...

Страница 20: ...f no buttons have been pressed for 5 minutes the instrument will automatically turn off for the benefit of conserving battery life Wavelength In the Power Meter or Laser Source modes the wavelength ca...

Страница 21: ...re 3 6 Power Meter Configuration Menu The Power Meter menu includes the menu selections W dBm Reference Precision Average Buzzer Auto Trace Zero Scale After the configuration is complete press the QUI...

Страница 22: ...he unit of measure to display automatically Reference In the Power Meter menu press the buttons to scroll through the menu bar and select Reference Press ENTER to enter the configuration as shown in F...

Страница 23: ...ence menu press to select Ref On Off and press ENTER to activate or deactivate the relative measurement When appears the function is activated When disappears the function is deactivated A sample scre...

Страница 24: ...ion is saved after the unit is powered off 0 01dB is the default value Average The Average menu has the following menu selections Average Off 10 Samples 50 Samples and 100 Samples as shown in Figure 3...

Страница 25: ...to the default value after the unit is powered off Figure 3 12 Buzzer Configuration Buzzer Max Under the Buzzer menu press to highlight the menu bar and select Max and press ENTER for confirmation to...

Страница 26: ...n a Dref point is needed to be set first For specific configuration please refer to Reference on page 3 6 which will be the scale for the power variation curve Set the reference to display an indicati...

Страница 27: ...guration menu as shown in Figure 3 14 or press ENTER to draw the power variation curve as shown in Figure 3 17 Figure 3 17 Auto Trace Curve The dynamic range for the instrument s auto trace curve is t...

Страница 28: ...wer testing input After the power is on enter the Power Meter menu and press to scroll the menu selection to highlight Zero Then press ENTER to confirm the selection and begin the auto calibration pro...

Страница 29: ...enu item Once the scale is changed the scale displayed on the screen will change immediately After the configuration is selected press QUIT to back out to the higher level menu The selections are not...

Страница 30: ...d return back to the default value after the unit is powered off CW MOD In the Laser Source menu as shown in Figure 3 22 press to scroll and highlight CW MOD Press ENTER to access the Laser CW MOD men...

Страница 31: ...lection is saved to memory after the unit is powered off Figure 3 24 Laser W dBm The default selection is dBm Auto Test The instrument can perform loss testing of the optical fiber and make an estimat...

Страница 32: ...nd 0 25dB km for 1550nm In the Auto Test menu press to scroll the menu bar and select Default Press ENTER for confirmation The loss will be set to Default Activate Auto Test In the Auto Test menu pres...

Страница 33: ...ess QUIT again to return to the Main Menu Auto test is only applicable to long distance single mode optical fiber Recall Recall is used to review stored wavelength measurements of 850nm 1300nm 1310nm...

Страница 34: ...elect Clear Press the ENTER button to access the Clear menu as shown in Figure 3 31 Figure 3 31 Clear Menu Under the Clear menu press to select the corresponding wavelength or auto test and press ENTE...

Страница 35: ...f The default setting for Auto Off is ON Language The instrument supports both a Chinese and English display When a selection is made the instrument will memorize this selection and automatically disp...

Страница 36: ...Operation OTM 20 Installation and Operation Handbook 3 20 Figure 3 33 Set Default Confirmation GUI...

Страница 37: ...serial port at least one 9 pin series port Install the OTM 20 Upload Application Software 1 Start Windows 98 2000 XP If Windows 98 2000 XP is running please quit all the other applications 2 Insert t...

Страница 38: ...selection to upload measurement records Open Open a saved data file to browse the previous measurement results Close Close the file Save Save the data Print Print the data Exit Exit the OTM 20 upload...

Страница 39: ...within 1 0dB when the curve is drawn Scale 2 0dB Selects the data scale within 2 0dB when the curve is drawn Scale 3 0dB Selects the data scale within 3 0dB when the curve is drawn Scale 4 0dB Select...

Страница 40: ...rnal setting Time Automatically set according to the PC s internal setting Cable Fill in the number of the cable under test From Fill in the starting point of the cable under test To Fill in the desti...

Страница 41: ...s will display as shown in Figure 4 8 Users can browse the records To close the opened file click CLOSE folder with arrow icon button Figure 4 8 Browse Saved Records Printing Stored Data After uploadi...

Страница 42: ...ed auto trace records file click the Draw Auto Trace Drawing menu selection The software will draw the auto trace curve in a new window as shown in Figure 4 10 Figure 4 10 Power Auto Trace Interface I...

Страница 43: ...nge of the Y axis Single click the REDRAW button to redraw the curve for the new scale selection Single click the PRINT button to print the displayed curve Single click the CLOSE button to close the d...

Страница 44: ...Data Collection Software OTM 20 Installation and Operation Handbook 4 8 Blank Page...

Страница 45: ...conditions The instrument will be auto power off when there is insufficient power during operation and low power will be shown on the LCD The Auto Off function is active and shuts down the device afte...

Страница 46: ...Troubleshooting OTM 20 Installation and Operation Handbook 5 2 Calibration Requirements Calibration is recommended every three years Please contact Videotek Customer Service...

Страница 47: ...del A 980 1310 1480 and 1550 for Model C Detector Type InGaAs Accuracy 0 25 dB 25 C 10dBm Resolution 0 001 dB Data Storage 4000 Measurements Laser Source Module Specifications Emitter Type LD Waveleng...

Страница 48: ...2 Mechanical Dimensions Height 8 8 22 cm Width 4 4 11 2 cm Depth 2 3 6 cm Weight 2 0 lbs 0 88 kg Environmental Operating temperature 0 to 50 C Storage temperature 20 to 70 C Humidity 10 to 90 non con...

Страница 49: ...u and Tool Bar 4 2 Operation 4 1 Printing 4 5 Save Records 4 4 System Requirements 4 1 Upload Records 4 3 DC 3 4 Draw Menu 4 3 E Environmental Specifications A 2 F File Menu 4 2 Front Panel 1 2 3 1 Co...

Страница 50: ...Save Records GUI 4 4 Scale 3 13 Service 1 3 Set Default 3 19 Shipment Returning to Videotek 1 4 Software Activate 4 1 Auto Trace Drawing 4 6 Browse Data 4 4 Exit 4 7 GUI 4 1 Installation 4 1 Operatio...

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