CALIBRATION PROCEDURE FOR OPTICAL FIBER TEST SET, TS-4320(P)/G - TB-9-6625-2309-350001
CALIBRATION PROCEDURE FOR OPTICAL FIBER TEST SET, TS-4320(P)/G - TB-9-6625-2309-350002
SECTION I IDENTIFICATION AND DESCRIPTION - TB-9-6625-2309-350003
Table 2. Minimum Specifications of Equipment Required - TB-9-6625-2309-350004
SECTION III CALIBRATION PROCESS - TB-9-6625-2309-350005
Perform steps (1) through (5) below:
Figure 1. Example of correct leading edge position of dead zone pulse (TD-260C).
Figure 3. Horizontal scale error - equipment setup.
Perform (1) through (4) below:
Set digital delay/pulse generator controls to settings as indicated in (1) through (12) below
Horizontal Scale Error - TB-9-6625-2309-350011
Figure 4. Example of cursor A at leading edge of FOCUS generated pulse (TD-260C).
Figure 5. Example of cursor A on FOCUS generated pulse leading edge starting point (TD-260C).
Figure 6. Example of cursor placement if undershoot is present (TD-285C).
Horizontal Scale Error - TB-9-6625-2309-350015
Figure 7. Examples of graphic report (screen). `Least squares line' between dashed boundary lines is Figure 7. Examples of graphic report (screen). `Least squares line' between dashed boundary lines is
Attenuation Scale Non-linearity - TB-9-6625-2309-350017
Attenuation Scale Non-linearity - CONT - TB-9-6625-2309-350018
Attenuation Scale Non-linearity - CONT - TB-9-6625-2309-350019
Figure 8. Example of FOCUS generated pulse equal to dead zone pulse amplitude (TD-260C).
Figure 10. Example of cursor A on approximate middle of dead zone pulse with no peak evident (TD-260C shown for example).
Figure 12. Example of cursor B placement in center flat portion on FOCUS generated pulse (TD-260C).
Attenuation Scale Non-linearity - TB-9-6625-2309-350023
Figure 13. Top of FOCUS generated pulse within 8 dB of TI noise floor peak for
Attenuation Scale Non-linearity - TB-9-6625-2309-350025
Figure 14. Reference attenuation graphic.
Attenuation Scale Non-linearity - TB-9-6625-2309-350027
SECTION IV CIRCUIT ALIGNMENT
Figure 15. TS-4320(P)/G board locations and optical module simulator.
Figure 16. U71 location on DAS 1A2A4 circuit board.
Figure 17. A/D 1A2A8 - adjustment locations.
A/D Adjustments
Installation and Use of Software Level 1.08a
Installation and Use of Software Level 1.08a (CONT) - TB-9-6625-2309-350034
Installation and Use of Software Level 1.08a (CONT) - TB-9-6625-2309-350035
Installation and Use of Software Level 1.08a (CONT) - TB-9-6625-2309-350036
Time Insertion Delay Characterization - TB-9-6625-2309-350037
Figure 19. Course placement of cursor A after completing fast scan (TD-260C).
Figure 20. Placement of cursor A to get reference position (TD-260C).
Figure 21. Equipment setup for time insertion delay after fiber test box is removed.
Time Insertion Delay Characterization - TB-9-6625-2309-350041
Figure 22. Example of locating FOCUS generated pulse (TD-260C).
Figure 23. Example of FOCUS generated pulse placement just to right of cursor A before starting 3 nanosecond increments (TD-260C).
Figure 25. Example of FOCUS generated pulse placed in best possible position with respect to cursor A (TD-260C).
Final Procedure - TB-9-6625-2309-350045
APPENDIX A TD-260C (850 nm) HORIZONTAL SCALE DATA SHEET
APPENDIX A TD-261C (1300 nm) HORIZONTAL SCALE DATA SHEET
APPENDIX A TD-285C (1310 nm) HORIZONTAL SCALE DATA SHEET
APPENDIX A TD-285C (1550 nm) HORIZONTAL SCALE DATA SHEET
APPENDIX TD-285C (1550 NM) REFERENCE ATTENUATION DATA SHEET
APPENDIX TD-285C (1310 NM) REFERENCE ATTENUATION DATA SHEET
APPENDIX TD-261C (1300 nm) REFERENCE ATTENUATION DATA SHEET
APPENDIX TD-260 C (850 nm) REFERENCE ATTENUATION DATA SHEET
TB-9-6625-2309-35 Optical Fiber Test Set TS-4320(P)/G Manual
CALIBRATION PROCEDURE FOR OPTICAL FIBER TEST SET, TS-4320(P)/G - TB-9-6625-2309-350002
SECTION I IDENTIFICATION AND DESCRIPTION - TB-9-6625-2309-350003
Table 2. Minimum Specifications of Equipment Required - TB-9-6625-2309-350004
SECTION III CALIBRATION PROCESS - TB-9-6625-2309-350005
Perform steps (1) through (5) below:
Figure 1. Example of correct leading edge position of dead zone pulse (TD-260C).
Figure 3. Horizontal scale error - equipment setup.
Perform (1) through (4) below:
Set digital delay/pulse generator controls to settings as indicated in (1) through (12) below
Horizontal Scale Error - TB-9-6625-2309-350011
Figure 4. Example of cursor A at leading edge of FOCUS generated pulse (TD-260C).
Figure 5. Example of cursor A on FOCUS generated pulse leading edge starting point (TD-260C).
Figure 6. Example of cursor placement if undershoot is present (TD-285C).
Horizontal Scale Error - TB-9-6625-2309-350015
Figure 7. Examples of graphic report (screen). `Least squares line' between dashed boundary lines is Figure 7. Examples of graphic report (screen). `Least squares line' between dashed boundary lines is
Attenuation Scale Non-linearity - TB-9-6625-2309-350017
Attenuation Scale Non-linearity - CONT - TB-9-6625-2309-350018
Attenuation Scale Non-linearity - CONT - TB-9-6625-2309-350019
Figure 8. Example of FOCUS generated pulse equal to dead zone pulse amplitude (TD-260C).
Figure 10. Example of cursor A on approximate middle of dead zone pulse with no peak evident (TD-260C shown for example).
Figure 12. Example of cursor B placement in center flat portion on FOCUS generated pulse (TD-260C).
Attenuation Scale Non-linearity - TB-9-6625-2309-350023
Figure 13. Top of FOCUS generated pulse within 8 dB of TI noise floor peak for
Attenuation Scale Non-linearity - TB-9-6625-2309-350025
Figure 14. Reference attenuation graphic.
Attenuation Scale Non-linearity - TB-9-6625-2309-350027
SECTION IV CIRCUIT ALIGNMENT
Figure 15. TS-4320(P)/G board locations and optical module simulator.
Figure 16. U71 location on DAS 1A2A4 circuit board.
Figure 17. A/D 1A2A8 - adjustment locations.
A/D Adjustments
Installation and Use of Software Level 1.08a
Installation and Use of Software Level 1.08a (CONT) - TB-9-6625-2309-350034
Installation and Use of Software Level 1.08a (CONT) - TB-9-6625-2309-350035
Installation and Use of Software Level 1.08a (CONT) - TB-9-6625-2309-350036
Time Insertion Delay Characterization - TB-9-6625-2309-350037
Figure 19. Course placement of cursor A after completing fast scan (TD-260C).
Figure 20. Placement of cursor A to get reference position (TD-260C).
Figure 21. Equipment setup for time insertion delay after fiber test box is removed.
Time Insertion Delay Characterization - TB-9-6625-2309-350041
Figure 22. Example of locating FOCUS generated pulse (TD-260C).
Figure 23. Example of FOCUS generated pulse placement just to right of cursor A before starting 3 nanosecond increments (TD-260C).
Figure 25. Example of FOCUS generated pulse placed in best possible position with respect to cursor A (TD-260C).
Final Procedure - TB-9-6625-2309-350045
APPENDIX A TD-260C (850 nm) HORIZONTAL SCALE DATA SHEET
APPENDIX A TD-261C (1300 nm) HORIZONTAL SCALE DATA SHEET
APPENDIX A TD-285C (1310 nm) HORIZONTAL SCALE DATA SHEET
APPENDIX A TD-285C (1550 nm) HORIZONTAL SCALE DATA SHEET
APPENDIX TD-285C (1550 NM) REFERENCE ATTENUATION DATA SHEET
APPENDIX TD-285C (1310 NM) REFERENCE ATTENUATION DATA SHEET
APPENDIX TD-261C (1300 nm) REFERENCE ATTENUATION DATA SHEET
APPENDIX TD-260 C (850 nm) REFERENCE ATTENUATION DATA SHEET
TB-9-6625-2309-35 Optical Fiber Test Set TS-4320(P)/G Manual
