Tektronix SD-48 Instruction Manual
Tektronix SD-48 Instruction Manual

Tektronix SD-48 Instruction Manual

Optical-to-electrical converter

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A l l t e s t I n s t r u me n t s , I n c .
5 0 0 C e n t r a l A v e .
F a r mi n g d a l e , N J 0 7 7 2 7
P : ( 7 3 2 ) 9 1 9 - 3 3 3 9
F : ( 7 3 2 ) 9 1 9 - 3 3 3 2
a l l t e s t . n e t
s s a l e s @ a l l t e s t . n e t
T h e t e s t & me a s u r e me n t
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a v a i l a b l e w i t h c e r t i f i e d c a l i b r a t i o n f r o m o u r i n - h o u s e s t a f f
o f t e c h n i c i a n s a n d e n g i n e e r s .
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t
G e t a q u o t e t o d a y !
C C a l l ( 7 3 2 ) 9 1 9 - 3 3 3 9 o r e ma i l s a l e s @a l l t e s t . n e t .

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Summary of Contents for Tektronix SD-48

  • Page 1 T h e t e s t & me a s u r e me n t e q u i p me n t y o u n e e d a t t h e p r i c e y o u w a n t . A l l t e s t I n s t r u me n t s , I n c .
  • Page 2 Instruction Manual SD-48 Optical-to-Electrical Converter 071-0207-00...
  • Page 3 Copyright Tektronix, Inc. All rights reserved. Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes that in all previously published material. Specifications and price change privileges reserved. Printed in the U.S.A. Tektronix, Inc., P.O. Box 1000, Wilsonville, OR 97070–1000...
  • Page 4 Tektronix, with shipping charges prepaid. Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the Tektronix service center is located. Customer shall be responsible for paying all shipping charges, duties, taxes, and any other charges for products returned to any other locations.
  • Page 6: Table Of Contents

    ......... . SD-48 Instruction Manual...
  • Page 7 Figure 5: Installation with optional power supply kit ... . . Figure 6: SD-48 relative responsivity (normalized to 1310 nm) ..Figure 7: Typical frequency response, Option RR (SD-48, OC-192 filter, and SD-22) .
  • Page 8: General Safety Summary

    Terms on the Product. These terms may appear on the product: DANGER indicates an injury hazard immediately accessible as you read the marking. WARNING indicates an injury hazard not immediately accessible as you read the marking. CAUTION indicates a hazard to property including the product. SD-48 Instruction Manual...
  • Page 9 General Safety Summary Symbols on the Product. The following symbols appear on the product: CAUTION CAUTION Static Sensitive Refer to Manual SD-48 Instruction Manual...
  • Page 10: Contacting Tektronix

    For product support outside of North America, contact your local Tektronix distributor or sales office. Service Contact your local Tektronix distributor or sales office. Or visit Support our web site for a listing of worldwide service locations. http://www.tek.com For other...
  • Page 11 Contacting Tektronix SD-48 Instruction Manual...
  • Page 12: Getting Started

    The SD-48 is an optical-to-electrical (O/E) converter that converts an optical input signal into an output voltage for display on either a high-speed oscillo- scope or spectrum analyzer. The SD-48 O/E converter installs in any of the front panel compartments of a Tektronix 11800 Series Digital Sampling Oscilloscope, the SM-11 Multichannel Unit, or the Tektronix CSA 803 Communications Signal Analyzer.
  • Page 13: Standard Accessories

    Getting Started Standard Accessories The following accessories are standard with every SD-48 O/E converter: Hard case Instruction manual FC/PC to FC/PC 9 m single-mode fiber jumper FC/ST, FC/SC, and FC/FC hybrid connectors Rigid U-cable for sampling heads other than SD-32 (SMA-SMA, 50...
  • Page 14: Installation

    For a list of part numbers, see pages 24 and 25. Installation Follow the instructions in this section to install the SD-48 O/E converter into the Tektronix 11800 Series Digital Sampling Oscilloscope or CSA 803 Communica- tions Signal Analyzer, or to connect it to the optional power supply for stand- alone operation.
  • Page 15 Tighten each nut lightly with a wrench. For best repeatability and to prolong the life of SMA connectors, use a torque wrench and tighten the connection to the range of 7 to 10 lb-in (79 to 112 N-cm). SD-48 Instruction Manual...
  • Page 16: Figure 2: Using The Rigid Connector (All Sampling Heads Except Sd-32)

    Figure 2: Using the rigid connector (all sampling heads except SD-32) SD-32 sampling head V-K adapter (011-0157-00) Shorter leg Rigid J-cable (174-3976-00) O/E converter Figure 3: Using the rigid connector and V–K adapter (SD-32 sampling head only) SD-48 Instruction Manual...
  • Page 17: Figure 4: Front Panel Compartments In A Csa 803

    See Figure 4. SD-48 or sampling head SD-48 only (power-only compartments) Figure 4: Front panel compartments in a CSA 803 Communications Signal Analyzer SD-48 Instruction Manual...
  • Page 18: Figure 5: Installation With Optional Power Supply Kit

    Getting Started Optional Power Supply The optional power supply kit (Figure 5) allows the user to power the SD-48 O/E converter by itself. This allows the O/E converter to operate with other types of measurement instruments independent of a CSA or 11800 series mainframe.
  • Page 19: Operating Basics

    Operating Basics To prolong the life of the SD-48 O/E converter observe the following handling, cleaning, and operating instructions. Handling Handle the SD-48 O/E converter carefully at all times. CAUTION. To avoid damaging the SD-48 O/E converter, take the following...
  • Page 20: Connecting Optical Signals

    2. Tighten the nut lightly with finger pressure only. The input of the SD-48 O/E converter can couple to optical fibers with a core diameter of up to 9 m. Alternate types can be coupled by use of an FC-FC jumper and the FC-FC, FC-ST, FC-SC adapters.
  • Page 21: Attenuating Optical Signals

    Attenuating Optical Signals To keep the optical input power to an appropriate level, it may be necessary to use an optical attenuator (such as the Tektronix OA5002) to attenuate the optical signal. CAUTION. To avoid damaging the optical input of the SD-48 O/E converter, attenuate optical signals to less than 10 mW average power or 20 mW peak power at the wavelength with highest relative responsivity.
  • Page 22: Specifications

    Specifications This section contains the specifications for the SD-48 Optical-to-Electrical Converter. All specifications are guaranteed unless noted as “typical.” Typical specifications are provided for your convenience but are not guaranteed. Specifications marked with the symbol have corresponding checks in the Performance Verification section on page 14.
  • Page 23: Figure 6: Sd-48 Relative Responsivity (Normalized To 1310 Nm)

    Figure 6: SD-48 relative responsivity (normalized to 1310 nm) –2.0 –4.0 –6.0 –8.0 Typical response –10.0 COM15-264E –12.0 recommended response window –14.0 –16.0 –17.8 Frequency (GHz) Figure 7: Typical frequency response, Option RR (SD-48, OC-192 filter, and SD-22) SD-48 Instruction Manual...
  • Page 24 IEC 801-2 Electrostatic Discharge Immunity IEC 801-3 RF Electromagnetic Field Immunity Australia/New Zealand Complies with EMC provision of Radiocommunications Act per the following standard(s): Declaration of Conformity – EMC AN/NZS 2064.1/2 Industrial, Scientific, and Medical Equipment: 1992 SD-48 Instruction Manual...
  • Page 25: Performance Verification

    Performance Verification Use the following procedures to verify the warranted specifications of the SD-48 Optical-to-Electrical Converter. Before beginning these procedures, see page 21 and photocopy the test record and use it to record the performance test results. The recommended calibration interval is one year.
  • Page 26: Output Zero

    The O/E converter under test and the test equipment and should be warmed up for 20 minutes at an ambient temperature between 20 and 30 C. Output Zero 1. Attach the output of the SD-48 to the voltmeter inputs with a 50 termina- tion and BNC-to-banana adapter.
  • Page 27 The fiber bend radius of the SD-48 fiber input should lay with >1.5 inch bend radius along the fiber’s entire length. Although this precaution must be maintained...
  • Page 28: Noise Equivalent Power

    Power the SD-48 under test using an 11801 DSO. 1. Zero the RF power meter. 2. Connect the SD-48 electrical output to the RF power meter. 3. With the dust cover on the input to the SD-48, the power meter should read less than [(15 pW...
  • Page 29: Bandwidth/Frequency Response

    This procedure allows you to characterize and plot the performance of your particular setup which includes the channel of your sampling oscilloscope, sampling head, SD-48 O/E Converter, electrical cable, and filter (if any).
  • Page 30: Figure 8: Setup For Frequency Response Measurement, Sd-48 Standard Configuration

    Performance Verification b. For an SD-48 with Option RR (OC-192), connect the equipment as shown in Figure 9. Note that this setup requires an SD-22 sampling head. Splitter fiber input Split 90% out fiber 10dB attenuator Optical Split Optical Impulse Generator V–K adapter...
  • Page 31 Performance Verification 5. Adjust the attenuation of the 90% path until the SD-48 produces more than 30 mV , but less than 80 mV impulse response. 6. Locate and center the first impulse (after time zero) on the oscilloscope display. (For a 10 MHz repetition rate, the impulse should occur at about 100 ns.
  • Page 32 (attach plot DC to 30 GHz Bandwidth/frequency response, Option RR (OC-192), (attach plot DC to 15 GHz Frequency response plots are for characterization purposes only. Specifications for bandwidth and frequency response are typical and are not guaranteed. SD-48 Instruction Manual...
  • Page 33: Replaceable Parts

    Replaceable Parts For information about replaceable parts, contact your Tektronix sales representa- tive. Figure 10: SD-48 replaceable parts SD-48 Instruction Manual...
  • Page 34: Figure 11: Standard Accessories

    Replaceable Parts Option RR only Figure 11: Standard accessories Figure 12: Optional accessories SD-48 Instruction Manual...
  • Page 35: Figure 13: Optional Power Cords

    80009 016–1609–00 CORD –2 119–5118–00 ATTEN,OPTICAL:30MM,L10DBFOR 1310/1550NM,FC 0LK97 FA100–35–10–HP CONN.FA100–35–10–HP –3 015–0565–00 POWER DIVIDER:50 OHM,3 SMA,FEMALE CONN 64537 D293S 015–1014–00 PWR DIVIDER,RES:50 OHM,SMA 64537 D241S –4 020–2209–00 ACCESSORY KIT:CONNECTOR,OPTICAL,DIN RCPT 80009 020–2209–00 TO FC SQUARE MOUNT ADAPTER, SD-48 Instruction Manual...
  • Page 36 METER,STR,IEC320,RCPT X 13A,FUSED UK DESCRIPTION PLUG(13A FUSE),UNI –3 161–0066–11 CA ASSY,PWR:3,1.0MM SQ,250V/10A,2.5 80126 ORDER BY METER,STR,IEC320,RCPT,AUSTRALIA DESCRIPTION –4 161–0066–12 CA ASSY,PWR:3,18 AWG,250V/10A,98 S3109 ORDER BY INCH,STR,IEC320,RCPT X NEMA 6–15P,US DESCRIPTION –5 161–0154–00 CA ASSY,PWR:3,1.0MM SQ,250V/10A,2.5 5F520 86515030 METER,STR,IEC320,RCPT,SWISS SD-48 Instruction Manual...
  • Page 37 CAMCAR DIV OF TEXTRON INC ATTN: ALICIA SANFORD ROCKFORD, IL 611045181 516 18TH AVE S3109 FELLER U.S. CORPORATION 72 VERONICA AVE SOMERSET, NJ 08873 UNIT #4 TK2541 AMERICOR ELECTRONICS LTD UNIT–H ELK GROVE VILLAGE, IL 60007 2682 W COYLE AVE SD-48 Instruction Manual...

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