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Category : Oscilloscopes :   Probes & Accys : Tektronix ORR24 Optical Reference Receiver for CSA803 & 11800 Series Mainframe SONET/SDH 2.488 Gb/s Data Rate (ORR-24)

ORR-24

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Tektronix ORR-24


Tektronix ORR24 Optical Reference Receiver for CSA803 & 11800 Series Mainframe SONET/SDH 2.488 Gb/s Data Rate   (ORR-24)

Product Details

Model  Tektronix  ORR-24   
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Condition Reconditioned
Unit Price $495.00  
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Product Overview

Features & Benefits

  • Supports SONET/SDH 2.488 Gb/s Data Rate
  • Reference Receiver Performance Compliant with ITU-T G.957
  • Built-in 4th Order Bessel-Thompson Frequency Response
  • 2.0 GHz Bandwidth for Analyzing Communication Eye-patterns or General Purpose Optical Signals
  • Amplified Design for Accurate and Repeatable Measurements
  • Plug-in Form Factor That Is Compatible with 11800/CSA803 Series Sampling Scopes
  • Optional External Power Supply (016-1609-00) for Stand Alone Operation

Applications

  • Standards Compliance: SONET/SDH 2.488 Gb/s
  • Accurate Extinction Ratio Measurements
  • Eye-pattern and Pulse Shape Measurements

Verification of SONET/SDH Signals

The Synchronous Digital Hierarchy (SDH) and the Synchronous Optical NETwork (SONET) standards are the cornerstones of today's high-speed digital telecommunications systems. The Tektronix ORR24 optical reference receiver provides an important interface for compliance testing of SDH/SONET optical transmission products or components.

The amplified design of the ORR24 converts the incoming optical light into a high gain, low noise electrical signal. This allows easy testing of optical designs as well as repeatable measurements. The ORR24 is DC coupled which is required for accurate extinction ratio measurements.

The controlled frequency design of the ORR24 optical reference receiver ensures that the measurements correctly represent the true transmitted signal for the purpose of pulse shape analysis or eye-pattern measurements. A certificate of calibration and a frequency response graph are supplied with the ORR24 for performance documentation. The compact SDxx form factor enables the ORR24 to conveniently plug into the Tektronix 11800 or CSA803 Series sampling oscilloscopes for complete compliance testing. An optional power supply is available for other instrument applications.

Nominal Frequency Performance Values for an Optical Reference Receiver

SDH/SONET recommendations define the nominal transfer function for an optical reference receiver as being a fourth-order Bessel-Thompson response. The following table lists the corresponding attenuation at various frequencies, f. In this table fo is the transmitted data rate and fr is the 3 dB cutoff, which is defined as fr = 0.75fo.

f/fo

f/fr

Attenuation (dB)

f/fo

f/fr

Attenuation (dB)

0.15

 0.2

   0.1

1

 1.33

   5.7

0.3

 0.4

   0.4

1.05

 1.4

   6.4

0.45

 0.6

   1

1.2

 1.6

   8.5

0.6

 0.8

   1.9

1.35

 1.8

   10.9

0.75

 1

   3

1.5

 2

   13.4

0.9

 1.2

   4.5

2

 2.67

   21.5

Note: Allowable deviation from the nominal attenuation in the table is very tightly specified in the SDH/SONET recommendations. The actual allowable deviation values depend on f/fr and the bit rate. These values run as low as 0.5 dB.







Specifications







Datasheet SD22.pdf