User Manual
CTS 850
Test Set
SDH/PDH, Jitter & Wander
070-9988-01
This document supports firmware version 2.8 and
above.
Advanced Test Equipment Rentals
www.atecorp.com 800-404-ATEC (2832)
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Copyright E Tektronix, Inc. 1998. All rights reserved. Licensed software
products are owned by Tektronix or its suppliers and are protected by United
States copyright laws and international treaty provisions.
Use, duplication, or disclosure by the Government is subject to restrictions as
set forth in subparagraph (c)(1)(ii) of the Rights in Technical Data and
Computer Software clause at DFARS 252.227–7013, or subparagraphs (c)(1)
and (2) of the Commercial Computer Software – Restricted Rights clause at
FAR 52.227–19, as applicable.
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
TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.
WARRANTY
Tektronix warrants that this product will be free from defects in materials and
workmanship for a period of three (3) years from the date of shipment. If any such product
proves defective during this warranty period, Tektronix, at its option, either will repair the
defective product without charge for parts and labor, or will provide a replacement in
exchange for the defective product.
In order to obtain service under this warranty, Customer must notify Tektronix of the
defect before the expiration of the warranty period and make suitable arrangements for the
performance of service. Customer shall be responsible for packaging and shipping the
defective product to the service center designated by Tektronix, with shipping charges
prepaid. T ektronix 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.
This warranty shall not apply to any defect, failure or damage caused by improper use or
improper or inadequate maintenance and care. Tektronix shall not be obligated to furnish
service under this warranty a) to repair damage resulting from attempts by personnel other
than Tektronix representatives to install, repair or service the product; b) to repair damage
resulting from improper use or connection to incompatible equipment; or c) to service a
product that has been modified or integrated with other products when the effect of such
modification or integration increases the time or difficulty of servicing the product.
THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THIS
PRODUCT IN LIEU OF ANY OTHER WARRANTIES, EXPRESSED OR
IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED
WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE. TEKTRONIX’ RESPONSIBILITY TO REPAIR OR REPLACE
DEFECTIVE PRODUCTS IS THE SOLE AND EXCLUSIVE REMEDY
PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY.
TEKTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR ANY
INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS
ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.
Table of Contents
CTS 850 SDH/PDH Test Set
General Safety Summary xxv. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preface xxix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Getting Started
Product Description 1–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accessories 1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Standard Accessories 1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optional Accessories 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Navigation through Manual 1–4. . . . . . . . . . . . . . . . . . . . . . . . . . . .
First Time Operation 1–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing the Accessory Pouch 1–7. . . . . . . . . . . . . . . . . . . . . .
Setting Up the CTS 850 1–11. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Turning On the CTS 850 1–13. . . . . . . . . . . . . . . . . . . . . . . . . . .
Turning Off the CTS 850 1–14. . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Basics
Functional Overview 2–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front-Panel Controls, Indicators, and Connectors 2–2. . . . . . . . . . .
Rear-Panel Controls and Connectors 2–4. . . . . . . . . . . . . . . . . . . . .
Front-Panel Status Lights 2–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reading the Display 2–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
The Basic Menu Structure 2–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
What is a Menu? 2–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting Menus 2–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting Pages 2–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Displaying Help 2–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting Signals 2–15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting Optical Signals 2–15. . . . . . . . . . . . . . . . . . . . . . . . .
Connecting SDH Electrical Signals 2–16. . . . . . . . . . . . . . . . . . .
Connecting PDH Electrical Signals 2–16. . . . . . . . . . . . . . . . . . .
Initiating Autoscan 2–16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Changing Parameters 2–17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CTS 850 SDH/PDH T est Set User Manual
v
Table of Contents
Selecting Parameters 2–17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting from Lists 2–18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Changing Decimal Numbers 2–19. . . . . . . . . . . . . . . . . . . . . . . .
Changing Binary Numbers 2–21. . . . . . . . . . . . . . . . . . . . . . . . .
Entering Text 2–22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Working with the Disk Drive 2–25. . . . . . . . . . . . . . . . . . . . . . . . . . .
Reading Files on Disk 2–26. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Synchronous, Plesiochronous, Asynchronous 2–27. . . . . . . . . . . . . .
Plesiochronous Digital Hierarchy (PDH) 2–28. . . . . . . . . . . . . . . . .
Anomaly, Defect, Failure, Alarm 2–29. . . . . . . . . . . . . . . . . . . . . . .
SDH Multiplexing Principles 2–29. . . . . . . . . . . . . . . . . . . . . . . . . .
Difference in Telecommunications Terms 2–32. . . . . . . . . . . . . . . . .
45 Mbit/s Map/Demap Implementation 2–33. . . . . . . . . . . . . . . . . . .
Tutorial 2–35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Before Turning On the CTS 850 2–36. . . . . . . . . . . . . . . . . . . . . . . .
Setting Transmit Parameters 2–37. . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting Receive Parameters 2–38. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the Test Time 2–39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Where T est Results Are Displayed 2–39. . . . . . . . . . . . . . . . . . . . . .
Begin the Test 2–41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inserting Errors 2–42. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjusting Pointers 2–44. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Viewing Section Overhead 2–49. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Editing the Section Overhead 2–50. . . . . . . . . . . . . . . . . . . . . . . . . .
Viewing Test Results 2–52. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reference
Basic Test Procedures 3–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting Up the CTS 850 3–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Network Continuity Checking 3–2. . . . . . . . . . . . . . . . . . . . . . . . . .
Transmission Signal Quality Testing 3–3. . . . . . . . . . . . . . . . . . . . .
Measuring Bit Error Rate 3–3. . . . . . . . . . . . . . . . . . . . . . . . . . .
Testing Mapping and Demapping 3–6. . . . . . . . . . . . . . . . . . . .
Fault Tolerance Checking 3–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Response to Errors and Alarms 3–9. . . . . . . . . . . . . . . . . . . . . .
Response to Pointer Movements 3–14. . . . . . . . . . . . . . . . . . . . .
Response to Line Frequency Offset 3–17. . . . . . . . . . . . . . . . . . .
Performance Monitoring 3–19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
vi
CTS 850 SDH/PDH Test Set User Manual
Table of Contents
Jitter/Wander Testing 3–23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Testing Jitter Tolerance 3–23. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Testing Clock-to-Line Jitter Transfer 3–28. . . . . . . . . . . . . . . . . .
Video Timing Quality Testing 3–31. . . . . . . . . . . . . . . . . . . . . . . . . .
Material below this line appears only in reference manual–on–CD
Setting Test Control Parameters 3–33. . . . . . . . . . . . . . . . . . . . . .
Setting the Test Time Duration 3–33. . . . . . . . . . . . . . . . . . . . . . . . .
Setting a Unique Test Time Duration 3–34. . . . . . . . . . . . . . . . .
Setting the History Resolution 3–36. . . . . . . . . . . . . . . . . . . . . . . . . .
Starting and Stopping a Test 3–37. . . . . . . . . . . . . . . . . . . . . . . . . . .
Making Changes While Running a Test 3–38. . . . . . . . . . . . . . .
Actions You Cannot Perform While Running a T est 3–38. . . . . .
Working with Test Setups 3–41. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Saving and Recalling Instrument Setups 3–41. . . . . . . . . . . . . . . . . .
Saving Instrument Setups 3–42. . . . . . . . . . . . . . . . . . . . . . . . . .
Recalling Instrument Setups 3–44. . . . . . . . . . . . . . . . . . . . . . . .
Recalling the Default Factory Setup 3–45. . . . . . . . . . . . . . . . . .
Deleting Instrument Setups from Disk 3–46. . . . . . . . . . . . . . . .
Pass/Fail Tests 3–47. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parameters of a Pass/Fail Test 3–47. . . . . . . . . . . . . . . . . . . . . . .
Fail If Conditions 3–48. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Creating a Pass/Fail Test 3–52. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Running a Pass/Fail Test 3–57. . . . . . . . . . . . . . . . . . . . . . . . . . .
Changing an Existing Pass/Fail Test 3–59. . . . . . . . . . . . . . . . . .
Deleting a Pass/Fail Test from Disk 3–60. . . . . . . . . . . . . . . . . . .
CTS 850 SDH/PDH Test Set User Manual
Checking Signal Status 3–63. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Viewing Signal Structure 3–63. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Viewing the Payload 3–64. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Determining the Payload Pattern and Framing 3–65. . . . . . . . . .
Printing the AutoScan Dialog Box 3–66. . . . . . . . . . . . . . . . . . .
Viewing the Signal State 3–66. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Extended Status 3–69. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the Beeper 3–69. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting SDH Transmit Parameters 3–71. . . . . . . . . . . . . . . . . . . . .
Steps for Setting Parameters 3–72. . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the Transmit Rate 3–72. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
vii
Table of Contents
Independent Transmit and Receive Settings 3–73. . . . . . . . . . . .
Coupling Transmit and Receive Settings 3–73. . . . . . . . . . . . . . .
Through Mode 3–75. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the Transmit Clock 3–77. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the Line Clock Offset 3–78. . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the Transmit Level 3–78. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifying the AU to Test 3–79. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the SDH Structure 3–80. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TU Under Test 3–82. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting TU Background Fill 3–82. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting SDH Output 3–83. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting Payload Structure 3–84. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting Test Pattern 3–85. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the Tx/Rx Setup 3–87. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mapping a PDH Signal 3–87. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the Test Pattern (User–selectable) 3–90. . . . . . . . . . . . . . . . .
Setting Overhead Bytes 3–91. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How to Edit an Overhead Byte 3–91. . . . . . . . . . . . . . . . . . . . . .
Editing the VC4, VC3, and VC12 Overhead Bytes 3–94. . . . . . .
Bytes You Cannot Edit 3–95. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Editing the J1 Path Trace Byte 3–97. . . . . . . . . . . . . . . . . . . . . . .
Adding DCC and User Channel Overhead Bytes 3–99. . . . . . . .
Trace Settings 3–102. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Signal Labels 3–104. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overhead PRBS Test 3–105. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting PDH Transmit Parameters 3–107. . . . . . . . . . . . . . . . . . . .
Steps for Setting Parameters 3–107. . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting 64k Tx Settings 3–108. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the Transmit Rate 3–109. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Independent Transmit and Receive Settings 3–109. . . . . . . . . . . .
Coupling Transmit and Receive Settings 3–1 10. . . . . . . . . . . . . . .
Viewing the Transmit Line Code 3–112. . . . . . . . . . . . . . . . . . . . . . . .
Setting the Transmit Clock 3–112. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the Line Clock Offset 3–113. . . . . . . . . . . . . . . . . . . . . . . . . .
Specifying Payload and Payload Framing 3–114. . . . . . . . . . . . . . . . .
Specifying the Test Pattern 3–116. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting Jitter or Wander Generation 3–118. . . . . . . . . . . . . . . . . . . . . .
Setting SDH Receive Parameters 3–1 19. . . . . . . . . . . . . . . . . . . . . .
Steps for Setting Parameters 3–119. . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the Receive Rate 3–120. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
viii
CTS 850 SDH/PDH Test Set User Manual
Table of Contents
Independent Receive and Transmit Settings 3–121. . . . . . . . . . . .
Coupling Receive and Transmit Settings 3–121. . . . . . . . . . . . . . .
Specifying the AU to Test 3–123. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the SDH Structure 3–124. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TU Under Test 3–125. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the Payload 3–126. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the Test Pattern 3–127. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting Active Channel Selection 3–128. . . . . . . . . . . . . . . . . . . . . .
Selecting the Payload Drop 3–128. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting Tx/Rx Setup 3–129. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting Signal Status 3–130. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking Received Optical Power or Received Peak Voltage 3–132.
Selecting Analysis Configuration 3–133. . . . . . . . . . . . . . . . . . . . . . .
Demapping a PDH Signal 3–135. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dropping a PDH Signal 3–138. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
V iewing Overhead Bytes 3–139. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Viewing Section Overhead Bytes 3–139. . . . . . . . . . . . . . . . . . . .
Viewing Path Overhead Bytes 3–140. . . . . . . . . . . . . . . . . . . . . . .
Displaying the J1 Path Trace Message 3–140. . . . . . . . . . . . . . . . .
Displaying the J2 Path Trace Message 3–141. . . . . . . . . . . . . . . . .
Displaying the V5 Byte 3–141. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dropping DCC and User Channel Overhead Bytes 3–142. . . . . . .
Controlling the Display Update 3–145. . . . . . . . . . . . . . . . . . . . . .
Setting PDH Receive Parameters 3–147. . . . . . . . . . . . . . . . . . . . . .
Steps for Setting Parameters 3–147. . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting 64k Rx Settings 3–148. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the Receive Rate 3–149. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Independent Receive and Transmit Settings 3–150. . . . . . . . . . . .
Coupling Receive and Transmit Settings 3–150. . . . . . . . . . . . . . .
Setting the Receive Level 3–152. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting Payload and Payload Framing 3–152. . . . . . . . . . . . . . . . . . . .
Specifying the Test Pattern 3–153. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifying the Payload Drop 3–155. . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting Rx CAS and Voice 3–156. . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting Jitter Receive Parameters 3–157. . . . . . . . . . . . . . . . . . . . . . .
Setting Jitter/W ander Parameters 3–159. . . . . . . . . . . . . . . . . . . . .
Jitter/Wander – Working with Test Setups 3–159. . . . . . . . . . . . . . . . .
CTS 850 SDH/PDH Test Set User Manual
ix
Table of Contents
Setting Up a Jitter Test 3–160. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Saving and Recalling Results 3–169. . . . . . . . . . . . . . . . . . . . . . . .
Printing Results 3–169. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exporting Results into a Document 3–169. . . . . . . . . . . . . . . . . . .
Setting Jitter or Wander Generation 3–170. . . . . . . . . . . . . . . . . . . . . .
Turning on Jitter or Wander Generation 3–171. . . . . . . . . . . . . . .
Selecting the Jitter Output 3–172. . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the Jitter Frequency and Amplitude 3–173. . . . . . . . . . . . .
Measure Wander on 2 MHz clock input from NE 3–174. . . . . . . .
Setting Jitter Receive Parameters 3–175. . . . . . . . . . . . . . . . . . . . . . .
Selecting the Jitter Mode 3–176. . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting the Input Source 3–176. . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting the Jitter Range 3–177. . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting the Jitter Input Filter 3–177. . . . . . . . . . . . . . . . . . . . . . .
Setting the Jitter Hit Threshold 3–179. . . . . . . . . . . . . . . . . . . . . .
Setting the Pointer Hit Threshold 3–180. . . . . . . . . . . . . . . . . . . .
Examples of Jitter Measurements 3–181. . . . . . . . . . . . . . . . . . . .
Examples of Wander Measurements 3–182. . . . . . . . . . . . . . . . . .
Calibrating Jitter Systems 3–183. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Executing Jitter Calibration 3–184. . . . . . . . . . . . . . . . . . . . . . . . .
Setting Alarms and Inserting Errors 3–185. . . . . . . . . . . . . . . . . . .
Simulating Error Conditions 3–186. . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifying the Error to Insert 3–187. . . . . . . . . . . . . . . . . . . . . . . .
Inserting Errors 3–187. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting Alarms 3–190. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Simulating Transmit Failures 3–191. . . . . . . . . . . . . . . . . . . . . . . . . . .
PDH Defect and Anomaly Insertion 3–192. . . . . . . . . . . . . . . . . . . . .
Setting Pointers and Changing Timing 3–195. . . . . . . . . . . . . . . . .
Setting Pointers 3–195. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Manual Pointer Control 3–196. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous Pointer Movement 3–201. . . . . . . . . . . . . . . . . . . . . .
Changing Timing 3–203. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Generating Pointer Sequences 3–206. . . . . . . . . . . . . . . . . . . . . . . . . .
Starting Pointer Sequences 3–212. . . . . . . . . . . . . . . . . . . . . . . . .
Starting Pointer Sequences with Tributary Offset 3–216. . . . . . . .
Testing Automatic Protection Switching 3–217. . . . . . . . . . . . . . . .
Setting the APS Mode 3–217. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the K1 Byte 3–218. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the K2 Byte 3–222. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transmitting the K1 and K2 Bytes 3–227. . . . . . . . . . . . . . . . . . . . . .
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Viewing the Network Response to APS Commands 3–228. . . . . . . . .
Viewing Results 3–229. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
G.826, M.2101.1, M.2100 and G.821 Analysis 3–229. . . . . . . . . . . .
Viewing a Summary of Results 3–230. . . . . . . . . . . . . . . . . . . . . . . . .
V iewing Detailed Results 3–231. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Displaying an Analysis of Test Results 3–237. . . . . . . . . . . . . . . .
V iewing Measurement Histories 3–243. . . . . . . . . . . . . . . . . . . . . . . .
Types of Graphs 3–243. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Elements of the History Graph Display 3–248. . . . . . . . . . . . . . . . . . .
Graph Name 3–248. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
History Resolution 3–248. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Out Indicator 3–248. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Measurement Results at Cursor Position 3–249. . . . . . . . . . . . . . .
Zooming History Graphs 3–250. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Panning History Graphs 3–251. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Changing the Displayed History Graph 3–252. . . . . . . . . . . . . . . . . . .
Displaying Mini-Graphs 3–252. . . . . . . . . . . . . . . . . . . . . . . . . . .
Saving and Recalling Results 3–253. . . . . . . . . . . . . . . . . . . . . . . . . .
Saving Test Results to Disk 3–253. . . . . . . . . . . . . . . . . . . . . . . . .
Recalling Test Results from Disk 3–256. . . . . . . . . . . . . . . . . . . . .
Deleting Test Results from Disk 3–257. . . . . . . . . . . . . . . . . . . . .
Recalling Test Results from Memory 3–258. . . . . . . . . . . . . . . . .
Printing Results 3–258. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Printing Main Results or Error Analysis 3–258. . . . . . . . . . . . . . .
Printing History Graphs 3–260. . . . . . . . . . . . . . . . . . . . . . . . . . . .
CTS 850 SDH/PDH Test Set User Manual
Changing Instrument Settings 3–261. . . . . . . . . . . . . . . . . . . . . . . .
Viewing the Instrument Configuration 3–261. . . . . . . . . . . . . . . . . . .
Setting the Display Brightness 3–262. . . . . . . . . . . . . . . . . . . . . . . . . .
Turning the Beeper On and Off 3–263. . . . . . . . . . . . . . . . . . . . . . . . .
Setting the Date 3–264. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the Time 3–264. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Changing the Printer Setup 3–265. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifying the Printer or File Type 3–266. . . . . . . . . . . . . . . . . . .
Setting RS-232 Parameters 3–266. . . . . . . . . . . . . . . . . . . . . . . . .
Setting the Print User & Company Text 3–268. . . . . . . . . . . . . . .
Setting Remote Control Parameters 3–268. . . . . . . . . . . . . . . . . . . . . .
Setting the GPIB Address 3–269. . . . . . . . . . . . . . . . . . . . . . . . . .
Setting RS-232 Parameters 3–270. . . . . . . . . . . . . . . . . . . . . . . . .
Running Instrument Self Tests 3–272. . . . . . . . . . . . . . . . . . . . . . . . . .
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Appendices
Appendix A: Menu Maps A–1. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appendix B: Status and Error Messages B–1. . . . . . . . . . . . . . . .
Appendix C: Default Factory Settings C–1. . . . . . . . . . . . . . . . . .
Appendix D: Specifications D–1. . . . . . . . . . . . . . . . . . . . . . . . . . .
Appendix E: Incoming Inspection Test E–1. . . . . . . . . . . . . . . . .
Appendix F: Example Disk Contents F–1. . . . . . . . . . . . . . . . . . .
Appendix G: Rear-Panel Connectors G–1. . . . . . . . . . . . . . . . . .
VGA Video Output G–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GPIB Port G–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RS-232 Port G–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Calibration Signal Output G–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overhead Add/Drop Port G–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
External Clock Input (2 Mb/s or 2 MHz) G–7. . . . . . . . . . . . . . . . .
Handset Interface G–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jitter Inputs and Outputs G–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BITS OUT G–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
J/CLK IN G–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
J/CLK OUT G–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ANALOG OUT G–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appendix H: Changing Optical Port Connectors H–1. . . . . . . . .
Appendix I: Packing for Shipment I–1. . . . . . . . . . . . . . . . . . . .
Appendix J: Telecommunications Technology J–1. . . . . . . . . . .
Basic SDH Signal J–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PDH Basics J–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Asynchronous Multiplexing J–6. . . . . . . . . . . . . . . . . . . . . . . . . . .
PDH Multiplexing J–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
G.826, M.2101.1, M.2100 and G.821 Analysis J–10. . . . . . . . . . . . .
Jitter & Wander Tutorial J–16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Principles & Metrics of Jitter & Wander J–20. . . . . . . . . . . . . . . . . .
Appendix K: Cleaning Instructions K–1. . . . . . . . . . . . . . . . . . . .
Glossary and ITU–T Standards
Index
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CTS 850 SDH/PDH Test Set User Manual
List of Figures
Figure 1–1: Installing the Accessory Pouch 1–8. . . . . . . . . . . . .
Figure 1–2: Inserting the Pouch Under the Front
Panel Trim 1–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 1–3: Location of the D-Ring on the Accessory Pouch 1–10
Figure 1–4: Rear-Panel Controls and Connectors
Used in Setup 1–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 1–5: ON/STBY Button 1–14. . . . . . . . . . . . . . . . . . . . . . . .
Figure 2–1: Controls Located Ar ound the Display 2–2. . . . . . . .
Table of Contents
Figure 2–2: Front-Panel Contr ols, Indicators, and
Connectors 2–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 2–3: Rear-Panel Controls and Connectors 2–4. . . . . . . .
Figure 2–4: Status Lights 2–5. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 2–5: Major Areas of the Display 2–6. . . . . . . . . . . . . . . .
Figure 2–6: Specific Elements of the Display 2–7. . . . . . . . . . . .
Figure 2–7: The Five Menus 2–9. . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 2–8: Menus and Pages 2–11. . . . . . . . . . . . . . . . . . . . . . . . .
Figure 2–9: Menu Select Buttons 2–12. . . . . . . . . . . . . . . . . . . . . .
Figure 2–10: How to Display a Page 2–13. . . . . . . . . . . . . . . . . . .
Figure 2–11: Help Dialog Box 2–14. . . . . . . . . . . . . . . . . . . . . . . . .
Figure 2–12: Selecting a Parameter 2–17. . . . . . . . . . . . . . . . . . . .
Figure 2–13: Selecting Choices From a List 2–18. . . . . . . . . . . . .
Figure 2–14: Selecting USER DEFINED 2–19. . . . . . . . . . . . . . . .
Figure 2–15: Entering a Numeric Value 2–20. . . . . . . . . . . . . . . .
CTS 850 SDH/PDH Test Set User Manual
Figure 2–16: Selecting a Byte for Editing 2–21. . . . . . . . . . . . . . .
Figure 2–17: Editing a Byte 2–22. . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 2–18: Selecting a Text String for Editing 2–23. . . . . . . . .
Figure 2–19: Editing a Text String 2–24. . . . . . . . . . . . . . . . . . . . .
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Figure 2–20: PDH multiplexing by steps 2–28. . . . . . . . . . . . . . . .
Figure 2–21: SDH multiplexing hierarchy 2–31. . . . . . . . . . . . . .
Figure 2–22: Setup for the Tutorial 2–36. . . . . . . . . . . . . . . . . . . .
Figure 2–23: The TRANSMIT SETTINGS Page of
the TRANSMIT Menu 2–37. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 2–24: The TEST CONTROL Page of the
UTILITY Menu 2–39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 2–25: The TEST SUMMARY Page of the
RESULTS Menu 2–40. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 2–26: The MAIN RESULTS Page of the
RESULTS Menu 2–41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 2–27: The Message Line and Test Status Indicator 2–42.
Figure 2–28: The Defects & Anomalies Page of
the TRANSMIT Menu 2–43. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 2–29: Example of POINTERS & TIMING Page of
the TRANSMIT Menu 2–45. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 2–30: Adjusting Frequency Offset Using the Knob 2–48.
Figure 2–31: The SECTION OVERHEAD Page of
the TRANSMIT Menu 2–49. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 2–32: The Display in Edit Mode 2–51. . . . . . . . . . . . . . . . .
Figure 2–33: The TEST SUMMARY Page of the
RESULTS Menu 2–53. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 2–34: The MAIN RESULTS Page of the
RESULTS Menu 2–54. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–1: Setup to Check Network Continuity 3–2. . . . . . . . .
Figure 3–2: Setup to Check a Transmission Link 3–4. . . . . . . . .
Figure 3–3: Setup to Test Mapping and Demapping 3–7. . . . . .
Figure 3–4: Setup to Check Error and Alarm Response 3–10. . .
Figure 3–5: Setup to Check Pointer Movements 3–15. . . . . . . . .
Figure 3–6: Setup to Check Line Frequency Offset
Response 3–17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–7: Setup to Monitor Performance 3–20. . . . . . . . . . . . .
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Figure 3–8: Setup to Check Onset-of-Errors
Jitter Tolerance 3–24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–9: Setup to Check 1 dB Power Penalty
Jitter Tolerance 3–26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–10: Setup to Check Clock-to-Line
Jitter Transfer 3–29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–11: Setup to Check Video Timing Quality 3–31. . . . . . .
Material below this line appears only in reference manual–on–CD
Figure 3–12: The Test Control Page 3–34. . . . . . . . . . . . . . . . . . . .
Figure 3–13: Setting a USER DEFINED Test Duration 3–35. . .
Figure 3–14: Elapsed Time and Bar Graph Indicators 3–38. . . .
Figure 3–15: The SAVE INSTRUMENT SETUPS Page 3–43. . .
Figure 3–16: The RECALL INSTRUMENT
SETUPS Page 3–45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–17: Selecting a Disk File for Deleting 3–46. . . . . . . . . . .
Figure 3–18: The SAVE PASS/FAIL TESTS Page 3–47. . . . . . . .
Figure 3–19: Entering Fail If Conditions 3–55. . . . . . . . . . . . . . .
Figure 3–20: The TEST BEGIN Dialog Box 3–58. . . . . . . . . . . . .
Figure 3–21: Selecting a Pass/Fail Test for Deleting 3–61. . . . . . .
Figure 3–22: The AUTOSCAN Dialog Box Showing
Signal Structure 3–64. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–23: Viewing Tributary Signal Structure 3–65. . . . . . . .
Figure 3–24: The Meaning of the Icons in the
Autoscan Dialog Box 3–66. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–25: Front-Panel Status Lights 3–67. . . . . . . . . . . . . . . .
Figure 3–26: Transmit Settings Menu 3–71. . . . . . . . . . . . . . . . . .
Figure 3–27: Sequence for Setting SDH Signal
Parameters 3–72. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CTS 850 SDH/PDH Test Set User Manual
Figure 3–28: Sequence for Setting SDH Signal
Parameters When Mapping a PDH Signal 3–72. . . . . . . . . . .
Figure 3–29: SDH Transmit Rates 3–74. . . . . . . . . . . . . . . . . . . . .
Figure 3–30: CTS 850 in Through Mode 3–76. . . . . . . . . . . . . . . .
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Figure 3–31: Choosing TU Under Test from SDH Structure 3–80
Figure 3–32: Choosing VC–4c from SDH Structur e 3–81. . . . . .
Figure 3–33: Choosing SDH Output 3–83. . . . . . . . . . . . . . . . . . .
Figure 3–34: Mapping a Tributary Signal 3–87. . . . . . . . . . . . . . .
Figure 3–35: Editing the User Word Byte 3–91. . . . . . . . . . . . . . .
Figure 3–36: Editing the S1 Section Overhead Byte 3–93. . . . . .
Figure 3–37: Editing an Overhead Byte 3–94. . . . . . . . . . . . . . . .
Figure 3–38: Editing the J1 Path Trace Byte 3–99. . . . . . . . . . . .
Figure 3–39: Adding Data into the DCC 3–101. . . . . . . . . . . . . . . .
Figure 3–40: Adding Data into the User Channel 3–102. . . . . . . . .
Figure 3–41: Choosing Trace Settings 3–103. . . . . . . . . . . . . . . . . .
Figure 3–42: Choosing Signals Labels 3–104. . . . . . . . . . . . . . . . . .
Figure 3–43: Choosing Overhead PRBS Test 3–105. . . . . . . . . . . .
Figure 3–44: Sequence for Setting PDH Signal
Parameters 3–107. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–45: Sequence for Setting PDH Signal Parameters
when mapping a PDH Signal 3–107. . . . . . . . . . . . . . . . . . . . . .
Figure 3–46: TX Settings from Transmit Setting Menu 3–108. . . .
Figure 3–47: PDH Transmit Rates 3–110. . . . . . . . . . . . . . . . . . . . .
Figure 3–48: Editing the User Word 3–117. . . . . . . . . . . . . . . . . . .
Figure 3–49: Sequence for Setting SDH Signal
Parameters 3–120. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–50: Sequence for Setting SDH Signal
Parameters When Demapping a PDH Signal 3–120. . . . . . . . .
Figure 3–51: SDH Receive Rates 3–121. . . . . . . . . . . . . . . . . . . . . .
Figure 3–52: Example of SDH Structure 3–124. . . . . . . . . . . . . . . .
Figure 3–53: Signal Status, Payload Frequency menu 3–130. . . . .
Figure 3–54: Analysis Config, Round Trip Delay Offset 3–131. . .
Figure 3–55: RX CAS & Voice, Receive Settings Menu 3–133. . . .
Figure 3–56: Setting PDH Mapping 3–135. . . . . . . . . . . . . . . . . . . .
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Figure 3–57: J1 Path Trace Message Received by
the CTS 850 3–142. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–58: Dropping Data fr om the DCC 3–143. . . . . . . . . . . . .
Figure 3–59: Dropping the User Channel Data Byte 3–144. . . . . .
Figure 3–60: Sequence for Setting PDH Signal
Parameters (non–demuxed) 3–147. . . . . . . . . . . . . . . . . . . . . . .
Figure 3–61: Sequence for Setting PDH Signal Parameters
when demultiplexing a PDH Signal (demuxed) 3–147. . . . . . .
Figure 3–62: 64k RX Settings 3–148. . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–63: PDH Signal Receive Rates 3–150. . . . . . . . . . . . . . . .
Figure 3–64: RX CAS & Voice 3–156. . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–65: Example of TEST SETUP Jitter & Wander 3–160.
Figure 3–66: Example of TEST SETUP, BER Method 3–164. . . .
Figure 3–67: Example of TRANSMIT, Jitter menu 3–170. . . . . . .
Figure 3–68: RECEIVE, Setting Jitter Mode,
Peak–to–Peak 3–175. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–69: Jitter High–Pass Filters 3–178. . . . . . . . . . . . . . . . . .
Figure 3–70: RESULTS, Jitter and Timing Quality 3–181. . . . . . .
Figure 3–71: RESULTS, Wander and Line Frequency 3–182. . . .
Figure 3–72: Example of UTILITY, Calibration 3–183. . . . . . . . .
Figure 3–73: Example of Transmit, Defects & Anomalies 3–186. .
Figure 3–74: Set Anomaly, Defect, Failure layer
in the Mux chain 3–193. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–75: Manual Pointer Control Choices 3–196. . . . . . . . . . .
Figure 3–76: Alternating Burst Pointer Movement 3–198. . . . . . .
Figure 3–77: Incrementing Pointer Location Once
Every Two Milliseconds 3–203. . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–78: Offsetting the Transmit Rate by +4.6 ppm 3–205. . .
CTS 850 SDH/PDH Test Set User Manual
Figure 3–79: The Three Periods of a Pointer Sequence 3–206. . . .
Figure 3–80: An Example of a Pointer Sequence 3–207. . . . . . . . .
Figure 3–81: Status Display While Pointer Sequences are
Running 3–215. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Figure 3–82: Example, Pointer Sequence (Trib Offset) 3–216. . . .
Figure 3–83: The APS COMMANDS Page 3–218. . . . . . . . . . . . . .
Figure 3–84: The RECEIVE Column on the APS
COMMANDS Page 3–228. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–85: The Test Summary Page 3–231. . . . . . . . . . . . . . . . . .
Figure 3–86: Results, SDH Path Defects 3–233. . . . . . . . . . . . . . . .
Figure 3–87: Results, PDH Anomalies 3–233. . . . . . . . . . . . . . . . . .
Figure 3–88: Results, SDH Pointers 3–234. . . . . . . . . . . . . . . . . . . .
Figure 3–89: Results, SDH G.826 Analysis 3–234. . . . . . . . . . . . . .
Figure 3–90: Results, PDH G.826 Analysis 3–235. . . . . . . . . . . . . .
Figure 3–91: Results, SDH M.2101.1 Analysis 3–235. . . . . . . . . . .
Figure 3–92: Results, PDH M.2100 Analysis 3–236. . . . . . . . . . . . .
Figure 3–93: Results, G.821 Pattern Bit Analysis 3–236. . . . . . . . .
Figure 3–94: Bar Graphs Showing Code Violations
and Errored Seconds 3–244. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–95: Line Graph Showing Pointer Value 3–245. . . . . . . . .
Figure 3–96: On/Off Graphs Showing Failures
and Alarms 3–246. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–97: Elements of a History Graph 3–249. . . . . . . . . . . . . .
Figure 3–98: Changing the Displayed History Graph 3–253. . . . .
Figure 3–99: The SAVE RESULTS Page 3–255. . . . . . . . . . . . . . . .
Figure 3–100: The RECALL RESULTS Page 3–257. . . . . . . . . . .
Figure 3–101: The PRINT CONTROL Dialog Box 3–259. . . . . . .
Figure 3–102: The MISC SETTINGS Page 3–263. . . . . . . . . . . . .
Figure 3–103: The PRINTER SETUP Page 3–265. . . . . . . . . . . . .
Figure 3–104: The REMOTE CONTROL Page 3–270. . . . . . . . . .
Figure E–1: Front-Panel Status Lights E–1. . . . . . . . . . . . . . . . .
Figure G–1: CTS 850 Rear Panel Connectors G–1. . . . . . . . . . .
Figure G–2: The VGA Video Output Connector G–2. . . . . . . . .
Figure G–3: The RS-232 Port G–3. . . . . . . . . . . . . . . . . . . . . . . . .
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CTS 850 SDH/PDH Test Set User Manual
Table of Contents
Figure G–4: The Overhead Add/Drop Port G–5. . . . . . . . . . . . .
Figure H–1: Removing the Optical Bulkhead Connector H–2. .
Figure H–2: FC Optical Bulkhead Assembly H–3. . . . . . . . . . . .
Figure H–3: ST Optical Bulkhead Assembly H–3. . . . . . . . . . . .
Figure H–4: DIN 47256 Optical Bulkhead Assembly H–4. . . . . .
Figure H–5: SC Optical Bulkhead Assembly H–4. . . . . . . . . . . .
Figure J–1: Pulse Code Modulation J–3. . . . . . . . . . . . . . . . . . . .
Figure J–2: Time Division Multiplexing J–4. . . . . . . . . . . . . . . .
Figure J–3: Bit & Byte Interleaving J–5. . . . . . . . . . . . . . . . . . . .
Figure J–4: Higher Order Multiplexing Hierarchy J–6. . . . . . .
Figure J–5:Multiplexing and Digital Transmission J–7. . . . . . .
Figure J–6: Asynchronous Multiplexing J–8. . . . . . . . . . . . . . . .
Figure J–7: PDH Multiplexing by steps J–9. . . . . . . . . . . . . . . . .
Figure J–8: Guaranteeing G.821 Service Quality J–13. . . . . . . . .
Figure J–9: Simple SDH/PDH network model J–17. . . . . . . . . . .
Figure J–10: Jitter as viewed on an oscilloscope J–20. . . . . . . . . .
Figure J–11: Phase variation between two signals J–21. . . . . . . .
Figure J–12: Frequency ranges of jitter and wander J–21. . . . . .
Figure J–13: Example of TIE wander measurement J–23. . . . . .
Figure J–14: Functional definition of MTIE J–24. . . . . . . . . . . . .
Figure J–15: Example of MTIE wander measurement J–25. . . .
Figure J–16: Functional definition of TDEV J–25. . . . . . . . . . . .
Figure J–17: Example of TDEV wander measurement J–26. . . .
CTS 850 SDH/PDH Test Set User Manual
xix
Table of Contents
List of Tables
Table 1–1: Where to find Information 1–4. . . . . . . . . . . . . . . . .
Table 1–2: Fuse and Fuse Cap Part Numbers 1–12. . . . . . . . . . .
Table 1–3: Power Requirements 1–13. . . . . . . . . . . . . . . . . . . . . .
Table 2–1: Icons that Appear in the Display 2–8. . . . . . . . . . . .
Table 2–2: CTS 850 Disk File Types 2–25. . . . . . . . . . . . . . . . . . .
Table 2–3: SDH Multiplexing Structure 2–31. . . . . . . . . . . . . . . .
Table 3–1: LTE Responses to Errors and Alarms 3–10. . . . . . . .
Material below this line appears only in reference manual–on–CD
Table 3–2: Test Duration Limits 3–36. . . . . . . . . . . . . . . . . . . . . .
Table 3–3: Actions You Cannot Perform While a
Test is Running 3–39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 3–4: Fail If Conditions of a Pass/Fail Test 3–50. . . . . . . . .
Table 3–5: Green Status Lights 3–67. . . . . . . . . . . . . . . . . . . . . . .
Table 3–6: Red and Yellow Status Lights 3–68. . . . . . . . . . . . . . .
Table 3–7: TX Rates and Structures 3–84. . . . . . . . . . . . . . . . . . .
Table 3–8: Payload Framing/ Source 3–84. . . . . . . . . . . . . . . . . .
Table 3–9: Test Patterns, Background Pattern 3–85. . . . . . . . . . .
Table 3–10: Choices for Bits 5, 6, and 7 of the V5 Byte 3–95. . . .
Table 3–11: Overhead Bytes That Cannot Be Edited 3–95. . . . .
Table 3–12: Bytes You Cannot Edit Due to
Parameter Settings 3–96. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 3–13: Transmit Trace Settings Choices 3–102. . . . . . . . . . .
Table 3–14: T ransmit Overhead Testing Choices 3–105. . . . . . . .
Table 3–15: 64k TX Setting Choices 3–108. . . . . . . . . . . . . . . . . . .
Table 3–16: PDH Rate Line Codes 3–112. . . . . . . . . . . . . . . . . . . .
Table 3–17: RX Rates and Structures 3–126. . . . . . . . . . . . . . . . . .
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CTS 850 SDH/PDH Test Set User Manual
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Table 3–18: Payload Framing/ Source 3–127. . . . . . . . . . . . . . . . .
Table 3–19: Test Patterns 3–127. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 3–20: Signal Status Choices 3–131. . . . . . . . . . . . . . . . . . . . .
Table 3–21: Analysis Config Choices 3–133. . . . . . . . . . . . . . . . . .
Table 3–22: 64k RX Settings choices 3–148. . . . . . . . . . . . . . . . . . .
Table 3–23: RX CAS & Voice Choices 3–157. . . . . . . . . . . . . . . . .
Table 3–24: Maximum Error Rates for SDH Signals 3–188. . . . .
Table 3–25: Maximum Error Rates for TU Mappings
and PDH signals 3–189. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 3–26: Anomaly, Defect, Transmit Failure options 3–193. . .
Table 3–27: Pointer Sequences Generated 3–207. . . . . . . . . . . . . .
Table 3–28: Availability of Pointer Sequences 3–211. . . . . . . . . . .
Table 3–29: Status Lines for Pointer Sequences 3–215. . . . . . . . .
Table 3–30: Choices for Bits 1–4 of the K1 Byte
When Mode is Set to Ring 3–219. . . . . . . . . . . . . . . . . . . . . . . .
Table 3–31: Choices for Bits 1–4 of the K1 Byte
When Mode is Set to Span 3–220. . . . . . . . . . . . . . . . . . . . . . . .
Table 3–32: Choices for Bits 5–8 of the K1 Byte 3–222. . . . . . . . .
Table 3–33: Choices for Bits 1–4 of the K2 Byte 3–224. . . . . . . . .
Table 3–34: Choices for Bit 5 of the K2 Byte When
Mode is Set to Span 3–225. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 3–35: Choices for Bit 5 of the K2 Byte When
Mode is Set to Ring 3–225. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 3–36: Choices for Bits 6–8 of the K2 Byte 3–226. . . . . . . . .
Table 3–37: Results Displayed on MAIN RESULTS Page 3–232.
Table 3–38: SDH Results 3–237. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 3–39: PDH Results 3–238. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 3–40: Results Displayed on Jitter & Wander
RESULTS Page 3–239. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CTS 850 SDH/PDH Test Set User Manual
Table 3–41: Error Analysis 3–240. . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 3–42: Performance Analysis 3–242. . . . . . . . . . . . . . . . . . . .
Table 3–43: Measurements Displayed as Bar Graphs 3–244. . . . .
xxi
Table of Contents
Table 3–44: Measurements Displayed as a Line Graph 3–246. . .
Table 3–45: Measurements Displayed as On/Off
Graphs for SDH Rates 3–247. . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 3–46: Measurements Displayed as On/Off
Graphs for PDH Rates 3–247. . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 3–47: Time Represented by Bars on
History Graph 3–250. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 3–48: Lines of Instrument Configuration Page 3–261. . . . .
Table C–1: Default Factory Settings C–1. . . . . . . . . . . . . . . . . . .
Table D–1: General CTS 850 Specifications D–1. . . . . . . . . . . . .
Table D–2: 2 Mb/s, 34 Mb/s, 140 Mb/s,
TU12, TU3 Capabilities D–13. . . . . . . . . . . . . . . . . . . . . . . . . .
Table D–3: Jitter and Wander D–24. . . . . . . . . . . . . . . . . . . . . . . .
Table D–4: Environmental Specifications D–32. . . . . . . . . . . . . .
Table D–5: Physical Characteristics D–34. . . . . . . . . . . . . . . . . . .
Table D–6: Certifications and compliances D–36. . . . . . . . . . . . .
Table E–1: Required Equipment E–2. . . . . . . . . . . . . . . . . . . . . .
Table G–1: VGA Video Output Connector
Pin Assignment G–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table G–2: RS-232 Rear Panel Connector
Pin Assignment G–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table G–3: Overhead Channels Added G–5. . . . . . . . . . . . . . . .
Table G–4: Overhead Channels Dropped G–5. . . . . . . . . . . . . .
Table G–5: Overhead Add/Drop Port Data Signal
Pin Assignments G–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table G–6: Overhead Add/Drop Port Additional
Pin Assignments G–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table G–7: Overhead Add/Drop Additional
Pin Assignments G–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table G–8: Handset Interace Specifications G–8. . . . . . . . . . . . .
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CTS 850 SDH/PDH Test Set User Manual
Table of Contents
Table J–1: Non–Synchronous Hierarchy J–1. . . . . . . . . . . . . . .
Table J–2: Synchronous Hierarchy J–2. . . . . . . . . . . . . . . . . . . .
CTS 850 SDH/PDH Test Set User Manual
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Table of Contents
xxiv
CTS 850 SDH/PDH Test Set User Manual
General Safety Summary
Review the following safety precautions to avoid injury and prevent
damage to this product or any products connected to it. To avoid
potential hazards, use this product only as specified.
Only qualified personnel should perform service procedures.
While using this product, you may need to access other parts of the
system. Read the General Safety Summary in other system manuals
for warnings and cautions related to operating the system.
CTS 850 SDH/PDH Test Set
Injury Precautions
Use Proper Power Cord
To avoid fire hazard, use only the power cord specified for this
product.
Avoid Electric Overload
To avoid electric shock or fire hazard, do not apply a voltage to a
terminal that is outside the range specified for that terminal.
Ground the Product
This product is grounded through the grounding conductor of the
power cord. To avoid electric shock, the grounding conductor must
be connected to earth ground. Before making connections to the
input or output terminals of the product, ensure that the product is
properly grounded.
Do Not Operate Without Covers
To avoid electric shock or fire hazard, do not operate this product
with covers or panels removed.
CTS 850 SDH/PDH Test Set User Manual
xxv
General Safety Summary
Use Proper Fuse
To avoid fire hazard, use only the fuse type and rating specified for
this product.
Do Not Operate in Wet/Damp Conditions
To avoid electric shock, do not operate this product in wet or damp
conditions.
Do Not Operate in Explosive Atmosphere
To avoid injury or fire hazard, do not operate this product in an
explosive atmosphere.
Wear Eye Protection
To avoid eye injury, wear eye protection if there is a possibility of
exposure to high-intensity rays.
Product Damage Precautions
Use Proper Power Source
Do not operate this product from a power source that applies more
than the voltage specified.
Provide Proper V entilation
To prevent product overheating, provide proper ventilation.
Do Not Operate With Suspected Failures
If you suspect there is damage to this product, have it inspected by
qualified service personnel.
xxvi
CTS 850 SDH/PDH Test Set User Manual
Safety Terms and Symbols
Terms in This Manual
These terms may appear in this manual:
WARNING. Warning statements identify conditions or practices that
could result in injury or loss of life.
CAUTION. Caution statements identify conditions or practices that
could result in damage to this product or other property.
General Safety Summary
DANGER
High Voltage
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.
Symbols on the Product
The following symbols may appear on the product:
Protective Ground
(Earth) Terminal
ATTENTION
Refer to
Manual
Double
Insulated
CTS 850 SDH/PDH Test Set User Manual
xxvii
General Safety Summary
Certifications and Compliances
CSA Certified Power Cords
CSA Certification includes the products and power cords appropriate
for use in the North America power network. All other power cords
supplied are approved for the country of use.
xxviii
CTS 850 SDH/PDH Test Set User Manual
Preface
This manual describes how to use the Tektronix CTS850 SDH/PDH
Test Set. This paper–based manual, along with an accompanying
user manual on CD–ROM, is your primary source of information
about how the CTS850 SDH/PDH Test Set functions.
How This Manual is Organized
The CTS850 information is divided into four sections: Getting
Started, Operating Basics, Reference, and Appendices.
Getting Started provides an overview of the CTS850 and
describes first time operation. Both the paper–based user manual
and the reference manual–on–CD contain this information.
Operating Basics explains the basic principles of operating the
CTS850. The Operating Basics section also includes a tutorial
which introduces you to most of the capabilities of the CTS850
test set. Both the paper–based user manual and the reference
manual–on–CD contain this information.
Reference provides explanations of how to perform detailed tasks.
The paper–based manual includes information on Basic Test
Procedures and a detailed look at Jitter/Wander Testing. All other
Reference information is contained in the reference manual–on–
CD.
The Appendices provide a listing of specifications, default factory
settings, an incoming inspection test, a section on telecommunications technology, a listing of relevant ITU–T standards, and
other useful information. All Appendices information is contained
on the reference manual–on–CD only.
CTS850 SDH/PDH Test Set User Manual
xxix
Preface
Conventions
This manual uses the following conventions:
The names of front-panel controls and menus appear in all upper
case letters, for example, TRANSMIT and HELP.
Names appear in the same case in this manual as they appear on
the display of the CTS850, for example, Test Duration and USER
DEFINED.
Within a procedure, a specific button to be pressed or a parameter
to be selected appears in boldface print. For example, press the
AUTOSCAN button or select Continuous.
The Tutorial and the Reference sections frequently present
procedures in tables. Perform the procedure by reading from left to
right in the table (see example below). The word none in a cell
indicates that no action is required.
Press Menu
Button
Begin with
Step 1
Some procedures require several iterations of highlighting
parameters and selecting choices. Some procedures may require
more than one menu button or menu page selection as well.
Select
Menu Page
Step 2 Step 3 Step 4
Highlight
Parameter
Step 5 Step 6
Step 7 Step 8, CTS850 instruction
Select Choice
is complete
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CTS850 SDH/PDH Test Set User Manual
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