SONET/SDH Electrical Interface User's Guide
Contents
1. HP Broadband Series Test Systen 1 tive Sessi 155 Mb s Optical Line Interface or 52 Mb s Optical Line Interface User s Guide AAL Users Guide 2 3 Getting Started Overview Connecting to an Optical Line Interface Before measurements are made connect the Electrical Interface to the optical line interface module using RF cables with an SMA connector on one end and an SMB connector on the other Connections are shown in Figure 2 1 Figure 2 1 Interconnecting the modules HP E1697A Optical Line TEA Cs HP ENBB3A Interface or HP E1617A x GA Bx SONET SDH Optical Line Interface Electrical Interface SES Optical ECL only Receive A ECL only SONIA 2 4 Getting Started Overview Connecting to the System Under Test Connect the Electrical Interface to the System Under Test as shown Figure 2 2 Connecting to the system under test HP E1663A HARAS SONET SDH Electrical Interface All Ports Transmit Data In ECL only System Under Test Receive Clock Out 2 5 Getting Started Starting a Test Session Starting a Test Session Hewlett Packard Broadband Series o Brc File Session Systen Active Sessions The HP 75 C Copyright Active Instruments2. Interfac ace Interface SONET SDH Electrical Interface Receiver 7 a Gain Odb Q 20 db Transmitter Set signal amplification See below t y 155 Mb s Receiver Setting the 20 dB radio button on directs the received signal through the amplifi cation circuitry which provides a fixed 20 dB gain When the 0 dB radio button is selected the received signal is not amplified 1 4 View the application and firmware versions and module identification details SONET SDH ELECTRICAL INTERFACE Code O sorai r Electrical All Ports Transmit h LA Clock Son ECL only Receive rock son fess Front Panel at a Glance INDICATORS ACCESS This LED indicates the Electrical Interface is being accessed over the VXIbus backplane CODE This LED is not used in the HP Broadband Series Test System SIGNAL This LED indicates the presence of a signal at the input to the receiver LINE CONNECTORS ELECTRICAL IN This BNC connector provides a 75 Q unbalanced data input interface which accepts incoming data for the receiver The input data rate is 155 52 Mb s and the maximum input amplitude is 0 5 Vpk The connector has open and short circuit protection and will withstand a maximum input of 5 V ELECTRICAL OUT This BNC connector provides a 75 Q unbalanced data output interface for outgoing cod
3. 6 Figure 2 1 Module address settings 2 4 Figure 2 2 Interconnecting the modules 2 6 Figure 2 3 Connecting to the system under test 2 7 Figures Introduction Introduction This chapter provides an overview of the HP E1663A SONET SDH Electrical Interface It covers ageneral description of the Electrical Interface including identification and accessories e the Control panel e the front panel indicators and connectors e the functional features e safety considerations ESD precautions service storage and shipment 1 2 Overview The HP E1663A SONET SDH Electrical Interface is a member of the HP Broad band Series of modular VXI based B ISDN test instruments The HP E1663A acts as the interface between the HP Broadband Series Test System and the System Under Test transmitting and receiving 155 52 Mb s or 52 Mb s SONET SDH trans mission signals The HP E1663A is used in conjunction with the HP E1697A 155 Mb s Optical Line Interface or the HP E1617A 52 Mb s Optical Line Interface and communication between the modules is by SMA to SMB Radio Frequency RF adaptor cables See Connecting to an Optical Line Interface page 2 4 The Electrical Interface provides signal encoding at the appropriate levels and format required by the System Under Test Data is transmitted in the binary CMI Coded Mark Inversion format at 155 52 Mb s or 52 Mb s The data stream received from the System Under Test is CMI at 155 52
4. Mb s or 52 Mb s The clock is recovered from the incoming data and automatic compensation for cable loss and signal loss is provided Module Identification An identification label is attached to the Electrical Interface clamshell enclosure The serial number is in the form 0000U00000 It is in two parts the first four digits and the letter are the serial prefix and the last five digits are the suffix The prefix is the same for all identical modules and changes only when a change is made to the module The suffix however is assigned sequentially and is unique to each module The contents of this manual apply to instruments with the serial prefix es listed under SERIAL NUMBERS on the title page 1 3 Manage Configuration files with these menus See Getting Started in your HP E1697A 155 Mb s Optical Line Interface User s Guide Control Panel at a Glance HP Broadband Series Test System File Session System Active Sessions Protocol Selection Services Active Instruments Adaptation Es Unused Ports 5 S cells sip 12 Convergence losa pic Physical ANSE 883 348 POR Module Selection Start Appl uit appt STS 3c STH 1 Slot 4 5 10 Application Type Monitor Simulator y Perfernance Test Port 10 SONET SDH Electrical Interface File 155 Mb s 45 s Module MIA 883 Line RUB PAZ
5. Unused Ports Start Appl Quit Appl Protocol Selection convergence SITES EM NIE Module Selection HP Broadband Series Test System Services Adaptation EE cons Physical EE 34H PDH STS 3c STH 1 Application Type Monitor Simulator y Performance Test 4 5 9 10 1155 Mb s 45 Mb s 34 Mb s SONET SDH Module Rial WIEBELT Line Electrical Line I F Interface Interfacef Interface Log in to the HP Broadband Series Test System Refer to Setting Up a Test Session and Starting a Test Session in the 155 Mb s Optical Line Interface User s Guide Test System 2 6 before logging into the HP Broadband Series C Function Reference C Function Reference The HP E1663A SONET SDH Electrical Interface cannot be used stand alone It must be used in conjunction with an HP E1697A 155 Mb s Optical Line Interface module This chapter describes the Electrical Interface library See your 155 Mb s Optical Line Interface User s Guide for information on how to write test programs using the HP Broadband Series libraries 3 2 Electrical Interface Library The SONET SDH Electrical Interface library 1ibeif155 a provides functions to control the module Its header file is lt hpt eif155 h gt All Electrical Interface library functions have the prefix HptEif155 All of these functions returns 1 if an error occurs 0 otherwise Library Initialization
6. and Connecting to the System Under Test page 2 5 for further details Typical Configuration HP E1400B VXI mainframe ECL 0 HP F1499A HP F1663A System Under Test V 382 HP E1697A Controller See the HP E1697A 155 Mb s Optical Line Interface User s Guide HP p n E1697 90002 for guidance when configuring the 155 Mb s Optical Line Interface Transmitter The HP E1697A supplies binary NRZ nonreturn to zero formatted data signals and associated clock signals to the input of the Electrical Interface The Electrical Interface then applies CMI encoding to the signal before passing it to the System Under Test 1 6 Introduction Functional Features Receiver The receiver side of the Electrical Interface provides signal amplification Vf equalization clock recovery and CMI decoding at 155 52 Mb s The signal is then passed to the HP E1697A for processing Monitor Point Access The signal amplification circuitry provides a fixed 20 dB gain to recover typical monitor point signals The signal can be switched through the monitor amplifier as required Equalization The equalization circuitry automatically compensates for signal degradation caused by cable loss in the network and applies the vf law for cables Clock Recovery and Decoding The receiver clock is recovered from the data stream for the subsequent decoding circuitry Decoding produces data signals in binary NRZ fo
7. cannot be obtained instruc tions for repackaging with commercially available materials are as follows 1 Wrap the module in anti static plastic to reduce the possibility of damage caused by ESD 2 Use a double walled corrugated cardboard carton of 90 kg 200 Ib test strength The carton must be large enough to allow 5 to 8 cm 2 to 3 in on all sides of the module for packing material and strong enough to accommodate the weight of the module 3 Surround the module with 5 to 8 cm 2 to 3 in of packing material to protect the module and prevent it from moving in the carton NEVER use styrene pellets as packaging material They do not adequately cushion the module or prevent the module from moving in the carton They also cause damage by generating static electricity If packing foam is not available the best alternative is S D 240 Air Cap from Sealed Air Corporation Commerce California 90001 Air Cap looks like a plastic sheet with air bubbles Wrap the module with several layers of pink anti static Air Cap to protect the module and prevent the module from moving within the carton Y OD Ww A Introduction Storage and Shipment Seal the carton with strong nylon adhesive tape Mark the carton FRAGILE HANDLE WITH CARE Retain copies of all shipping papers In any correspondence refer to the module by model number and full serial number Introduction Storage and Shipment Getting Started Overview The
8. price is contingent upon return of the defective module to Hewlett Packard The procedure for replacing a faulty Electrical Interface using the assembly exchange program is as follows 1 Order the replacement module HP p n E 1663 69101 through your nearest HP Sales and Service Office Do NOT return the faulty module to Hewlett Packard until you receive the restored exchange module 2 Complete the Exchange F ailure Report which accompanied the restored exchange module 3 Return the faulty module and the Exchange Failure Report to Hewlett P ack ard re use the special exchange assembly carton Remove all accessories attached to the Electrical Interface before it enters the assembly exchange program Accessories are NOT exchangeable 1 9 CAUTION Storage and Shipment The Electrical Interface may be stored or shipped in environments within the fol lowing limits Temperature 40 C to 75 C Humidity 50 to 95 RH from 25 C to 40 C Altitude Up to 4600 m 15 000 ft The module should also be protected from temperature extremes which may cause condensation within the clamshell enclosure Packaging Requirements To prevent damage to the module during transit original shipping or equivalent materials should be used to package the module Containers and material identical to those used in the factory packaging are available through Hewlett Packard offices If the original or equivalent shipping material
9. C size slot Weight 1 6 kg nominal Environmental Operating Conditions Operating 0 to 55 C Temperature Storage Temperature 40 to 75 C Humidity 50 to 95 relative humidity from 25 to 40 C 4 6 Specifications Standards Standards EMC Regulatory Compliance FTZ 1046 1984 CISPR11 EN55011 Electrical Safety Standards IEC 348 1978 CSA C22 2 No 231 Series M89 Communications Standards ANSI T1 105 1991 TR TSY 000253 ITU CCITT Recommendations G 703 Bellcore TA NWT 000253 4 7 Specifications Standards 4 8 Index A amplifier monitor 1 7 anti static precautions 1 8 c C library commands HptEif155InitLib 3 3 HptEif155SetInputGain 3 3 cabling intermodule 2 4 clock recovery 1 7 connections intermodule 2 4 connectors intermodule 1 5 line 1 5 D decoding 1 7 E electrostatic discharge 1 8 equalization 1 7 ESD label 1 8 precautions 1 8 exchange program 1 9 F firmware version number 1 4 front panel LEDs 1 5 l identification label 1 3 identification module 1 4 input amplification 1 7 interconnections 2 4 intermodule connectors 1 5 L abel ESD 1 8 identification 1 3 LEDs front panel 1 5 ine connectors 1 5 M module cabling 2 4 connections 2 4 identification label 1 3 module identification 1 4 monitor amplifier 1 7 P packaging 1 10 R receiver clock 1 7 receiver function 1 7 S service proced
10. O HEWLETT PACKARD Broadband Series Test System SERIAL NUMBERS This manual applies directly to instruments with serial numbers prefixed 3114U For additional important information about serial numbers see Chapter 1 HP E1663A SONET SDH Electrical Interface User s Guide Copyright Notice Warranty Printing history Product support Hewlett Packard Company 1994 All rights reserved The information contained in this document is subject to change without notice HEWLETT PACKARD MAKES NO WARRANTY OF ANY KIND WITH REGARD TO THIS MATERIAL INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE Hewlett Packard shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing performance or use of this material A copy of the specific warranty terms applicable to your product and replacement parts can be obtained from your local Sales and Service Office The printing date will change when a new edition is printed Minor changes may be made at reprint without changing the printing date Manual updates may be issued between editions to correct errors or to document product changes To ensure that you receive these updates or new editions see your Hewlett Packard sales representative for details Manual Name SONET SDH Electrical Line Interface User s Guide Manual Part Number E1663 90003 Product Part Numbe
11. ed data The maximum output amplitude of the CMI coded signal is 0 5 V The con nector has open and short circuit protection and will withstand a maximum input of 5 V INTERMODULE CONNECTORS TRANSMIT CLOCK IN This SMA connector accepts the clock input from the HP E1697A It is an ECL input and is terminated in 50 Q to 2 V dc nominal TRANSMIT DATA IN This SMA connector accepts data in the binary NRZ format from the HP E1697A It is an ECL input and is terminated in 50 Q to 2 V dc nominal RECEIVE CLOCK OUT This SMA connector provides an output for the recovered clock signal for routing to the HP E1697A It is a low impedance output giving nominal ECL levels and requires a 50 Q to 2 V dc termination RECEIVE DATA OUT This SMA connector provides an output for data in the binary NRZ format from the receiver for routing to the HP E 1697A It is a low impedance output giving nominal ECL levels and requires a 50 Q to 2 V dc termination 1 5 Figure 1 1 Note Functional Features The Electrical Interface transmits and receives data at the SONET SDH data rate of 155 52 Mb s Communication with the 155 Mb s Optical Line Interface and the System Under Test is by RF cables fixed to connectors on the front panel Figure 1 1 shows a typical system configuration The System Under Test can be a complete transmission system or individual system components See Connecting to an Optical Line Interface page 2 4
12. following diagrams show you how to set up and operate the line interface For details read the relevant manuals Ensure that the module is correctly installed in the mainframe before installing software Refer to the E1663A Module Installation Guide E 1663 91200 for instructions Once you have correctly installed the module software and online help Connect to an optical SONET SDH Electrical line interface Interface User s Guide Connect to the system under test Start a test session p a ee a and Select protocols and rer artup Guide modules If you are testing higher layers select them now oer N SONET SDH Electrical Interface Users Guide 5 a 10 DORE IE T rel E SONET SDH fl Optical Electrical ll Line L F Interface 4 Start the application Sart Appl ar j Appli 2 2 Getting Started Overview pi ri a 3 155 Mb s Optical Line Configure the Optical gone Interface or 52 Mb s Line Interface and the mn Des pu Optical Line Interface Electrical Interface for the test session Users Guide SONET SDH Electrical Interface User s Guide 6 Test convergence cell and physical layers Refer to the AAL User s Guide to test higher layer protocols at W Broadband Serios Tost Syston n r ive Sessions Protocol Selection cells or 2 Aa al o E
13. int HptEif155lnitLib Initializes the Electrical Interface library Amplifier Gain Setup int HptEif155SetInputGain int device int gain Sets the amplification of the input signal Gain parameters HPT_EIF155_GAIN_ODB no amplification HPT_EIF155_GAIN_20DB set up 20dB amplification 3 3 C Function Reference Electrical Interface Library 3 4 Specifications Specifications Except where otherwise stated the following parameters are warranted perfor mance specifications Parameters described as typical or nominal are supple mental characteristics which provide a useful indication of typical but non warranted performance All specifications are for 0 C to 55 C after a 30 minute warm up 4 2 Specifications Electrical Specifications Electrical Specifications Power Requirements maximum de Volts de Current Dynamic Current 5V 1 1A 110 mA 5 2 V 2 1 A 210 mA 2V 1 3 130 mA 12V 0 35 35 mA 12 V 0 32 A 32 mA Power Dissipation 27 Watts VXIbus Characteristics Device Type Register based Backplane Connectors P1 P2 Module Keying ECL 4 3 Specifications Electrical Specifications Coded Electrical Transmitter Clock 155 52 MHz with 50 10 duty cycle typical Data Serial stream 155 52 Mb s nominal The exact transmit bit rate is derived from the binary clock and data input signals Format CMI Output STS 3 and STM 1 Signa
14. ls Signal Level 0 5 Vak 10 Return Loss gt 15 dB 7 MHz to 234 MHz Impedance Unbalanced 75 Q to ground nominal Protection Open short circuit protected Connector BNC Tx Clock and Data Clock 155 52 MHz with 50 10 duty cycle typical Data Serial stream 155 52 Mb s 20 ppm serial Format Non return to zero NRZ Timing Data set up time gt 3 9 ns Data hold time gt 1 1 ns Impedance 50 Q nominal terminated to 2 V Level ECL Interface DC coupled Connector SMA 4 4 Specifications Electrical Specifications Coded Electrical Receiver Clock Data Format Input Signals Equalization Monitor Mode Return Loss Impedance Protection Connector 155 52 MHz with 50 10 duty cycle typical Serial stream 155 52 Mb s 100 ppm CMI A U 1 S 3 and STM 1 tomatic equalization 20 dB of fixed gain to cater for nominal monitor point loss gt 15 dB 7 MHz to 234 MHz balanced 75 Q to ground nominal aximum applied voltage 5 V short term BNC Rx Clock and Data Clock Format Timing Impedance Level Interface Connector 155 52 MHz with 50 10 duty cycle typical N D D on return to zero NRZ ata set up time gt 600 ps ata hold time gt 3 12 ns 50 Q nominal terminated to 2 V ECL D S C coupled A 4 5 Specifications Mechanical Specifications Mechanical Specifications Physical Size One
15. r E1663A Edition Publication Date Application Version Edition 1 January 1995 A 01 00 Edition 1A Rev 1 July 1997 A 01 00 Call your local HP representative or Tel 1 800 661 3868 In North America Tel 403 430 2770 Outside North America Fax 403 430 2601 Email support idacom hp com Hewlett Packard Company We want to hear from you If you have any IDACOM Telecommunications Operation comments questions or suggestions about our 11120 178 Street documentation you may send them to the Edmonton Alberta following email address Canada ToS 1P2 doc idacom hp com Printed in Australia Contents Introduction Overview 1 3 Module Identification 1 3 Control Panel ataGlance 1 4 Receiver 1 4 Front Panel ataGlance 1 5 Functional Features 1 6 Transmitter 1 6 Receiver 1 7 Monitor Point Access 1 7 Equalization 1 7 Clock Recovery and Decoding 1 7 ESD Precautions 1 8 Service 1 9 Exchange Program 1 9 Storage and Shipment 1 10 Packaging Requirements 1 10 Getting Started Overview 2 2 Connecting to an Optical Line Interface 2 4 Connecting to the System Under Test 2 5 Starting a Test Session 2 6 Login to the HP Broadband Series Test System 2 6 C Function Reference Electrical Interface Library 3 3 Library Initialization 3 3 Amplifier Gain Setup 3 3 Specifications Electrical Specifications 4 3 Mechanical Specifications 4 6 Standards 4 7 Index Contents Figures Figure 1 1 Typical Configuration 1
16. rmat and both the clock and regenerated data signals are passed to the HP E1697A for processing 1 7 CAUTION CAUTION ESD Precautions The Electrical Interface contains components sensitive to electrostatic discharge To prevent component damage carefully follow the handling precautions pre sented below The smallest static voltage most people can feel is about 3500 volts It takes less than one tenth of that about 300 volts to destroy or severely damage static sen sitive circuits Often static damage does not immediately cause a malfunction but significantly reduces the component s life Adhering to the following precautions will reduce the risk of static discharge damage Keep the module in its conductive plastic bag when not installed in the VXI mainframe Save the bag for future storage of the module Before handling the module select a work area where potential static sources are minimized Avoid working in carpeted areas and non conductive chairs Keep body movement to a minimum Hewlett Packard recommends that you use a controlled static workstation e Handle the module by its front panel Avoid touching any components or edge connectors When you are ready to configure the module remove it from its protective bag and lay it on top of the bag while keeping your free hand in contact with the bag While configuring the module keep one hand in contact with the bag This technique maintains your body and the module a
17. t the same static potential e When you install the module keep one hand in contact with the protective bag as you pick up the module with your other hand Then before installing the module make contact with the metal surface of the VXI mainframe with your free hand to bring you the module and the mainframe to the same static potential This also applies whenever you connect disconnect cables on the front panel The connectors on the front panel remain susceptible to ESD damage while the module is installed in the VXI mainframe as indicated by the label 1 8 Note Note Service The performance of the Electrical Interface should be verified annually to ensure that it is operating within the specifications To do this see the HP 75000 Series 90 HP E1663A SONET SDH Electrical Interface User s Manual HP p n E 1663 90001 If it is necessary to return the Electrical Interface to Hewlett Packard for service ensure the following information is sent with the module e Description of the problem include error messages or specific performance data related to the problem Whether the problem is constant or intermittent Name and phone number of technical contact person Return address Model and option number of returned module Full serial number of returned module Exchange Program This program allows you to obtain a fully tested and guaranteed restored exchange module at a reduced price The reduced
18. ures 1 9 shipping details 1 9 1 10 signal amplification 1 7 compensation 1 7 decoding 1 7 equalization 1 7 software version number 1 4 storage details 1 10 T transmitter function 1 6 V version firmware 1 4 software 1 4 Index 1
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