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DLS 400A Operating Manual

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Operating Manual
DLS 400A/H/N/HN
Wireline Simulator
TestW rks
Revision 0
21 September 1999

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Summary of Contents for DLS DLS 400A

  • Page 1 Operating Manual DLS 400A/H/N/HN Wireline Simulator TestW rks Revision 0 21 September 1999...

  • Page 3: Table Of Contents

    DLS 400 Operating Manual Table of Contents 1. INTRODUCTION ....................1 1.1 About the DLS 400 ADSL Wireline Simulator ............ 1 1.2 About this Manual ....................2 2. QUICK START ...................... 3 3. GETTING STARTED ..................4 3.1 Receiving and Unpacking the Unit ............... 4 3.2 Hardware and Software Requirements ..............
  • Page 4 6.9 Flat White Noise Generator ................. 50 6.10 Impulse Generator ..................... 50 6.11 External Noise ....................52 6.12 Powerline Related Impairments ................ 52 6.12.1 Metallic Noise ..................... 53 6.12.2 Longitudinal Noise ..................53 6.12.3 DLS 200 Mode Crosstalk and White Noise ..........55 Page iv...
  • Page 5 DLS 400 Operating Manual 7. REMOTE CONTROL ..................56 7.1 IEEE 488 Interface ....................56 7.1.1 DLS 400 IEEE 488 Address................57 7.1.2 The Service Request (SRQ) Line ..............57 7.1.3 Resetting the DLS 400 .................. 58 7.1.4 Message Terminators ..................58 7.1.5 Example using the IEEE 488 Interface ............
  • Page 6 DLS 400 Operating Manual ..............82 9.2.3.3 Xtalk Generator B – Program 9.2.4 Crosstalk Generator C .................. 82 ................82 9.2.4.1 Xtalk Generator C – Type ................83 9.2.4.2 Xtalk Generator C – Level ..............83 9.2.4.3 Xtalk Generator C – Program 9.2.5 Shaped Noise Generator ................
  • Page 7 DLS 400 Operating Manual 10.1.11 Mid-CSA Loop #0 ................... 110 10.1.12 Mid-CSA Loop #1 ................... 112 10.1.13 Mid-CSA Loop #2 ................... 114 10.1.14 Mid-CSA Loop #3 ................... 116 10.1.15 Mid-CSA Loop #4 ................... 118 10.1.16 Mid-CSA Loop #5 ................... 120 10.1.17 Mid-CSA Loop #6 ...................
  • Page 8 16. SPECIFICATIONS ..................180 16.1 General ......................180 16.2 Simulated loops ....................180 16.2.1 DLS 400 Unit Configurations ..............180 16.2.1 Description ....................182 16.3 Impairments Card .................... 183 16.3.1 White Noise Generator ................183 16.3.2 NEXT Generators A and B ............... 184 16.3.3 NEXT Generator C ...................
  • Page 9 17.2.1 Before Operating the Unit ................192 17.2.2 Operating the Unit ..................192 17.3 Symbols ......................193 APPENDIX A. INTERPRETATION OF LEVEL UNITS ....195 APPENDIX B. DLS 200 MODE ..............198 APPENDIX C. MEASUREMENTS ............... 199 C.1 Measurement of Wireline Simulators ............... 199 C.2 Common Errors ....................
  • Page 10 Figure 3.1 DLS 400 Front Panel ..................5 Figure 3.2 DLS 400 Back Panel ..................6 Figure 3.3 DLS 400 Internal Connection Paths ............. 8 Figure 4.1 Initial Screen ....................14 Figure 4.2 Main Control Screen ................... 15 Figure 4.3 System Configuration Screen ..............
  • Page 11 DLS 400 Operating Manual Figure 11.15 Model B ....................169 Figure 11.16 T1 NEXT (Original DLS 400A shape) ............. 169 Figure 11.17 International AMI ..................170 Figure 11.18 T1. 413 II T1 (AMI) NEXT/ITU-T NA T1 (AMI) NEXT/ HDSL2 T1 (AMI) NEXT ................170 Figure 11.19 T1.413 II EC ADSL downstream NEXT ..........

  • Page 13: Introduction

    With the introduction of the DLS 100 in 1985 we sold the world’s first truly wide- band wireline simulator to successfully simulate attenuation, characteristic impedance and delay.

  • Page 14: About This Manual

    (NIM) using Windows 95-compatible software. New impairments can be added simply by reading them as a new file into a DLS 400 with a NIM card or a NSA 400. The DLS 400 is controlled by software running on any Windows® 95 computer. It includes both IEEE 488 and RS–232 interfaces for easy integration into a larger test sys-...

  • Page 15: Quick Start

    QUICK START QUICK START This section is for experienced users. If you are using the DLS 400 for the first time, please read chapter 3, “Getting Started”. Connect the power cord to the DLS 400 and switch the power on.

  • Page 16: Getting Started

    GETTING STARTED GETTING STARTED Receiving and Unpacking the Unit The DLS 400 has been shipped in a reinforced shipping container. Retain this container for any future shipments. Check that you have received all of the following items and report any discrepancies within 30 days: •...

  • Page 17: Dls 400 Front And Rear Panels

    GETTING STARTED DLS 400 Front and Rear Panels Figure 3.1 DLS 400 Front Panel 1) Side A bantam jack 2) Side A balanced CF connector 3) Side B bantam jack 4) Side B balanced CF connector 5) Remote LED 6) Power LED...

  • Page 18: Digital Connections

    6) Side A External Noise input (BNC connector) 7) RS–232 (DCE) serial connector 8) IEEE 488 connector Digital Connections The DLS 400 works with both IEEE 488 and RS–232 interfaces. Depending on your choice of interface, do one of the following: Page 6...

  • Page 19: Analog Connections

    Connect one end of an IEEE 488 cable to the IEEE 488 connector located on the back panel of the DLS 400. Connect the other end of the IEEE 488 cable to the IEEE 488 interface card in the computer.

  • Page 20: Adapter

    LED will turn blinking red if it fails its self-test, or yellow if it detects an inter- nal error. The REMOTE LED turns off after a power-up and a reset. When the DLS 400 receives the first remote message, the REMOTE LED will then turn green. If the DLS 400 detects an error in the message, the REMOTE LED will then turn red and stay red until the error flags are cleared (see the command *ESR? in chapter 8 for more details).

  • Page 21: Connecting Power To The Dls 400

    GETTING STARTED Connecting Power to the DLS 400 Connect the DLS 400 to an AC power supply via the power cable at the back of the unit. The unit can work with any voltage between 100 and 240 V ±10% and a frequency of 50 or 60 Hz.

  • Page 22: Installing National Instruments Gpib Software (Ieee 488 Operation Only)

    If you already have the National Instruments card installed and working, or are using only a RS–232 interface, proceed to section 4.1 for information on installing the DLS&NSA software. Otherwise, follow the instructions below on installing the NI card and drivers.
  • Page 23 GETTING STARTED From the Start Menu, select “Settings” >> “Control Panel” >> “System” >> “NI GPIB Interface”. Select the GPIB–PCII under Device Manager by clicking on the icon. Click on “GPIB Settings” and click on the “Advanced” button. Uncheck the “Automatic Serial Polling” check-box. Click “OK”. Click on “Resources”...

  • Page 24: How To Check If The Ni Card Is Installed Properly

    GETTING STARTED 14. Install the GPIB–PCII/IIA card in your computer. 15. Restart the computer. 3.10.3 How to Check if the NI card is installed properly Check that the PC–II card is installed correctly by running the hardware diagnostic pro- gram. From the Windows 95 Start menu, select “Programs” >> “NI–488.2M Software for Windows”...

  • Page 25: Dls 400 Software

    If you are using an RS–232 interface, the NI card and drivers are not required. Initial Screen Launching the DLS 400 Control Software will bring up the initial screen of the DLS 400 software. This screen allows you to choose the system configuration corresponding to your unit (DLS 400A, DLS 400H, etc.) and the preferred communications mode (RS–232...

  • Page 26: Changing Communications Mode

    DLS 400 SOFTWARE Figure 4.1 Initial Screen There is also an Offline communications mode. This mode allows you to explore the sys- tem software. It is also used to set the IEEE 488 address and the configuration of impair- ment cards of your system (see section 4.4).

  • Page 27: Unit Configuration

    DLS 400 SOFTWARE Unit Configuration To set the software configuration of the IEEE 488 address and the impairments cards for your unit, go into Offline mode and from the main control screen select “Unit Configura- tion” from the Options menu.

  • Page 28: Main Control Screen

    DLS 400 SOFTWARE Set the number of the IEEE 488 address to match the DIP switch settings on the DLS 400 rear panel (see sections 3.3 and 7.1.1 for details). Check the box(es) (A and/or B) corre- sponding to the impairments card(s) installed in your unit, if any.

  • Page 29: Loading And Saving Settings

    DLS 400 SOFTWARE in the main control screen are “DLS 200 Loops” (see Appendix B for details) and “Reverse Loop” (see section 5.3.5). 4.5.1 Loading and Saving Settings The File menu provides options for loading and saving impairments, wireline settings, and complete unit configurations (i.e.

  • Page 30: Loading Standards Impairments Settings

    DLS 400 SOFTWARE 4.5.1.1 Loading Standards Impairments Settings The File menu item “Load Impairments from Standards” allows you to load all the impair- ments parameters required for testing to a particular standard, rather than having to enter each parameter individually. Note that after choosing one of the impairments combina-...

  • Page 31: Impairments Control Panel

    DLS 400 SOFTWARE • ETSI ADSL Rate • ETSI HDSL Rate • ETSI Basic Rate • FTZ Basic Rate Note: The impairments parameters for other testing standards, such as ANSI HDSL2 Rate and ITU–T Splitterless ADSL Rate, can be loaded manually.

  • Page 32: Editing Impairments Screen

    DLS 400 SOFTWARE Name Description Side A/Side B • Check the “On” box to apply impairments to the line • Click on the “Edit” button to set the impairments • Click on the “Impulses” button to start the computer-con- trolled impulse generation.

  • Page 33: Figure 4.7 Editing Impairments Screen

    DLS 400 SOFTWARE Figure 4.7 Editing Impairments Screen The various settings are detailed in the table on the following page. Page 21...
  • Page 34 Set the width of 3-level, bipolar and unipolar impulses. DLS 200 Mode Crosstalk Select this mode in order to achieve results comparable to and White Noise those obtained with a DLS 200 unit. See section 6.12.3 for more details. Page 22...

  • Page 35: Edit Longitudinal Voltage (Common Mode Impairments)

    DLS 400 SOFTWARE Name Description Calibration Impedance Shows the impedance used to calculate dBm power levels. Note that when this value is changed, the absolute power of the signal being injected is not changed, but rather its dBm reading is changed.

  • Page 36: Impulse Control

    Operating Two or More Units from the 400 Series Concurrently Two or more units from the 400 series (DLS 400A, DLS 400E, and NSA 400) can be operated at the same time over the IEEE bus. However, each unit must be launched by its own session of the control software and each unit must have a unique IEEE address.

  • Page 37: System Description

    ADSL and several others can be created by the user, includ- ing bridge tap settings on either or both sides. In addition to the loops, the DLS 400 also provides optional impairments generators which can be used for testing, ISDN Basic Rate, HDSL rate or ADSL rate transmission equipment to European or North American stand- ards.

  • Page 38: Dls 400 Unit Loopset Configurations

    SYSTEM DESCRIPTION DLS 400 Unit Loopset Configurations Depending upon the configuration chosen, the DLS 400 can simulate up to 29 different loops defined in various standards, plus 4 variable loops. DLS 400A BYPASS CSA #0 MID-CSA #0 ANSI #2 CSA #1...
  • Page 39 SYSTEM DESCRIPTION DLS 400N BYPASS CSA #4 ANSI #1 EIA #1 CSA #6 ANSI #2 EIA #2 VARIABLE 24 AWG CSA #7 ANSI #5 EIA #3 VAR 24 AWG+TAP CSA #8 ANSI #7 EIA #4 VARIABLE 26 AWG MID-CSA #6...

  • Page 40: Loop Descriptions

    SYSTEM DESCRIPTION Loop Descriptions 5.3.1 CSA Loops BYPASS/CSA #0 6 00 ft/26 5 .9 kft/2 6 1 .8 kft/2 6 CSA #1 7 00 ft/26 6 50 ft/26 3 .0 kft/2 6 7 00 ft/24 3 50 ft/24 3 .0 kft/2 6 CSA #2 5 0 ft/2 4 5 0 ft/2 4...
  • Page 41 SYSTEM DESCRIPTION 4 00 ft/26 8 00 ft/26 5 50 ft/26 6 .25 kft/26 8 00 ft/26 CSA #4 1 .2 kft/2 6 5 .8 kft/2 6 1 50 ft/ 1 .2 kft/2 6 3 00 ft/ 3 00 ft/ CSA #5 9 .0 kft/2 6 CSA #6...
  • Page 42 SYSTEM DESCRIPTION 5 00 ft/24 9 .0 kft/2 6 1 .0 kft/2 4 EXT–CSA #9 7 .5 kft/2 6 4 .5 kft/2 4 5 00 ft/26 EXT–CSA #10 4 .0 kft/2 6 6 .0 kft/2 6 MID–CSA #0 1 00 ft/26 1 00 ft/26 2 .4 kft/2 6 4 .1 kft/2 4...

  • Page 43: Ansi Loops

    SYSTEM DESCRIPTION 8 .0 kft/2 4 MID–CSA #3 4 00 ft/24 4 00 ft/24 4 00 ft/24 4 .0 kft/2 6 1 .1 kft/2 6 MID–CSA #4 5 00 ft/26 4 00 ft/ 2 .4 kft/ 1 00 ft/ 1 .5 kft/ 5 00 ft/ 9 00 ft/ MID–CSA #5...
  • Page 44 SYSTEM DESCRIPTION 1 .5 kft/2 4 1 3.5 kft/26 3 .0 kft/2 4 ANSI #2 5 00 ft/24 1 .0 kft/2 4 5 00 ft/24 1 .0 kft/2 2 1 .5 kft/2 4 7 .5 kft/2 6 6 .0 kft/2 4 1 .5 kft/2 4 1 .0 kft/2 2 ANSI #3...
  • Page 45 SYSTEM DESCRIPTION 5 00 ft/22 5 00 ft/24 4 .5 kft/2 6 1 2.0 kft/24 1 .0 kft/2 4 ANSI #6 1 3.5 kft/26 ANSI #7 1 .0 kft/2 4 9 .0 kft/2 4 1 .0 kft/2 2 6 .0 kft/2 6 ANSI #8 1 .5 kft/2 6 1 .5 kft/2 6...

  • Page 46: Eia Loops

    SYSTEM DESCRIPTION 7 .5 kft/2 6 4 .5 kft/2 4 1 .5 kft/2 6 ANSI #12 1 .5 kft/2 6 1 .5 kft/2 6 9 .0 kft/2 6 2 .0 kft/2 4 5 00 ft/24 5 00 ft/24 ANSI #13 1 2.0 kft/26 ANSI #15 11 .0 kft/2 6...

  • Page 47: Variable Loops

    SYSTEM DESCRIPTION 4 .0 kft/2 6 3 .0 kft/2 4 EIA #2 1 .5 kft/2 6 7 .0 kft/2 6 EIA #3 1 2.0 kft/26 EIA #4 1 .5 kft/2 6 9 .0 kft/2 6 6 .0 kft/2 4 EIA #5 5.3.4 Variable Loops −...

  • Page 48: Reversing Loops

    All these loops can be reversed under software control. The effect of doing this is to reverse the connections to terminals A and B within the DLS 400, but leave the make up of the loop unchanged. For example, if you set CSA loop 2, with impairments on slot A,...
  • Page 49 SYSTEM DESCRIPTION If you reverse the loop, the configuration of the loop will be as follows: 6 50 ft/26 7 00 ft/26 3 .0 kft/2 6 3 50 ft/24 7 00 ft/24 3 .0 kft/2 6 Im p airm e n ts G en e rato r Here the loop has changed, but the position of the impairments generator has not.

  • Page 50: Adsl Noise Generator Description

    ADSL NOISE GENERATOR DESCRIPTION General The DLS 400 system can contain up to 2 noise cards. Each is used to inject noise at one end of the wireline. A card in slot A injects differential mode impairments at the input/out- put connector A of the DLS 400, and the card in slot B injects noise at connector B.

  • Page 51: Basic Rate Testing, Ansi T1.E1 T1.601 Standard

    ADSL NOISE GENERATOR DESCRIPTION 6.2.1 Basic Rate Testing, ANSI T1.E1 T1.601 standard Impairment Description Longitudinal Noise Up to 60 volts common mode injection at side B, 60 Hz (option 50 Hz). Power related Metallic Noise Odd harmonics of the fundamental up to 11 harmonic.

  • Page 52: Adsl Rate Testing, Ansi T1.413, Issue I And Ii

    ADSL NOISE GENERATOR DESCRIPTION 6.2.4 ADSL Rate Testing, ANSI T1.413, Issue I and II Impairment Description Impulse Noise Both c1 and c2 types of impulses, as specified. Crosstalk Noise Different types of crosstalk noise, which can be injected over varying levels and in combination. There are 3 different and independent crosstalk generators.

  • Page 53: Hdsl Rate Testing, Etsi Ts 101 135 Hdsl Standard

    ADSL NOISE GENERATOR DESCRIPTION 6.2.7 HDSL Rate Testing, ETSI TS 101 135 HDSL Standard Impairment Description Shaped Noise Multiple tones at 320 Hz and harmonics up to 1.5 MHz, amplitude and phase related as specified. Impulse Test The Cook pulse, of selectable rate and level. Longitudinal Noise Common mode at 50 Hz (60 Hz option) at up to 20 Volts...

  • Page 54: Figure 6.2 Loading All Impairments

    ADSL NOISE GENERATOR DESCRIPTION Figure 6.2 Loading all impairments Figure 6.3 Impairments combinations Page 42...
  • Page 55 ADSL NOISE GENERATOR DESCRIPTION One or all of the possible impairments can be set at varying levels, and in any combina- tion. This very powerful mix of impairments can be used to provide a rich variety of test conditions. Name Type Level Range Description...
  • Page 56 ADSL NOISE GENERATOR DESCRIPTION Name Type Level Range Description HDSL2 upstream Crosstalk –30 to –80 dBm For spectrum, see Figure 11.11 NEXT (H2TUR) T1 (AMI) NEXT Crosstalk –18 to –68 dBm For spectrum, see Figure 11.18 EC ADSL downstream Crosstalk –17 to –67 dBm For spectrum, see Figure 11.19 NEXT...
  • Page 57 ADSL NOISE GENERATOR DESCRIPTION Name Type Level Range Description Rate Width Cook Pulse Impulse –20 to +6 dB Used for HDSL 0–100 pps or rate testing. See single shot Figure 6.5. ADSL #1 (c1) Impulse 0–100 mV Used for ADSL 0–100 pps or rate testing.

  • Page 58: Impairment Card Organization

    ADSL NOISE GENERATOR DESCRIPTION Frequency [Hz] Level [dBm] –47 –49 –59 –65 –70 –74 Cook pulse levels are relative to the reference level of 318 mV p–p, when using a 135 Ω system. The level range given for shaped noise is obtained using a 135 Ω system. Impairment Card Organization The Impairments card contains several generators that can simulate various impairments.

  • Page 59: Output Stage

    ADSL NOISE GENERATOR DESCRIPTION Ex te rnal Input (A ttenuated by 2 0 dB ) Low -lev el s in ew av e Sha pe d N ois e s et to a n odd pow e r Low Frequency C ros sta lk line fre quenc y.

  • Page 60: Crosstalk Generators A And B

    ADSL NOISE GENERATOR DESCRIPTION Crosstalk Generators A and B The impairments card contains two independent low frequency crosstalk generators able to produce a variety of shaped white noises up to 600 kHz. Generator B can produce all of the signals that generator A can produce, as well as some that generator A cannot produce. In addition, generator B is more versatile than generator A.

  • Page 61: Crosstalk Generator C

    ADSL NOISE GENERATOR DESCRIPTION The difference in levels due to different numbers of interferers is: Level difference [dB] Level difference [dB] Number of disturbers relative to 10–disturber relative to 49–disturber +4.1 +0.0 +2.3 –1.8 +1.8 –2.3 –4.1 –2.4 –6.5 –6.0 –10.1 Crosstalk Generator C The (high frequency) crosstalk generator C produces noise with frequency components up...

  • Page 62: Shaped Noise Generator

    ADSL NOISE GENERATOR DESCRIPTION Shaped Noise Generator The shaped noise generator is a RAM-based generator which produces a variety of dis- crete tones: • ETSI Basic Rate • ETSI HDSL Rate • to FTZ TR.220 recommendations It is also used to generate the 10 tones which are needed for ADSL Model A noise. Flat White Noise Generator The flat noise generator injects a flat white noise signal, with a –3 dB point located at 2 MHz.

  • Page 63: Figure 6.5 Cook Pulse

    ADSL NOISE GENERATOR DESCRIPTION Figure 6.5 Cook Pulse Figure 6.6 ADSL Impulse c1 Page 51...

  • Page 64: External Noise

    ADSL NOISE GENERATOR DESCRIPTION Figure 6.7 ADSL Impulse c2 6.11 External Noise External noise may be injected via the BNC connector. Be aware that the level of noise applied to the line will be reduced by approximately 30 dB. Also, the source output must be turned on for the external noise to be applied.

  • Page 65: Metallic Noise

    ADSL NOISE GENERATOR DESCRIPTION 6.12.1 Metallic Noise Powerline metallic noise is a pair of low-level sine waves which are injected in differential mode. The frequency of the sinewaves can be set to any odd harmonic, from the funda- mental up to the 11 odd harmonic (550 or 660 Hz).

  • Page 66: Figure 6.8 Ansi Longitudinal Load Configuration

    ADSL NOISE GENERATOR DESCRIPTION Figure 6.8 ANSI Longitudinal Load Configuration If both loads are installed, equal and opposite-phase voltages appear at the end of the lines. They are half the voltage that appears at one end of the line if only one load is in place. Figure 6.9 ETSI Longitudinal Load Configuration Page 54...

  • Page 67: Dls 200 Mode Crosstalk And White Noise

    Some customers expressed a desire for the noises generated by the DLS 400 to produce exactly the same effects as noises that come from a DLS 200H. To do this we introduced a DLS 200 compatible noise, in which the base noise is modified from the original DLS 400 base noise.

  • Page 68: Remote Control

    REMOTE CONTROL REMOTE CONTROL The DLS 400 is controlled via the IEEE 488 (also known as the GPIB bus), or the RS–232 (serial) interface, allowing the integration of the DLS 400 into a larger test system. The DLS 400 remote control is designed with several standards in mind: •...

  • Page 69: Dls 400 Ieee 488 Address

    7.1.1 DLS 400 IEEE 488 Address. The DLS 400 can use any valid IEEE 488 address (from 0 to 30). You can change the address by using the DIP switch on the back of the unit. The following figure shows the default switch setting (address 14):...

  • Page 70: Resetting The Dls 400

    NOTE: The Factory default is to clear all enable registers on power up. See the descrip- tions of the *PSC, *ESE and *SRE commands in chapter 9 for more details. We recommend that you set the DLS 400 to raise the SRQ line when there is a message available and when there is an error.

  • Page 71: Example Using The Ieee 488 Interface

    REMOTE CONTROL 7.1.5 Example using the IEEE 488 Interface To select the ANSI #3 loop, do the following: 1) transmit “:SET:CHAN:LOOP ANSI_#3” 2) check that the REMOTE LED is green To send and receive messages with error checking follow these steps: 1) set all relevant enable bits (only done once) 2) send the message 3) wait for SRQ...

  • Page 72: Serial Interface

    The DLS 400 stops transmitting data when the RTS line is low, and restarts when the RTS line is high. The DLS 400 lowers the CTS and the DSR lines when it cannot accept data, and raises them when it can. Note that the RTS line is not the usual “Request To Send” as defined by the RS–232 standard.

  • Page 73: Example Using The Rs-232 Interface

    5) read the answer if not 0, see section 8.1 for description of the error(s) Data formats The DLS 400 adheres to the IEEE 488.2 principle of Forgiving Listening and Precise Talking. The data formats supported by the DLS 400 are: Talking: a) <NR1>...

  • Page 74: Command Syntax

    <NRf> is the Flexible Numeric Representation defined in the IEEE.2 standard which can represent just about any number. The DLS 400 can accept data in the <NRf> format, which means that numbers can be made of a combination of digits, signs, decimal point, exponent, multiplier, unit and spaces.
  • Page 75 *ESE?;*SRE? :SET:CHAN:LOOP? When a command does not begin with a colon, the DLS 400 assumes that the command is at the same level as the previous command. For example, to set a variable loop, one does NOT need to specify “:SET:CHANNEL” each time, such as in: :SET:CHAN:LOOP VARIABLE_26_AWG;TAP_A 500;LINE 10k;TAP_B...

  • Page 76: Remote Control: Common Command Set

    IEE E R S 232C REMOTE CONTROL: COMMON COMMAND SET REMOTE CONTROL: COMMON COMMAND SET As specified in the IEEE 488.2 standard, a number of common commands are required to set up and control of the standard functions of remote-controlled devices. They can be used with both the IEEE 488 and the RS–232 interfaces.
  • Page 77 Function: Indicates to the controller when the current operation is complete. This command will cause the DLS 400 to set bit 0 in the Event Status Regis- ter (ESR) when all pending operations are completed. The bit is read with the *ESR? command, which also clear the bit. Communication can proceed as normal after this command, but be prepared to receive SRQ at any time.
  • Page 78 Function: Indicates when the current operation is complete. This will cause the DLS 400 to put an ASCII 1 (decimal 49, hex 31) in the output queue when the current operation is complete. Communication can proceed as normal after this command, but be prepared to receive the “1” at any time.
  • Page 79 IEE E R S 232C REMOTE CONTROL: COMMON COMMAND SET Function: Sets the Service Request Enable Register (SRER). An integer value indicates which service is enabled, with the following bit map: Bit: 7654 3210 not used, should always be 0 1 = enable Message Available bit (MAV) 1 = enable Event Status bit (ESB) don't care, MSS is always enabled...
  • Page 80 IEE E R S 232C REMOTE CONTROL: COMMON COMMAND SET Bit: 7654 3210 not used, should always be 0 MAV: Message Available bit ESB: Event Status bit Master Summary Status bit not used, should always be 0 Bits 7 to 0 have values of 128, 64, 32, 16, 8, 4, 2 and 1, respectively. For example, if bits 4 and 5 are set then the integer value is 48 (16+32).

  • Page 81: Status Reporting

    Type: Synchronization command Function: Used to delay execution of commands. The DLS 400 will ensure that all commands received before “*WAI” are completed before processing any new commands. This means that all further communication with the DLS 400 will be frozen until all pending operations are completed.

  • Page 82: Event Status Register (Esr)

    Event Status Register (ESR) The Event Status Register monitors events within the system and reports on those enabled. It records transitory events as well. The DLS 400 implements only the IEEE 488.2 Stand- ard Event Status Register (ESR). It is defined as: bit 0 Operation Complete.

  • Page 83: Dls 400 Synchronization

    Not used, so this bit is always 0. bit 7 Power on. This bit is set when the DLS 400 is turn on. Sending *ESR? clears the bit and stays clear until the power is turned on again.
  • Page 84 Make sure that all the required enable bits are set. When using *OPC or *OPC?, the program controlling the DLS 400 can determine when the operation is completed by waiting for SRQ, or by reading the status byte with the serial poll or with *STB? (if corresponding bits are enabled).

  • Page 85: Remote Control: Device Dependent Commands

    Each section of the command may be sent in the full or the truncated form (indicated in upper case). The command itself may be sent in upper or lower case form. The DLS 400 will round any number to the nearest number permitted by the resolution of the parameter.

  • Page 86: Setting:channel:loop

    REMOTE CONTROL: DEVICE DEPENDENT COMMANDS 9.1.1 :SETting:CHANnel:LOOP <Loop Name> This command selects which loop the DLS 400 will simulate, depending on the configura- tion purchased. <LOOP Name> can be any of the loops available to your specific unit, as follows:...
  • Page 87 REMOTE CONTROL: DEVICE DEPENDENT COMMANDS DLS 400H BYPASS CSA_#1 CSA_#2 VARIABLE_24_AWG CSA_#3 VAR_24_AWG+TAP CSA_#4 VARIABLE_26_AWG CSA_#5 VAR_26_AWG+TAP CSA_#6 CSA_#7 CSA_#8 EXT-CSA_#9 EXT-CSA_#10 DLS 400N BYPASS CSA_#4 ANSI_#1 EIA_#1 CSA_#6 ANSI_#2 EIA_#2 VARIABLE_24_AWG CSA_#7 ANSI_#5 EIA_#3 VAR_24_AWG+TAP CSA_#8 ANSI_#7 EIA_#4 VARIABLE_26_AWG...
  • Page 88 EXT-CSA_#10 MID-CSA_#6 In addition, any CSA, EXT-CSA and ANSI loop except CSA loop 0 have a DLS 200 com- patible mode. This is chosen by adding D2 immediately after the loop number. For example, to select ANSI loop number 2, send:...

  • Page 89: Setting:channel:tap_A

    The units of the length are optional, but they must be “ft” if present. For more details on the numeric format supported by the DLS 400, see section 7.3. To query the length currently simulated by the DLS 400 send: :SET:CHAN:TAP_A? The command will return an integer number ranging from 0 to 1500 followed by the units.

  • Page 90: Setting:channel:tap_B

    The units of the length are optional, but they must be “ft” if present. For more details on the numeric format supported by the DLS 400, see section 7.3. To query the length currently simulated by the DLS 400 send: :SET:CHAN:LINE? The command will return an integer number current length followed by the units.

  • Page 91: Setting:channel:direction Forward|Reverse

    REMOTE CONTROL: DEVICE DEPENDENT COMMANDS The command will return an integer number ranging from 0 to 1500 followed by the units. For example, if the length is 1.5 kft, the returned message will be: 1500 FT 9.1.5 :SETting:CHANnel:DIRection FORward|REVerse This command selects the direction of the signal through the wireline. For example, to select the reverse direction, send: :SET:CHAN:DIR REVERSE To query the current direction of the signal in the wireline, send:...

  • Page 92: Device Dependent Command Set For Impairments

    Device Dependent Command Set for Impairments 9.2.1 Impairments Commands Summary When setting impairments, the DLS 400 uses the following general format: :Source?:AAAA:BBBB CCCC All commands should refer to a specific slot. Use “:sourceA” to set parameters on the noise card located in slot A, and “:sourceB” for the other slot. The rest of the command can be summarized like this: :sourceA :xtalkA:type <...

  • Page 93: Crosstalk Generator A

    REMOTE CONTROL: DEVICE DEPENDENT COMMANDS :harmonic2 < choice > :offset <numeric value> [dB] :longitudinal :level <numeric value> [Vrms] :Noise:Distribution <D4Mode|D2Mode> :load1 <boolean> :load2 <boolean> :output <boolean> :quiet 9.2.2 Crosstalk Generator A 9.2.2.1 XTalk Generator A – Type :source?:xtalkA :type <choice> Range: OFF T1.601 DSLNEXT...

  • Page 94: Crosstalk Generator B

    REMOTE CONTROL: DEVICE DEPENDENT COMMANDS 9.2.3 Crosstalk Generator B 9.2.3.1 Xtalk Generator B – Type :source?:xtalkB:type <numeric value> Range: OFF T1.601 DSLNEXT HDSL HDSL+ADSL ADSLNEXT 9.2.3.2 Xtalk Generator B – Level :source?:xtalkB :level <numeric value> [dBm] Range: –75.0 to –30.0 dBm in 0.1 dB steps 9.2.3.3 Xtalk Generator B –...

  • Page 95: Xtalk Generator C - Level

    REMOTE CONTROL: DEVICE DEPENDENT COMMANDS 9.2.4.2 Xtalk Generator C – Level :source?:xtalkC :level <numeric value> [dBm] Range: –85.0 to –35.0 dBm in 0.1 dB steps When selecting ADSLA in the high frequency crosstalk generator, make sure to select also the 10-tone type for the shaped noise generator, since ADSL Model A noise is made up of both Crosstalk noise and Shaped noise.

  • Page 96: Shaped Noise Generator - Level

    REMOTE CONTROL: DEVICE DEPENDENT COMMANDS 9.2.5.2 Shaped Noise Generator – Level :source?:shaped :level <numeric value> [µV/√Hz] Range: 3.2 to 100.0 in 0.1 µV/ √Hz steps :source?:shaped :level <numeric value> [dBm/Hz] Range: –101.3 to –71.3 in 0.1 dB/ Hz steps Level value could be issued using any of the three units (µV/√Hz or dBm/Hz or dBm). Level is typically in µV/√Hz when type selected is either BASIC_RATE, HDSL or FTZ.

  • Page 97: Impulses

    REMOTE CONTROL: DEVICE DEPENDENT COMMANDS 9.2.7 Impulses 9.2.7.1 Impulses – Type :source?:impulse :type <choice> Range: off 3-level bipolar unipolar+ unipolar– cook adsl–c1 adsl–c2 9.2.7.2 Impulses – Width Range: 20 to 120 µs in 1µs steps. :source?:impulse :width <numeric value> [µs] Only applies to 3-level, bipolar and unipolar impulses...

  • Page 98: Impulses - Single Shot

    REMOTE CONTROL: DEVICE DEPENDENT COMMANDS 9.2.7.5 Impulses – Single Shot :source?:impulse :trigger Range: none The single shot command generates a single impulse as soon as the command is received. 9.2.8 Powerline Related Impairments Frequency :source?: pwrline :freq <choice> [Hz] Choice: 50, 60 Hz 9.2.8.1 Metallic Noise Sine Wave Generators 9.2.8.1.1 Harmonic #1 Frequency...

  • Page 99: Longitudinal Noise Triangle Wave Generator

    REMOTE CONTROL: DEVICE DEPENDENT COMMANDS 9.2.8.3 Longitudinal Noise Triangle Wave Generator :source?:pwrline :longitudinal :level<numeric value> [Vrms] Range: 0 to 60 Vrms in 1V steps when powerline frequency is 60 Hz. 0 to 50 Vrms in 1V steps when powerline frequency is 50 Hz. Associated with the longitudinal noise, the longitudinal loads should also be controlled.

  • Page 100: Output Stage

    REMOTE CONTROL: DEVICE DEPENDENT COMMANDS :width 50 µs :level 0.0 mV :rate 0 pps :shaped :type OFF :level 3.2 µV/√Hz :xtalkA :type OFF :level –75.0 dBm :xtalkB :type OFF :level –75.0 dBm :xtalkC :type OFF :level –85.0 dBm :white :level –140.0 dBm/Hz :state off :load1 OFF :load2 OFF...

  • Page 101: Characteristics Of Fixed Loops

    The design goal was excellent sim- ulation up to 1.5 MHz, which has been achieved. In fact, the DLS 400 is designed for test- ing beyond this frequency, up to and including 2 MHz (and higher in some configurations, although the attenuation at frequencies beyond 2 MHz precludes any practical applica- tions).

  • Page 102: Csa Loops

    10.1 CSA Loops 10.1.1 CSA Loop #1 Attenuation Calculated Attenuation of Ideal Cable Attenuation Measured on DLS 400 1000 1200 1400 1600 Frequency, kHz Impedance The bold line shows the calculated value for ideal cables;...
  • Page 103 CHARACTERISTICS OF FIXED LOOPS Impedance Graphs Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At CO Side Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At Customer Side Page 91...

  • Page 104: Csa Loop #2

    CHARACTERISTICS OF FIXED LOOPS 10.1.2 CSA Loop #2 Attenuation Calculated Attenuation of Ideal Cable Attenuation Measured on DLS 400 1000 1200 1400 1600 Frequency, kHz Impedance The bold line shows the calculated value for ideal cables; the other shows values measured on a DLS 400.
  • Page 105 CHARACTERISTICS OF FIXED LOOPS Impedance Graphs Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At CO Side Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At Customer Side Page 93...

  • Page 106: Csa Loop #3

    CHARACTERISTICS OF FIXED LOOPS 10.1.3 CSA Loop #3 Attenuation Calculated Attenuation of Ideal Cable Attenuation Measured on DLS 400 1000 1200 1400 1600 Frequency, kHz Impedance The bold line shows the calculated value for ideal cables; the other shows values measured on a DLS 400.
  • Page 107 CHARACTERISTICS OF FIXED LOOPS Impedance Graphs Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At CO Side Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At Customer Side Page 95...

  • Page 108: Csa Loop #4

    CHARACTERISTICS OF FIXED LOOPS 10.1.4 CSA Loop #4 Attenuation Calculated Attenuation of Ideal Cable Attenuation Measured on DLS 400 1000 1200 1400 1600 Frequency, kHz Impedance The bold line shows the calculated value for ideal cables; the other shows values measured on a DLS 400.
  • Page 109 CHARACTERISTICS OF FIXED LOOPS Impedance Graphs Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At CO Side Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At Customer Side Page 97...

  • Page 110: Csa Loop #5

    CHARACTERISTICS OF FIXED LOOPS 10.1.5 CSA Loop #5 Attenuation Calculated Attenuation of Ideal Cable Attenuation Measured on DLS 400 1000 1200 1400 1600 Frequency, kHz Impedance The bold line shows the calculated value for ideal cables; the other shows values measured on a DLS 400.
  • Page 111 CHARACTERISTICS OF FIXED LOOPS Impedance Graphs Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At CO Side Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At Customer Side Page 99...

  • Page 112: Csa Loop #6

    CHARACTERISTICS OF FIXED LOOPS 10.1.6 CSA Loop #6 Attenuation Calculated Attenuation of Ideal Cable Attenuation Measured on DLS 400 1000 1200 1400 1600 Frequency, kHz Impedance The bold line shows the calculated value for ideal cables; the other shows values measured on a DLS 400.
  • Page 113 CHARACTERISTICS OF FIXED LOOPS Impedance Graphs Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At CO Side Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At Customer Side Page 101...

  • Page 114: Csa Loop #7

    CHARACTERISTICS OF FIXED LOOPS 10.1.7 CSA Loop #7 Attenuation Calculated Attenuation of Ideal Cable Attenuation Measured on DLS 400 1000 1200 1400 1600 Frequency, kHz Impedance The bold line shows the calculated value for ideal cables; the other shows values measured on a DLS 400.
  • Page 115 CHARACTERISTICS OF FIXED LOOPS Impedance Graphs Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At CO Side Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At Customer Side Page 103...

  • Page 116: Csa Loop #8

    CHARACTERISTICS OF FIXED LOOPS 10.1.8 CSA Loop #8 Attenuation Calculated Attenuation of Ideal Cable Attenuation Measured on DLS 400 1000 1200 1400 1600 Frequency, kHz Impedance The bold line shows the calculated value for ideal cables; the other shows values measured on a DLS 400.
  • Page 117 CHARACTERISTICS OF FIXED LOOPS Impedance Graphs Real Imaginary Real -100 -150 Imaginary -200 1000 1200 1400 1600 Frequency, kHz At CO Side Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At Customer Side Page 105...

  • Page 118: Extended-Csa Loop #9

    CHARACTERISTICS OF FIXED LOOPS 10.1.9 Extended-CSA Loop #9 Attenuation Calculated Attenuation of Ideal Cable Attenuation Measured on DLS 400 1000 1200 1400 1600 Frequency, kHz Impedance The bold line shows the calculated value for ideal cables; the other shows values measured on a DLS 400.
  • Page 119 CHARACTERISTICS OF FIXED LOOPS Impedance Graphs Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At CO Side Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At Customer Side Page 107...

  • Page 120: Extended-Csa Loop #10

    CHARACTERISTICS OF FIXED LOOPS 10.1.10 Extended-CSA Loop #10 Attenuation Calculated Attenuation of Ideal Cable Attenuation Measured on DLS 400 1000 1200 1400 1600 Frequency, kHz Impedance The bold line shows the calculated value for ideal cables; the other shows values measured on a DLS 400.
  • Page 121 CHARACTERISTICS OF FIXED LOOPS Impedance Graphs Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At CO Side Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At Customer Side Page 109...

  • Page 122: Mid-Csa Loop #0

    CHARACTERISTICS OF FIXED LOOPS 10.1.11 Mid-CSA Loop #0 Attenuation Calculated Attenuation of Ideal Cable Attenuation Measured on DLS 400 1000 1200 1400 1600 Frequency, kHz Impedance The bold line shows the calculated value for ideal cables; the other shows values measured on a DLS 400.
  • Page 123 CHARACTERISTICS OF FIXED LOOPS Impedance Graphs Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At CO Side Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At Customer Side Page 111...

  • Page 124: Mid-Csa Loop #1

    CHARACTERISTICS OF FIXED LOOPS 10.1.12 Mid-CSA Loop #1 Attenuation Calculated Attenuation of Ideal Cable Attenuation Measured on DLS 400 1000 1200 1400 1600 Frequency, kHz Impedance The bold line shows the calculated value for ideal cables; the other shows values measured on a DLS 400.
  • Page 125 CHARACTERISTICS OF FIXED LOOPS Impedance Graphs Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At CO Side Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At Customer Side Page 113...

  • Page 126: Mid-Csa Loop #2

    CHARACTERISTICS OF FIXED LOOPS 10.1.13 Mid-CSA Loop #2 Attenuation Calculated Attenuation of Ideal Cable Attenuation Measured on DLS 400 1000 1200 1400 1600 Frequency, kHz Impedance The bold line shows the calculated value for ideal cables; the other shows values measured on a DLS 400.
  • Page 127 CHARACTERISTICS OF FIXED LOOPS Impedance Graphs Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At CO Side Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At Customer Side Page 115...

  • Page 128: Mid-Csa Loop #3

    CHARACTERISTICS OF FIXED LOOPS 10.1.14 Mid-CSA Loop #3 Attenuation Calculated Attenuation of Ideal Cable Attenuation Measured on DLS 400 1000 1200 1400 1600 Frequency, kHz Impedance The bold line shows the calculated value for ideal cables; the other shows values measured on a DLS 400.
  • Page 129 CHARACTERISTICS OF FIXED LOOPS Impedance Graphs Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At CO Side Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At Customer Side Page 117...

  • Page 130: Mid-Csa Loop #4

    CHARACTERISTICS OF FIXED LOOPS 10.1.15 Mid-CSA Loop #4 Attenuation Calculated Attenuation of Ideal Cable Attenuation Measured on DLS 400 1000 1200 1400 1600 Frequency, kHz Impedance The bold line shows the calculated value for ideal cables; the other shows values measured on a DLS 400.
  • Page 131 CHARACTERISTICS OF FIXED LOOPS Impedance Graphs Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At CO Side Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At Customer Side Page 119...

  • Page 132: Mid-Csa Loop #5

    CHARACTERISTICS OF FIXED LOOPS 10.1.16 Mid-CSA Loop #5 Attenuation Calculated Attenuation of Ideal Cable Attenuation Measured on DLS 400 1000 1200 1400 1600 Frequency, kHz Impedance The bold line shows the calculated value for ideal cables; the other shows values measured on a DLS 400.
  • Page 133 CHARACTERISTICS OF FIXED LOOPS Impedance Graphs Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At CO Side Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At Customer Side Page 121...

  • Page 134: Mid-Csa Loop #6

    CHARACTERISTICS OF FIXED LOOPS 10.1.17 Mid-CSA Loop #6 Attenuation Calculated Attenuation of Ideal Cable Attenuation Measured on DLS 400 1000 1200 1400 1600 Frequency, kHz Impedance The bold line shows the calculated value for ideal cables; the other shows values measured on a DLS 400.
  • Page 135 CHARACTERISTICS OF FIXED LOOPS Impedance Graphs Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At CO Side Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At Customer Side Page 123...

  • Page 136: Ansi Loops

    10.2 ANSI Loops 10.2.1 ANSI Loop #1 Attenuation Calculated Attenuation of Ideal Cable Attenuation Measured on DLS 400 Frequency, kHz Impedance The bold line shows the calculated value for ideal cables; the other shows values measured on a DLS 400.
  • Page 137 CHARACTERISTICS OF FIXED LOOPS Impedance Graphs Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At CO Side Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At Customer Side Page 125...

  • Page 138: Ansi Loop #2

    CHARACTERISTICS OF FIXED LOOPS 10.2.2 ANSI Loop #2 Attenuation Calculated Attenuation of Ideal Cable Attenuation Measured on DLS 400 Frequency, kHz Impedance The bold line shows the calculated value for ideal cables; the other shows values measured on a DLS 400.
  • Page 139 CHARACTERISTICS OF FIXED LOOPS Impedance Graphs Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At CO Side Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At Customer Side Page 127...

  • Page 140: Ansi Loop #3

    CHARACTERISTICS OF FIXED LOOPS 10.2.3 ANSI Loop #3 Attenuation Calculated Attenuation of Ideal Cable Attenuation Measured on DLS 400 Frequency, kHz Impedance The bold line shows the calculated value for ideal cables; the other shows values measured on a DLS 400.
  • Page 141 CHARACTERISTICS OF FIXED LOOPS Impedance Graphs Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At CO Side Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At Customer Side Page 129...

  • Page 142: Ansi Loop #4

    CHARACTERISTICS OF FIXED LOOPS 10.2.4 ANSI Loop #4 Attenuation Calculated Attenuation of Ideal Cable Attenuation Measured on DLS 400 Frequency, kHz Impedance The bold line shows the calculated value for ideal cables; the other shows values measured on a DLS 400.
  • Page 143 CHARACTERISTICS OF FIXED LOOPS Impedance Graphs Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At CO Side Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At Customer Side Page 131...

  • Page 144: Ansi Loop #5

    CHARACTERISTICS OF FIXED LOOPS 10.2.5 ANSI Loop #5 Attenuation Calculated Attenuation of Ideal Cable Attenuation Measured on DLS 400 Frequency, kHz Impedance The bold line shows the calculated value for ideal cables; the other shows values measured on a DLS 400.
  • Page 145 CHARACTERISTICS OF FIXED LOOPS Impedance Graphs Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At CO Side Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At Customer Side Page 133...

  • Page 146: Ansi Loop #6

    CHARACTERISTICS OF FIXED LOOPS 10.2.6 ANSI Loop #6 Attenuation Calculated Attenuation of Ideal Cable Attenuation Measured on DLS 400 Frequency, kHz Impedance The bold line shows the calculated value for ideal cables; the other shows values measured on a DLS 400.
  • Page 147 CHARACTERISTICS OF FIXED LOOPS Impedance Graphs Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At CO Side Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At Customer Side Page 135...

  • Page 148: Ansi Loop #7

    CHARACTERISTICS OF FIXED LOOPS 10.2.7 ANSI Loop #7 Attenuation Calculated Attenuation of Ideal Cable Attenuation Measured on DLS 400 Frequency, kHz Impedance The bold line shows the calculated value for ideal cables; the other shows values measured on a DLS 400.
  • Page 149 CHARACTERISTICS OF FIXED LOOPS Impedance Graphs Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At CO Side Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At Customer Side Page 137...

  • Page 150: Ansi Loop #8

    CHARACTERISTICS OF FIXED LOOPS 10.2.8 ANSI Loop #8 Attenuation Calculated Attenuation of Ideal Cable Attenuation Measured on DLS 400 Frequency, kHz Impedance The bold line shows the calculated value for ideal cables; the other shows values measured on a DLS 400.
  • Page 151 CHARACTERISTICS OF FIXED LOOPS Impedance Graphs Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At CO Side Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At Customer Side Page 139...

  • Page 152: Ansi Loop #9

    CHARACTERISTICS OF FIXED LOOPS 10.2.9 ANSI Loop #9 Attenuation Calculated Attenuation of Ideal Cable Attenuation Measured on DLS 400 Frequency, kHz Impedance The bold line shows the calculated value for ideal cables; the other shows values measured on a DLS 400.
  • Page 153 CHARACTERISTICS OF FIXED LOOPS Impedance Graphs Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At CO Side Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At Customer Side Page 141...

  • Page 154: Ansi Loop #11

    CHARACTERISTICS OF FIXED LOOPS 10.2.10 ANSI Loop #11 Attenuation Calculated Attenuation of Ideal Cable Attenuation Measured on DLS 400 Frequency, kHz Impedance The bold line shows the calculated value for ideal cables; the other shows values measured on a DLS 400.
  • Page 155 CHARACTERISTICS OF FIXED LOOPS Impedance Graphs Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At CO Side Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At Customer Side Page 143...

  • Page 156: Ansi Loop #12

    CHARACTERISTICS OF FIXED LOOPS 10.2.11 ANSI Loop #12 Attenuation Calculated Attenuation of Ideal Cable Attenuation Measured on DLS 400 Frequency, kHz Impedance The bold line shows the calculated value for ideal cables; the other shows values measured on a DLS 400.
  • Page 157 CHARACTERISTICS OF FIXED LOOPS Impedance Graphs Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At CO Side Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At Customer Side Page 145...

  • Page 158: Ansi Loop #13

    CHARACTERISTICS OF FIXED LOOPS 10.2.12 ANSI Loop #13 Attenuation Calculated Attenuation of Ideal Cable Attenuation Measured on DLS 400 Frequency, kHz Impedance The bold line shows the calculated value for ideal cables; the other shows values measured on a DLS 400.
  • Page 159 CHARACTERISTICS OF FIXED LOOPS Impedance Graphs Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At CO Side Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At Customer Side Page 147...

  • Page 160: Ansi Loop #15

    CHARACTERISTICS OF FIXED LOOPS 10.2.13 ANSI Loop #15 Attenuation Calculated Attenuation of Ideal Cable Attenuation Measured on DLS 400 Frequency, kHz Impedance The bold line shows the calculated value for ideal cables; the other shows values measured on a DLS 400.
  • Page 161 CHARACTERISTICS OF FIXED LOOPS Impedance Graphs Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At CO Side Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At Customer Side Page 149...

  • Page 162: Mid-Ansi Loop #7

    CHARACTERISTICS OF FIXED LOOPS 10.2.14 Mid-ANSI Loop #7 Attenuation Calculated Attenuation of Ideal Cable Attenuation Measured on DLS 400 Frequency, kHz Impedance The bold line shows the calculated value for ideal cables; the other shows values measured on a DLS 400.
  • Page 163 CHARACTERISTICS OF FIXED LOOPS Impedance Graphs Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At CO Side Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At Customer Side Page 151...

  • Page 164: Eia Loops

    CHARACTERISTICS OF FIXED LOOPS 10.3 EIA Loops 10.3.1 EIA Loop #1 Attenuation Calculated Attenuation of Ideal Cable Attenuation Measured on DLS 400 1000 1200 1400 1600 Frequency, kHz Impedance The bold line shows the calculated value for ideal cables; the other shows values measured on a DLS 400.
  • Page 165 CHARACTERISTICS OF FIXED LOOPS Impedance Graphs Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At CO Side Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At Customer Side Page 153...

  • Page 166: Eia Loop #2

    CHARACTERISTICS OF FIXED LOOPS 10.3.2 EIA Loop #2 Attenuation Calculated Attenuation of Ideal Cable Attenuation Measured on DLS 400 1000 1200 1400 1600 Frequency, kHz Impedance The bold line shows the calculated value for ideal cables; the other shows values measured on a DLS 400.
  • Page 167 CHARACTERISTICS OF FIXED LOOPS Impedance Graphs Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At CO Side Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At Customer Side Page 155...

  • Page 168: Eia Loop #3

    CHARACTERISTICS OF FIXED LOOPS 10.3.3 EIA Loop #3 Attenuation Calculated Attenuation of Ideal Cable Attenuation Measured on DLS 400 1000 1200 1400 1600 Frequency, kHz Impedance The bold line shows the calculated value for ideal cables; the other shows values measured on a DLS 400.
  • Page 169 CHARACTERISTICS OF FIXED LOOPS Impedance Graphs Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At CO Side Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At Customer Side Page 157...

  • Page 170: Eia Loop #4

    CHARACTERISTICS OF FIXED LOOPS 10.3.4 EIA Loop #4 Attenuation Calculated Attenuation of Ideal Cable Attenuation Measured on DLS 400 Frequency, kHz Impedance The bold line shows the calculated value for ideal cables; the other shows values measured on a DLS 400.
  • Page 171 CHARACTERISTICS OF FIXED LOOPS Impedance Graphs Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At CO Side Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At Customer Side Page 159...

  • Page 172: Eia Loop #5

    CHARACTERISTICS OF FIXED LOOPS 10.3.5 EIA Loop #5 Attenuation Calculated Attenuation of Ideal Cable Attenuation Measured on DLS 400 Frequency, kHz Impedance The bold line shows the calculated value for ideal cables; the other shows values measured on a DLS 400.
  • Page 173 CHARACTERISTICS OF FIXED LOOPS Impedance Graphs Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At CO Side Real Imaginary -100 -150 -200 1000 1200 1400 1600 Frequency, kHz At Customer Side Page 161...

  • Page 174: Characteristics Of Impairments

    CHARACTERISTICS OF IMPAIRMENTS CHARACTERISTICS OF IMPAIRMENTS 11.1 Noise shapes produced by Generators A & B -100 -110 -120 -130 -140 Frequency, kHz Figure 11.1 T1.601 NEXT -100 -110 -120 -130 -140 Frequency, kHz Figure 11.2 DSL NEXT Page 162...

  • Page 175: Figure 11.4 Hdsl + Adsl Next

    CHARACTERISTICS OF IMPAIRMENTS -100 -110 -120 -130 -140 -150 Frequency, kHz Figure 11.3 HDSL NEXT -100 -110 -120 -130 -140 Frequency, kHz Figure 11.4 HDSL + ADSL NEXT Page 163...

  • Page 176: Figure 11.5 T1.413 Ii Ec Adsl Upstream Next

    CHARACTERISTICS OF IMPAIRMENTS -100 -110 -120 -130 -140 Frequency, kHz Figure 11.5 T1.413 II EC ADSL upstream NEXT -120 -125 -130 -135 -140 -145 -150 Frequency, kHz Figure 11.6 T1.413 II EC ADSL upstream FEXT (9 kft 26 AWG) Page 164...

  • Page 177: Figure 11.7 T1.413 Ii Fdm Adsl Upstream Next Itu-T Na Adsl Upstream Next

    CHARACTERISTICS OF IMPAIRMENTS -100 -110 -120 -130 -140 -150 Frequency, kHz Figure 11.7 T1.413 II FDM ADSL upstream NEXT ITU-T NA ADSL Upstream NEXT -130 -135 -140 -145 -150 Frequency, kHz Figure 11.8 ITU-T NA FDM ADSL Downstream FEXT Page 165...

  • Page 178: Figure 11.9 Itu-T Na Adsl Upstream Fext

    CHARACTERISTICS OF IMPAIRMENTS -130 -135 -140 -145 -150 Frequency, kHz Figure 11.9 ITU-T NA ADSL Upstream FEXT -100 -110 -120 -130 -140 Frequency, kHz Figure 11.10 HDSL2 downstream NEXT (H2TUC) Page 166...

  • Page 179: Figure 11.11 Hdsl2 Upstream Next (H2Tur)

    CHARACTERISTICS OF IMPAIRMENTS -100 -110 -120 -130 -140 Frequency, kHz Figure 11.11 HDSL2 upstream NEXT (H2TUR) -100 -110 -120 -130 -140 1000 Frequency, kHz Figure 11.12 ITU-T Euro-K or Kirkby noise Page 167...

  • Page 180: Noise Shapes Produced By Generator C

    CHARACTERISTICS OF IMPAIRMENTS 11.2 Noise shapes produced by Generator C -120 -125 -130 -135 -140 -145 -150 1000 1200 Frequency, kHz Figure 11.13 ADSL FEXT (T1.413, Issue I & II) -100 -110 -120 -130 -140 1000 10000 Frequency, kHz Figure 11.14 Model A Page 168...

  • Page 181: Figure 11.15 Model B

    CHARACTERISTICS OF IMPAIRMENTS -100 -105 -110 -115 1000 Frequency, kHz Figure 11.15 Model B -100 -110 -120 -130 -140 1000 1200 1400 1600 1800 2000 Frequency, kHz Figure 11.16 T1 NEXT (Original DLS 400A shape) Page 169...

  • Page 182: Figure 11.17 International Ami

    CHARACTERISTICS OF IMPAIRMENTS -100 -110 -120 -130 -140 1000 1500 2000 2500 Frequency, kHz Figure 11.17 International AMI 1000 1500 2000 2500 Frequency, kHz Figure 11.18 T1. 413 II T1 (AMI) NEXT ITU-T NA T1 (AMI) NEXT HDSL2 T1 (AMI) NEXT Page 170...

  • Page 183: Figure 11.19 T1.413 Ii Ec Adsl Downstream Next

    CHARACTERISTICS OF IMPAIRMENTS -100 -110 -120 -130 -140 1200 1800 2400 Frequency, kHz Figure 11.19 T1.413 II EC ADSL downstream NEXT -100 -110 -120 -130 -140 1200 1800 2400 Frequency, kHz Figure 11.20 HDSL2 EC ADSL downstream NEXT Page 171...

  • Page 184: Figure 11.21 T1.413 Ii Fdm Adsl Downstream Fext (9Kft 26 Awg)

    CHARACTERISTICS OF IMPAIRMENTS -120 -125 -130 -135 -140 -145 -150 1200 1800 2400 Frequency, kHz Figure 11.21 T1.413 II FDM ADSL downstream FEXT (9kft 26 AWG) -100 -110 -120 -130 -140 1200 1800 2400 Frequency, kHz Figure 11.22 ITU-T NA FDM ADSL downstream NEXT HDSL2 FDM ADSL downstream NEXT T1.413 II FDM ADSL downstream NEXT Page 172...

  • Page 185: Troubleshooting

    • If using the IEEE 488 interface: 1) Check that no device has the same IEEE 488 address as the DLS 400. 2) Check that the IEEE 488 address of the DLS 400 corresponds to the address set in the program. See section 7.1.1 for more details.
  • Page 186 2) Check that all the cards in the system are firmly seated in their sockets. Using anti-static precautions, open the lid and push down on all the cards. The DLS 400 does not raise SRQ after a query: • You must enable all the relevant bits before using SRQ. For example, to raise SRQ when there is a message available (MAV) send the command “*SRE 16”.

  • Page 187: References

    REFERENCES REFERENCES • ANSI T1.601–1991, ISDN Basic Access Interface for use on Metallic Loops for Application on the Network Side of the NT (American National Standards Institute, 11 West 42 Street, New York, NY 10036, USA) • ANSI Technical Report on High Bit Rate Digital Subscriber Lines (HDSL) – June 1992 (American National Standards Institute, 11 West 42 Street, New York, NY 10036, USA)
  • Page 188 REFERENCES • SCPI Standard Commands for Programmable Instruments, available from some inter- face controller manufacturers (SCPI Consortium, 8380 Hercules Drive, Suite P.S., La Mesa, CA 91942, Phone: (619) 697-8790, Fax: (619) 697-5955) • ITU–T G.992.2 Draft (formerly G.lite), Splitterless Asymmetric Digital Subscriber Line (ADSL) Transceivers (International Telecommunication Union, Place des Nations, CH1211 Geneva 20, Switzerland) •...
  • Page 189 DLS TestWorks (Consultronics) service centre prior to the expiration of the warranty period for the purpose of allowing DLS TestWorks (Consultronics) to inspect and repair the equipment.
  • Page 190 WARRANTY This warranty constitutes the only warranty applicable to the equipment sold by DLS Test- Works (Consultronics) and no other warranty or condition, statutory or otherwise, expressed or implied, shall be imposed upon DLS TestWorks (Consultronics) nor shall any representation made by any person, including a representation by a representative or agent of DLS TestWorks (Consultronics), be effective to extend the warranty coverage provided herein.
  • Page 191 SHIPPING THE DLS 400 SHIPPING THE DLS 400 To prepare the DLS 400 for shipment, turn the power off and disconnect all cables, includ- ing the power cable, and pack the simulator in the original carton. Do not place any cables or accessories directly against the front panel as this may scratch the surface of the unit.
  • Page 192 SPECIFICATIONS 16.1 General The DLS 400 simulates a single twisted-pair cable, and up to 2 optional impairments cards. The user can select the simulated loop and the length of the variable loops using the IEEE 488 or the RS–232 interface. The command language in both cases is based on the Standard Commands for Programmable Interfaces (SCPI) standard.
  • Page 193 SPECIFICATIONS DLS 400H BYPASS CSA #1 CSA #2 VARIABLE 24 AWG CSA #3 VAR 24 AWG+TAP CSA #4 VARIABLE 26 AWG CSA #5 VAR 26 AWG+TAP CSA #6 CSA #7 CSA #8 EXT-CSA #9 EXT-CSA #10 DLS 400N BYPASS CSA #4...
  • Page 194 SPECIFICATIONS DLS 400HN BYPASS CSA #1 ANSI #1 EIA #1 CSA #2 ANSI #2 EIA #2 VARIABLE 24 AWG CSA #3 ANSI #5 EIA #3 VAR 24 AWG+TAP CSA #4 ANSI #7 EIA #4 VARIABLE 26 AWG CSA #5 ANSI #8...
  • Page 195 • ETSI ETR 328 ADSL Standard It operates in a specially designated slot in the chassis of the DLS 400 Wireline Simulator and consists of seven discrete generation sections. The features associated with one gener- ator operate independently of the others. However, the options within a section can only be activated one at a time.
  • Page 196 SPECIFICATIONS 16.3.2 NEXT Generators A and B Level: Levels are varied in 0.1 dB steps over a range from 10 dB below the 1–disturber level to 10 dB above the 49–disturber level. The absolute power associated with each will vary according to the NEXT PSD shape selected.
  • Page 197 SPECIFICATIONS 16.3.3 NEXT Generator C Level: Levels are varied in 0.1 dB steps over a range from 10 dB below the 1–disturber level to 10 dB above the 49–disturber level. The absolute power associated with each will vary according to the NEXT PSD shape selected.
  • Page 198 Level: 0–60 Volts rms at 60 Hz; 0–50 Volts at 50 Hz, 1 volt steps Injection: Balanced transformer at 25–75% of loop length (DLS 400) 16.3.8 Externally Generated Signals In addition to the generators, this section conditions externally-generated signals, and applies them to the line.
  • Page 199 SPECIFICATIONS Output: External signals are summed with other noise signals and injected through the standard output circuit 16.4 Mechanical Construction: Main chassis plus plug-in wireline modules Available slots: Noise card slots: Wireline modules: Connectors: Bantam jacks and 3-pin balanced CF 16.5 IEEE 488 Remote Control The unit can be controlled via an IEEE 488 interface.
  • Page 200 SPECIFICATIONS 16.7 Included 1) DLS 400 Chassis 2) DLS 400 Control Software 3) Manual 4) IEEE 488 shielded cable 5) RS–232 cable 6) Power cord 7) 2 fuses 16.8 Options National Instruments GPIB–PCII interface card. 16.9 Electrical 16.9.1 AC Power Rated Input Voltage: 100–240 VAC (±10%)
  • Page 201 In order for the unit to operate correctly and safely, it must be adequately ventilated. The DLS 400 contains ventilation holes for cooling. Do not install the equipment in any loca- tion where the ventilation is blocked. For optimum performance, the equipment must be operated in a location that provides at least 10 mm of clearance from the ventilation holes.
  • Page 202 SAFETY SAFETY 17.1 Information 17.1.1 Protective Grounding (Earthing) This unit consists of an exposed metal chassis that is connected directly to ground (earth) via a power cord. The symbol used to indicate a protective grounding conductor terminal in the equipment is shown in this section under “symbols”. 17.1.2 Before Operating the Unit •...
  • Page 203 SAFETY 17.1.3 Power Supply Requirements The unit can operate from any single phase AC power source that supplies between 100V and 240V (±10%) at a frequency range of 50 Hz to 60 Hz. For more information, see chapter 16 of this manual. WARNING: To avoid electrical shock, do not operate the equipment if it shows any sign of damage to any portion of its exterior surface, such as the outer casting or panels.
  • Page 204 SAFETY DLS TestWorks (Consultronics Ltd.) assumes no liability for the customer’s failure to comply with any of these requirements. 17.2.1 Before Operating the Unit • Inspect the equipment for any signs of damage, and read the Operating and Reference Manual thoroughly.
  • Page 205 SAFETY • Some of the equipment’s capacitors may be charged even when the equipment is not connected the power source. 17.3 Symbols When any of these symbols appear on the unit, this is their meaning: EQUIPOTENTIALITY–FUNCTIONAL PROTECTIVE GROUNDING EARTH TERMINAL CONDUCTOR TERMINAL CAUTION - REFER TO ACCOMPANYING DOCUMENTS Page 193...
  • Page 207 Appendix A Appendix A INTERPRETATION OF LEVEL UNITS This appendix discusses the relation between the simulator setting and the real noise it represents. In all cases the objective is to choose a setting that corresponds to the reading of a level meter connected to the equipment.
  • Page 208 Appendix A P (load) = V * V / R watts = (3.00E–7) / 135 watts = 2.22E–9 watts P (ref) = 1E–3 watts = 10*LOG [P(load)/P(ref)] dBm = 10*LOG [(2.22E–9)/(1E–3)] dBm = –56.5 dBm 2) dBm/Hz to dBm Here we will assume that the bandwidth is 3000 Hz and the setting is –70 dBm/Hz. = dBm/Hz + 10*LOG (bandwidth) dBm = –70.0 + 10*LOG (3000) dBm = –70.0 + 34.8 dBm...
  • Page 209 Appendix A One of 3 loads are used when calibrating Consultronics Impairments (Noise) generators. In all cases any wirelines in place are set to zero length. They are 50 Ω, 67.5 Ω, and one 135 Ω resistor in parallel with one complex impedance as described in appendix E. These impairments are calibrated using a 50 Ω...
  • Page 210 400 that affects both the loops and the impairments generator. The effect of this addition is to allow users to obtain test results using a DLS 400 that are very close to test results using a DLS 200 and DLS 200H.
  • Page 211 Appendix C Appendix C MEASUREMENTS Measurement of Wireline Simulators Data for the characteristics of 19, 22, 24 and 26 AWG lines were obtained from Bell Sys- tem Technical Reference PUB 62310. This provides information on the line’s attenuation FOR AN INFINITELY LONG LINE. Data for other wirelines are generally specified in terms of resistance, impedance, capacitance and conductance per unit length of line as it varies with frequency.
  • Page 212 (Rx) Signal device. The centre tap of the receive transformer need not be grounded, but may be if no other point between the transformers is grounded. THE USE OF UNBALANCED SIGNALS THROUGH THE DLS 400 WILL USUALLY RESULT IN INCORRECT MEASUREMENTS.
  • Page 213 You just connect up using twisted pair wire—or better, screened twisted pair—from the modems to the DLS unit. It is best to keep the connecting wire short, since then it picks up Page 201...
  • Page 214 At the side of the DLS 400 where you want added impairments, plug in one end of your connecting wire to one of the spare connectors on the DLS 400. It is either a bantam jack or a CF connector. Plug the other end in to the NSA 400J. The diagram shows the connections together with connections internal to the NSA.
  • Page 215 S e t S e t The diagram shows a DLS 400 as the wireline simulator, but it could equally well be a DLS 90, any other Consultronics line simulator, or even real cable. The various types of jacks and plugs referred to above are shown in the diagrams below.
  • Page 216 Appendix E Appendix E COMMONLY ASKED QUESTIONS Q) How much will an impairments module affect the signals travelling along the wire- line? A) It depends on the loop, the frequency, and the impedance of the modems being tested. For frequencies above 100 kHz, and with a Receiver/Transmitter that provides 135 Ω, connecting the impairments generator reduces the signal at the receiver by 0.14 dB.
  • Page 217 ANSI special load, and one of the ANSI loops. Q) Why do I have to use a balanced meter to measure noise levels from the DLS 400? What happens if I just use the meter that I already have? A) The Transmitters/Receivers under test provide a balanced load, so we should measure them the same way.
  • Page 218 Appendix F Appendix F PROGRAM EXAMPLE Downloadable Crosstalk Noise For each downloadable shape, the file on disk is an ASCII text file. Three types of files are available and are differentiated by their extension: .LO1, .LO2 and .HI. The .LO1 files may be downloaded to either crosstalk generator A and B.
  • Page 219 Appendix F _ Category: For future use. _Max: –30 Send :sourcea:xtalka:program:maximum <_Max> e.g. :sourcea:xtalka:program:maximum –30 _Min: –80 Send :sourcea:xtalka:program:minimum <_Min> e.g. :sourcea:xtalka:program:minimum –80 _Compatibility: FLASHLO: 10 CONTROLLER: 16 The keywords FLASHLO and CONTROLLER are used in this section. The symbol “:” precedes the minimum requirement. Any revision equal to or greater than the value which follows this symbol will be considered compatible.
  • Page 220 Appendix F _Coefficients: Send :sourcea:xtalka:program:start. The “start” command may be issued at any time, but must be done before issuing any data commands. Send :sourcea:xtalka:program:data xx,yy,zz,…for dB Offset and the prg filter data in 1 command – this information will be contained in the first 2 lines under _Coefficients. Throughout this process, numbers should be translated from decimal (or binary) to hexa- decimal format.
  • Page 221 Appendix F the LF), which means that several data lines may be concatenated together. When sending consecutive commands it is not necessary to always re-send the entire message if the heading is the same as the previous one. For example, sending :sourcea:xtalka:pro- gram:data xx,yy,zz….
  • Page 222 Appendix F When downloading a file to the ADSL noise card, the following error messages may be received: Too many pgm filter data Too many FIR coefficients Too many FIR taps When any of these errors occurs, the crosstalk noise will not be generated properly. Note that the message will be preceded by <01>...
  • Page 223 Appendix F *ESR? :SOURCEA:XTALKA:PROGRAM:DATA 0 28 3B 68 21 CC 2 68 *ESR? :SOURCEA:XTALKA:PROGRAM:DATA 3B 35 97 FF 92 B2 45 00 *ESR? :SOURCEA:XTALKA:PROGRAM:DATA 71 8E 3A 00 DD 58 F5 FF *ESR? :SOURCEA:XTALKA:PROGRAM:DATA ED 33 1D 00 10 E9 B7 FF *ESR? :SOURCEA:XTALKA:PROGRAM:DATA 2C D8 46 00 2C 44 87 00 *ESR?
  • Page 225 Index Index ADSL A 43 HDSL NEXT 43, 48, 163 ADSL B 43 HDSL+ADSL 43, 48, 81 ADSL FEXT 43, 49, 197 ADSL NEXT 48, 197 AMI 44, 49, 170, 197 IEEE 2, 3, 4, 6, 7, 9, 10, 13, 25, 56, 57, 58, 59, 60, 61, 62, 64, 66, 70, 173, 175, 180, 187, 188 Common Command 56, 175...
  • Page 226 Index Powerline 52, 53, 86, 183, 186, 204 Shaped Noise Generator 50, 83, 84 Protective Grounding 190 SRER 67 PSC 66 SRQ 56, 57, 58, 59, 65, 67, 70, 71, 72, 174 Standards 175 Status Byte 57, 58, 59, 64, 67, 69, 70 STB 59, 64, 67, 69, 72 Query 64, 65, 66, 67, 68, 70 Symbols 193...

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