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ADC HIGAIN HXU-359 Manual

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H
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™150-359-100-01ƨ
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150-359-100-01
ECTION
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ULTIPLEXER
T
ECHNICAL
HXU-359 List 1
Part Number: 150-2207-01
CLEI Code: VAPHCE0C
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  • Page 1 ULTIPLEXER ECHNICAL RACTICE HXU-359 List 1 Part Number: 150-2207-01 CLEI Code: VAPHCE0C ™150-359-100-01ƨ 150-359-100-01 ECTION...
  • Page 2 In no event shall ADC be liable for any damages resulting from loss of data, loss of use, or loss of profits, and ADC further disclaims any and all liability for indirect, incidental, special, consequential or other similar damages. This disclaimer of liability applies to all products, publications and services during and after the warranty period.
  • Page 3 • Check the packing list to ensure complete and accurate shipment of each listed item. If the shipment is short or irregular, contact ADC as described in the Warranty located inside the back cover. If you must store the equipment for a prolonged period, store the equipment in its original container.
  • Page 4 Safety Information and Notices 150-359-100-01, Revision 01 AFETY NFORMATION AND OTICES Electrical Rating and Insulation The card power input is rated –40 to –57.5 Vdc, 0.37 to 0.27 A. The power supply feeds must be either (1) -48 Vdc SELV sources or (2) -48 Vdc sources that are both electrically isolated from the AC sector and reliably connected to earth.
  • Page 5 150-359-100-01, Revision 01 Information et Avertissements de Sécurité Metallic Telecommunication Interconnections The card’s metallic telecommunication interface is not intended to be electrically connected directly to the public telecommunication network and, therefore, they are tested to the TNV requirements. Information et Avertissements de Sécurité...
  • Page 6 Information et Avertissements de Sécurité 150-359-100-01, Revision 01 E/S de télémétrie Les E/S de télémétrie doivent êtres branchées soit (1) à une source TBTS ou (2) à une source qui est isolée électriquement du secteur ca et qui est reliée à la terre de façon fiable.

  • Page 7: Table Of Contents

    150-359-100-01, Revision 01 Table of Contents ABLE OF ONTENTS Overview _______________________________________________ 1 Features ..................1 Compatibility ................2 Application................2 Front Panel ................3 Installation _____________________________________________ 5 Provisioning ____________________________________________ 7 Accessing the Management Interface ........7 Accessing the HXU-359 Interface ........... 9 Setting Date and Time ............
  • Page 8 Table of Contents 150-359-100-01, Revision 01 History Menu................39 Viewing History Screens .........40 Viewing the Event Log ..........42 Testing_________________________________________________44 Self Diagnostics..............44 Protection Switch ..............45 Loopbacks ................46 DS1 Loopbacks ............46 STS-1 Loopbacks.............47 Appendix A - Specifications _______________________________49 Appendix B - Functional Description________________________51 Appendix C - Product Support_____________________________52 Technical Support..............52 Returns..................52...
  • Page 9 150-359-100-01, Revision 01 List of Figures IST OF IGURES 1. Soneplex Wideband 3190 Application..........2 2. HXU-359 Installed in a Soneplex Wideband 3190 ....... 3 3. HXU-359 List 1 Front Panel ..............4 4. Installing an HXU-359 Multiplexer Card ..........5 5.
  • Page 10 List of Tables 150-359-100-01, Revision 01 27. History Menu: Event Log ..............42 28. Test Menu: Self Diagnostics..............44 29. Problem Report ..................45 30. System Loopbacks ................47 31. Simplified Block Diagram ..............51 32. Location of Bar Code Label and Configuration Number ....54 IST OF ABLES 1.

  • Page 11: Overview

    150-359-100-01, Revision 01 Overview VERVIEW ® The HiGain Multiplexer Unit, HXU-359 List 1, is the SONET multiplexing component of the Soneplex Wideband 3190. It can also be installed in the HiGain Access Concentrator Express (ACE) chassis, a single-rack enclosure. The HXU-359 multiplexes 28 DS1 lines into a single Synchronous Transport Signal (STS-1) interface at a signal rate of 51.84 Mbps.

  • Page 12: Compatibility

    Overview 150-359-100-01, Revision 01 • Office dry-contact alarms (Major, Minor, Critical) under the control of the HMU • Front-panel status indicators • Front-panel RS-232 craft port for direct connection to a maintenance terminal OMPATIBILITY The HXU-359 List 1 is compatible with Soneplex Wideband 3190 management shelves and the ACE-358 standalone enclosure.

  • Page 13: Front Panel

    150-359-100-01, Revision 01 Overview RONT ANEL Figure 2 shows two HXU-359 List 1 multiplexers installed in a Soneplex Wideband 3190. Multiplexer A (Card A) Multiplexer B (Card B) PairGain PairGain PairGain PairGain HXU-358 HXU-358 TEST TEST PairGain RS232 RS232 RS232 RS232 RS-232 port RS232...
  • Page 14 Overview 150-359-100-01, Revision 01 RS232 HXU-359 Status LEDs Figure 3. HXU-359 List 1 Front Panel The HXU-359 continuously monitors the services, the Network Element (NE), the network and the signals it transports. The LEDs on the HXU front panel indicate current states. Any alarm triggers an audible alarm relay. Table 1.

  • Page 15: Installation

    150-359-100-01, Revision 01 Installation NSTALLATION Before installing the HXU-359, visually check its packaging to ensure that it has sustained no shipping damage. Immediately report any damage to the shipping agent. The HXU-359 multiplexer card can be damaged by electrostatic discharge (ESD). •...
  • Page 16 Installation 150-359-100-01, Revision 01 If you are installing an HXU-359 in a Soneplex Wideband 3190 that has a different multiplexer model, contact Customer Service. Do not mix multiplexers in a system. HXU-359 multiplexer cards can be installed in a Soneplex Wideband 3190 or a standalone ACE enclosure.

  • Page 17: Provisioning

    150-359-100-01, Revision 01 Provisioning ROVISIONING In a Soneplex Wideband 3190, the HMU-319 manages the HXU-359 by using Terminal Access Option (TAO) software. When installed in the ACE-358 chassis, the HXU-359 can also be provisioned directly from the HXU craft port. Refer to the Soneplex Wideband 3190 Installation Manual and the technical practice for the HMU-319 List 7A for complete information about connecting a maintenance terminal.
  • Page 18 Provisioning 150-359-100-01, Revision 01 Figure 5. Management Interface To log on to the management interface: Once the maintenance terminal is connected to the HMU and a banner (headline) appears on the screen, press ENTER . This accesses the TL1 interface. ENTER The Enter TID field appears to the left of the cursor.

  • Page 19: Accessing The Hxu-359 Interface

    150-359-100-01, Revision 01 Provisioning From the Shelf Status screen, select the Shelf Options, then select Mux Type and the type of multiplexer (HXU-359). The logon screen can also be accessed by a TELNET session or through connection to the OS port. See the HMU technical practice for more information.
  • Page 20 Provisioning 150-359-100-01, Revision 01 The HXU-359 logon menu provides the following menu options: History Config Inventory Help Main Monitor Test Quit Product information Logoff Customer Status (Services, Transport, Services 24-Hour History Self Diagnostics Active alarms Services and System) Services (errors) Transport View Problem Report Services...
  • Page 21 150-359-100-01, Revision 01 Provisioning The HXU-359 menus can be navigated by using the following navigational keys: Table 2. Navigational Keys Use this key to perform this function ← ↑ → ↓ Move to a menu selection Move through the fields of a selection SPACEBAR Scroll through options ENTER...

  • Page 22: Setting Date And Time

    Provisioning 150-359-100-01, Revision 01 Minimal configuration tasks for the HXU-359 include: • Setting the date and time (see below) • Entering the card ID (page • Setting the system clock synchronization (page • Setting up a cross-connect map (page • Configuring the DS1 ports (page •...

  • Page 23: Entering Card Identification

    150-359-100-01, Revision 01 Provisioning NTERING DENTIFICATION Figure 9. Config Menu: Card ID Select the Config menu and choose System. Choose Card ID. Type a name for the card (network element name), and then press ENTER . The name entered is attached to both cards in a protected system. Card A is the multiplexer in slot A;...

  • Page 24: Setting The System Clock Synchronization

    Provisioning 150-359-100-01, Revision 01 ETTING THE YSTEM LOCK YNCHRONIZATION Synchronous network elements must derive their timing from a reference source. Each HXU-359 can be synchronized with the following timing sources: • the internal clock, which is set at 51.84 MHz ±20 ppm •...

  • Page 25: Clock Configuration Options

    150-359-100-01, Revision 01 Provisioning Select the Config menu, choose Clock, and then perform the following tasks: Using the spacebar to cycle through the configuration options, set the Primary Reference. This selection determines the primary source for clock synchronization. See Table A service or transport must be configured as in service (IS) prior to being selected as the synchronization source.
  • Page 26 Provisioning 150-359-100-01, Revision 01 Table 4. Clock Configuration Options (Cont.) Clock Field Option Descriptions Force BITS A (DS1 speed - default setting) BITS B (DS1 speed) Normal — normal operation Primary — use primary reference Secondary — use secondary reference Internal —...

  • Page 27: Setting Up A Cross-Connect Map

    150-359-100-01, Revision 01 Provisioning ETTING UP A ROSS ONNECT The HXU-359 is comprised of 7 four-input muxes which are connected to the DS1 channels. Four DS1 channels feed into each VT group mux. The outputs of the seven multiplexers are multiplexed into a single STS-1 stream. The HXU-359 supports two cross-connect mapping schemes, transparent and interleaved, that allow you to automatically configure 28 DS1 lines.
  • Page 28 Provisioning 150-359-100-01, Revision 01 To change the cross-connect map: All DS1 interfaces must be in OOS-A mode. If they are not, then: Select the Config>Services menu. ENTER Select a DS1 service port, then press . The configuration bar at the bottom of the screen should show your selection. Press the key to select the Mode field.
  • Page 29 150-359-100-01, Revision 01 Provisioning DS1/E1 Group Slot Group / Slot Port STS-1 * Not used for E1 mapping Figure 12. SONET Transparent Mapping HXU-359 List 1 October 27, 2000...
  • Page 30 Provisioning 150-359-100-01, Revision 01 DS1/E1 Group Slot Group / Slot Port STS-1 * Not used for E1 mapping Figure 13. M13 Interleaved Mapping October 27, 2000 HXU-359 List 1...

  • Page 31: Configuring The Ds1 Ports

    150-359-100-01, Revision 01 Provisioning DS1 P ONFIGURING THE ORTS Table 5 on page 23 gives a summary of all the configuration options available on the Services Configuration screen. Table 6 on page 23 describes the DS1 service modes. Configuration bar Figure 14.
  • Page 32 Provisioning 150-359-100-01, Revision 01 Choose the type of service (DS1). At this time only DS1 service is supported. Choose the type of line code (B8ZS or AMI). Chose the line buildout for the DS1 port (131, 262, 393, 524, or 655 ft.) Select the Virtual Tributary Group (VTG) 1 through 7 and the Virtual Tributary Slot (VTS) 1 through 4.
  • Page 33 150-359-100-01, Revision 01 Provisioning Table 5. Services Configuration Options Configuration Field Configuration Options Mode Out of Service-Maintenance (OOS-M) Out of Service-Administrative (OOS-A) In Service (IS) Type Code B8ZS, AMI Line Buildout (LBO) 131, 262, 393, 524, or 655 ft. Loopback (Lpbk) NONE FCLT (facility loopback) TERM (terminal loopback)

  • Page 34: Configuring The Sts-1 Port

    Provisioning 150-359-100-01, Revision 01 STS-1 P ONFIGURING THE Table 7 on page 25 gives a summary of all the configuration options for the transport configuration screen. Table 8 on page 25 describes the primary transport states. Figure 15. Config Menu: STS-1 Port To configure the STS-1 port, select the Config menu, choose Transport, and then perform the following tasks.

  • Page 35: Transport Configuration Options

    150-359-100-01, Revision 01 Provisioning Configure the line buildout to less than 250 feet or more than 250 feet (up to 455 feet maximum). When finished configuring the STS-1, set Primary State to IS to place it in service, and press ENTER Table 7.

  • Page 36: Other Configuration Options

    Provisioning 150-359-100-01, Revision 01 THER ONFIGURATION PTIONS There are other useful configuration options that are not essential to the basic configuration procedures. These include: • Changing the password • Downloading HXU-359 software updates • Restoring default configuration settings Setting Automatic Protection Switching Currently, the APS configuration screen has a fixed threshold setting and protection mode.

  • Page 37: Changing The Password

    150-359-100-01, Revision 01 Provisioning Changing the Password Figure 17. Config Menu: Password Select the Config menu, choose System, then Password. Type the old password. Type the new password. Retype the password to confirm it. To enable password verification when logging in through the craft port, set Security to Enabled.

  • Page 38: Downloading Software Updates

    Provisioning 150-359-100-01, Revision 01 Downloading Software Updates When performing a software download in a protected system, the software must be loaded to both multiplexer modules individually. Uploading a new version of multiplexer software assumes the following conditions: • a serial connection between the maintenance terminal and the HMU or •...
  • Page 39 150-359-100-01, Revision 01 Provisioning Select YES to proceed. The on-screen response should be: Formatting bank 1 (or 2) containing 2097152 bytes. After approximately 15 seconds, another message appears: Starting XModem Reception, please start transmission of .bin file. . . Using the HyperTerminal transfer utility (make sure the protocol is set to XMODEM), send the binary file.

  • Page 40: Restoring Defaults

    Provisioning 150-359-100-01, Revision 01 Restoring Defaults Figure 19. Config Menu: Restore Defaults To restore the configuration settings to their original factory settings, select Config, System, and then Set to Factory Defaults. The following message appears: The system configuration will be set to factory defaults. ENTER Press to restore the original factory settings or press...

  • Page 41: Performance Monitoring

    150-359-100-01, Revision 01 Performance Monitoring ERFORMANCE ONITORING The Main menu provides a status overview of system services. The Monitor and History menus provide essential data for monitoring the performance of the HXU-359. To view services status, press ENTER when Main is highlighted to view the Services Status screen (Figure 20).

  • Page 42: Monitor Menu

    Performance Monitoring 150-359-100-01, Revision 01 ONITOR The Monitor menu provides detailed alarm and error information in three subscreens: • Active alarms • Services (DS1 error reporting) • Transport (STS-1 error reporting) Active Alarms To view alarms, select Monitor, then Active Alarms. The View Active Alarms report appears.
  • Page 43 150-359-100-01, Revision 01 Performance Monitoring Table 9. Monitor Menu: View Active Alarms Report Alarm Field Description Field Values Last Occurrence (date mm/ dd/ yy hh:mm:ss (month, day, year, hour, minutes, and time alarm occurred) seconds) RpBy / SA (alarm CARD A or CARD B reported the alarm. reported by, service An asterisk identifies a service-affecting alarm.

  • Page 44: Ds1 Service Error Statistics

    Performance Monitoring 150-359-100-01, Revision 01 DS1 Service Error Statistics To view real time DS1 service error statistics, select Monitor, then Services. The screen displays counter values accumulated from the date and time indicated in the “Last Cleared” field. The counter runs continuously until cleared by pressing .

  • Page 45: Ds1 Error Definitions

    150-359-100-01, Revision 01 Performance Monitoring Table 10. DS1 Error Definitions Error Type Description ES-L Errored Seconds-Line—a count of seconds during which one or more of the following has occurred: BPVs, EXZs, and LOSs. For a B8ZS-coded signal, BPVs that are part of the zero substitution code are excluded. SES-L Severely Errored Seconds-Line—a count of the seconds during which 1544 or more BPVs or EXZs, or one or more LOS defects have occurred.

  • Page 46: Transport Error Statistics

    Performance Monitoring 150-359-100-01, Revision 01 Transport Error Statistics To view the performance statistics for the STS-1 interface, select Monitor, then Transport. You can choose to view performance monitoring from the near end or the far end. Figure 23 shows performance monitoring from the near end of the STS-1.

  • Page 47: Sts-1 Error Definitions-Section Layer Pm

    150-359-100-01, Revision 01 Performance Monitoring Figure 24. Monitor Menu: Far-end Transport The HXU-359 reports the following kinds of STS-1 performance monitoring information: • Section layer • Line layer • Path layer • Virtual Tributary layer Table 11. STS-1 Error Definitions—Section Layer PM Error Type Description ES-S...

  • Page 48: Sts-1 Error Definitions-Line Layer Pm

    Performance Monitoring 150-359-100-01, Revision 01 Table 12. STS-1 Error Definitions—Line Layer PM Error Type Description ES-L Errored Seconds—a count of the seconds during which at least one line layer Bit-interleaved Parity (BIP) was detected or an AIS defect (or a lower-layer, traffic-related, near-end defect) was present.

  • Page 49: History Menu

    150-359-100-01, Revision 01 Performance Monitoring Table 14. STS-1 Error Definitions—VT Path Layer PM Error Type Description ES-V Errored Seconds—a count of the seconds during which at least one VT path layer BIP error was detected or an AIS-V defect was present. SES-V Severely Errored Seconds—a count of the seconds during which 600 or more VT path layer BIP errors were detected or an AIS-V defect was present.

  • Page 50: Viewing History Screens

    Performance Monitoring 150-359-100-01, Revision 01 Viewing History Screens From the History menu, select 24-Hour History or 7-Day History. To view a Services history: Select Services. Type the DS1 port number. The 24-hour (or 7-day) history screen for the service appears. Figure 26 on page 41 is an example of a 7-day history screen for a DS1 port.
  • Page 51 150-359-100-01, Revision 01 Performance Monitoring Figure 25. History Menu: 24-Hour Transport - Near End, STS Path Figure 26. History Menu: 7-Day History for Service HXU-359 List 1 October 27, 2000...

  • Page 52: Viewing The Event Log

    Performance Monitoring 150-359-100-01, Revision 01 Valid “no error” entries are indicated by a zero. Invalid data (incomplete time period or change of date or time) is indicated by a dashed line. Performance history data can be erased by selecting Clear Perf.

  • Page 53: History Menu: Event Log Report

    150-359-100-01, Revision 01 Performance Monitoring Table 15. History Menu: Event Log Report Event Field Description Field Values Last Occurrence (date mm/ dd/ yy hh:mm:ss (month, day, year, hour, minutes, and time log occurred) seconds) RpBy / SA (log reported CARD A or CARD B reported the log. by, service affecting An asterisk identifies a service-affecting log.

  • Page 54: Testing

    Testing 150-359-100-01, Revision 01 ESTING The Test menu (Figure 28) offers the following troubleshooting selections: • Self Diagnostics • View Problem Report • Clear Problem Report • Protection Switch IAGNOSTICS Figure 28. Test Menu: Self Diagnostics To run self diagnostics, select the Test menu, then Self Diagnostics. Use SPACEBAR to cycle through the test options: •...

  • Page 55: Protection Switch

    150-359-100-01, Revision 01 Testing Press ENTER to select the test option. To view the problem report screen, select View Problem Report from the Test menu. Figure 29. Problem Report To clear the problem report screen, select Clear Problem Report from ENTER the Test menu.

  • Page 56: Loopbacks

    Testing 150-359-100-01, Revision 01 OOPBACKS Loopbacks can be used to verify that signals are being properly transmitted and received by sending a SONET or DS1 signal back to its origin. Refer to Figure 30 on page 47 Table 16 on page 48 for a description of system loopbacks.

  • Page 57: Sts-1 Loopbacks

    150-359-100-01, Revision 01 Testing STS-1 Loopbacks To set a loopback for the STS-1 interface: Choose Config, then Transport. SPACEBAR Set Primary State to OOS-M by pressing . Then press ENTER and use the key to select the Loopback. Press SPACEBAR to view the loopback options (NONE, TERM or ENTER FCLT), then press...

  • Page 58: System Loopback Definitions

    Testing 150-359-100-01, Revision 01 Table 16. System Loopback Definitions Test Point Loopback Definition (a) (b) Terminal loopback to the customer at the STS-1 line. Activate from the TLB3 Config > Transport menu. Facility loopback to the network at the STS-1 line. Activate from the Config > (a) (b) FLB3 Transport menu.

  • Page 59: Appendix A - Specifications

    150-359-100-01, Revision 01 Appendix A - Specifications A - S PPENDIX PECIFICATIONS STS-1 Interface (Multiplexer) Cable Line rate 51.840 megabits/s ± 20 ppm Line code B3ZS 75 Ω ±5 % Line impedance STS-1 span buildout 0 to 450 ft. (0 to 137.2 m) DS1 Internal Interface to Backplane Number of lines 28 DS1s...
  • Page 60 Appendix A - Specifications 150-359-100-01, Revision 01 Protection Switching Operation Automatic or manual ≤ 50 ms Switching time APS activated upon receiving BER at the STS-1 level, LOS, LOF, AIS-L, manual operation October 27, 2000 HXU-359 List 1...

  • Page 61: Appendix B - Functional Description

    150-359-100-01, Revision 01 Appendix B - Functional Description B - F PPENDIX UNCTIONAL ESCRIPTION Figure 31 shows a simplified block diagram of the HXU-359 List 1. Figure 31. Simplified Block Diagram In a normal system configuration, two HXU-359s are connected to the HMS-358 backplane.

  • Page 62: Appendixc - Product Support

    To return equipment to ADC Wireline Systems Division: Locate the number of the purchase order under which the equipment was purchased. You will need to provide this number to ADC Wireline Systems Division Customer Service to obtain a return authorization.
  • Page 63 Pack the equipment in a shipping carton. Write the ADC Wireline Systems Division address and the RMA number you received from Customer Service clearly on the outside of the carton and return to: ADC Wireline Systems Division 14352 Franklin Ave.

  • Page 64: Bar Code Label And Configuration Number

    Appendix C - Product Support 150-359-100-01, Revision 01 ABEL AND ONFIGURATION UMBER Figure 32 shows the location of the CLEI/ECI bar code label and the configuration number on the HXU-359. Table 17 on page 55 gives a brief description of what each label contains. Bar code label Configuration number Figure 32.
  • Page 65 150-359-100-01, Revision 01 Appendix C - Product Support Table 17. Bar Code and Configuration Number Name Description CLEI/ECI Bar Code Label Contains human-readable Common Language Equipment Identified (CLEI) code number and Equipment Catalog Item (ECI) bar code number. Configuration Number The configuration number identifies the version of the product.

  • Page 66: Appendix D - Glossary

    Appendix D - Glossary 150-359-100-01, Revision 01 D - G PPENDIX LOSSARY Alarm Indication Signal — An all ones signal generated to replace the normal traffic signal when it contains a defect condition. Used to prevent consequential downstream failures being declared or alarms being raised. Alarm Alternate Mark Inversion Automatic Protection Switching —...
  • Page 67 150-359-100-01, Revision 01 Appendix D - Glossary Digital Data Service Digital Signal Level 1 Digital Service Unit / Channel Service Unit — Converts digital DSU/CSU data frames Digital System Cross-connect frame DSX-1 Errored Seconds Extended Superframe Excessive Zeroes Facility Loopback FCLT Ground High Density Binary 3 —...
  • Page 68 Appendix D - Glossary 150-359-100-01, Revision 01 Network Element — Any device that is part of a SONET transmission path and serves one or more of the section, line, and path-terminating functions. Network Interface Network Interface Device Network Management and Administration Non-Return to Zero —...
  • Page 69 150-359-100-01, Revision 01 Appendix D - Glossary Remote Failure Indication — A failure is a defect that persists beyond the maximum time allocated to the transmission system protection mechanisms. The RFI is sent to the far end and will initiate a protection switch if this function has been enabled.
  • Page 70 Appendix D - Glossary 150-359-100-01, Revision 01 Virtual Tributary — A signal designed for transport and switching of sub-STS-1 payloads. VT Group — A 9 row by 12 column structure (108 bytes) that carries one or more VTs of the same size. An STS-1 payload can accommodate seven VT groups.

  • Page 71: Index

    150-359-100-01, Revision 01 Index NDEX line buildout ........23 Accessing the HXU interface ....9 line code ........23 Alarms, active ........32 loopbacks ....... 23 APS ............26 ports ..........21 Automatic Protection Switching ... 26 service error statistics ....34 service modes .......23 specifications ........49 Bar code ..........
  • Page 72 Index 150-359-100-01, Revision 01 virtual tributary layer ....37 Line buildout, DS1 ....... 23 Power requirements .......49 Line code, DS1 ........23 Primary states, transport ......25 Line layer ........37 Product information ......11 Log on ............. 8 Product support ........52 Loopbacks Protection switch ......45 –...
  • Page 73 150-359-100-01, Revision 01 Index Software updates, downloading .... 28 SONET ..........59 X-Connect ..........17 Specifications ........49 DS1 ..........49 STS-1 ........... 49 Standards compliance ......65 Status LEDs ..........4 STS-1 loopbacks ........47 port ..........24 primary states ....... 25 STS-1 specifications ......

  • Page 74: Certification And Warranty

    12-month warranty period per ADC's instructions and which product is confirmed by ADC not to comply with the foregoing warranty. ADC warrants that, for a period of 90 days from the date of purchase, the software furnished with its products will operate substantially in accordance with the ADC published specifications and documentation for such software.
  • Page 75 ODIFICATIONS Any changes or modifications made to this device that are not expressly approved by ADC DSL Systems, Inc. voids the user's warranty. All wiring external to the products should follow the provisions of the current edition of the National Electrical Code.
  • Page 76 ADC DSL Systems, Inc. 14402 Franklin Avenue Tustin, CA 92780-7013 Tel: 714.832.9922 Fax: 714.832.9924 Technical Assistance 800.638.0031 714.730.3222...

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