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4037424 Rev A
Cisco GS7000
DOCSIS Status Monitor Transponder
Installation and Operation Guide

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  • Page 1

    4037424 Rev A Cisco GS7000 DOCSIS Status Monitor Transponder Installation and Operation Guide...

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    For Your Safety Explanation of Warning and Caution Icons Avoid personal injury and product damage! Do not proceed beyond any symbol until you fully understand the indicated conditions. The following warning and caution icons alert you to important information about the safe operation of this product: You may find this symbol in the document that accompanies this product.

  • Page 4

    Copyright © 2011 Cisco and/or its affiliates. All rights reserved. Printed in the United States of America. Information in this publication is subject to change without notice. No part of this...

  • Page 5: Table Of Contents

    Contents Important Safety Instructions Chapter 1 Introduction Model GS7000 Node Description ..................2 Overview ........................2 Physical Description ....................2 Transponder Description ......................5 Overview ........................5 Parts List ........................6 Technical Support Contact Information ..............6 Connectors ........................6 Connector Summary ....................

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    Configuring the Sysname and Syslocation OIDs .............. 45 Configuration Pages ......................46 Configuration Data Page ..................46 GS7000 Configuration Data Page ................47 Status Page for Software Information ................. 51 Status Page for Connection Information ................52 Status Page for the SNMP Event Log .................. 53 HMS Fiber Node Data Page ....................

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    Contents MTA Status Page ........................70 MTA DHCP Page ........................71 MTA Quality of Service (QoS) Page ..................72 MTA Provisioning Page ......................73 MTA Event Log Page ......................74 Appendix A Technical Information Cable Pinout Details ......................76 Ethernet Cable ......................76 Upgrading the Transponder Firmware ................

  • Page 9: Important Safety Instructions

    Important Safety Instructions Important Safety Instructions Read and Retain Instructions Carefully read all safety and operating instructions before operating this equipment, and retain them for future reference. Follow Instructions and Heed Warnings Follow all operating and use instructions. Pay attention to all warnings and cautions in the operating instructions, as well as those that are affixed to this equipment.

  • Page 10

    Important Safety Instructions Only qualified service personnel are allowed to remove chassis covers and access  any of the components inside the chassis. Equipment Placement WARNING: Avoid personal injury and damage to this equipment. An unstable mounting surface may cause this equipment to fall. To protect against equipment damage or injury to personnel, comply with the following: Install this equipment in a restricted access location (access restricted to service...

  • Page 11

    Important Safety Instructions Connecting to Utility AC Power Important: If this equipment is a Class I equipment, it must be grounded. If this equipment plugs into an outlet, the outlet must be near this equipment,  and must be easily accessible. Connect this equipment only to the power sources that are identified on the ...

  • Page 12

    Important Safety Instructions To properly ground this equipment, follow these safety guidelines: Grounding-Type Plug - For a 3-terminal plug (one terminal on this plug is a  protective grounding pin), insert the plug into a grounded mains, 3-terminal outlet. Note: This plug fits only one way. If this plug cannot be fully inserted into the outlet, contact an electrician to replace the obsolete 3-terminal outlet.

  • Page 13

    Important Safety Instructions General Servicing Precautions WARNING: Avoid electric shock! Opening or removing this equipment’s cover may expose you to dangerous voltages. CAUTION: These servicing precautions are for the guidance of qualified service personnel only. To reduce the risk of electric shock, do not perform any servicing other than that contained in the operating instructions unless you are qualified to do so.

  • Page 14: Fuse Replacement

    Important Safety Instructions Avoid touching electronic components when installing a module.  Fuse Replacement To replace a fuse, comply with the following: Disconnect the power before changing fuses.  Identify and clear the condition that caused the original fuse failure. ...

  • Page 15

    Important Safety Instructions Modifications This equipment has been designed and tested to comply with applicable safety, laser safety, and EMC regulations, codes, and standards to ensure safe operation in its intended environment. Refer to this equipment's data sheet for details about regulatory compliance approvals.

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    Important Safety Instructions Industry Canada - Industrie Canadiene Statement This apparatus complies with Canadian ICES-003. Cet appareil est confome à la norme NMB-003 du Canada. CENELEC/CISPR Statement with Respect to Class A Information Technology Equipment This is a Class A equipment. In a domestic environment this equipment may cause radio interference in which case the user may be required to take adequate measures.

  • Page 17: Chapter 1 Introduction

    Chapter 1 Introduction This manual describes the installation and operation of the Cisco GS7000 DOCSIS Status Monitor Transponder module. In This Chapter  Model GS7000 Node Description ............2  Transponder Description ............... 5 4037424 Rev A...

  • Page 18: Model Gs7000 Node Description

    GainMaker Scaleable 4-Port Node Installation and Operation Guide, part number 4013584. Physical Description The Model GS7000 Node is the latest generation 1 GHz optical node platform which uses a completely new housing designed for optimal heat dissipation. The housing has a hinged lid to allow access to the internal electrical and optical components.

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    Model GS7000 Node Description 4037424 Rev A...

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    Chapter 1 Introduction The following illustration shows the Model GS7000 Node internal modules and components. This model is the 4-way forward segmentable node. The 2-way forward segmentable node has a different RF amplifier module. 4037424 Rev A...

  • Page 21: Transponder Description

    Transponder Description Transponder Description The Cisco GS7000 DOCSIS Status Monitor Transponder module provides the ability to manage fiber nodes and optical hubs through an existing DOCSIS cable modem infrastructure. Please see your Cisco representative for a complete listing of supported fiber nodes.

  • Page 22: Parts List

    Part Number Qty ASSY, MOD, 4X DOCSIS Status Monitor, GS7000. 4036793 Includes GS7000 Cable Kit Spare GS7000 RF Cable Kit (required for cable modem 4038028 downstream frequencies above 140 MHz) Note: This cable kit is not required for optical hub integrations.

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    Transponder Description The locations of these items are shown in the following illustrations. 4037424 Rev A...

  • Page 24: Connector Summary

    The locations of these items are shown in the preceding illustrations. If the transponder is to be used in a GS7000 node, use the 10 dB pad. If the transponder is to be used in a GS7000 Optical Hub, use the 0 dB pad.

  • Page 25: Chapter 2 Installation

    Chapter 2 Installation Cable modem infrastructures are likely to have unique characteristics. For this reason, we strongly recommend that you completely install one transponder and make it operational before deploying the entire system throughout your network. Installing the transponders and making them operational consists of the following steps, which are explained in detail in this chapter: Provisioning the transponders in the network ...

  • Page 26: Provisioning The Transponders In The Network

    Chapter 2 Installation Provisioning the Transponders in the Network Before installing the transponder, it must be provisioned in the network for the network to recognize, discover, and communicate with the transponder when it is powered up. The following graphic shows a typical network. Note: Some provisioning systems require that the transponder MAC address be added to the CMTS prior to installing the transponder to achieve full functionality.

  • Page 27: Your Network Information

    Time of Day Server IP Address DHCP Server IP Address Deployment of Cisco DOCSIS-based transponders is similar to provisioning standard subscriber cable modems and MTAs. However, there are certain exceptions owing to the transponder being a test device. For example, take care when provisioning that the transponder is not invoiced in the billing system or mistakenly blocked.

  • Page 28: Cable Modem Configuration File

    Chapter 2 Installation Cable Modem Configuration File Confirm that the cable modem configuration file has been successfully modified and tested prior to deploying transponders into the system in quantity. The transponder manages SNMP filters and trap destinations via the docsDevNmAccessTable. To ensure proper management of SNMP access, such as limiting access to certain SNMP managers or allowing the transponder to send SNMP/HMS traps, the docsDevNmAccessTable must be populated via the cable modem configuration file.

  • Page 29: Installing The Transponder

    Remove the transponder from the shipping package. Ensure that the correct pad for the desired application is installed in the pad socket. For GS7000 Node applications, verify the use of the 0 dB pad in the transponder pad socket, as shown below.

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    CAUTION: If a pad with a value less than 10 dB is used and the transponder is used in a GS7000 Node, there is a risk the output power of the transponder may be too high for the node transmitter.

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    Installing the Transponder Push the transponder down firmly onto the OIB until the transponder seats into position. Use the screws provided with the transponder to secure the transponder to the board. The screw locations are shown in the following illustration. Tighten screws to 25-30 in-lbs (2.8-3.4 Nm). If the downstream cable modem frequency is above 140 MHz, install one or both Forward RF cables (supplied with the transponder) as follows: 4037424 Rev A...

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    Chapter 2 Installation  If you are running RCVR 1 as a single (non-redundant) receiver, attach the RF1 cable to the Optical Receiver 1 "-20 dB test point." Route the cable appropriately within the node, as shown in the following illustration. 4037424 Rev A...

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    Installing the Transponder  If you are running RCVR 1 and RCVR 2 as a redundant pair, attach the RF1 cable to the Optical Receiver 1 "-20 dB test point" AND attach the RF2 cable to the Optical Receiver 2 "-20 dB test point." Route the cables appropriately as shown in the following illustration.

  • Page 34: Gs7000 Optical Hub Installation

    Remove the transponder from the shipping package. Ensure that the correct pad for the desired application is installed in the pad socket. For GS7000 Optical Hub applications, verify the use of the 10 dB pad in the transponder pad socket, as shown below.

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    Installing the Transponder Position the transponder so that the interface connector shown below aligns with the node interface connector. This connector is located on the optical interface board (OIB) in the lid of the node. The optical hub interface connector is shown below. 4037424 Rev A...

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    Chapter 2 Installation Push the transponder down firmly onto the OIB until the transponder seats into position. Use the screws provided with the transponder to secure the transponder to the board. The screw locations are shown in the following illustration. Tighten screws to 25-30 in-lbs (2.8-3.4 Nm). 4037424 Rev A...

  • Page 37: Configuring The Transponder Using The Sa-hms-fibernodegs7000 Mib

    FIBERNODEGS7000 MIB Before the transponder can monitor the node, it will need to be set up for how the node is configured. For the GS7000 Node, this can be accomplished by using either the SA-HMS-FIBERNODEGS7000-MIB or through the GS7000 Configuration Data page.

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    Chapter 2 Installation Component Description saFnOpticalReceiverLoPwrLimit Sets the minimum threshold level for the input signal to the A/B switch in mW. The default is (OID 1.3.6.1.4.1.1429.1.6.5.2.4.1.4) 0.50 and the range is 0.25-2.40. Notes:  When the saFnOpticalReceiverLoPwrLimit (OID 1.3.6.1.4.1.1429.1.6.5.2.4.1.4) is set, the LOLO alarm limits for the fnOpticalReceiverPower (OID 1.3.6.1.4.1.5591.1.5.5.1.2) is also set.

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    Configuring the Transponder Using the SA-HMS-FIBERNODEGS7000 MIB Component Description saFnOpticalReceiverHiPwrLimit Sets the maximum threshold level for input signal to the A/B switch in mW. The default is (OID 1.3.6.1.4.1.1429.1.6.5.2.4.1.3) 2.00 and the range is 0.25-2.40. Notes:  This parameter is not implemented within the transponder in versions earlier than 4.1.0.

  • Page 40: Downloading Module Firmware Using The Ctlp-download-mib

    Chapter 2 Installation Downloading Module Firmware Using the CTLP- DOWNLOAD-MIB With firmware version 4.1.0 and greater, the transponder has the ability to download firmware to Optical Amps and Optical Switches by using the CTLP-Download MIB (OID 1.3.6.1.4.1.2082.5.10.1). Note: While downloading firmware to the Optical Amps and Optical Switches, there will be no communication between the transponder and any Optical Amps or Optical Switches in the Hub or Node during the entire firmware download process, although they will continue to function correctly.

  • Page 41

    Downloading Module Firmware Using the CTLP-DOWNLOAD-MIB  downloadAdminStatus (OID 1.3.6.1.4.1.2082.5.10.1.1.4) – Begins the download to the module(s). – startDownload(1) – Begins the download to the modules with version checking enabled. If a module is running the same version of firmware that is being downloaded, it will not receive the firmware download.

  • Page 42: Checking The Leds

    Chapter 2 Installation Checking the LEDs The GS7000 DOCSIS Status Monitor transponder includes 6 green LEDs:    Online  Elink  Stat  On initial power up, the LEDs will remain off for several seconds after which time the DS, US, and Online LEDs will blink in unison six times.

  • Page 43: Led Status Summary

    Checking the LEDs LED Status Summary The following table summarizes the meaning of the status LEDs. Function State Meaning Power LED The transponder is switched off or is not functioning. (Note: this LED is not tied directly to line power) The transponder is on.

  • Page 45: Chapter 3 Provisioning The Snmp Manager

    Chapter 3 Provisioning the SNMP Manager This chapter explains how to provision the SNMP Manager for the Cisco GS7000 DOCSIS Status Monitor Transponder module. In This Chapter  MIB Files....................30  Acquiring the Transponders by the SNMP Manager ...... 33...

  • Page 46: Mib Files

    Chapter 3 Provisioning the SNMP Manager MIB Files This section lists the Management Information Base (MIB) files required for the SNMP Manager to collect data from the transponder. Management Information Base (MIB) Files Note: The files in this table can be found on the Society of Cable Telecommunications (SCTE) website www.scte.org.

  • Page 47: Management Information Base (mib) Files

    MIB Files Management Information Base (MIB) Files Note: The files in this table are provided by Cheetah Technologies or by Cisco. There are dependencies between MIB files, so be sure to compile them in the order listed below. Provider Title...

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    Chapter 3 Provisioning the SNMP Manager Title Title ENTITY-MIB UDP-MIB eSAFE-MIB USB-MIB 4037424 Rev A...

  • Page 49: Acquiring The Transponders By The Snmp Manager

    Acquiring the Transponders by the SNMP Manager Acquiring the Transponders by the SNMP Manager The transponder must first complete its initialization and registration from the Cable Modem configuration file. The transponder will then send a warm start trap to the SNMP Manager as specified in the cable modem configuration file.

  • Page 51: Chapter 4 Using The Craft Port

    Chapter 4 Using the Craft Port This chapter provides instructions for using the Craft (Ethernet) port on the GS7000 DOCSIS Status Monitor transponder. In This Chapter  Overview ....................36  Web Page Access ................... 37  Console Access ..................38...

  • Page 52: Overview

    Chapter 4 Using the Craft Port Overview The Craft port on the transponder is typically used as a local connection point, allowing the user to connect directly to the unit. However, the Craft port is a fully functional, standard Ethernet port, so it can also provide all of the functionality of any standard Ethernet connection.

  • Page 53: Web Page Access

    Web Page Access Web Page Access To access the transponder locally utilizing a web browser, follow the procedure outlined below. Connect a standard CAT5 Ethernet cable between the transponder and a laptop or similar device. Open the web browser. Enter the address value 192.168.100.1 into the browser address field, and then press Enter (or the appropriate button) to commence communications with the transponder.

  • Page 54: Console Access

    Chapter 4 Using the Craft Port Console Access Important: Console access is intended for use by factory trained technicians. It is not  recommended for use by technicians in the field. By default, Telnet access to the Ethernet port is enabled and the CM interface is ...

  • Page 55: Telnet Access Matrix

    Console Access Telnet Access Matrix The following table provides a matrix describing the settings of the different access options. Change these values as deemed necessary. telnetServerControl telnetIpStackInterfaces Result OID Value OID Value 0x00 Telnet access is disabled and both interfaces are disabled. 0x00 Telnet access is enabled and both interfaces are disabled.

  • Page 56

    Chapter 4 Using the Craft Port Note: If you have difficulty establishing communications with the transponder, try changing the laptop IP address value to 192.168.100.2 and its subnet mask value to 255.255.255.0. Press the Enter key. At the login prompt, enter the appropriate user name (the default is cheetah) and press the Enter key.

  • Page 57

    Console Access To switch to the hms section, type cd hms at the prompt, and then press Enter. The following screen appears. To display a listing of all of the available commands, type ? and then press Enter. The following screen appears. To display the proper syntax for a particular command, type the command followed by ?, and then press Enter.

  • Page 59: Chapter 5 Using The Web Interface

    Chapter 5 Using the Web Interface This chapter provides instructions for using the web interface for the GS7000 DOCSIS Status Monitor transponder. In This Chapter  Overview ....................44  Configuring the Sysname and Syslocation OIDs ......45  Configuration Pages ................46 ...

  • Page 60: Overview

    Chapter 5 Using the Web Interface Overview A web interface is available on the GS7000 DOCSIS Status Monitor transponder. The default port for HTTP traffic is port 80, but can be configured to use other ports via the Cheetah httpMgmt MIB. HTTP port configuration is available for the cable modem interface (via the cable modem IP address) and the CPE interface (via the Craft connection).

  • Page 61: Configuring The Sysname And Syslocation Oids

    Configuring the Sysname and Syslocation OIDs Configuring the Sysname and Syslocation OIDs It is also possible to configure the sysName (1.3.6.1.2.1.1.5.0) and sysLocation (1.3.6.1.2.1.1.6.0) OIDs from the web interface. This feature is password protected. There are both Admin and User user names and passwords. Both user names (Admin and User) have the authority to set sysName and sysLocation.

  • Page 62: Configuration Pages

    Configuration Pages The web interface includes two configuration pages: Configuration Data page  GS7000 Configuration Data page  To access either configuration page, click the Config link at the top of the page. Configuration Data Page If the Configuration Data page is not the active page, click the Configuration button in the left pane.

  • Page 63: Gs7000 Configuration Data Page

    GS7000 Configuration Data Page Before the transponder can monitor the node it will need to be set up for how the node is configured. For the GS7000 Node, this can be accomplished by using either the SA-HMS-FIBERNODEGS7000-MIB or through the GS7000 Configuration Data page.

  • Page 64

    Chapter 5 Using the Web Interface If the GS7000 Configuration Data page is not the active page, click the GS7000 button in the left pane. The GS7000 Configuration Data page appears as shown in the following example. Set the appropriate configuration options (see table below), and then click the Apply button.

  • Page 65

    Configuration Pages Component Description Power Supply Slots The maximum number of power supplies that can be installed in the node. Set the installed power supplies to Mount and the power supply, if any, that is not installed to Unmount. A/B Switch The Restore Time is the time in Seconds the A/B switch setting will be restored after power has been restored to the primary receiver.

  • Page 66

    Chapter 5 Using the Web Interface Component Description Transmitter Slots 1-4 The maximum number of transmitter slots or slots to the right (Slots 8-11) of the transponder in the node or optical hub. Set the active slots to Return Laser, Optical Amplifier, or Optical Switch as appropriate.

  • Page 67: Status Page For Software Information

    Status Page for Software Information Status Page for Software Information Select the Status tab to view details on the software running in the cable modem. The Status page for software information appears as shown in the following example. 4037424 Rev A...

  • Page 68: Status Page For Connection Information

    Chapter 5 Using the Web Interface Status Page for Connection Information Click the Connection button to see detailed status information related to the current connection to the CMTS. The Status page for connection information appears as shown in the following example. Notes: Downstream Power has 18 dB internal padding.

  • Page 69: Status Page For The Snmp Event Log

    Status Page for the SNMP Event Log Status Page for the SNMP Event Log Click the Event Log button to view recent event log entries. The Status page for the SNMP event log appears as shown in the following example. 4037424 Rev A...

  • Page 70: Hms Fiber Node Data Page

    Chapter 5 Using the Web Interface HMS Fiber Node Data Page Select the HMS tab to view HMS fiber node or optical hub data. The help button refers to a web page at the Cheetah Technologies Corporate website. The HMS Fiber Node Data page appears as shown in the following example. 4037424 Rev A...

  • Page 71

    HMS Fiber Node Data Page The HMS Optical Hub Data page appears as shown in the following example. Click on a link to view the parameters associated with that particular module, or click the View All link to view all of the parameters at once. The color of each module indicates the highest level of alarm present in that module at the time.

  • Page 72: Hsia Diagnostics Page: Ping Command

    Chapter 5 Using the Web Interface HSIA Diagnostics Page: Ping Command Select the HSIA tab to view high speed Internet access diagnostics. The HSIA Diagnostics page appears as shown in the following example. The HSIA-Ping Web Interface is accessed from the Connection form that is first displayed when the transponder is accessed.

  • Page 73: Controlling The Ping Test

    HSIA Diagnostics Page: Ping Command Input Parameters Description Timeout Range 1 to 60 seconds. Standard value is 5 seconds. Controlling the Ping Test The Ping Test is controlled by the following buttons. Button Description Start Test Starts the ping test. Each of the values provided in the input fields is evaluated for validity.

  • Page 74: Simultaneous Access

    Chapter 5 Using the Web Interface Copy is done via standard commands used on the system in question (e.g., under Windows, use Ctrl-C to copy.) The following example shows a typical set of Ping results. Pinging from Cable Modem: pings 25; size 64 bytes; timeout 5 seconds Pinging cms-pit.tollgrade.com ...

  • Page 75: Hsia Diagnostics Page: Traceroute Command

    HSIA Diagnostics Page: Traceroute Command HSIA Diagnostics Page: Traceroute Command The HSIA-Traceroute Web Interface is accessed from the Connection form that is first displayed when the transponder is accessed. Click the Traceroute button to view the traceroute diagnostics page. The page appears as shown in the following example.

  • Page 76: Controlling The Traceroute Test

    Chapter 5 Using the Web Interface Input Parameters Description Traceroute size Range is 0 to 1518. 0 is the standard size, resulting in packets of 40 bytes inclusive of all overhead. Port Port to use. Standard is 33434 as the initial port. Controlling the Traceroute Test The Traceroute Test is controlled by the following buttons.

  • Page 77: Simultaneous Access

    HSIA Diagnostics Page: Traceroute Command Use the mouse cursor to select the lines of interest  Copy is done via standard commands used on the system in question (e.g., under Windows, use Ctrl-C to copy). The following example shows a typical set of Traceroute results. Traceroute from Cable Modem: max ttl 30;...

  • Page 78

    Chapter 5 Using the Web Interface This product includes software developed by the University of California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

  • Page 79: Rf Constellation Page

    RF Constellation Page RF Constellation Page Select the RF tab to access the RF Constellation page. The RF Constellation page appears as shown in the following example. The QAM constellation map is useful in diagnosing line problems that might otherwise go undiagnosed. This section provides useful information on how to interpret the information presented in the QAM map.

  • Page 80: Downstream Data

    Chapter 5 Using the Web Interface Downstream Data Frequency — is the downstream frequency given in Hz.  Power — is the downstream power given in dBmV.  SNR / (RxMER) — this is the downstream signal quality. Modulation Error ...

  • Page 81

    RF Constellation Page Shape Focus Impairment Description Individual cells Coherent Individual cells of QAM Interference constellation contain diffused hollow circles or ―doughnuts‖. This indicates an interfering carrier and shows the effect of not allowing the carrier to ever reach the proper point in the target range.

  • Page 82

    Chapter 5 Using the Web Interface Sample QAM Constellation—Normal Centered Dots (Good Sound Quality) Sample QAM Constellation—Fuzzy (Low CNR and/or Low MER) 4037424 Rev A...

  • Page 83

    RF Constellation Page Sample QAM Constellation—"Doughnuts" (Coherent Interference) Sample QAM Constellation—Gaussian Noise 4037424 Rev A...

  • Page 84

    Chapter 5 Using the Web Interface Sample QAM Constellation—Circular Smear (Phase Noise) Sample QAM Constellation—Corners Squeezed to Center (Gain Compression) 4037424 Rev A...

  • Page 85

    RF Constellation Page Sample QAM Constellation—Rectangular vs. Square (I-Q Imbalance) Sample QAM Constellation—Twisted or Skewed (Quadrature Distortion) 4037424 Rev A...

  • Page 86: Mta Status Page

    Chapter 5 Using the Web Interface MTA Status Page The MTA Status page provides information related to the initialization status of the MTA. Select the MTA tab to view the MTA Status page via the Status, DHCP, QoS, Provisioning, and Event Log buttons. 4037424 Rev A...

  • Page 87: Mta Dhcp Page

    MTA DHCP Page MTA DHCP Page This page displays information about the MTA Dynamic Host Communications Protocol (DHCP) lease. Click the DHCP button to view the DHCP information. 4037424 Rev A...

  • Page 88: Mta Quality Of Service (qos) Page

    Chapter 5 Using the Web Interface MTA Quality of Service (QoS) Page This page displays the MTA Quality of Service (QoS) parameters. Click the QoS button to view the MTA QoS parameters. 4037424 Rev A...

  • Page 89: Mta Provisioning Page

    MTA Provisioning Page MTA Provisioning Page This page displays the MTA provisioning details. Click the Provisioning button to view MTA provisioning details. 4037424 Rev A...

  • Page 90: Mta Event Log Page

    Chapter 5 Using the Web Interface MTA Event Log Page This page displays the MTA Event Log. Click the Event Log button to view the MTA Event Log information. 4037424 Rev A...

  • Page 91: Appendix A Technical Information

    Appx auto letter Appendix A Technical Information Introduction This appendix contains tilt, forward and reverse equalizer charts and pad values and part numbers. In This Appendix  Cable Pinout Details ................76  Upgrading the Transponder Firmware ..........77 4037424 Rev A...

  • Page 92: Cable Pinout Details

    Appendix A Technical Information Cable Pinout Details Ethernet Cable Following is the pin number configuration chart for the Ethernet cable. Name Transmit + Transmit - Receive + Unused Unused Receive - Unused Unused 4037424 Rev A...

  • Page 93: Upgrading The Transponder Firmware

    Upgrading the Transponder Firmware Upgrading the Transponder Firmware The firmware in the GS7000 DOCSIS Status Monitor transponder can be upgraded in the same fashion as any other DOCSIS-compliant cable modem. Refer to the Cable Labs CM-SP-OSSIv2.0 and SP-BPI+ specifications for details on secure software download.

  • Page 95: Chapter 6 Customer Support Information

    Technical Support this product center. you have customer service questions...

  • Page 96: Support Telephone Numbers

    Fax: 852-2588-3139 countries & Australia  Email: saapac-support@cisco.com  Telephone: 11-55-08-9999 Brazil Brazil  Fax: 11-55-08-9998  Email: fattinl@cisco.com or ecavalhe@cisco.com  Mexico, Mexico For Technical Support, call: Central America, Telephone: 52-3515152599  Caribbean Fax: 52-3515152599  For Customer Service, call: Telephone: 52-55-50-81-8425 ...

  • Page 97: Glossary

    Glossary ampere. A unit of measure for electrical current. ac, AC alternating current. An electric current that reverses its direction at regularly recurring intervals. AC/RF alternating current radio frequency. automatic frequency control. An arrangement whereby the tuning of a circuit is automatically maintained within specified limits with respect to a reference frequency.

  • Page 98

    Glossary auxiliary. baseband The original band of frequencies occupied by the signal before it modulates the carrier frequency to form the transmitted signal. Characteristic of any network technology that uses a single carrier frequency and requires all stations attached to the network to participate in every transmission.

  • Page 99

    Glossary limiting and detection takes place. carrier-to-noise temperature ratio. CISC Complex Instruction Set Computer. A computer that uses many different types of instructions to conduct its operations, i.e., IBM PCs, Apple Macintosh‘s, IBM 370 mainframes. compression The non-linear change of gain at one level of a signal with respect to the change of gain at another level for the same signal.

  • Page 100

    Glossary dBuV decibels relative to 1 microvolt. decibels relative to 1 watt. directional coupler. dc, DC direct current. An electric current flowing in one direction only and substantially constant in value. deviation The peak difference between the instantaneous frequency of the modulated wave and the carrier frequency, in an FM system.

  • Page 101

    Glossary digital voltmeter. DWDM dense wave-division multiplexing. A method of placing multiple wavelengths of light into a single fiber that yields higher bandwidth capacity. Dense WDM indicates close spacing and more than 4 to 8 wavelengths. European Community. EEPROM electrically erasable programmable read-only memory. electromagnetic compatibility.

  • Page 102

    Glossary forward configuration module. field-effect transistor. A transistor in which the conduction is due entirely to the flow of majority carriers through a conduction channel controlled by an electric field arising from a voltage applied between the gate and source electrodes. frequency modulation.

  • Page 103

    Glossary input/output. integrated circuit. International Electro-technical Commission. intermediate frequency. The common frequency which is mixed with the frequency of a local oscillator to produce the outgoing radio frequency (RF) signal. in-lb inch-pound. A measure of torque defined by the application of one pound of force on a lever at a point on the lever that is one inch from the pivot point.

  • Page 104

    Glossary Newton meter. A measure of torque defined by the application of one Newton of force on a lever at a point on the lever that is one meter from the pivot point. (1 Nm = 0.737561 ft-lb) optical interface board. printed circuit board.

  • Page 105

    Glossary radio frequency. The frequency in the portion of the electromagnetic spectrum that is above the audio frequencies and below the infrared frequencies, used in radio transmission systems. radio frequency interference. return material authorization. A form used to return products. receive or receiver.

  • Page 106

    Glossary torque A force that produces rotation or torsion. Usually expressed in lb-ft (pound-feet) or N-m (Newton-meters). The application of one pound of force on a lever at a point on the lever that is one foot from the pivot point would produce 1 lb-ft of torque. transmit or transmitter.

  • Page 107: Index

    Index A • 81 dB • 83 ac, AC • 81 dBc • 83 AC/RF • 81 dBi • 83 Acquiring the Transponders by the SNMP dBm • 83 Manager • 33 dBmV • 83 AFC • 81 dBuV • 84 AGC •...

  • Page 108

    Support Telephone Numbers • 80 Mbps • 87 synchronous transmission • 89 MIB Files • 30 Model GS7000 Node Description • 2 MTA DHCP Page • 71 torque • 90 MTA Event Log Page • 74 Transponder Description • 5 MTA Provisioning Page •...

  • Page 109

    Index Your Network Information • 11 4037424 Rev A...

  • Page 110

    This document includes various trademarks of Cisco Systems, Inc. Please see the Notices section of this document for a list of the Cisco Systems, Inc. trademarks used in this document. Product and service availability are subject to change without notice.

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