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Cisco GoQAM Installation And Operation Manual

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GoQAM Modulator RF Output
and IF Output Hardware
Installation and Operation Guide

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  • Page 1

    GoQAM Modulator RF Output and IF Output Hardware Installation and Operation Guide...

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    Please Read Important Please read this entire guide. If this guide provides installation or operation instructions, give particular attention to all safety statements included in this guide.

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    Copyright © 2007, 2012 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

    Provision GoQAMs on the DNCS ..................46 Chapter 4 Provision the IF GoQAM Understand the IF GoQAM GUIs ..................54 Understand the Set Up IF GoQAM GUI ................55 Understand the Set Up UpConverter GUI ................. 63 Provision an IF GoQAM on the DNCS ................71...

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    Monitor Setup Options ......................90 Change an RF Carrier Frequency ..................98 Resetting the GoQAM ......................99 Chapter 6 Operating the IF GoQAM Understand the Boot Process ..................... 102 Change the Boot Mode ......................105 Read the Default Status Screen ..................107 Use the Front Panel Keys to Change Configuration Settings ........

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    Contents Appendix A Technical Specifications Installation and Operation Requirements ................ 150 IF Specifications........................152 RF Specifications ........................153 ASI Input Specifications ...................... 154 Modulation Specifications ....................155 Digital I/O Performance Specifications ................156 Connector Type ........................157 Factory Default Settings ...................... 158 Standard Output Frequencies ....................

  • Page 9: Safety Precautions

    Safety Precautions Safety Precautions Read, Retain, and Follow These Instructions Carefully read all safety and operating instructions before operating this product. Follow all operating instructions that accompany this product. Retain the instructions for future use. Give particular attention to all safety precautions. Warning and Caution Icons WARNING: Avoid personal injury and product damage! Do not proceed beyond any icon...

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    Safety Precautions Servicing WARNING: Avoid electric shock! Opening or removing the cover may expose you to dangerous voltages. Do not open the cover of this product and attempt service unless instructed to do so in the operating instructions. Refer all servicing to qualified personnel only. Cleaning, Water, Moisture, Open Flame To protect this product against damage from moisture and open flames, do the following: Before cleaning, unplug this product from the AC outlet.

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    Safety Precautions When moving a cart that contains this product, check for any of the following possible hazards: Move the cart slowly and carefully. If the cart does not move easily, this condition may  indicate obstructions or cables that you may need to disconnect before moving this cart to another location.

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    Safety Precautions Grounding Terminal If this product is equipped with an external grounding terminal, attach one end of an 18- gauge wire (or larger) to the grounding terminal; then, attach the other end of the wire to an earth ground, such as an equipment rack that is grounded. 20050727 Headend/Rack 4004834 Rev D...

  • Page 13: Fcc Compliance

    FCC Compliance FCC Compliance Where this equipment is subject to U.S.A. FCC and/or Industry Canada rules, the following statements apply. United States FCC Compliance This device has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules.

  • Page 15: About This Guide

    The RF GoQAM is a software-modified Model D9479-1 Gigabit QAM (GQAM) Modulator. The Model D9479-3 IF GoQAM is similar to the RF GoQAM, but has IF outputs in lieu of RF outputs, as well as a different back panel. Both are integral components of Cisco Overlay solution.

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    This guide is written for cable network system administrators and engineers, operators of the Overlay DNCS, call center personnel, and system operators who are responsible for installing, operating, maintaining, and troubleshooting the GoQAM. Document Version This is the fourth release of this document. In addition to minor text and graphic changes, the following table provides the technical changes to this document.

  • Page 17: Chapter 1 Introducing The Goqam

    GoQAM processes and outputs data, and provides illustrations and descriptions of the front and back panel components for both the IF and the RF versions of the GoQAM. Important! You must be operating SR 2.5/SR 3.5 (or later) to install and provision (configure) a GoQAM on your system.

  • Page 18: System Overview

    System Overview Diagram of Cisco’s Overlay Solution The GoQAM is an integral component of the Overlay solution. The Overlay solution uses Digital Broadband Delivery System (DBDS) technology to create a network in which different conditional access (CA) systems can coexist in a coherent manner.

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    Note: The MPS is being replaced by the SmartStream Encryptor Modulator (SEM). As with the MPS, a number of different options are available for interfacing Overlay technology with the SEM. Specific details can be obtained by contacting Cisco Services. 4004834 Rev D...

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    Chapter 1 Introducing the GoQAM Features The GoQAM provides many new digital broadcast features and innovations for your system. The following table describes these features and innovations. Feature Function DVB ASI Input pairs Supports a maximum ASI data rate of 216 Mbps (MPEG ...

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    System Overview Feature Function RF Version: Provides a separate physical connector for each QAM output  (up to 2) 64/256 QAM RF Output (2) Allows independent level control for each QAM signal   Allows an adjustable output center frequency range of 91 MHz to 869 MHz Provides a switched filter bank for superior broadband ...

  • Page 22: Goqam Input Pairs

    The following illustration depicts the fixed input and output combinations for an RF GoQAM. Note: For the RF GoQAM, input pair 1 can only be mapped to RF OUT 1, and input pair 2 can only be mapped to RF OUT 3.

  • Page 23: Input/output Process

    The following diagram illustrates the stages of the input/output (I/O) process for the RF GoQAM. Note: The stage numbers correspond with the following table. Input/Output Stage/Description Table The following table describes the stages of the I/O process of the RF GoQAM. The numbers correspond to the above I/O diagram. Stage Description A pair of transport streams (a clear version and a third-party encrypted version of the same stream) are input to the modulator.

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    The following diagram illustrates the stages of the input/output (I/O) process for the IF GoQAM. Note: The stage numbers correspond with the following table. Input/Output Stage/Description Table The following table describes the stages of the I/O process of the IF GoQAM. The numbers correspond to the above I/O diagram. Stage Description A pair of transport streams (a clear version and a third-party encrypted version of the same stream) are input to the GoQAM.

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    Input/Output Process Stage Description The clear and encrypted streams are synchronized. An overlay output stream is created by muxing (multiplexing) the clear, S-A encrypted, and third-party encrypted packets. The output stream is modulated at 64 QAM or 256 QAM and sent out one of the two IF ports.

  • Page 26: Front Panel Overview

    Chapter 1 Introducing the GoQAM Front Panel Overview Front Panel Diagram This illustration shows the front panel components of each type of GoQAM. The following table describes the front panel components. Item Component Description MAJOR ALARM This LED is red and lights for a major alarm condition.

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    IF output (27 dBmV to 37 dBmV). The Continuous Wave (CW) key selects the Continuous Wave Screen on which you can set the GoQAM modulator to output either a modulated carrier or a continuous carrier for each of the RF carriers.

  • Page 28: Back Panel Overview

    This illustration shows the back panel components for each type of GoQAM. Back Panel Diagram Back Panel Components The following table describes the back panel components. Back Panel Components Important: The cooling fans for the GoQAM are mounted on the side panel. Item Component Description Power Switch...

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    CRAFT PORT For Cisco diagnostic use only 10/100BaseT port Ethernet port shares data with DNCS Ethernet hub Ground screw for grounding the GoQAM Back Panel Indicator Lights The following illustration and table show the back panel indicator lights. Item Indicator Light...

  • Page 31: Chapter 2 Installing The Goqam

    Chapter 2 Installing the GoQAM Introduction This chapter describes how to install the GoQAM into a rack and where to connect the GoQAM to the other components within the Overlay environment. The connections used for the GoQAM vary according to its use in your system.

  • Page 32: Installation Process Summary

    Installation Process Summary Before You Begin This process assumes that you have already installed the GoQAM software on the DNCS. Refer to the release notes and installation instructions for your GoQAM release for detailed instructions. Also be sure that you have access to the Digital Network Control System Online Help for your system release before installing the GoQAM.

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    Define the MPEG sources and Provision the RF GoQAM (on  provision the GoQAM using DNCS page 37) Element Provisioning according to Provision the IF GoQAM (on page  your network wiring diagram. Digital Network Control System  Online Help...

  • Page 34: Unpack And Inspect The Goqam

    Carrier’s Responsibility Cisco thoroughly inspects and carefully packs all products before shipment. The carrier is responsible for safe shipping and delivery. If there are any missing parts or if there is damage to the product contact Cisco  Services. Retain all boxes for future equipment shipping needs. The boxes are specifically ...

  • Page 35: Record The Mac Address

    Record the MAC Address Record the MAC Address This section contains instructions for recording the MAC address as part of the installation process. Recording the MAC Address Unpack and inspect the modulator. Locate the label containing the MAC addresses on the underside of the chassis. Important! The GbE MAC addresses are typically the MAC address of the modulator plus 1 (one).

  • Page 36: Stacking Guidelines

    GoQAM must never exceed 122°F (50°C). Each GoQAM draws up to 151 W of input power and a total of 515 BTU/hr. For a full rack with 32 units, the sum total is 4832 W per rack, or 16,480 BTU/hr. You should make your HVAC considerations based on these calculations.

  • Page 37

    Rack installations that have the outer wall or side of the rack in place on the exhaust side of the GoQAM should note that without sufficient airflow through the rack, the heated exhaust air may re-circulate back to the input side of the GoQAM. Depending on the situation, this re-circulation air could eventually exceed the specified 122°F...

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    Chapter 2 Installing the GoQAM The 4 RU space at the top is covered with a closed panel. This option uses an exhaust fan located on top of the rack to draw the heated air upward and out of the rack. The 4 RU space at the top allows the ventilation space needed for the exhaust fan to operate efficiently.

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    Stacking Guidelines Option 2 – Using a Rack With Floor Plenum Forced Air Cooling This stacking option also uses a 40 RU configuration containing up to 32 GoQAMs. In Option 2, however, the lower 4 RU space is covered with a solid panel instead of a vented one.

  • Page 40: Install The Modulator Into A Rack

    Chapter 2 Installing the GoQAM Install the Modulator Into a Rack The front bezel of the GoQAM mounts to the front of the equipment rack. The GoQAM fits into an EIA RS-310 rack mount. Important! You must read the preceding section, Stacking Guidelines (on page 20), before installing the modulators into the rack.

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    Use caution when installing wiring and racks to avoid obstruction of air flow. The obstruction can occur at the side air vents of the GoQAM or the vent fans at the GoQAM side panel. Important! You must use the supplied notched rack mounts (Cisco part numbers 734845 and 734846) to mount this modulator into the rack.

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    Do not tangle or strain interconnecting cables. Use caution when installing wiring and racks to avoid obstruction of airflow into the side air vents of the GoQAM or out of the vent fans on the side of the GoQAM. IMPORTANT: You must use the supplied notched rack mounts to provide additional support and to allow correct air circulation through the unit.

  • Page 43: Connect Power Sources

    The 48 V DC GoQAM must be connected to an earth ground. Place a ground wire onto the ground lug (marked GND) on back of the GoQAM; then, use your fingers to tighten the ground lug to secure the ground wire.

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    Chapter 2 Installing the GoQAM Insert the terminal block connector into the terminal block on the back panel of the 48 V DC GoQAM. Keep the DC power source set to the Off position until you are ready to power on the modulator.

  • Page 45: Connect The Dvb Asi Input Ports

    MPEG-2 transport stream (TS) data at a maximum rate of 216 Mbps. Location of DVB ASI Input Ports The following illustration shows an example of an IF GoQAM connected to DVB ASI sources. 4004834 Rev D...

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    Chapter 2 Installing the GoQAM Connecting the DVB ASI Ports Refer to your network wiring diagram to cable the GoQAM in accordance with your bandwidth allocation plan. Follow these steps to connect each of the DVB ASI Input ports. Locate the output (DHEI or DVB ASI) on the back of an output device.

  • Page 47: Connect The 10/100baset Ethernet Port

    Connect the 10/100BaseT Ethernet Port Description The GoQAM shares data with the DNCS through an ATM switch, a router, an Ethernet hub, and an Ethernet port. An Ethernet connection enables the DNCS to perform software downloads, provision the GoQAM, set up broadcast sessions, monitor alarms, and check system performance.

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    Note: Use a screened or shielded cable to connect the GoQAM to the 10/100BaseT Ethernet hub. Your next step is to provision the GoQAM on the DNCS. See Provision the RF GoQAM (on page 37) or Provision the IF GoQAM (on page 53), for further details about provisioning the GoQAM on the DNCS.

  • Page 49: Connect The Rf Out Or If Out Ports

    Connect the RF OUT or IF OUT Ports The back panel of the GoQAM contains ports that are labeled either RF OUT or IF OUT depending on the model of GoQAM you are using. The RF OUT or IF OUT ports of the GoQAM should be connected to a system of combiners, through the cable system, and eventually to subscribers’...

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    Locate the RF OUT or IF OUT ports on the back panel of the GoQAM. Connect one end of a 75 Ω coaxial cable to each port to be used for the GoQAM. Verify that you have established the correct output level for the RF OUT or the IF...

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    Connect the RF OUT or IF OUT Ports Choose one of the following options:  For the RF GoQAM, connect the other end of each 75 Ω coaxial cable to the distribution plant.  For the IF GoQAM, connect the other end of each 75 Ω coaxial cable to an upconverter.

  • Page 53: Chapter 3 Provision The Rf Goqam

    DNCS recognizes it and so that it operates properly. Important! Your system must be operating SR 2.4/SR 3.4 (or later) to use a GoQAM on your system. You must also have the Overlay feature enabled. Note: See Technical Specifications (on page 149) for the technical...

  • Page 54: Understand The Rf Goqam Guis

    Important! Actual GUIs may differ slightly from the GUIs presented in this guide. Understanding the RF GoQAM GUIs Use the DNCS RF GoQAM GUIs to provision the RF GoQAM on the DNCS. The main GUI is the Set Up RF GoQAM window. The Set Up RF GoQAM window...

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    Understand the RF GoQAM GUIs Select File > New > GOQAM > RF GOQAM. The Set Up RF GoQAM window opens with the Basic Parameters tab to the forefront and displays the Basic Parameters fields as shown in the following example.

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    RF output port. The default is all hubs under the defined headend RF Out Parameters The following table lists the RF OUT port (1 – 2) field descriptions. Note: Overlay technology uses only two of the RF OUT ports on the RF GoQAM. Field Description Modulation Displays the modulation format of the individual carriers The default is 64-QAM for ITU J.83 Annex B.

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    Function Keys The following function keys appear on the Set Up GoQAM window. Function Save Saves changes to settings and closes the Set Up GoQAM window...

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    IP address and receive configuration parameters, application downloads, and provisioning from the network BOOTP server. The DNCS, which is a BOOTP server, uses a BOOTP reply to assign an IP address to the GoQAM if the unit is provisioned in the DNCS database.

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    Understand the RF GoQAM GUIs The following diagram shows an example of the File Selection Dialog window. Function Keys The following function keys appear in the File Selection Dialog screen. Function Places the selected file name into the Configuration File Name field...

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    Chapter 3 Provision the RF GoQAM Understanding Connectivity The Connectivity fields of the Set Up RF GoQAM window allow you to specify the input device connected to each of the Input ports on the GoQAM. Note: When you first provision the RF GoQAM, the Connectivity fields are accessible only after you click Apply or Save from the Set Up RF GOQAM window.

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    Identifies the type of input device, such as an Automux or IRT to which the RF GoQAM is connected Device Name Identifies the name of the input device to which the RF GoQAM is connected Port Number Identifies the port number of the device that is connected to the RF GoQAM.

  • Page 62: Provision Goqams On The Dncs

     Provisioning an RF GoQAM on the DNCS Follow these steps to provision a new RF GoQAM or to adjust the settings for an existing RF GoQAM on the DNCS. Verify that you have provisioned the RF GoQAM in accordance with your network wiring diagram and the input/output specifications for the RF GoQAM (see Technical Specifications (on page 149)) and other network devices.

  • Page 63

    To provision a new RF GoQAM, go to step 5.  To change the settings for an existing RF GoQAM, go to step 7. From the QAM List select File >New > GOQAM > RF GOQAM. The Set Up RF GOQAM window opens. 4004834 Rev D...

  • Page 64

    Important: Be sure to associate the port with a hub by clicking the Port to Hubs button to open the RF Output Port window. From the QAM List, highlight an RF GoQAM in the list, select File > Open. The Set Up RF GOQAM window opens with the Basic Parameters tab to the forefront displaying the Basic Parameters configuration fields.

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    13 Choose one of the following options:  To provision the connectivity settings for a new RF GoQAM, go to step 14.  To adjust the connectivity settings for an existing RF GoQAM, go to step 15. 4004834 Rev D...

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    16 Select the RF GoQAM input port you want to connect to the network. 17 Select the device you want to connect to the RF GoQAM in the Connect To fields of the Connectivity tab; then, click Save. The QAM List updates to include the RF GoQAM.

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    Provision GoQAMs on the DNCS 4004834 Rev D...

  • Page 69: Chapter 4 Provision The If Goqam

    DNCS recognizes it and so that it operates properly. Important: Your system must be operating SR 2.4/SR 3.4 (or later) to use a GoQAM on your system. You must also have the Overlay feature enabled. Note: See Technical Specifications (on page 149) for the technical...

  • Page 70: Understand The If Goqam Guis

    Displays the selected file Understanding the IF GoQAM GUIs Use the DNCS IF GoQAM GUIs to provision the IF GoQAM on the DNCS. The main GUIs are the Set Up IF GOQAM window, the UpConverter List window, and the Set Up UpConverter window.

  • Page 71: Understand The Set Up If Goqam Gui

    This section provides descriptions of the fields in the Set Up IF GoQAM GUI. Understanding Basic Parameters The Basic Parameters fields allow you to identify the IF GoQAM, assign it to a headend, and specify the QAM modulation type. If you want to view the Basic Parameters fields while reading this section, follow these steps to examine the Set Up IF GOQAM window.

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    ITU J.83 Annex C DAVIC/DVB  (6 MHz) Note: The default value is ITU J.83 Annex B (6 MHz). Administrative State Specifies whether the GoQAM is active within the system. The values are: Offline – Default  Online – Active ...

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    Understand the Set Up IF GoQAM GUI IF OUT Parameters The following table lists the IF OUT port (1 – 2) field descriptions. Note: Overlay technology uses only two of the IF OUT ports on the IF GoQAM. Field Description...

  • Page 74

    Opens the DNCS Online Help Understanding Advanced Parameters The Advanced Parameters fields of the Set Up IF GOQAM window allow you to select the configuration file. To view the Advanced Parameters fields while reading this section, click the Advanced Parameters tab in the Set Up IF GOQAM window.

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    BOOTP server. The DNCS, which is a BOOTP server, uses a BOOTP reply to assign an IP address to the GoQAM if the unit is provisioned in the DNCS database. The configuration file selected in the File Selection Dialog window is included in the BOOTP reply.

  • Page 76

    Chapter 4 Provision the IF GoQAM The following diagram shows an example of the File Selection Dialog window. File Selection Dialog Screen The following table lists field descriptions on the File Selection Dialog screen. Field Description Filter Displays the path and filename wildcard used by the system to search for files.

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    Understanding Connectivity The Connectivity fields of the Set Up GoQAM window allow you to specify the input device connected to each of the input ports on the GoQAM. Note: When you first provision the GoQAM, the Connectivity fields are accessible only after you click Apply or Save from the Set Up GoQAM window.

  • Page 78

    Chapter 4 Provision the IF GoQAM Field Description Show TSIDs/IPs Displays the Transport Stream (TS) IDs and Internet Protocol addresses (IPs) Show (slot, port) Displays the slot and port of the card connected to the GoQAM Legend Displays a group of icons that represent network elements...

  • Page 79: Understand The Set Up Upconverter Gui

    RF output and connectivity parameters for the upconverter. Important! You must connect an upconverter to the GoQAM in order to use the procedures in this section. Understanding the Set Up UpConverter GUI Follow these steps to open the UpConverter List window.

  • Page 80

    Chapter 4 Provision the IF GoQAM From the UpConverter List window, select File > New. The Set Up UpConverter window opens with Basic Parameters tab to the forefront. Important! For a description of the fields in the Set Up UpConverter window, go to Set Up UpConverter Basic Parameters, later in this section.

  • Page 81

    The Set Up UpConverter window opens with Basic Parameters tab to the forefront. Note: The IF GoQAM transmits a 44.00 MHz IF stream to an upconverter. The upconverter converts the 44.00 MHZ IF stream to RF output at a specific RF output port for transmission on the network.

  • Page 82

    Chapter 4 Provision the IF GoQAM To add an RF Out Port, click Add. An RF Output Port window similar to the following opens. Important! For a description of the fields in the RF Output Port window, go to the RF Output Ports section in Set Up UpConverter Basic Parameters (on page 68).

  • Page 83

    Understand the Set Up UpConverter GUI 11 To view or edit an RF Output Port, highlight a row and click Open. An RF Output port similar to the following opens. Note: For a description of the fields in the RF Output Port window, go to the RF Output Ports section in Set Up UpConverter Basic Parameters (on page 68).

  • Page 84: Set Up Upconverter Basic Parameters

    Chapter 4 Provision the IF GoQAM Set Up UpConverter Basic Parameters The UpConverter Name is the name assigned to the upconverter. Ports The following table lists the Set Up UpConverter Ports field descriptions. Field Description Reserved TSID Range Displays the available range of transport stream 50 –...

  • Page 85

    Understanding Set Up UpConverter Connectivity The Connectivity fields of the Set Up UpConverter window allow you to specify the IF GoQAM connected to each of the Input ports on the upconverter. Note: When you first provision the upconverter, the Connectivity fields only appear after you click Apply or Save from the Set Up UpConverter window.

  • Page 86

    Chapter 4 Provision the IF GoQAM Set Up UpConverter Connectivity The following table lists the Set Up UpConverter Connectivity field descriptions. Field Description UpConverter Name Identifies the name of the selected UpConverter and allows you to select the Input Port...

  • Page 87: Provision An If Goqam On The Dncs

     Provisioning an IF GoQAM on the DNCS Follow these steps to provision a new IF GoQAM or to adjust the settings for an existing IF GoQAM on the DNCS. Verify that you have provisioned the IF GoQAM in accordance with your network wiring diagram and the input/output specifications for the IF GoQAM (Appendix A) and other network devices.

  • Page 88

    To provision a new IF GoQAM, go to step 5.  To change the settings for an existing IF GoQAM, go to step 7. Select File > New > GOQAM > IF GOQAM. The Set UP IF GOQAM window opens. 4004834 Rev D...

  • Page 89

    Parameters tab in the Set Up IF GoQAM window, then go to step 9. From the QAM List, highlight a GoQAM in the list, select File > Open. The Set Up IF GoQAM window opens with the Basic Parameters tab to the forefront displaying the Basic Parameters configuration fields.

  • Page 90

    Chapter 4 Provision the IF GoQAM Click the Advanced Parameters tab. The Set Up IF GOQAM window opens with the Advanced Parameters tab to the forefront displaying the Advanced Parameters configuration fields. 10 Enter or change the desired information in the Advanced Parameters fields.

  • Page 91

    Provision an IF GoQAM on the DNCS 13 Choose one of the following options:  To provision the connectivity settings for a new IF GoQAM, go to step 14.  To adjust the connectivity settings for an existing IF GoQAM, go to step 15.

  • Page 92

    16 Select the IF GoQAM input port you want to connect to the network. 17 Select the device you want to connect to the IF GoQAM in the Connect To fields of the Connectivity tab; then, click Save. The QAM List is updated to include the IF GoQAM.

  • Page 93: Chapter 5 Operating The Rf Modulator

    Chapter 5 Operating the RF Modulator Introduction This chapter contains procedures for viewing and changing GoQAM RF settings, descriptions of screens and messages, and instructions for performing routine maintenance. Note: Actual screen settings may differ slightly from the examples presented in this guide.

  • Page 94: Understand The Boot Process

    The DNCS sends the TFTP goqam.config file. If the files in the goqam.config file are different from those stored in the GoQAM, then the GoQAM requests the download files, which consist of the following: ...

  • Page 95

    If BOOTP completes successfully, the IP address boot screen appears. Note: Although it is not a typical setting, if the GoQAM is set to run in a Standalone mode (boot mode 0), the following Standalone mode boot screen appears instead of the “Starting GoQAM”...

  • Page 96

    LCD screen during code download or during a download attempt. The following table represents the sequence of events that occur during a complete boot code, application code, and RF module code upgrade. Code Type Front Panel Screen Message GoQAM Boot Initial Boot vv.vv.vv MM/DD/YY GoQAM Boot xxx.xxx.xxx.xxx...

  • Page 97: Change The Boot Mode

    If used when the GoQAM is connected to the network and the network connection is lost or reset, the GoQAM must be rebooted. This mode attempts each BOOTP and TFTP step only once. If a failure occurs during any step, the step is skipped;...

  • Page 98

    Chapter 5 Operating the RF Modulator Changing the Boot Mode Connect a diagnostic PC to the CRAFT PORT on the back panel of the GoQAM. Power on the diagnostic PC and activate a Procomm or Hyperterminal window using the following modem connection settings: ...

  • Page 99: Read The Default Status Screen

    The following table describes the information displayed on the default status screen. Display Function Current RF Channel output selected. The CH number corresponds to the channel number Note: The GoQAM uses only CH1 and CH2. 285.00 MHz Established RF frequency setting for the selected RF modulator (91 MHz to 869 MHz) 50.0 dBmV...

  • Page 100: Use The Front Panel Keys To Change Configuration Settings

    Use the Front Panel Keys to Change Configuration Settings The front panel of the GoQAM contains an alphanumeric LCD screen and three alarm indicators. There are also several keys on the front panel to allow you to change parameters. See the Front Panel Overview (on page 10) section for more information on the front panel components.

  • Page 101

    Use the Front Panel Keys to Change Configuration Settings Accessing the GoQAM Menus You can access GoQAM menus and screens by pressing the FREQ, LEVEL, CW, and OPTIONS keys on the front panel. Pressing the LEVEL, OPTIONS, and RF SEL keys repeatedly scrolls through their respective sequential menus.

  • Page 102: Adjust The Frequencies Of A Selected Carrier

    RF output group and adjust the individual carrier (CH) output frequency. Important! Frequencies set from the front panel of the GoQAM are not recorded by the DNCS. At the next GoQAM restart, the frequencies are reset to the values stored in the DNCS. Adjusting the Output Frequency Follow these steps to adjust the output frequency.

  • Page 103: Adjust The Rf Output Level Of A Selected Carrier

    Adjust the RF Output Level of a Selected Carrier Adjust the RF Output Level of a Selected Carrier Pressing the LEVEL key displays screens that allow you to perform the following functions: Set the RF output level of a selected RF carrier (channel) ...

  • Page 104: Mute The Rf Output Of A Selected Carrier

    Follow these steps to enable or disable a muting option for a selected RF output. Important: The RF output state established from the front panel of the GoQAM is not recorded by the DNCS. At the next GoQAM restart, the RF output state reverts to the value stored in the DNCS.

  • Page 105: Change The Carrier Mode Of A Selected Carrier

    CH1 285.00 MHz 50.0 dBmV ITUB 64QAM CW Alarm 0 Note: When choosing CW mode, the CW LED on the front panel of the GoQAM lights and CW appears on the default screen. 4004834 Rev D...

  • Page 106: Monitor Setup Options

    Monitor Setup Options OPTIONS Menu The following RF GoQAM setup screens appear, in sequential order, when you press the OPTIONS key repeatedly. These screens allow you to monitor alarms, the number of sessions, and the program count for the GoQAM. This section provides...

  • Page 107

    Press OPTIONS twice. The Session Count screen appears. CH1 Session Count Note: The session count for the GoQAM will differ from the session count on the DNCS if the GoQAM does not find needed MPEG programs within MPEG Program Specific Information (PSI). By design, the GoQAM responds positively to a session setup request even if the requested MPEG program is not present on the input transport stream.

  • Page 108

    Press OPTIONS until the Encryption Mode screen appears. Press ENTER to return to the default screen. Viewing the MAC Address To view the MAC address used for GoQAM Ethernet communication, complete the following steps. Press OPTIONS until the MAC Address screen appears.

  • Page 109

    Important! If an asterisk (*) appears after one of the code version numbers, this indicates that the code version is a mismatch to the GoQAM software package version. Press ENTER to return to the default screen.

  • Page 110

    Viewing the NP1 Software Revision Level The NP1 software revision screen displays the revision level for the Input processor in the GoQAM. To display the NP1 software revision screen, follow these steps. Press OPTIONS until the NP1 Software Revision screen appears.

  • Page 111

    Viewing the NP3 Software Revision Level The NP3 software revision screen displays the revision level for Output 2 processor in the GoQAM. To display the NP3 software revision screen, follow these steps. Press OPTIONS until the NP3 Software Revision screen appears.

  • Page 112

    RF channels. Important! The modulation type established from the front panel of the GoQAM is not recorded by the DNCS. At the next GoQAM restart, the modulation type for the GoQAM reverts to the value stored in the DNCS. To set the modulation type, follow these steps.

  • Page 113

    (FEC) code within the MPEG transport data. Interleaving evenly disperses the data to transport it reliably over the cable channel. Important: The recommended setting for this screen is 128,4. Only Cisco service representatives should modify this setting.

  • Page 114: Change An Rf Carrier Frequency

    Important! Frequencies set from the front panel of the GoQAM are not recorded by the DNCS. At the next GoQAM restart, the frequencies are reset to the values stored in the DNCS. Changing an RF Carrier Frequency Follow these steps to change an RF carrier frequency.

  • Page 115: Resetting The Goqam

    Resetting the GoQAM Resetting the GoQAM Follow these steps to reboot the GoQAM from the front panel. Press OPTIONS until the Unit Reset screen appears. Press the Down Arrow key. The GoQAM reboots. 4004834 Rev D...

  • Page 117: Chapter 6 Operating The If Goqam

    Chapter 6 Operating the IF GoQAM Introduction This chapter contains procedures for viewing and changing IF GoQAM settings, descriptions of screens and messages, and instructions for performing routine maintenance. Note: Actual screen settings may differ slightly from the examples presented in this guide.

  • Page 118: Understand The Boot Process

    The DNCS sends the TFTP goqam.config file. If the files in the goqam.config file are different from those stored in the GoQAM, then the GoQAM requests the download files, which consist of the following: ...

  • Page 119

    If BOOTP completes successfully, the IP address boot screen appears. Note: Although it is not a typical setting, if the GoQAM is set to run in a Standalone mode (boot mode 0), the following Standalone mode boot screen appears instead of the “Starting GoQAM”...

  • Page 120

    Chapter 6 Operating the IF GoQAM Code Download Screens The boot code, application code, and RF module code messages appear on the front panel LCD screen during code download or during a download attempt. The following table represents the sequence of events that occur during a complete boot code, application code, and RF module code upgrade.

  • Page 121: Change The Boot Mode

    If used when the GoQAM is connected to the network and the network connection is lost or reset, the GoQAM must be rebooted. This mode attempts each BOOTP and TFTP step only once. If a failure occurs during any step, the step is skipped;...

  • Page 122

    Chapter 6 Operating the IF GoQAM Changing the Boot Mode Connect a diagnostic PC to the CRAFT PORT on the back panel of the GoQAM. Power on the diagnostic PC and activate a Procomm or Hyperterminal window using the following modem connection settings: ...

  • Page 123: Read The Default Status Screen

    The Default Status screen provides status information such as the channel frequency setting, IF level settings, modulation type, and the number of active alarms for the GoQAM unit. The IF GoQAM displays the default status screen after one of the following occurs: The reset process is complete.

  • Page 124: Use The Front Panel Keys To Change Configuration Settings

    Use the Front Panel Keys to Change Configuration Settings The front panel of the GoQAM contains an alphanumeric LCD screen and three alarm indicators. There are also several keys on the front panel to allow you to change parameters. See the Front Panel Overview (on page 10) section for more information on the front panel components.

  • Page 125

    Use the Front Panel Keys to Change Configuration Settings Accessing the GoQAM Menus You can access GoQAM menus and screens by pressing the FREQ, LEVEL, CW, and OPTIONS keys on the front panel. Pressing the LEVEL, OPTIONS, and RF SEL keys repeatedly scrolls through their respective sequential menus.

  • Page 126: Adjust The If Output Level Of A Selected Carrier

    Chapter 6 Operating the IF GoQAM Adjust the IF Output Level of a Selected Carrier Pressing the LEVEL key displays screens that do the following: Set the IF output level of a selected IF carrier (channel)  Enable or disable a muting option for the selected IF carrier (channel) ...

  • Page 127: Mute The If Output Of A Selected Carrier

    Follow these steps to enable or disable a muting option for a selected IF output. Important: The IF output state established from the front panel of the GoQAM is not recorded by the DNCS. At the next GoQAM restart, the IF output state reverts to the value stored in the DNCS.

  • Page 128: Change The Carrier Mode Of A Selected Carrier

    Press ENTER. The system saves the carrier mode setting changes to NVRAM and the default screen appears. Note: When choosing CW mode, the CW LED on the front panel of the GoQAM lights and CW appears on the default screen.

  • Page 129: Monitor Setup Options

    The following GoQAM setup screens appear, in sequential order, when you press the OPTIONS key repeatedly. These screens allow you to monitor alarms, the number of sessions, and the program count for the GoQAM. This section provides instructions for viewing the GoQAM settings on each screen and explanations of...

  • Page 130

    Press OPTIONS until the Session Count screen appears. IF1 Session Count Note: The session count for the GoQAM will differ from the session count on the DNCS if the GoQAM does not find needed MPEG programs within MPEG Program Specific Information (PSI). By design, the GoQAM responds positively to a session setup request even if the requested MPEG program is not present on the input transport stream.

  • Page 131

    Press OPTIONS until the Encryption Mode screen appears. Press ENTER to return to the default screen. Viewing the MAC Address To view the MAC address used for GoQAM Ethernet communication, complete the following steps. Press OPTIONS until the MAC Address screen appears.

  • Page 132

    Important! If an asterisk (*) appears after one of the code version numbers, this indicates that the code version is a mismatch to the GoQAM software package version. Press ENTER to return to the default screen.

  • Page 133

    Viewing the NP1 Software Revision Level The NP1 software revision screen displays the revision level for the Input processor in the GoQAM. To display the NP1 software revision screen, follow these steps. Press OPTIONS until the NP1 Software Revision screen appears.

  • Page 134

    Viewing the NP3 Software Revision Level The NP3 software revision screen displays the revision level for Output 2 processor in the GoQAM. To display the NP3 software revision screen, follow these steps. Press OPTIONS until the NP3 Software Revision screen appears.

  • Page 135

    Important! The modulation type established from the front panel of the GoQAM is not recorded by the DNCS. At the next GoQAM restart, the modulation type for the GoQAM reverts to the value stored in the DNCS. To set the modulation type, follow these steps.

  • Page 136

    (FEC) code within the MPEG transport data. Interleaving evenly disperses the data to transport it reliably over the cable channel. Important: The recommended setting for this screen is 128,4. Only Cisco service representatives should modify this setting.

  • Page 137: Select An If Channel Or Carrier

    IF output modules. The RF SEL key allows you to select another carrier channel. Important! The IF output is fixed at 44.00 MHz on the IF GoQAM. Example: A frequency setting of 44.00 MHz for IF1 in the following illustration means that carrier channel 1 (IF1) has a frequency of 44.00 MHz.

  • Page 139: Chapter 7 Inspect The Modulator

    Inspect the Modulator Introduction Performing routine maintenance helps prevent the need for troubleshooting. See Troubleshooting the GoQAM (on page 131) for instructions to troubleshoot the GoQAM and to address alarm conditions that occur in the GoQAM. This chapter includes information on inspecting the GoQAM modulator, replacing the fuse, and diagnosing and replacing the fan.

  • Page 140: Quarterly Inspection

    Although, the modulator can operate unattended for extended periods. Cisco recommends that you perform a visual inspection once every 3 months. Important: Only qualified personnel should maintain and service the GoQAM. Check the following items during a visual inspection: Cables and connectors—Verify that all cables are mated properly and all ...

  • Page 141: Replace The Fuse

    To replace the SLO BLO 250 V fuse, follow these steps. Power down the GoQAM and remove the power cord. Locate the fuse holder on the left side of the back panel of your RF GoQAM model. Choose one of the following options: ...

  • Page 142

    For the 120/230V AC model, snap the fuse holder in place.  For the 48V DC model, tighten the fuse holder by using a small flat-blade screwdriver to turn the fuse holder clockwise. 12 Replace the power cord and power on the GoQAM. 4004834 Rev D...

  • Page 143: Diagnose The Fan

    LCD screen, or perhaps both. WARNING: Avoid electric shock and damage to this product! Replace the fan only with a genuine replacement fan from Cisco. Contact Cisco Services to order replacement fans. Diagnosing the Fan The following illustrations are examples of the alarm displays you will see on the front panel LCD screen.

  • Page 144: Replace The Fan

    You must replace the entire dual fan unit if one of the fan rotors should fail. The fan units are designed to be “hot swappable,” meaning that you do not necessarily have to power down the GoQAM to replace a fan unit that has failed.

  • Page 145

     If no, go to step 2. If you cannot slide the GoQAM forward in the rack because some or all of the cables in the rack are not long enough to access the fan, wait to replace the fan until you have a maintenance window.

  • Page 146

    Remove the non-functioning fan unit and carefully disconnect the 9-pin connector. Set this fan unit aside for safe disposal later. Hold the new fan unit in place on the side panel of the GoQAM so that the rotor with three fan blades is visible.

  • Page 147: Chapter 8 Troubleshooting The Goqam

    Important! The RF alarms listed in this chapter apply only to the RF GoQAM. RF alarms do not occur on the IF GoQAM. In This Chapter ...

  • Page 148: Alarm Conditions

    This section describes major, minor, and status alarms and explains how to access and read the alarms displayed on the front panel LCD of the GoQAM. Refer to Troubleshooting Alarm Messages (on page 134) for a list of alarm messages that appear on the LCD screen, their level of severity, and possible solutions.

  • Page 149

    Alarm Conditions LCD Alarm Display The front panel of the GoQAM displays alarm messages in the following standard display. Alarm at 11:51:40 Input1 loss of signal The alarm message appears on the second line of the display. In this example, the message indicates a loss of signal to the ASI Input, which is a major alarm condition.

  • Page 150: Troubleshooting Alarm Messages

    Cisco. See Customer Information (on page 147) for contact information. Important! The RF alarms listed in this section apply only to the RF GoQAM. RF alarms do not occur on the IF GoQAM. See Troubleshooting Boot Screen Error Messages (on page 143) for resolving problems encountered during the start-up process.

  • Page 151

    – Reducing the DNCS for the GoQAM session is too amount of data low, which also means that the data added to the rate of the ASI input to the GoQAM is stream too high – Increasing the Hardware problem ...

  • Page 152

    DNCS for the GoQAM session is too – Reducing the low, which also means that the data amount of data rate of the ASI input to the GoQAM is added to the too high stream Hardware problem ...

  • Page 153

    DNCS for the GoQAM session is too – Reducing the low, which also means that the data amount of data rate of the ASI input to the GoQAM is added to the too high stream Hardware problem ...

  • Page 154

    Use a TV to verify  program availability Contact Cisco Services  Reset detected Status The GoQAM has been reset by either a Session and alarm power loss or a manual reset provisioning are sent to the GoQAM again automatically from the DNCS.

  • Page 155

    RF calibration data is not be (RF GoQAM available, and the “RF (1-4) Level not only) calibrated” alarm is also active RF (1-2) Minor The internal temperature of the GoQAM Remove vent  Exceeded max is more than 70ºC (158ºF) obstructions...

  • Page 156

    Level RF (1-2) Level Minor One of the RF Level settings on the Contact Cisco Services not calibrated GoQAM is not calibrated to the correct frequency, or the EEPROM that stores the (RF GoQAM calibration data is not operational only)

  • Page 157

    Cause Code 3 - PID enable error - A  connectivity issues or packet identifier (PID) that should be indications of loss of enabled is not enabled in the GoQAM services. modulator. Contact Cisco Services  Cause Code 6 - Continuity error - This ...

  • Page 158

     Message (ECM) PID conflict automatically clear, contact Cisco Services Cause Code 8 - Program number  conflict System Major The GoQAM cannot communicate with Check for loose  Hardware the RF network. connections or Alarm defective cables, tighten any loose cable...

  • Page 159: Troubleshooting Boot Screen Error Messages

    Troubleshooting Boot Screen Error Messages This section contains examples of warning screens associated with booting error conditions. Some booting error conditions may require you to contact Cisco Services. Booting Error Messages The following table lists booting error conditions sorted alphabetically by error type, and provides suggestions for correcting the error condition.

  • Page 160

    Configuration File configuration The following message appears when in boot Screens file. mode 1 and the configuration file type is incorrect for the GoQAM. The first line of the Contact Cisco  configuration file contains Services. GqamBootpFileType=1.0. Invalid File format Continuing Startup...

  • Page 161

    Unable to TFTP RF Code Check the   Download Failure configuration The following message appears if the GoQAM is Screen file. unable to download the RF module code execution files for boot mode 1 or boot mode 2 Check for an ...

  • Page 162

    Configuration File file The following message appears when in boot from TFTP Server provisioned on mode 1 and the GoQAM is unable to download the DNCS is the configuration file from the TFTP server. present in the DNCS File Problem with Config File system.

  • Page 163: Chapter 9 Customer Information

    Chapter 9 Customer Information If Your Have Questions If you have technical questions, call Cisco Services for assistance. Follow the menu options to speak with a service engineer. Access your company's extranet site to view or order additional technical publications. For accessing instructions, contact the representative who handles your account.

  • Page 165: Appendix A Technical Specifications

    Appx auto letter Technical Specifications Appendix A Introduction This appendix lists the power, rack, and environmental requirements for installing the GoQAM and provides technical specifications. In This Appendix  Installation and Operation Requirements ........150  IF Specifications .................. 152 ...

  • Page 166: Installation And Operation Requirements

    Installation and Operation Requirements This section contains tables that define specifications specific to installing and operating the GoQAM. Power Requirements Table The following table describes the power specifications for the GoQAM. Item Specification Supply Voltage 90V to 130V AC @ 47 to 63 Hz (AC unit) ...

  • Page 167

    Use caution when installing wiring and racks to avoid obstruction of air flow into the side air vents of the GoQAM, or out of the vent fans at the GoQAM side panel. Important: You must use the supplied notched rack mounts (Cisco part numbers 734845 and 734846) to mount the GoQAM in the rack.

  • Page 168: If Specifications

    Appendix A Technical Specifications IF Specifications IF Specifications Table The following table provides various IF specifications and ranges for the IF GoQAM. Specification Range Frequency Range 44.00 MHz Minimum Tuning Step Size Output Power Level +27 to +37 dBmV minimum range Output Impedance 75 Ω...

  • Page 169: Rf Specifications

    RF Specifications RF Specifications Specification Range Frequency Range (center frequency) 91 to 869 MHz Minimum Tuning Step Size 250 kHz RF Output Power Level +42 to +54 dBmV minimum range RF Output Impedance 75 Ω RF Output Return Loss (carrier on) >...

  • Page 170: Asi Input Specifications

    Appendix A Technical Specifications ASI Input Specifications Specification Value Minimum Sensitivity 200 mV (p-p) Maximum Input Voltage 880 mV (p-p) Input Impedance 75 Ω Input Return Loss > 17 dB (27 to 270 MHz) 4004834 Rev D...

  • Page 171: Modulation Specifications

    Modulation Specifications Modulation Specifications Modulation Specifications Table The following table provides modulation specifications for the GoQAM. 6 MHz Type Alpha Interleaver Symbol Rate Data Rate Bandwidth Spec (Msymbols/sec) (megabits/sec) I=12, J=17 5.304 29.328 6 MHz ITU-A DAVIC/ DVB 64 ITU-A...

  • Page 172: Digital I/o Performance Specifications

    Appendix A Technical Specifications Digital I/O Performance Specifications Digital I/O Performance Specifications Table The following table provides digital input and output performance specifications for the GoQAM. Specification Value Maximum Input Rate 216 Mbps for each of the four ASI input ports Maximum Aggregate Output Rate 39.104 Mbps for each of the RF output ports...

  • Page 173: Connector Type

    Connector Type Connector Type Connector Type Table The following table lists the various types of connectors for the GoQAM. Item Connector 10/100 Base-T Ethernet RJ-45 AC Power IEC 320 connector DC Power 2 Termi-Blok 90 degree header ASI Inputs (4) BNC, 75 Ω...

  • Page 174: Factory Default Settings

    Appendix A Technical Specifications Factory Default Settings Factory Default Settings Table The following table lists default settings for the GoQAM. Value Factory Setting Boot Mode Carrier Mode Modulated Encryption PowerKEY ITUB Interleave 128, 4 LCD Contrast Modulation Type ITUB 64...

  • Page 175: Standard Output Frequencies

    Standard Output Frequencies Standard Output Frequencies The following table provides an example of channel center frequency settings listed in 6 MHz increments between 93 MHz and 867 MHz. Important: This modulator also supports all Standard, Harmonically Related Carrier (HRC), and Incremental Related Carrier (IRC) frequency lineups. This table is for reference purposes only.

  • Page 177: Index

    Install the Modulator Into a Rack • 16 Operating the RF Modulator • 50 Provision an IF GoQAM on the DNCS • 33, 34 Provision GoQAMs on the DNCS • 33, 34 Provision the IF GoQAM • 17, 32, 34 Provision the RF GoQAM •...

  • Page 178

    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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