Related Manuals for Cisco D9477-1
Summary of Contents for Cisco D9477-1
- Page 1 78-717866-01 Rev D MQAM Modulator Models D9477-1, D9477-2, and D9477-3 Installation and Operation Guide...
- Page 3 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.
- Page 4 Copyright © 2007, 2013 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...
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Page 5: Table Of Contents
Contents Safety Precautions Read, Retain, and Follow These Instructions ............vii Warning and Caution Icons ................... vii Heed All Warnings ....................vii Avoid Electric Shock ....................vii Servicing ........................viii Cleaning, Water, Moisture, Open Flame ............. viii Ventilation ........................ viii Placement ......................... - Page 6 Contents Chapter 2 Installing the MQAM Installation Process Summary ....................12 Before You Begin ....................... 12 MQAM Installation Processes ................. 12 Unpack and Inspect the MQAM ..................14 Carrier’s Responsibility .................... 14 Unpacking and Inspecting Procedure ..............14 Install the Modulator Into a Rack ..................15 Installing the Modulator into a Rack ..............
- Page 7 Contents Chapter 4 Operating the Modulator Understand the Boot Process ....................42 Initial Boot Screens ....................43 Code Download Messages ..................44 Change the Boot Mode ......................45 Boot Modes ........................ 45 Changing the Boot Mode ..................46 Read the Default Status Screen .................... 47 Reading the Default Status Screen................
- Page 8 Contents Inspect the MQAM ........................ 62 Quarterly Inspection ....................62 Replace the Fuse ........................63 Replacing the Fuse ....................63 Diagnose the Fan ........................65 Diagnosing the Fan ....................65 Replace the Fan ........................66 When Can I Perform This Procedure? ..............66 Location of Fans ......................
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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... -
Page 10: Servicing
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. -
Page 11: Fuse
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. - Page 12 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 78-717866-01 Rev D...
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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
About This Guide Introduction This guide describes the following Multiple Quadrature Amplitude Modulation (MQAM) modulator models and includes installation and operation procedures. Model D9477-1 120 V AC (part number 592800) Model D9477-2 48 V DC (part number 714330) ... -
Page 16: Related Publications
About This Guide Related Publications You may find the following publications useful as resources when you implement the procedures in this document. DBDS Utilities Version 5.1 Installation Instructions and DNCS Utilities User’s Guide (part number 740020) DBDS Utilities Version 6.1 Installation Instructions and DNCS Utilities User’s Guide ... -
Page 17: Chapter 1 Introducing The Mqam
Chapter 1 Introducing the MQAM Introduction This chapter illustrates how the Multiple Amplitude Modulation modulator (MQAM) functions within the Digital Broadband Delivery System (DBDS), describes MQAM processing, and describes the front and back panel of the MQAM. In This Chapter ... -
Page 18: System Overview
Chapter 1 Introducing the MQAM System Overview The MQAM delivers compressed and encoded, multi-program Moving Picture Expert Group (MPEG) transport streams of interleaved voice, video, and data in the RF spectrum to Digital Home Communications Terminals (DHCTs). The MQAM performs the following functions within the DBDS: Uses two ASI inputs to allow: ... - Page 19 System Overview Feature Function MPEG Stream Program Clock Reference Timestamp Correction Management Program Specific Information Reconstruction MPEG Packet Insertion: System Information (SI), Entitlement Control Messages (ECMs), Program Map Tables (PMTs) Transport Stream Monitoring Adaptive Insertion Rate Control ...
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Page 20: Input/Output Process
DC Unit: DC Power Two-post terminal block DC power input connection Inlet Fuse Holder (AC Unit) 2.0 A SLO BLO 250 V fuse (Cisco part number 535391, International T2H) (DC Unit) 2.5 A SLO BLO 250 V fuse (Cisco part ... - Page 21 Input/Output Process Major DBDS Components Depending on the system architecture, MQAM can be used in either headends or in hubs. The following illustration provides examples of where the MQAM can be used with the major components of the DBDS. 78-717866-01 Rev D...
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Page 22: Input/Output Diagram
Chapter 1 Introducing the MQAM Input/Output Diagram The following diagram illustrates the stages of the input/output process for the MQAM. 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 MQAM. The numbers correspond to the above I/O diagram. -
Page 23: Front Panel Overview
Front Panel Overview Front Panel Overview Front Panel Diagram The following illustration shows the front panel components of the MQAM modulator. The labeled areas are described in the table below. Note: The front panel components are identical for each model of the MQAM modulator. - Page 24 Chapter 1 Introducing the MQAM Item Component Description The Frequency key selects the frequency display screen on FREQ which you can adjust the RF output frequency for each of the RF carriers. The Level key selects the RF Output Level screen on which LEVEL you can adjust the RF output power level and mute the RF output (42 to 56 dBmV).
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Page 25: Back Panel Overview
Back Panel Overview Back Panel Overview Back Panel Diagram This illustration shows the back panel components for each type of MQAM. Note: Not all components appear on all models. 78-717866-01 Rev D... -
Page 26: Back Panel Indicator Lights
Chapter 1 Introducing the MQAM Back Panel Indicator Lights The following table describes the back panel indicator lights. Indicator Light Description DATA 1 (green) Lights when the DVB ASI Input 1 port is receiving valid MPEG-2 transport stream (TS) packets DATA 2 (green) Lights when the DVB ASI Input 2 port is receiving valid MPEG-2 TS packets... -
Page 27: Chapter 2 Installing The Mqam
Chapter 2 Installing the MQAM Introduction This chapter describes how to install the MQAM into a rack and where to connect the MQAM to the other components within the DBDS. The connections used for the MQAM vary according to its use in your system. Refer to Technical Specifications (on page 85) for additional technical specifications to help you install the MQAM in your system. -
Page 28: Installation Process Summary
Chapter 2 Installing the MQAM Installation Process Summary This section provides the installation process and lists the detailed procedures in this guide that correspond with each process step. Important: To ensure proper installation, read this entire guide before starting installation and then follow these processes in the order shown. Before You Begin This process assumes that you have already installed the MQAM software on the DNCS. - Page 29 Installation Process Summary Stage Process See Procedure Do the following: Record the MAC Address (on page Power up the MQAM. Record the MQAM MAC address from the front-panel display. Turn off the MQAM. Connect other network devices to the Connect the DVB ASI Input Ports ...
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Page 30: Unpack And Inspect The Mqam
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 31: Install The Modulator Into A Rack
MQAM and then into the rack. Firmly tighten each mounting screw. Install 1 RU vent panel above the MQAM. Note: The Cisco part number for a V-1 spacer louvered vent panel is 279070. 78-717866-01 Rev D... -
Page 32: Connect Power Sources
Chapter 2 Installing the MQAM Connect Power Sources This section contains instructions for connecting the DC and AC power sources to the modulator. Connecting an Earth Ground Complete the following steps to connect an earth ground to either the DC or AC versions of the MQAM. -
Page 33: Connecting An Ac Power Source
Verify that the power switch on the back panel is placed in the Off position. Connect the power cord to the AC power inlet on the back panel of the 120/230 V AC Model D9477-1 or Model D9477-3 MQAM. Connect the other end of the power cord to an AC electrical outlet. -
Page 34: Record The Mac Address
Chapter 2 Installing the MQAM Record the MAC Address This section contains instructions for recording the Media Access Control (MAC) address by powering on the MQAM to record the MAC address as part of the installation process. Note: Refer to Connect Power Sources (on page 16) before you power up an MQAM to record the MAC address. - Page 35 Record the MAC Address Choose one of the following: For the 120 or 230V AC MQAM, press the power switch on the back panel to the Off position. For the 48V DC MQAM, switch the power supply to the Off position. 78-717866-01 Rev D...
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Page 36: Connect The Rf Out Ports
Chapter 2 Installing the MQAM Connect the RF OUT Ports The RF OUT ports of the MQAM should be connected to a system of combiners, through the cable system, and eventually to subscribers' DHCTs. Each RF port provides for the transport of MPEG-2 TS data. The ports use F-connectors and 75 Ω coaxial cable interfaces. -
Page 37: Connecting The Rf Out Ports
Connect the RF OUT Ports Connecting the RF OUT Ports Follow these steps to connect the RF OUT ports. CAUTION: Turning on the MQAM with default RF output level may cause RF interference with the services of other units connected to the network. Therefore, set the RF output frequency and RF output level before you connect any RF OUT ports to the network. -
Page 38: Connect The Dvb Asi Input Ports
Chapter 2 Installing the MQAM Connect the DVB ASI Input Ports The MQAM uses two asynchronous interface (ASI) input ports to receive data from the following types of DVB ASI-compliant transmitting devices: VOD Server PowerVu Plus Multiple Decryption Receiver (MDR) ... -
Page 39: Connecting The Dvb Asi Ports
Connect the DVB ASI Input Ports Connecting the DVB ASI Ports Refer to your network wiring diagram to cable the MQAM in accordance with your bandwidth allocation plan. Follow these steps to connect each of the DVB ASI Input ports. Locate the DVB ASI I/O Card on the back of an output device, such as a Grooming BIG or a VOD server. -
Page 40: Connect The Ca Sync Port
Chapter 2 Installing the MQAM Connect the CA SYNC Port The MQAM contains a DB-9 9-pin male CA SYNC port to connect to a diagnostic PC or a virtual private network (VPN). This port is for diagnostic use, and is not designed to be connected for normal operation. -
Page 41: Connecting The Ca Sync Port
Connect the CA SYNC Port Connecting the CA SYNC Port Follow these steps to connect the CA SYNC port to a diagnostic PC. Connect the male end of a DB-9 data cable to the CA SYNC port on the back of the MQAM. -
Page 42: Connect The 10/100Baset Ethernet Port
Chapter 2 Installing the MQAM Connect the 10/100BaseT Ethernet Port Description The MQAM 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 MQAM, set up broadcast sessions, monitor alarms, and check system performance. -
Page 43: Connecting The 10/100Baset Ethernet Port
Connect the 10/100BaseT Ethernet Port Connecting the 10/100BaseT Ethernet Port Follow these steps to connect the MQAM to the Ethernet network. Connect the DNCS to the ATM switch using multi-mode fiber. Connect the ATM switch to the router using single-mode fiber. Connect the router to the 10/100BaseT Ethernet hub using CAT-5 Ethernet 10/100BaseT wiring with RJ-45 connectors. -
Page 45: Chapter 3 Provision The Mqam
Chapter 3 Provision the MQAM Introduction This chapter provides examples and descriptions of the DNCS graphical user interfaces (GUIs) used for provisioning (configuring) the MQAM as a network element from the DNCS. Note: See Technical Specifications (on page 85) for the technical specifications of the MQAM and consult your network wiring diagram when you provision the MQAM to ensure a proper allocation of bandwidth. -
Page 46: Overview
Chapter 3 Provision the MQAM Overview Provisioning the MQAM establishes communication between the DNCS and the MQAM. To provision the MQAM, the system administrator must do the following: Enter the IP and physical (MAC) addresses of the MQAM. Assign a name to the MQAM. ... -
Page 47: Basic Parameters Tab
Basic Parameters Tab Basic Parameters Tab The Basic Parameters tab on the Set Up MQAM window appears when you do the following: From the DNCS Administrative Console, select one of the following tabs: For SR 2.7/3.7/4.2 and later, click the Network Element Provisioning tab. ... - Page 48 Chapter 3 Provision the MQAM The following table lists field descriptions on the Basic Parameters tab. Field Description Headend Name The name of the headend with which the MQAM is associated. QAM Name The name used for the MQAM. IP Address The Internet Protocol address for the MQAM assigned by the system administrator.
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Page 49: Advanced Parameters Tab
Advanced Parameters Tab Advanced Parameters Tab The Advanced Parameters tab of the Set Up MQAM window allows you to select the configuration file for the MQAM. The following diagram shows an example of the Advanced Parameters tab of the Set Up MQAM window. -
Page 50: File Selection Dialog Window
Chapter 3 Provision the MQAM File Selection Dialog Window The File Selection Dialog window appears when you click the Select button on the Advanced Parameters tab. This window lets you specify the configuration file for the MQAM. The boot/tftp process allows the MQAM, after power up or reset, to request and receive configuration parameters, application downloads, and provisioning from the network bootp server. - Page 51 Advanced Parameters Tab The following table lists field descriptions on the File Selection Dialog window. Field Description Filter The path and filename wildcard used by the system to search for files. Enter the UNIX path, ending with /*. This displays the contents of directory in the Directories and Files fields of this window when you click Filter.
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Page 52: Connectivity Tab
Chapter 3 Provision the MQAM Connectivity Tab The Connectivity tab of the Set Up MQAM window allows you to specify the input device connected to each of the Input ports on the MQAM. Note: When you first provision the MQAM, the Connectivity is active only after you click Apply or Save from the Set Up MQAM window. - Page 53 Connectivity Tab The following table lists field descriptions on the Connectivity tab. Field Description QAM Name Identifies the name of the selected MQAM (also identified on the DNCS as a QAM or Service QAM). Allows you to specify the Input 1 Port or Input 2 Port. Headend Name Identifies the headend in which the input device exists.
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Page 54: Provisioning The Mqam On The Dncs
Chapter 3 Provision the MQAM Provisioning the MQAM on the DNCS Follow these steps to provision a new MQAM or adjust the settings for an existing MQAM from the DNCS. Note: Provision the MQAM in accordance with your network wiring diagram and the input/output specifications for both the MQAM and other network devices. - Page 55 Provisioning the MQAM on the DNCS 11 Click the Connectivity tab. 12 Select the MQAM input port you want to connect to the network. 13 Select the device you want to connect to the MQAM in the Connect To fields of the Connectivity tab;...
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Page 57: Chapter 4 Operating The Modulator
Chapter 4 Operating the Modulator Introduction This chapter contains procedures for viewing and changing MQAM 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. In This Chapter ... -
Page 58: Understand The Boot Process
Chapter 4 Operating the Modulator Understand the Boot Process This section describes the boot process and lists examples of the screens that appear during a normal boot process. The Bootstrap (BOOTP) protocol is used to initialize and to acquire the following configuration information: IP address ... -
Page 59: Initial Boot Screens
Understand the Boot Process Initial Boot Screens The following illustrations show examples of the initial boot screens. Note: Actual screen settings may differ from the examples presented in this guide. When the MQAM boots, the boot code version and release date appear. After a brief period, the MAC address of the MQAM appears. -
Page 60: Code Download Messages
Chapter 4 Operating the Modulator Code Download Messages 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 shows the message that appear during these downloads. Code Download Message Displayed Boot Code... -
Page 61: Change The Boot Mode
Change the Boot Mode Change the Boot Mode This section describes the available boot modes available and contains instructions for changing the boot mode from the craft port using a diagnostic PC. See Connect the CA SYNC Port (on page 24) for connection instructions. Boot Modes Three boot modes (0 through 2) exist and are described in the following list: 0 - Skip BootP (Standalone mode) –... -
Page 62: Changing The Boot Mode
Chapter 4 Operating the Modulator Changing the Boot Mode Connect a diagnostic PC to the CRAFT PORT on the back panel of the MQAM. Power on the diagnostic PC and activate a Procomm or Hyperterminal window using the following modem connection settings: ... -
Page 63: Read The Default Status Screen
Read the Default Status Screen Read the Default Status Screen The Default Status screen provides status information such as the channel frequency setting, RF level settings, modulation type, and the number of active alarms. The default status screen displays after one of the following occurs: The reset process is complete. -
Page 64: Use The Front Panel Keys To Change Configuration Settings
Chapter 4 Operating the Modulator Use the Front Panel Keys to Change Configuration Settings The front panel of the MQAM contains an alphanumeric LCD screen and three alarm indicators. There are also several keys on the front panel to allow you to change parameters. -
Page 65: Accessing The Mqam Menus
Use the Front Panel Keys to Change Configuration Settings Accessing the MQAM Menus You can access MQAM menus and screens by pressing the FREQ, LEVEL, CW, or OPTIONS keys on the front panel. Pressing these keys repeatedly scrolls through their respective sequential menus. The following sections in this chapter describe the functions associated with each key: FREQ - Adjust the Frequencies of a Selected Carrier (on page 50) -
Page 66: Adjust The Frequencies Of A Selected Carrier
Chapter 4 Operating the Modulator Adjust the Frequencies of a Selected Carrier Pressing the FREQ key allows you to access the output frequency screen, from which you can select an RF output and adjust its output frequency. Important! Frequencies set from the front panel of the MQAM are not recorded by the DNCS. -
Page 67: Adjust The Rf Output Level Of A Selected Rf Module
Adjust the RF Output Level of a Selected RF Module Adjust the RF Output Level of a Selected RF Module Pressing the LEVEL key displays screens that allow you to perform the following functions: Set the RF output level of a selected RF modulator ... -
Page 68: Mute The Rf Output Of A Selected Rf Module
Chapter 4 Operating the Modulator Mute the RF Output of a Selected RF Module This section contains instructions for enabling the RF mute option. During installation, for example, use this procedure to mute the RF output before you connect the RF OUT ports to the distribution plant. Enabling or Disabling a Muting Option Follow these steps to enable or disable a muting option for a selected RF output. -
Page 69: Change The Carrier Mode Of A Selected Rf Module
Change the Carrier Mode of a Selected RF Module Change the Carrier Mode of a Selected RF Module This function allows you to toggle RF output to either a modulated (normal) carrier mode or a continuous wave (CW) carrier mode. Important! The carrier mode established from the front panel of the MQAM is not recorded by the DNCS. -
Page 70: Monitor Setup Options
Chapter 4 Operating the Modulator Monitor Setup Options OPTIONS Menu The following RF MQAM 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 MQAM. This section provides instructions for viewing the MQAM settings on each screen and explanations of screen. -
Page 71: Displaying Alarm Status
Monitor Setup Options Displaying Alarm Status Follow these steps to display the list of active alarms. Press OPTIONS. The Alarm Status screen appears. Notes: Each alarm description appears for approximately 1 second before displaying the next alarm. If no alarms are active, a No Active Alarms message appears. ... -
Page 72: Viewing The Encryption Mode
Chapter 4 Operating the Modulator Viewing the Encryption Mode The Encryption Mode screen displays the current encryption mode setting. The mode is saved in the NVRAM and is selected during the boot process. To display the current encryption mode, complete the following steps. Press OPTIONS until the Encryption Mode screen appears. -
Page 73: Viewing The I/O Board Software Revision Level
Monitor Setup Options Viewing the I/O Board Software Revision Level The Software Package Release version screen displays the top-level software release version for the modulator. To display the Software Package Release version screen, follow these steps. Press OPTIONS until the Software Package Release version screen appears. Notes: ... -
Page 74: Viewing The Hardware Revision String
Chapter 4 Operating the Modulator Viewing the Hardware Revision String The Revision Control screen displays the hardware revision string of the MQAM. This string is 31 bytes long and is stored in non-volatile memory. Only eight characters of the string can be viewed at a time. Press OPTIONS until the Revision Control screen appears. -
Page 75: Itub Interleave Screen
(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 Services representatives should modify this setting. -
Page 76: Inspect The Modulator
Chapter 4 Operating the Modulator Inspect the Modulator 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 MQAM. Check the following items during a visual inspection: Cables and connectors—Verify that all cables are mated properly and all... -
Page 77: Select An Rf Module
Select an RF Module Select an RF Module The RF SEL key allows you to select the default screens for each of the RF Modules (channels). Selecting an RF Module Follow these steps to change the selected RF Module. Press the RF SEL key on the front panel of the MQAM. The Default Status screen changes to the next available RF Module. -
Page 78: Inspect The Mqam
Chapter 4 Operating the Modulator Inspect the MQAM Performing routine maintenance helps prevent the need for troubleshooting. For troubleshooting information, see Troubleshooting the MQAM (on page 69) for instructions on addressing alarm conditions for the MQAM. Quarterly Inspection The MQAM can operate unattended for extended periods. However, you should perform a visual inspection once every 4 months. -
Page 79: Replace The Fuse
Each MQAM contains a power fuse. We recommend keeping spare 4.0 A, SLO BLO 250V fuses (Cisco part number 188106) for the 120/230V AC model MQAM and spare 6.3 A, SLO BLO 250V fuses (Cisco part number 180522) for the 48V DC model MQAM. - Page 80 Chapter 4 Operating the Modulator Choose one of the following options: For the 120/230V AC model, use a small flat-blade screwdriver to pry out the fuse holder, then go to step 7. For the 48V DC model, go to step 4. Loosen the fuse holder by using a small flat-blade screwdriver to turn the fuse holder counter-clockwise.
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Page 81: 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 82: Replace The Fan
Chapter 4 Operating the Modulator Replace the Fan The MQAM modulator has three dual fan units on the side panel. Each of these units contains two fan rotors. You must replace the entire dual fan unit if one of the fan rotors should fail. -
Page 83: Replacing The Fan
WARNING: Avoid damage to this product! Replace the dual fan unit only with a genuine replacement fan unit from Cisco. Contact Cisco Services to order replacement fan units. Are the cables connected to the back panel long enough to allow you to slide the... - Page 84 MQAM. 14 Does the new fan unit operate properly? If yes, you have completed this procedure. If no, contact Cisco Services for assistance. 78-717866-01 Rev D...
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Page 85: Chapter 5 Troubleshooting The Mqam
Chapter 5 Troubleshooting the MQAM Introduction This chapter provides explanations of major, minor, and status alarm conditions and instructions for checking alarms. This chapter also includes an alarm troubleshooting table, arranged alphabetically according to the front panel LCD message, with additional information for resolving alarm conditions. -
Page 86: Alarm Conditions
Chapter 5 Troubleshooting the MQAM 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 MQAM. Refer to Troubleshooting Alarm Messages (on page 72) for a list of alarm messages that appear on the LCD screen, their level of severity, and possible solutions. -
Page 87: Lcd Alarm Display
Alarm Conditions LCD Alarm Display The front panel of the MQAM 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 88: Troubleshooting Alarm Messages
If the MQAM displays an alarm condition, fails a self-test, or does not work properly, refer to the table in this section to find and correct the cause. Some alarm conditions may require you to contact Cisco Services.. See Troubleshooting Boot Screen Error Messages (on page 79) for resolving problems encountered during the start-up process. - Page 89 Probable Cause Check and Correct Description Level ASI (1-2) Minor An error occurred in the header of MPEG Contact Cisco Services errored MPEG packets as they arrived at the indicated packets Input port ASI (1-2) FIFO Minor A first-in first-out (FIFO) overflow Reduce the data rate of ...
- Page 90 MQAM modulation mode Run the Doctor Report to troubleshoot network connectivity issues Contact Cisco Services Craft event Status Someone changed the MQAM setting No response required. change from the craft port. Front panel Status Someone changed the MQAM setting No response required.
- Page 91 MQAM modulator mode Verify and correct session rate targets and threshold values Contact Cisco Services OUT (1-4) Minor Low-priority packets are being dropped. Reduce the data rate of Packets The number of packets at the identified input to the MQAM dropped.
- Page 92 Run the Doctor Report to troubleshoot any network connectivity issues Contact Cisco Services RF (1-4) ASIC Major Modulator IC initialization failure. The Contact Cisco Services init failure modulator MCU could not communicate...
- Page 93 Probable Cause Check and Correct Description Level RF (1-4) DC Major The Down Converter (DC) Phase Locked Contact Cisco Services PLL unlocked Loop (PLL) synthesizer cannot lock. The output frequency may not be corrected. The RF Output field displays MUTED when this condition exists.
- Page 94 Major General-purpose software error. Reset the MQAM by the power switch or (operating through the DNCS system) Contact Cisco Services Session XXXX Minor A signal encryption fault has been Check hardware ca error detected. This could mean that an settings unencrypted signal is being transmitted.
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Page 95: 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 96 Check IP connectivity. Unable to TFTP Boot Code (Boot Mode=2) Contact Cisco Services. The following message appears if the MQAM is unable to download the boot code execution file from the TFTP server during boot mode 2.
- Page 97 DNCS Restarting... if all MQAMs have The MQAM then automatically reboots. this error condition. Check IP connectivity. Contact Cisco Services. Unable to Boot Unable to perform BootP (Boot Mode 1) Verify that the ...
- Page 98 The MQAM then starts the application program. condition. Unable to TFTP Config File (Boot Mode 2) Contact Cisco Services. The following message appears when in boot mode 2 and the MQAM is unable to download the configuration file from the TFTP server.
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Page 99: Chapter 6 Customer Information
Chapter 6 Customer Information If You 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 101: Appendix A Technical Specifications
Appx auto letter Technical Specifications Appendix A Introduction This appendix lists the power, rack, and environmental requirements for installing the MQAM and provides technical specifications. In This Appendix Installation and Operation Requirements ......... 86 RF Specifications ................... 88 ... -
Page 102: Installation And Operation Requirements
Appendix A Technical Specifications Installation and Operation Requirements This section contains tables that define specifications specific to installing and operating the MQAM. Power Requirements Table The following table describes the power specifications for the modulator. Item Specification Supply Voltage 90 to 130V AC @ 47 Hz to 63 Hz (AC unit) ... -
Page 103: Environmental Requirements Table
Installation and Operation Requirements Environmental Requirements Table Item Specification Operating Temperature 0° to 50°C (32° to 122°F) CAUTION: Avoid damage to this product! Your warranty is void if you operate this product above the maximum specified operating temperature. Use caution when installing wiring and racks to avoid obstruction of air flow into the side air vents of the MQAM, or out of the vent fans at the MQAM side panel. -
Page 104: Rf Specifications
Appendix A Technical Specifications RF Specifications Specification Range Frequency Range (center frequency) 91 to 867 MHz Minimum Tuning Step Size 250 kHz RF Output Power Level +45 to +55 dBmV (0.1 dB steps) minimum range RF Output Impedance 75 Ω RF Output Return Loss (unsquelched) >... -
Page 105: Asi Input Specifications
ASI Input 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) 78-717866-01 Rev D... -
Page 106: Modulation Specifications
Appendix A Technical Specifications Modulation Specifications Modulation Specifications Table The following table provides modulation specifications for the MQAM. Modulation Alpha Default Symbol Data Rate Data Rate Type Interleaver Rate including excluding (MHz) MPEG MPEG Header Header ITU-B 256 I=128 J=1 5.360537 38.811 MB 37.985MB... -
Page 107: Digital I/O Performance Specifications
Digital I/O Performance Specifications Digital I/O Performance Specifications Digital I/O Performance Specifications Table The following table provides digital input and output performance specifications for the MQAM. Specification Value Maximum Input Rate 216 Mbps for each of the two ASI input ports, 432 Mbps total, including overhead Maximum Aggregate Output Rate 38.8 Mbps for each of the RF output ports,... -
Page 108: Connector Type
Appendix A Technical Specifications Connector Type Connector Type Table The following table lists the various types of connectors for the MQAM. Item Connector 10 Base-T Ethernet RJ-45 AC Power IEC 320-conductor grounded outlet DC Power 2 Termi-Blok 90 degree header ASI Inputs (2) BNC, 75 Ω... -
Page 109: Factory Default Settings
Factory Default Settings Factory Default Settings Factory Default Settings Table The following table lists default settings for the modulator. Value Factory Setting Boot Mode Carrier Mode Modulated Encryption PowerKEY ITUB Interleave 128, 4 LCD Contrast Modulation Type ITUB 256 RF Freq Highest Center Frequency Setting (867 MHz) RF Mute Off (the output is not muted) -
Page 110: Standard Output Frequencies
Appendix A Technical Specifications Standard Output Frequencies The following table provides an example of channel center frequency settings listed in 6 MHz increments between 93 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 111: Index
Index Adjust the Frequencies of a Selected Carrier • 49 Read the Default Status Screen • 18 Adjust the RF Output Level of a Selected RF Record the MAC Address • 13 Module • 13, 49 Adjusting the Output Frequency • 49 Advanced Parameters Tab •... - Page 112 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.