CAUTION RISK OF ELECTRIC SHOCK CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. Caution These servicing instructions are for use by qualified personnel only. To reduce the risk of electrical shock, do not perform any servicing other than that contained in the Installation and Troubleshooting Instructions unless you are qualified to do so. Refer all servicing to qualified service personnel.
IMPORTANT SAFETY INSTRUCTIONS 1 Read these instructions. 2 Keep these instructions. 3 Heed all warnings. 4 Follow all instructions. 5 Do not use this apparatus near water. 6 Clean only with dry cloth. 7 Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions. 8 Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
FCC Declaration of Conformity According to 47 CFR, Parts 2 and 15 for Class B Personal Computers and Peripherals; and/or CPU Boards and Power Supplies used with Class B Personal Computers, Motorola, Inc., 6450 Sequence Drive, San Diego, CA 92121, 1-800-225-9446 or 101 Tournament Drive, Horsham, PA 19044, 1-888-944-4357, declares under sole responsibility that the product identifies with 47 CFR Part 2 and 15 of the FCC Rules as a Class B digital device.
Contents Section 1..............................................................................................................................................................................1-1 Introduction .................................................................................................................1-1 Features ...............................................................................................................................................................................
ii Contents Recording Your Connections........................................................................................................................................................3-14 Installing the Optional IR Blaster ..................................................................................................................................................3-15 Locating the IR Receiver on the VCR .............................................................................................
Contents iii Section 5..............................................................................................................................................................................5-1 Troubleshooting..........................................................................................................5-1 Appendix A.........................................................................................................................................................................
iv Contents Tables Table 1-1 DVR Recording Time Guidelines....................................................................................................................................1-3 Table 2-1 Front panel ......................................................................................................................................................................2-1 Table 2-2 Rear panel connections ...........................................................................................
Section 1 Introduction This manual provides instructions for cable operator personnel to install the Motorola DCT3412 high-definition digital video recorder (DVR) cable terminals. The DCT3412 terminals include a high-end processor, expanded memory and enhanced graphics to support digital and on-demand, broadcast, and interactive services. They provide a full complement of interconnection options.
1-2 Introduction Features Tuners Two 54 to 860 MHz video tuners with digital MPEG-2 main profile high level video processor One dedicated tuner for the DOCSIS high-speed data/voice services channel, up to 860 MHz One dedicated tuner for the out-of-band (OOB) control channel Standard Audio/Video Features ITU standard 64/256 QAM/FEC enhanced adaptive equalizer DES based encryption/DCII access control Out-of-band data receiver (70-130 MHz) 2.
Introduction 1-3 Standard DVR Functionality DVR functionality integrated with the IPG enables subscribers to: Pause, rewind, fast-forward, or record live TV Maintain a personal recorded program library and access it using the IPG Select programs to record across multiple channels and time slots Rewind and replay recorded programs Simultaneously watch two programs, switching easily between them using the SWAP key Record a program in the background while viewing another live program
1-4 Introduction Available Optional Features Factory-installed expansion flash memory (32 MB) IR Blaster transmitter Using This Manual This manual provides instructions to install and configure a DCT3412: Section 1 Introduction provides a product description, a list of related documentation, the technical help line telephone number, and the repair/return procedure. Section 2 Overview describes the DCT3412 and provides an overview of its use.
Introduction 1-5 If You Need Help If you need assistance while working with the DCT3412, contact the Motorola Technical Response Center (TRC): Inside the U.S.: 1-888-944-HELP (1-888-944-4357) Outside the U.S.: 1-215-323-0044 Motorola Online: http://businessonline.motorola.com The TRC is on call 24 hours a day, 7 days a week. In addition, Motorola Online offers a searchable solutions database, technical documentation, and low-priority issue creation and tracking.
1-6 Introduction Calling for Repairs If a Motorola DCT3xxx set-top requires repair service, please call one of the following Motorola Authorized Service Centers: From USA or Canada Outside USA or Canada World Wide Digital 1-800-227-0450 1-956-541-0600 Teleplan 1-800-352-5274 1-302-322-6088 Company To ensure efficient service, request a Return for Service Authorization (RSA) number. Be sure to display the RSA number prominently on all equipment boxes.
Section 2 Overview This section describes the front and rear panel. Front Panel The front panel controls provide functional navigation if the remote control is lost or is temporarily out of service. Certain functions, such as those requiring a numeric entry, require a remote control. Some connectors are not enabled and require the support of application software.
2-2 Overview Rear Panel The rear panel contains a switched power outlet; connectors for video, audio, and RF cabling; data output; and modem and data interface connectors. Some connectors are not enabled and require the support of application software.
Section 3 Installation This section provides instructions to cable the DCT3412 and check its operation. The cabling diagrams illustrate connections to high-definition or standard-definition TVs, home theater receivers, and stereo VCRs. Important Safety Considerations The DCT3412 requires careful handling to avoid potential damage to its internal hard disk drive or the loss of recorded data. Be sure to follow these requirements during transportation and installation.
3-2 Installation To allow the hard drive to spin down and park its heads, wait at least 10 seconds after disconnecting power before moving the terminal. Before You Begin Before you move or change components on the subscriber entertainment system: Review the installation instructions. Determine if you are connecting to a standard TV, a composite (baseband) monitor, or a component monitor. Verify that you have the necessary cables and other required items.
Installation 3-3 Video Connection Options Use the following guidelines to determine the best video connection for the subscriber home entertainment system. To determine the available video inputs on the TV, check the manual supplied with the TV or the TV itself. The DCT3412 offers the following video outputs: Component (Y Pb Pr) HDTV and SDTV The Y Pb Pr outputs provide component video, the most widely supported HD video connection.
3-4 Installation Installation Overview 1 Determine if you are connecting to a: High-definition TV or monitor Use the component video (Y Pb Pr), HDMI, or IEEE 1394 outputs. No other video connection supports HDTV. Standard definition TV Connect the S-VIDEO connector using an S-video cable, or connect the composite VIDEO connector using an RCA phono cable. If the TV only has a coaxial RF input, connect it to the DCT3412 RF OUT connector.
Installation 3-5 Connecting to an HDTV – Video Only Connect an RF coaxial cable to the cable wall outlet and the CABLE IN connector on the cable terminal. 1 Connect the HDTV using component video, HDMI, or IEEE 1394. Component video (Y Pb Pr) Connect the component video cables to the Y, Pb, and Pr connectors on your cable terminal and the HDTV. This connection carries video only. To connect the audio connections for your HDTV, refer to the following page.
3-6 Installation Figure 3-1 Cabling to an HDTV Because HDMI and IEEE 1394 provide a video and audio output, no additional audio connections to the TV are required if you use HDMI or IEEE 1394.
Installation 3-7 Cabling to an HDTV – Audio Only Connect the stereo audio cable to the AUDIO R and L connectors on the cable terminal and the corresponding connectors on the HDTV. If your equipment supports it, use the OPTICAL SPDIF or coaxial digital SPDIF outputs instead of the AUDIO R and L outputs. In most cases, SPDIF offers better audio quality, including support for Dolby 5.1 Surround Sound. HDMI and IEEE1394 carry video and audio.
3-8 Installation Connecting to an A/V Receiver – Audio Only Connect the stereo audio cable to the AUDIO R and L connectors on the cable terminal and the corresponding connectors on the HDTV. If your equipment supports it, use the OPTICAL SPDIF or coaxial digital SPDIF outputs instead of the AUDIO R and L outputs. In most cases, SPDIF offers better audio quality, including support for Dolby 5.1 Surround Sound. HDMI and IEEE1394 carry video and audio.
Installation 3-9 Connecting to a Stereo TV Depending on the TV’s inputs: If possible, use the S-VIDEO and AUDIO connectors on the DCT3412. If the TV has no S-Video input, use the composite VIDEO and AUDIO connectors on the DCT3412. If the TV has an RF input only, use the RF OUT connector on the cable terminal. The RF connection carries video and audio. Connecting a Stereo TV Connect an RF coaxial cable to the cable wall outlet and the CABLE IN connector on the cable terminal.
3-10 Installation Figure 3-4 Connecting a Stereo TV DCT3412 Installation Manual
Installation 3-11 Connecting a Stereo TV and Stereo VCR 1 Connect an RF coaxial cable to the cable wall outlet and the CABLE IN connector on the cable terminal. 2 Connect a stereo audio cable to the AUDIO OUT R and L connectors on the cable terminal and the INPUT AUDIO R and L connectors on the stereo VCR. 3 Connect a video cable to the VIDEO OUT connector on the cable terminal and the INPUT VIDEO connector on the stereo VCR.
3-12 Installation Connecting an A/V Receiver, TV, and VCR 1 Connect an RF coaxial cable to the cable wall outlet and the CABLE IN connector on the cable terminal. 2 Connect a stereo audio cable to the AUDIO OUT R and L connectors on the cable terminal and the INPUT R and L connectors on the A/V receiver. 3 Connect a video cable to the VIDEO OUT connector on the cable terminal and the CABLE/TV VIDEO connector on the A/V receiver.
Installation 3-13 Figure 3-6 Connecting an A/V Receiver, TV, and VCR DCT3412 Installation Manual
3-14 Installation Recording Your Connections Use this diagram to record the home entertainment component connections. You can use this diagram to reconnect your system if you move the equipment or add new equipment. Disconnect the power from the cable terminal before connecting or changing cable connections. Do not place another component or object on top of the cable terminal.
Installation 3-15 Installing the Optional IR Blaster The optional IR Blaster provides control of the subscriber VCR from the terminal. It consists of a low-power infrared transmitter attached to a six-foot cord and a mounting bracket. The mounting bracket is a clear plastic holder that has a pad of adhesive tape that enables you to install the IR Blaster near the VCR IR receiver. A mini-pin connector at the end of the cord connects the IR Blaster to the terminal.
3-16 Installation Connecting the IR Blaster To connect the IR Blaster: 1 Fit the transmitter into the mounting bracket (refer to Figure 3-7). 2 Plug the mini-pin connector into the IR jack on the rear panel: Figure 3-8 IR Blaster installed 3 Remove the adhesive tape cover from the mounting bracket. 4 Position and press firmly to attach the mounting bracket to the IR receiver on the VCR. Be careful to route the wire so that it does not prevent loading tapes.
Installation 3-17 Data Device Connections The DCT3412 provides optional high-speed data services such as Internet access, USB, Ethernet, and more. The functionality of each data device port requires, and depends on, installed application software. The DCT3412 Phase III rear panel provides the following data ports: USB 2.0 Can be used to daisy-chain USB devices such as printers and storage devices, or to interface with keyboards, joysticks, and other USB PC peripherals.
3-18 Installation Table 3-1 LED displays and OOB frequencies Display Frequency Description dl N/A OOB network download in progress EF N/A Erasing Flash memory FP N/A Flash memory is being programmed ____ N/A Network download complete Hunt N/A Hunting for OOB frequency FR 1 75.25 MHz Attempting to lock on frequency 1 FR 2 104.20 MHz Attempting to lock on frequency 2 FR 3 72.75 MHz Attempting to lock on frequency 3 FR 4 92.25 MHz Attempting to lock on frequency 4 FR 5 98.
Installation 3-19 Boot Cycle Error Codes If hardware or software problems occur, the terminal displays error codes on the LED display.
3-20 Installation Code Description When Error Occurs Action Required during attempted download operator Eb15 No matching Platform ID found After cycling twice through the OOB frequencies (LED then displays Eb 02, indicating the software object download was unsuccessful.
Installation 3-21 For the best standard and HD viewing: 1 Power off the DCT3412 and then immediately press the MENU key on the front panel.
3-22 Installation Setting Description 4:3 Override Sets the display format for 4:3 standard-definition programming. If the Y Pb Pr Output is set to 1080i, 720p, or 480p, this setting defaults to 480i. If the Y Pb Pr Output is set to 480i, this setting defaults to OFF and cannot be changed. Options are: OFF displays standard-definition programs having a 4:3 aspect ratio in wide screen format. On an HDTV, black bars display on the left and right of the picture.
Installation 3-23 Setting Description Restore All Defaults To reset all User Settings to their defaults, select this option and press the ► key. For HDMI only, when you first connect a TV to the DCT* using the HDMI connection, the TV and the DCT* exchange information to automatically determine the best possible TV TYPE and HDMI/YPbPr OUTPUT settings.
3-24 Installation Additional HDMI Settings If an HDMI TV or home theater receiver is connected to the HDMI port, you can display the Additional HDMI Settings screen. These settings are set based on the preferred settings of the display device when initially connected to the set-top. These settings are not available if a DVI device is connected to the set-top using an HDMI-to-DVI adapter.
Section 4 Diagnostics This section describes the diagnostics that confirm proper installation, including: Checking error states and signal integrity Identifying the cable terminal on the network Verify communications with the headend Diagnostics are displayed on the on-screen display (OSD) and front-panel LEDs. For the diagnostics described in this section: All indicators are in decimal notation, unless otherwise noted.
4-2 Diagnostics Using the Diagnostics To use the diagnostics: 1 Ensure that the DCT3412 is installed with the base platform or Thin Client software and that it is connected to an AC outlet. 2 Press POWER and immediately press SELECT to enable diagnostic mode.
Diagnostics 4-3 d01 General Status This diagnostic displays system status information on the OSD and LED. The information is updated each time the diagnostic is displayed.
4-4 Diagnostics d02 Purchase Status This diagnostic displays the status of subscriber event purchases on the OSD and LED.
Diagnostics 4-5 d03 Out-Of-Band (OOB) Status This diagnostic indicates the out-of-band control channel status. The information is updated every 5 seconds. OOB DIAGNOSTIC OOB FREQUENCY: 075.25 MHz CARRIER LOCK: YES DATA: YES EMM DATA: YES SNR: 22.
4-6 Diagnostics Field Description SNR When carrier lock has been established, displays an estimate of the carrier signal-to-noise ratio in dB, with an explanation: AGC GOOD — Good value FAIR — Marginal signal level; check the signal POOR — Unusable signal INVALID — Invalid SNR value When carrier lock has been established, displays an estimate of the AGC as a percentage, with an explanation: GOOD — Good value FAIR — Marginal signal level; check the signal POOR — Unusable signal INVA
Diagnostics 4-7 Figure 4-5 LED display for in-band diagnostic Data activity indicator P MUTE IB diagnostic indicator MUTE Carrier lock indicator (L = locked, U = unlocked) The In-Band Status fields are: Field Description Mode The values displayed on the OSD are: Carrier Lock Data SNR OSD LED Description YES NO L U Carrier locked Carrier not locked Indicates whether data is being carried on the in-band stream.
4-8 Diagnostics d05 Unit Address This diagnostic displays the unit address: UNIT ADDRESS TVPC INSTALLED NO UNIT ADDRESS: 123-45678-90123-456 OOB ADDRESSES: NETWORK: 123-45678-90123-456 MULTICAST 16 ADDRESS FOR: 0x0000 0x0000 0x0000 0x0000 nnnn MAC ADDRESSES: DOCSIS: xx xx xx xx xx xx Ethernet: xx xx xx xx xx xx 1394: xx xx xx xx xx xx USB: xx xx xx xx xx xx Settop: xx xx xx xx xx xx Figure 4-6 LED display of a unit address P MUTE P MUTE P MUTE P MUTE P MUTE DCT3412 Installation Manu
Diagnostics 4-9 The Unit Address fields are: Field Description TvPC Installed Indicates whether the TVPC renewable security system is installed: Unit Address YES — TvPC is installed NO — TvPC is not installed A unique decimal number that indicates the unit address or physical address. OOB Addresses Network The DCT3412 network address displayed in decimal format. Multicast 16 Address For Specifies the stream to which the OOB multicast 16 addresses are assigned.
4-10 Diagnostics d06 Current Channel Status This diagnostic displays a status of the last attempted tuned channel on the in-band stream. The channel type determines the status display. This is an example for a digital channel: CURRENT CHANNEL STATUS PRIMARY A/V SOURCE IB TUNER 1 IB TUNER 1 TYPE: DIGITAL aaa 0xbb INBAND FREQUENCY: 199.
Diagnostics 4-11 The Current Channel status fields are: Field Description Type Indicates that the channel is digital: aaa OSD LED Description DIGITAL d Digital Displays the encryption mode for the channel on the OSD and LED. It is updated every 5 seconds. For a digital channel: ENC − encrypted UNE − unencrypted CLR − clear bb (Digital channels only) The current epoch authorization reason is displayed in the hexadecimal format 0xbb on the OSD and LED.
4-12 Diagnostics Field Description RC Flag Displays whether the broadcast flag is present: CIT N/A — the value is invalid or cannot be retrieved 1 — set 0 — not set N/A — the value is invalid or cannot be retrieved The digital rights management valid flag bit: RS 1 — the flag is present/enabled The constrained image trigger as delivered in the PRK or the Set DRM API: DRM 0 — no flag/not defined 1 — set 0 — not set N/A — the value is invalid or cannot be retrieved The retenti
Diagnostics 4-13 d07 RF Modem (Upstream) This diagnostic displays the RF modem status, if an RF modem is installed in the DCT3412. The information is updated each time this diagnostic is displayed. RF MODEM STATUS: CONFIGURED CENTER FREQUENCY: 9.
4-14 Diagnostics d08 Code Modules This diagnostic includes information about the firmware loaded in flash memory and all non-volatile code versions installed on the DCT3412. When the native suite is running, the diagnostics of the application operating system and all associated objects should be accessible. ASTB INVD Boot Code: 05.04 Platform Built: Version: 12.09 Mar 24 2005 13:16:16 Digital Secure Processor: M02 Object Ver Status ID ASMS____ 66.04 ENABLED 0881 ___CONFIG 50.
Diagnostics 4-15 The Code Modules fields are: Field Description Boot Code The boot code version in ASCII format Version The firmware version and build date in ASCII format Digital Secure Processor The digital secure processor version in ASCII format Downloadable Object Information Table Lists all objects loaded, or being loaded, onto the DCT3412 in ASCII format. The information displayed for each object depends on the running environment.
4-16 Diagnostics d09 Memory Configuration This diagnostic displays the DCT3412 memory configuration. The information is updated when you display the diagnostic. MEMORY CONFIGURATION SYSTEM RAM: 128 MB FLASH: 16 MB NVRAM: 256 KB There is no LED display for this diagnostic. The Memory Configuration fields are: Field Description System RAM The allocated system RAM in MB. Flash The allocated flash memory in MB. NVRAM The allocated NVRAM in KB.
Diagnostics 4-17 d11 Interface Status The Interface Status diagnostic displays when running in base platform or Thin Client. There is no LED display. The information on the OSD is updated when you display the diagnostic.
4-18 Diagnostics Field Description Hard Drive Status INST (installed) or NOT INST (not installed) Smart Card INST (installed) or NOT INST (not installed) HDMI Port If a device is connected to the HDMI port only, the following diagnostics display to help troubleshoot the HDMI interface. They all display “N/A” if no device is connected to the HDMI port or the value is invalid or cannot be retrieved. Device Connected Indicates whether a device is connected to the HDMI port — Yes or No.
Diagnostics 4-19 d12 User Setting Status This diagnostic displays the user settings. The format may vary. The information on the OSD and LED is updated when you display the diagnostic.
4-20 Diagnostics Field Description 4:3 Override The display format used for 4:3 standard-definition programming. If the YPbPr Output is set to 1080i, 720p, or 480p, this setting defaults to 480i. If the YPbPr Output is set to 480i, this setting defaults to OFF and cannot be changed. Options are: OFF displays non-high-definition programs having a 4:3 aspect ratio in wide screen format. On an HDTV, black bars display on the left and right of the picture.
Diagnostics 4-21 d13 DVR/Hard Drive Status This two-page diagnostic displays the DVR and hard-drive status.
4-22 Diagnostics The DVR/Hard Drive Status fields are: Field Description Enabled Indicates whether the DVR is enabled, based on the DCT3412 Connected State (CONNECTED or DISCONNECTED) and resource availability (resource authorized; hard disk installed and functional): OSD LED Description True En DVR enabled False Un DVR disabled Stream Indexer Ver. The stream indexer version number, without leading zeros; for example, version 0000000065 is displayed as “65” Content Record Ver.
Diagnostics 4-23 d14 DOCSIS Status This three-screen diagnostic displays status information for the embedded cable modem (ECM): DOCSIS STATUS DOCSIS Enabled: YES Acquire DS Channel: YES Obtain US Parameters: YES Establish IP Connectivity: YES Obtain Configuration File: YES eCM Registered: YES Network Access: YES Initialize BPI: YES System Up Time: xxx Days xx Mins xx Hours xx Seconds IP Addresses Cable Modem xxx.xxx.xxx.xxx Set-Top Box xxx.xxx.xxx.
4-24 Diagnostics DOCSIS ^^^ Scroll Up ^^^ MAC Addresses Cable Modem xx.xx.xx.xx.xx.xx Set-Top Box xx.xx.xx.xx.xx.xx Downstream Channel Carrier Lock YES Frequency xxx LKC: xxx Mode: QAM 256 Power Level: xxx SNR: xx.x Upstream Channel Frequency xx Mode: QAM 128 Channel ID: xxx Power Level: xxx Symbol Rate: x.xxx Page 2 of 3 vvv Scroll Down vvv DOCSIS ^^^ Scroll Up ^^^ Known MAC Addresses xx.xx.xx.xx.xx.xx xx.xx.xx.xx.xx.xx xx.xx.xx.xx.xx.
Diagnostics 4-25 The fields are: Field Description DOCSIS Enabled For a DOCSIS-enabled set-top, YES. Otherwise, NO.
4-26 Diagnostics Field Description Downstream Channel (carries data from the headend to the set-top) Carrier Lock YES — The cable modem is locked to a DOCSIS downstream channel. NO — The cable modem is not locked to a downstream channel. N/A — The value is invalid or cannot be retrieved, or DOCSIS is not enabled. Frequency The center frequency of the channel to which the DOCSIS downstream channel receiver is tuned. It can be 54 to 860 MHz.
Diagnostics 4-27 d15 Application Specific Information This diagnostic displays information about application servers: APPLICATION SPECIFIC INFORMATION NO ADDITIONAL INFORMATION SERVER1 NAME: SRVR 1 IP ADDR: SERVER2 NAME: SRVR 2 IP ADDR: SERVER3 NAME: SRVR 3 IP ADDR: SERVER4 NAME: SRVR 4 IP ADDR: SERVER5 NAME: SRVR 5 IP ADDR: The fields are: Field Description Server# Name The application server name of up to 14 alphanumeric characters. It is blank if the value is invalid or no value can be retrieved.
4-28 Diagnostics Figure 4-10 Interactive status LED display P MUTE P MUTE The Interactive Status fields are: Field Description IP Address The IP address in dotted-decimal format xxx.xxx.xxx.xxx assigned by the NC 1500 to the DCT3412. 0.0.0.0 is displayed if the IP address is not configured or unknown. UPM The upstream modem address value is the same as the terminal ID assigned by the DAC 6000. It is a unique, system-generated eight-digit integer between 1 and 16777215.
Diagnostics 4-29 Field Description MAC Abort Cntr This counter increments every time the MAC layer reaches the cell abort count limit. It is reset by the successful upstream transmission of a cell – for example, when the DCT3412 receives an ACK. If the counter reaches the MAC abort count limit, the DCT3412 assumes the MAC layer is unavailable due to noise, congestion, or some other problem.
Section 5 Troubleshooting This section provides troubleshooting guidelines. If problems still occur after performing the diagnostics, call the TRC for assistance as described in Section 1, “Introduction.” Problem Possible Solutions The cable terminal will not power on The cable terminal may have received a software update and may not power on while the new software is being installed. Try again in a few minutes. Verify that the AC power cord is connected to the cable terminal and an AC outlet.
5-2 Troubleshooting Problem Possible Solutions There is no video on the TV screen Verify that the TV is powered on and set to the appropriate input source for the cable terminal. Verify that the cable terminal is powered on and tuned to an authorized cable channel. Verify that all video cables between the cable terminal and the TV are firmly connected. Verify that the coaxial cable feed is firmly connected to the cable terminal and the wall jack.
Troubleshooting Problem Possible Solutions There are black bars on all four sides of the picture This may occur on a 4:3 TV if the 4:3 OVERRIDE setting is OFF. To set 4:3 SD programming to fill the screen, depending on the capabilities of the TV, set 4:3 OVERRIDE to 480i or 480p. 5-3 This may occur on a 16:9 TV if the active video for an SD broadcast is in letterbox format. To confirm, wait for a commercial or look for a graphic, such as a network logo.
Appendix A Specifications Input frequency (video and DOCSIS) 54 to 864 MHz HRC/IRC frequency assignments Downloadable Number of channels 136 carriers Digital Input digital average level More than 1 channel per carrier, content dependent 64 QAM: –15 to +15 dBmV 256 QAM: –12 to +15 dBmV Data carrier QPSK-modulated carrier Frequency Agile Receiver 70 – 130 MHz Bandwidth 1.
Appendix B Connection Record To ease reconnection if equipment is moved or added to the system, you can use a copy of this or a similar diagram to record the connections between components for the subscriber: Figure B-1 Connection record Before connecting or changing cable connections, disconnect the power from the DCT3412.
Abbreviations and Acronyms AGC automatic gain control ASTB Advanced Set-top Box BPI Baseline Privacy Interface (DOCSIS) CRC cyclic redundancy check CSR Customer Service Representative DAC 6000 Digital Addressable Controller 6000 DOCSIS Data Over Cable Service Interface Specification DRAM dynamic random access memory DVI Digital Video Interface for HDTV DVR Digital Video Recorder ECM embedded cable modem (in a cable terminal) EDID Extended Display Identification Data EMM entitlement
Abbreviations and Acronyms-2 SNR signal-to-noise ratio S/PDIF Sony Philips Digital Interface Format TCP/IP Transmission Control Protocol/Internet Protocol TRC Technical Response Center TvPC TV PassCard USB Universal Serial Bus VOD video on demand Y Pb Pr component video connectors for HDTV DCT4312 Installation Manual
