evertz hd9084 Instruction Manual
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evertz hd9084 Instruction Manual

Hd/sd dtv caption encoder
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© Copyright 2002 - 2013
EVERTZ MICROSYSTEMS LTD.
5288 John Lucas Drive,
Burlington, Ontario,
Canada, L7L 5Z9
Phone:
905-335-3700
Tech Support:
905-335-7570
Fax:
905-335-3573
Sales:
sales@evertz.com
Tech Support:
service@evertz.com
Web Page:
http://www.evertz.com
Version 1.20, November 2013
The material contained in this manual consists of information that is the property of Evertz
Microsystems and is intended solely for the use of purchasers of the HD9084 Caption Encoder. Evertz
Microsystems expressly prohibits the use of this manual for any purpose other than the operation of the
HD9084 caption encoder.
All rights reserved.
No part of this publication may be reproduced without the express written
permission of Evertz Microsystems Ltd. Copies of this guide can be ordered from your Evertz products
dealer or from Evertz Microsystems.
Model HD9084
HD/SD DTV Caption Encoder
Instruction Manual

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  • Page 1 The material contained in this manual consists of information that is the property of Evertz Microsystems and is intended solely for the use of purchasers of the HD9084 Caption Encoder. Evertz Microsystems expressly prohibits the use of this manual for any purpose other than the operation of the HD9084 caption encoder.
  • Page 2 This page left intentionally blank...

  • Page 3: Important Safety Instructions

    IMPORTANT SAFETY INSTRUCTIONS The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated “Dangerous voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (Servicing) instructions in the literature accompanying the product.
  • Page 4 WARNING Changes or Modifications not expressly approved by Evertz Microsystems Ltd. could void the user’s authority to operate the equipment. Use of unshielded plugs or cables may cause radiation interference. Properly shielded interface cables...
  • Page 5 NOTICE TO MODEM USERS IN THE USA NOTE The HD9084 Caption Encoder complies with the FCC Rules Part 68. The caption encoder is designed to be used on standard device telephone lines. It connects to the telephone line by means of a standard jack called the USOC RJ11C and should be connected to the telephone network with a FCC compliant telephone cord and modular plug.
  • Page 6 This page left intentionally blank...

  • Page 7: Revision History

    HD9084 HDTV Caption Encoder Manual REVISION HISTORY REVISION DESCRIPTION DATE Preliminary Version Sep 2002 Revised Preliminary versions Oct 2002 First Release version Jan 2003 Revised Edition Jun 2003 Revised Edition Dec 2003 Revised Edition Feb 2004 Updated menu structure, 708 Services Dec 2005 1.9.1...
  • Page 8 Evertz products are for informational use only and are not warranties of future performance, either expressed or implied. The only warranty offered by Evertz in relation to this product is the Evertz standard limited warranty, stated in the sales contract or order confirmation form.

  • Page 9: Table Of Contents

    HD9084 HDTV Caption Encoder Manual TABLE OF CONTENTS 1. OVERVIEW ....................1-1 1.1. HOW TO USE THIS MANUAL ....................1-1 2. INSTALLATION ..................2-1 2.1. Rear Panel ..........................2-1 2.1.1. Program Video Inputs (PGM IN) ..................2-1 2.1.1.1. SD SDI ........................2-1 2.1.1.2.
  • Page 10 HD9084 HDTV Caption Encoder Manual 3.1.11. DECODE ........................3-6 3.1.12. PORTS .......................... 3-6 3.1.13. TIME ..........................3-7 3.1.14. GENERAL ........................3-7 3.1.15. PSU STATUS 1 LED ...................... 3-7 3.1.16. PSU STATUS 2 LED (Optional Redundant Power Supply) ..........3-7 3.1.17.
  • Page 11 HD9084 HDTV Caption Encoder Manual 3.4.4. Upstream Caps ........................ 3-21 3.4.4.1. No Input Source ......................3-22 3.4.4.2. HD-SDI Input SRC ....................3-22 3.4.4.3. SD-SDI Input SRC ....................3-22 3.4.4.4. Pass Upstream ......................3-22 3.4.5. SD - HD Translator ......................3-23 3.4.5.1.
  • Page 12 HD9084 HDTV Caption Encoder Manual 3.7.1. Set UTC Time ........................3-34 3.7.1.1. Daylight Saving Time Explained ................3-35 3.7.2. LTC Reader Option ......................3-35 3.7.3. CDP Time Encode ......................3-35 3.8. General Setup Menu ......................3-36 3.8.1. Load Preset ........................3-37 3.8.2.
  • Page 13 Communications and Control ..................... 5-2 5.1.7. Physical ..........................5-2 5.1.8. Electrical ..........................5-2 5.2. UPDATING THE HD9084 FIRMWARE ..................5-3 5.2.1. PART 1: Configuring the Unit for Firmware Upgrades ............5-3 5.2.2. PART 2: Terminal Program Setup ..................5-3 TABLE OF CONTENTS...
  • Page 14 Disabling Teleprompter On Either Modem Or Telnet Connection ........6-3 6.3. Answers to frequently asked questions ................6-4 6.3.1. Can the HD9084 correct “illegal” captions? ................ 6-4 6.3.2. Which Serial Port Should I Connect To? ................6-4 6.3.3. There is No SD-SDI Video Present on the SD-SDI Output ..........6-4 6.3.4.
  • Page 15 HD9084 HDTV Caption Encoder Manual Figures Figure 2-1: Rear Panel of HD9084 ....................2-1 Figure 2-2: Wiring RS-232 DTE Serial Port to Computer ............2-3 Figure 2-3: RS-232 Configuration ....................2-4 Figure 2-4: Wiring RS-422 Tributary Serial Port to RS-422 Master ..........2-5 Figure 2-5: RS-422 Configuration ....................
  • Page 16 HD9084 HDTV Caption Encoder Manual This page left intentionally blank TABLE OF CONTENTS...

  • Page 17: Overview

    HD9084 HDTV Caption Encoder Manual CHAPTER 1: OVERVIEW TABLE OF CONTENTS 1. OVERVIEW ....................1-1 1.1. HOW TO USE THIS MANUAL ....................1-1 OVERVIEW...
  • Page 18 HD9084 HDTV Caption Encoder Manual This page left intentionally blank OVERVIEW...

  • Page 19: How To Use This Manual

    Grand Alliance. The built in HD closed caption decoder allows confidence monitoring of CEA-708 and CEA-608 captions on any Analog monitor. The HD9084 also provides caption shifting for both SD and HD captions via GPI control. This provides compliance with FCC order prohibiting obstruction of weather warning text, which often appears on the bottom of the screen.
  • Page 20 Chapter 5 provides technical information such as the specifications, servicing information and how to update the firmware in the HD9084. Chapter 6 provides a brief setup and troubleshooting guide. Consult this chapter before you call Evertz technical support. Chapter 7 contains a glossary that defines concepts and terms used throughout the remainder of the manual.
  • Page 21 HD9084 HDTV Caption Encoder Manual CHAPTER 2: INSTALLATION TABLE OF CONTENTS 2. INSTALLATION ..................2-1 2.1. Rear Panel ..........................2-1 2.1.1. Program Video Inputs (PGM IN) ..................2-1 2.1.1.1. SD SDI ........................2-1 2.1.1.2. HD SDI ........................2-1 2.1.2. Program Video Outputs (PGM OUT).................. 2-1 2.1.2.1.
  • Page 22 HD9084 HDTV Caption Encoder Manual Figures Figure 2-1: Rear Panel of HD9084....................2-1 Figure 2-2: Wiring RS-232 DTE Serial Port to Computer ............2-3 Figure 2-3: RS-232 Configuration ....................2-4 Figure 2-4: Wiring RS-422 Tributary Serial Port to RS-422 Master ..........2-5 Figure 2-5: RS-422 Configuration ....................

  • Page 23: Installation

    The HD SDI outputs HD SDI video or HD SDI video with 334M captions in the VANC of the HD video signal. A bypass relay comes standard with the HD9084 and is enabled using the front panel controls. Please refer to section 3.1.5 for more information regarding the HD bypass relay.

  • Page 24: Hd Sdi

    “null modem” cable to connect to your computer via RS-232 port. Connecting the HD9084 to an ATSC encoder may require a null modem cable or straight-through cable. Please check with the ATSC encoder manufacturer or ATSC manual for the correct cable type.

  • Page 25: Port C

    Configuring Ports for RS-232 Ports A, B, and C are configured for RS-232 standard from the factory. Setting the HD9084’s serial ports to RS-232 is done by first removing the lid and locating the ribbon cables for Ports A (J31), B(J30), and C(J29) on the motherboard.

  • Page 26: Figure 2-3: Rs-232 Configuration

    Configuring Ports for RS-422 Ports A, B, or C can each be configured for RS-422. Setting the HD9084’s serial ports to RS-422 is executed by first removing the lid and locating the ribbon cables for Ports A(J31), B(J30), and C(J29) on the motherboard.

  • Page 27: Figure 2-4: Wiring Rs-422 Tributary Serial Port To Rs-422 Master

    HD9084 HDTV Caption Encoder Manual Serial I/O Port (A, B, C) Computer “Master” End Male (pins) Female Description DB-9 DB-9 Description Shield Shield Frame Ground Frame Ground Transmit Common Receive Common Transmit - Receive - Transmit + Receive + Receive +...

  • Page 28: Modems

    2.1.5. Modems The MODEM D and MODEM E RJ11 jacks are used to connect the internal modems of the HD9084 to a telephone line, allowing computers at other locations running captioning software to communicate with the HD9084. Use of the MODEM E port requires the HD9084+MDM2 option to be installed in your unit.

  • Page 29: Gpi/O Setup

    3.3V. 2.4. GPI/O SETUP The following features of the HD9084 can be controlled via parallel port: • SD-SDI Field 1 Keyer and Field 2 Keyer: See Video Setup (Section 3.4.2) • HD-SDI VANC Keyer Ctrl: See Video Setup (Section 3.4.3.2) •...

  • Page 30: Typical Hd9084 Configurations

    HD9084 HDTV Caption Encoder Manual 2.5. TYPICAL HD9084 CONFIGURATIONS Figure 2-7: HD VANC SMPTE-334 Configuration Figure 2-8: SMPTE-333 or Grand Alliance Configuration Page 2-8 INSTALLATION...
  • Page 31 HD9084 HDTV Caption Encoder Manual CHAPTER 3: OPERATION TABLE OF CONTENTS 3. OPERATION....................3-5 3.1. Front Panel Controls ......................3-5 3.1.1. Display Panel ........................3-5 3.1.2. HD Keyer On/Off ....................... 3-5 3.1.3. SD Keyer On/Off ........................ 3-5 3.1.4. SHIFT () .......................... 3-5 3.1.5.
  • Page 32 HD9084 HDTV Caption Encoder Manual 3.4.2.3. Field 1 Keyer ......................3-17 3.4.2.4. Field 2 Keyer ......................3-17 3.4.2.5. Setup Shift ........................ 3-17 3.4.2.6. CEA-608 Test Msg ....................3-18 3.4.2.7. VANC CC Line Sel ....................3-18 3.4.2.8. VANC Keyer Ctrl....................... 3-18 3.4.2.8.1.
  • Page 33 HD9084 HDTV Caption Encoder Manual 3.6.1.7. Telnet Login Enable (Port F only) ................3-30 3.6.1.8. Set Telnet Login (Port F only) ................... 3-31 3.6.1.9. Set Telnet Password (Port F only) ................3-31 3.6.2. Port x Permissions (x= A,B,C,D,E,F) ................3-31 3.6.2.1.
  • Page 34 HD9084 HDTV Caption Encoder Manual Figures Figure 3-1: Front Panel Layout ....................3-5 Figure 3-2: GPO Example Using Assert and Deassert Delays ..........3-32 Figure 3-3: Time Setup Menu ....................3-34 Figure 3-4: General Setup Menu ....................3-36 Tables Table 3-1: Upstream Caption Source Selection ................ 3-22 Table 3-2: CEA-708 Decoder Specifications and Limitations ............

  • Page 35: Operation

    Display Panel The display panel consists of a 16 digit alphanumeric display. This allows the user to navigate through different menu systems and to see the status of the HD9084. The display panel is located on the front of the HD9084.

  • Page 36: Panel Lock

    Up Arrow () and Down Arrow () The “up arrow” and “down arrow” are used to scroll through the different menu options of the HD9084. The menus are described in section 0. The  Up Arrow and  Down Arrow are located to the right of the front panel display.

  • Page 37: Time

    HD9084 HDTV Caption Encoder Manual 3.1.13. TIME Pressing the TIME pushbutton repeatedly allows the user to cycle through different Time front panel Displays, described in section 3.2.4. Pressing the TIME pushbutton, then the SETUP pushbutton will enter the Time menu. The Time Menu is outlined in further detail in section 3.7. The LED above the Time pushbutton will illuminate indicating the selection.

  • Page 38: Menu Led

    FAULT LED The FAULT indicator is on when a fault is detected by the HD9084. The indicator is off when the fault is corrected or if no faults are present. Refer to section 3.9 for possible fault conditions. The FAULT LED is located below the front panel display.

  • Page 39: Front Panel Displays

    3.2. FRONT PANEL DISPLAYS The front panel of the HD9084 can show a variety of informative diagnostic displays. These are used to quickly diagnose any problems with the captioning system. To cycle through different display options, press one of the five Menu & Display pushbuttons (VIDEO, DECODE, PORTS, TIME, GENERAL).
  • Page 40 U1: Displays the decoded 608 caption data from upstream field 1, before any caption processing is performed by the HD9084. This display is useful to determine if any captions are valid and present in field 1 on the upstream video source.

  • Page 41: Ports Display

    HD9084 HDTV Caption Encoder Manual 3.2.3. Ports Display Press PORTS repeatedly to cycle through the Ports front panel displays. PORTS C: - - - - T: - Push the PORTS A 232 B 232 C button to cycle example display...

  • Page 42: General Display

    HD9084 HDTV Caption Encoder Manual TIME Local Push the TIME button to cycle mm/dd/yyyy through the display options. TZ = hh:mm dst dso CDP in Local 12:08:49 (example display) Indicates local time. To configure local time, please refer to section 3.7.

  • Page 43: Modem D Or Modem E Cycling

    Indicates the IP address that is currently set. Serial Number Display Displays the serial number hard-coded into the memory of the HD9084. Note that this is not the same serial number as found on the underside of the chassis. 3.2.5.1.

  • Page 44: Menu Overview

    HD9084 HDTV Caption Encoder Manual 3.3. MENU OVERVIEW  Letters in BOLD CAPITALS are reference to front panel pushbuttons. To enter the menu system(s), select a Menu & Display button (VIDEO, DECODE, PORTS, TIME, GENERAL) The LED over the corresponding button illuminates to indicate the current selection. Then press SETUP.

  • Page 45: Video Setup Menu

    HD9084 HDTV Caption Encoder Manual 3.4. VIDEO SETUP MENU The Video Setup menu allows the user to configure the upstream Video standards, SD Captions, HD Captions, Upstream Captions, and the SD-to-HD Translator. To enter the Video setup menu, press VIDEO then press SETUP. Use the UP and DOWN arrow pushbuttons to scroll through the different options as listed in sections 3.4.1 to 3.4.6.

  • Page 46: Video Setup

    3.4.1.1. HD Video Std The HD Video Standard menu allows the user to choose the HD-SDI upstream video standard. The HD9084 currently supports the following HD-SDI standards: • 1080i/ 59.94 (default)/60 • 1080p/ 23.98/ 24/ 29.97/ 30/ 23.98sF • 1035i/ 59.94/60 •...

  • Page 47: Sd Video Std

    This function allows the user to select which line the CEA-608 captions will be available on the downstream 525 line video. The default setting for CEA-608 captions is line 21 for the 525 line video format. The HD9084 is capable of inserting CEA-608 captions on lines 10 through 25 for 525 line video format.

  • Page 48: Test Msg

    3.4.2.6. CEA-608 Test Msg The CEA-608 Test Message is used to test all fields and outputs of the HD9084. This function will provide test messages in Field 1 and Field 2 for the SD-SDI output and up-converted test messages on the HD output.

  • Page 49: Cc Erase Timer

    3.4.2.9. CC Erase Timer The CC Erase Timer control is used to erase the caption display. When enabled, the HD9084 will activate an internal timer and clock the time delay between processing caption data. If caption data is not detected for a period of 15 seconds, the HD9084 will encode a clear caption command. This command will be used by downstream decoders to clear the caption display.

  • Page 50: Vanc Keyer Ctrl

    CEA-708B. Service 3: Service 3 tests caption positioning using a "bouncing Evertz Logo" test. The Evertz Logo is moved around the screen to all possible caption position points. Service 4: Service 4 is an on screen hex dump of the caption character set.

  • Page 51: Vanc Dolby Line

    3.4.3.9. VANC Scrubber The default behaviour of the HD9084 is to alter the DID/SDIDs of upstream CDPs to change them to “marked-for-deletion” packets after reading their contents. They are no longer CDPs once the DID/SDID is altered, and will be ignored by downstream caption equipment, but these marked-for- deletion packets will remain encoded in VANC.

  • Page 52: No Input Source

    If the NO INPUT SOURCE option is set to ON, the HD9084 will not process upstream CEA-608 nor CEA-708 captions. If the NO INPUT SOURCE option is set to OFF, the upstream captions processed will be dependent on the setting of the SD-SDI input or the HD-SDI input functions.

  • Page 53: Sd - Hd Translator

    The Service Information Setup allows the user to configure the Caption Service Flags and Language information that is optionally encoded in the Service Infor section of CDPs. Receivers may use the service information generated by the HD9084.  Refer to section 3.4.3.3. for information on how to enable the encoding of the Service Information section in the CDPs.

  • Page 54: Set Language

    Pass Block Section 3.5.5 3.5.1. OSD Display Mode The OSD DISPLAY MODE option allows the user to select which OSD feature to enable. The HD9084 is capable of displaying the following information: CEA-608 captions and CEA-708 captions. OPERATION Page 3-24...

  • Page 55: Osd Transparency

    The HD9084 is equipped with a CEA-608 Decoder which provides on-screen display of CEA-608 captions on the Composite monitoring output of the HD9084. The CEA-608 decoder is capable of displaying one CC service, one text service, and XDS packets simultenously. The CEA-608 decoder is capable of decoding all XDS packets.

  • Page 56: Xds Display

    3.5.4. 708 Decoder The HD9084 is equipped with a CEA-708 Decoder which provides on-screen display of HD captions on the Composite monitoring output of the HD9084. The user can select which CEA-708 service to decode (service 1 to 15) via the Decode menu. To choose the service to decode, scroll to 708 DECODER and press SELECT.

  • Page 57: Pvr Data Block

    HD9084 HDTV Caption Encoder Manual • Supports parsing the entire code space as specified in section 7 of the standard, but due to font limitations, the glyphs for the G0 and G1 code Characters spaces are not complete. • Support for the full eight windows.

  • Page 58: Ports Setup Menu

    HD9084 HDTV Caption Encoder Manual 3.6. PORTS SETUP MENU SELECT SELECT SELECT SETUP SETUP PORTS Port x Setup then Port x Mode Control-A default (x=A,B,C,D,E,F) For other options SETUP see Table 3-3. Section 3.6.1 Section 3.6 1200, 2400, 9600, 14400, 19200,...

  • Page 59: Port X Setup (X= A,B,C,D,E,F)

    HD9084 HDTV Caption Encoder Manual The Ports Menu allows the user to configure the input/output settings of Ports A through F. Ports A, B, and C are RS232/422 serial ports, Ports D and E (optional) are telephone modems, and Port F is a telnet server via the Ethernet port.

  • Page 60: Port X Baud

    This allows the port to reset automatically if the connection is lost. The timeout period is adjustable from 1 to 31 minutes. Operators should set this to be longer than the longest expected time that a remote captioner may sit without sending any captions to the HD9084, such as through a commercial segment.

  • Page 61: Set Telnet Login (Port F Only)

    HD9084 HDTV Caption Encoder Manual The default setting is disabled. See sections 3.6.1.8 and 3.6.1.9 for setting the login name and password text. 3.6.1.8. Set Telnet Login (Port F only) This control sets the login name that is used when telnet login and password authentication is enabled.

  • Page 62: Gpi Shift Lines

    HD9084 HDTV Caption Encoder Manual 3.6.5. GPI Shift Lines This control adjusts the number of rows to move the captions when the GPI Caption Shift feature is enabled. Options are 2, 3 or 4 rows. 3.6.6. Modem Speaker An onboard modem speaker has been provided for monitoring modem activity, to verify that the modem is connecting properly during dial-up captioning.

  • Page 63: 3.6.7.4. Gpo 1 To 4 Stimulus

    HD9084 HDTV Caption Encoder Manual 3.6.7.4. GPO 1 to 4 Stimulus The HD9084 offers different stimuli to assert a given GPO. This control defines what condition will cause the GPO to become asserted Possible stimuli include: • Disabled • ½ Hz Wfm •...

  • Page 64: Set Utc Time

    HD9084 HDTV Caption Encoder Manual SELECT SELECT TIME SETUP UTC - > hh:mm:ss then Set UTC Time Date mm/dd/yy SETUP Time Zone = hh:mm Section 3.7.1 Section 3.7 *LTC Time Setup UTC Time Local Time (scroll up/down) Section 3.7.2 Leitch...

  • Page 65: 3.7.1.1. Daylight Saving Time Explained

    HD9084 HDTV Caption Encoder Manual desired settings have been altered. Press SELECT to skip configuring a setting. Once the user has cycled through the UTC menu, SET UTC TIME will be displayed on the front panel. Press SETUP to exit this level.

  • Page 66: General Setup Menu

    The General Setup menu has the following options: Load and store presets, reset the unit, upgrade the firmware, and check the current version of firmware on the HD9084. To enter the General Setup menu, press GENERAL then press SETUP. Use the UP and DOWN arrow pushbuttons to scroll through the different options.

  • Page 67: Load Preset

    3.8.3. Factory Reset The Factory Reset option is used to set the HD9084 back to the factory default setting. To reset the HD9084, enter the general menu and use the UP and DOWN arrow pushbuttons to scroll to the FACTORY RESET option. Press SELECT to enter the FACTORY RESET option. To reset the unit, the user must press SHIFT + SELECT in order to reset the unit to factory settings.

  • Page 68: Ip Address Source

    The dynamic option should be used when a DHCP server will assign the IP address of the HD9084. The static option should be used if a dedicated IP address will be assigned to the HD9084. The default setting for this control is dynamic.

  • Page 69: Info Msg Setup

    Upgrade Firmware The HD9084 can be upgraded in one of two ways. The first method is via the front panel menu system. Please refer to section 5.2 for full upgrade instructions. The user can also power cycle the unit causing the system to enter the boot loading application routine.

  • Page 70: Front Panel Informative Messages

    Non-fatal CDP error messages are listed in Table 3-6. These errors indicate corrupt CDP’s before any processing by the HD9084. The HD9084 can account for these problems and properly clean and re- format the data on the output. This is done automatically and troubleshooting will not be required.

  • Page 71: Input Caption Fault Messages

    Critical/fatal error messages are listed in Table 3-7. These errors indicate invalid/corrupt CDP’s before any processing by the HD9084. Troubleshooting needs to occur physically upstream of the HD9084. These errors are unrecoverable and the CDP will be discarded entirely on the output of the HD9084. CDP BAD SECTION Indicates an unknown section ID has been encountered.

  • Page 72: Dolby Metadata Fault Messages

    This error will appear when serial port C is placed in “Dolby Metadata DOLBY PACKET MISSING In” mode of operation, and Dolby Metadata packets are not detected. No packets will be inserted until the HD9084 detects Dolby Metadata. Table 3-10 : Dolby Metadata Faults 3.9.7.
  • Page 73 HD9084 HDTV Caption Encoder Manual CHAPTER 4: CONTROL-A SERIAL PROTOCOL TABLE OF CONTENTS 4. CONTROL-A SERIAL PROTOCOL ............4-1 4.1. COMMAND QUICK REFERENCE ................... 4-1 4.2. COMMAND SYNTAX DESCRIPTION ..................4-2 4.2.1. Special Characters ......................4-2 4.2.2. Parameters ........................4-3 4.2.3.
  • Page 74 HD9084 HDTV Caption Encoder Manual 4.6.4. Alter Port Active Maps ..................... 4-21 4.6.5. Reset Port ........................4-22 4.7. GPI Message Inject ....................... 4-22 4.7.1. Managing Message Text ....................4-22 4.7.2. Activating Message Inject ....................4-22 4.7.3. Application Tips ....................... 4-23 Tables Table 4-1: Control-A Command Quick Reference ...............

  • Page 75: Control-A Serial Protocol

    HD9084 HDTV Caption Encoder Manual CONTROL-A SERIAL PROTOCOL The following sections describe the control protocol used by the HD9084 closed caption encoder. It is often referred to as the “Control-A Protocol” because most commands begin with a control-A character. The control-A character is abbreviated as ^A. Section 4.1 provides a quick reference table to the command set.

  • Page 76: Command Syntax Description

    HD9084 HDTV Caption Encoder Manual 4.2. COMMAND SYNTAX DESCRIPTION The Command line shows the required information in bold underlined text. Optional parameters are shown in bold normal text. The default line shows the parameter values that will be invoked if the optional parameter(s) are omitted.

  • Page 77: Parameters

    HD9084 HDTV Caption Encoder Manual 4.2.2. Parameters Some commands use parameters with variable values. The command descriptions use a generic designator to indicate these parameters. The chart below shows each of the designators with their meanings and the permitted values. The values shown are the actual characters to be inserted into the command message.
  • Page 78 HD9084 HDTV Caption Encoder Manual Designator Name Values Description 1 to 8 alphanumeric character article name name Article Name XDS packet Id input as 2 ASCII hex digit class followed by 2 ASCII hex digit type. (cctt). Valid class numbers are: 01, 03, 05, 07, 09, 0B, OD. Leading zeros of the class numbers are optional.

  • Page 79: Flow Control Handshaking

    When the input buffer is nearly empty the caption encoder will transmit an XON character. The HD9084 uses hardware flow control to prevent lost data. The unit will turn off the RS232 RTS signal when the buffer is nearly full, and will turn RTS on when the input buffer is nearly empty.
  • Page 80 If the baud rate of modem Port D/E is changed while the modem is in use, the new baud rate will not take effect until the caller disconnects from the modem. If no parameters are specified, the HD9084 will respond with a report of the communication parameters of all the COMM ports as shown below.

  • Page 81: Reset Encoder

    4.3.4. Monitoring Line 21 Data on the Serial Port This command allows the HD9084 to extract line 21 information from the input or output video and send it out the serial port. Enter a ^G to end monitor mode. Command: ^A5<sp>fx<sp>o<cr>...

  • Page 82: Report Firmware Version

    ^AS<cr> Example results: REMOTE OVERRIDE indicates that the keyer is disabled but video will be passed through the HD9084. EXTERNAL BYPASS indicates the SDI bypass relay has been activated by an external signal. LOCAL BYPASS ON indicates the SDI bypass relay has been activated by the HD9084 menu selection.

  • Page 83: Set / Report Time Of Day Clock

    HD9084 HDTV Caption Encoder Manual Example results: Battery OK 4.3.10. Set / Report Time of Day Clock This command will return the current time of day or will allow the internal clock to be set. The unit will maintain the correct time even through power outages.

  • Page 84: Set / Report Calendar Date

    HD9084 HDTV Caption Encoder Manual America observe Daylight Saving Time according to the following rule: ON in the summer; starting on the second Sunday in March. OFF in the winter; starting on the first Sunday in November. Other parts of the world follow different rules for DST.

  • Page 85: Direct Control State

    HD9084 HDTV Caption Encoder Manual Command: ^A6<sp>fx<cr> ^A6<sp>dc<cr> Default: ^A6<sp>F1<cr> In the first form of the command, the optional parameter fx identifies the field (i.e. all streams in that field) that will be placed in the Null state. In the second form of the command the parameter dc identifies the data stream that will be placed in the Null state.

  • Page 86: Real Time State

    HD9084 HDTV Caption Encoder Manual provides the same processing as for n=3. No non-line 21 codes are transmitted and the control codes are converted (if necessary) to the correct equivalent code for the current video field. Examples: ^A3<cr> Field 1 in Direct Control mode 4 ^A3<sp><cr>...

  • Page 87: Display System Status

    The message can be kept in memory or deleted when you have finished transmitting it. Articles will be lost from the article memory in the event of a power loss. The HD9084 uses an advanced memory allocation scheme that enables it to store a virtually unlimited number of articles at one time. The only requirement is the maximum amount of random access memory available.

  • Page 88: Output Article

    HD9084 HDTV Caption Encoder Manual Default: ^A0<sp>name<sp>T1<sp>9999<sp>D<sp>O<sp>L<cr> The parameter name identifies the name of the article. The article can subsequently be referred to by its name. If the article name already exists, the new article with the same name will replace the previous article.

  • Page 89: Delete Article

    HD9084 HDTV Caption Encoder Manual If the parameter k/d is D, and the article is currently being output, it will not be removed until it has been completely output. Examples: ^A1<sp>Test<sp>T2<sp>5<sp>D<cr> The article called ‘Test” will be placed at the end of the Text 2 output queue. The article will be deleted after it is output 5 times.

  • Page 90: Display Article Status

    HD9084 HDTV Caption Encoder Manual Puts the previously defined articles named TEST and TEST2 into the output queue for Text Channel 1. 4.4.5. Display Article Status This command allows the user to view the list of articles stored in the article memory and display their status..

  • Page 91: Extended Data Services

    The XDS packets are deleted from memory when they have been transmitted the specified number of times. XDS packets will be lost from the encoder’s memory in the event of a power loss. The HD9084 uses an advanced memory allocation scheme that allows it to store a virtually unlimited number of XDS packets at one time.

  • Page 92: Blocking Upstream Xds Packets

    HD9084 HDTV Caption Encoder Manual The XDS article length is checked for the following commonly used articles: Program ID (0101), V-Chip Content Advisory (0105), Station Call Letters (0502), and Time Zone (0704). If the article length is not in the valid range for the packet type, the encoder will reject it. This length checking does not apply to XDS packets from upstream, only XDS articles that are entered using the ^AP command from a serial port.

  • Page 93: Queue Xds Packets

    4.5.5. Inserting XDS Articles into Non-Volatile Memory The HD9084 can store XDS articles in non-volatile memory, so that in case of a power failure, XDS information can be retained. All XDS articles starting with “05” (channel class) and “07” (miscellaneous class) are preserved in non-volatile memory.

  • Page 94: Show Port Permission Maps

    HD9084 HDTV Caption Encoder Manual When multiple ports are permitted access to a particular data type, conflicts will be resolved on a “first come, first served” basis. The caption encoder maintains a list of which ports are active for each data type.

  • Page 95: Show Port Active Maps

    ^AQ PB –XDS –T2 –C2 -C1 T1<cr> ^AQ PC –T2 –C2 -C1 -T1 XDS<cr> These commands show a typical application which places the HD9084 in stream mode, allows modem Port D to process captions in Field 1, allows Port B to process text articles in field 1, and enables Port C for extended data services.

  • Page 96: Reset Port

    This command will reset a port. This command immediately clears the input and output data queues and resets the HD9084 to the Transparent State in Field 1 and Field 2. Article and XDS output queues are not reset by this command. They must be explicitly reset by using the queue articles and queue XDS commands.

  • Page 97: Application Tips

    A mode is set to "Control-A", and port A is granted permission to caption onto CC1. No device may attempt to communicate with the HD9084 via port A at the same time as the CC1 Message Inject feature is enabled.
  • Page 98 HD9084 HDTV Caption Encoder Manual This page left intentionally blank Page 4-24 SERIAL CONTROL PROTOCOL...
  • Page 99 Communications and Control ..................... 5-2 5.1.7. Physical ..........................5-2 5.1.8. Electrical ..........................5-2 5.2. UPDATING THE HD9084 FIRMWARE ..................5-3 5.2.1. PART 1: Configuring the Unit for Firmware Upgrades ............5-3 5.2.2. PART 2: Terminal Program Setup ..................5-3 5.2.3.
  • Page 100 HD9084 HDTV Caption Encoder Manual This page left intentionally blank TECHNICAL DESCRIPTION...

  • Page 101: Technical Description

    HD9084 HDTV Caption Encoder Manual TECHNICAL DESCRIPTION 5.1. SPECIFICATIONS 5.1.1. HDTV Serial Digital Video Input Standard: SMPTE 292M 1.485 Gb/s 1080i, 1080p, 720p, 1035i, Number of Inputs: Connector: BNC per IEC 169-8 Equalization: Automatic up to 75m @1.5 Gb/s with Belden 1694 (or equivalent).

  • Page 102: General Purpose In/Out

    HD9084 HDTV Caption Encoder Manual 5.1.5. General Purpose In/Out Number of Inputs: Number of Outputs: 4 Type: Opto-isolated, active low Connector: Female High Density DB-15 Signal level: +5V nominal 5.1.6. Communications and Control Serial: 3 DB-9 male RS232 /422 selectable 1200 baud to 57.6 kbaud...

  • Page 103: Updating The Hd9084 Firmware

    PART 1: Configuring the Unit for Firmware Upgrades Connect the null modem cable to PORT A on the rear of the HD9084, and the other end of the null modem cable to the communication port on the rear of the computer.

  • Page 104: Power Cycle Upgrade Procedure

    PART 4: Uploading the New Firmware Upload the “.bin” file supplied from Evertz using the X-Modem transfer protocol of your terminal program. If you do not start the upload within 10 minutes the HD9084 Boot code will time out. ...

  • Page 105: Power Cycle Complete Upgrade

    Replacing the Battery The HD9084 is fitted with a 3V 20mm diameter Lithium battery type CR2032. This battery is used to power the system time clock while power is removed from the unit. If the unit is not keeping time properly when it is powered down, the battery should be replaced according to the procedure outlined in section 5.3.2.1.

  • Page 106: Safety Guidelines And Precautions Concerning The Use Of 3V Lithium Batteries

    HD9084 HDTV Caption Encoder Manual CAUTION Danger of explosion if battery is incorrectly replaced Replace only with the same or equivalent type 5.3.2.1. Safety Guidelines and Precautions concerning the Use of 3V Lithium Batteries Please observe the following warnings strictly. If misused, the batteries may explode or leak, causing injury or damage to the equipment.
  • Page 107 Disabling Teleprompter On Either Modem Or Telnet Connection ........6-3 6.3. Answers to frequently asked questions ................6-4 6.3.1. Can the HD9084 correct “illegal” captions? ................ 6-4 6.3.2. Which Serial Port Should I Connect To? ................6-4 6.3.3. There is No SD-SDI Video Present on the SD-SDI Output ..........6-4 6.3.4.
  • Page 108 HD9084 HDTV Caption Encoder Manual This page left intentionally blank TROUBLESHOOTING...

  • Page 109: Configuration And Troubleshooting

    ATSC MPEG 2 Video SMPTE 333M OR w/ EIA-708 Captions Grand Alliance ATSC (SMPTE 310M) Encoder RS232 HD SDI Video with EIA-708 334M Captions (SMPTE 292M) HD9084 Caption Encoder HD9084 Closed Caption Applications Figure 6-1 : HD9084 Typical Applications TROUBLESHOOTING Page 6-1...

  • Page 110: Parallel Gpi/O Port Example Applications

    It is straight-forward to fabricate a DB15 plug with wires soldered across certain pins to make a custom “GPI/O dongle” for use with the HD9084 Parallel I/O connector. This can be used to implement new features not otherwise available in the HD9084. In the follwing example applications, the GPI and GPO pins were selected arbitrarily;...

  • Page 111: Disabling Teleprompter On Either Modem Or Telnet Connection

    A teleprompter is usually connected to one of the RS-232 communication ports of the HD9084. Using the “Port x Enable” menu settings, the HD9084 has the ability to automatically disable this port when a remote live captioner is connected to either modem Port D/E or telnet Port F. However, only one of these options may be selected at a time.

  • Page 112: Answers To Frequently Asked Questions

    Which Serial Port Should I Connect To? The HD9084 rear panel has three serial ports, labeled A, B and C. Any serial port may be used for typical captioning functions, since they all support the same Control-A serial protocol. All three serial ports are configured from the factory for RS-232 communications, and the pinout is compatible with an off-the-shelf null-modem cable.

  • Page 113: There Is No Hd-Sdi Video Present On The Hd-Sdi Output

    There is No HD-SDI Video Present on the HD-SDI Output The HD9084 includes a HD-SDI video bypass relay to ensure that HD-SDI video is passed, even when the unit is powered-down. Make sure that your HD-SDI source is connected to the BNC connector marked HD-SDI PGM IN, and the primary HD-SDI video output is connected to the BNC connector marked HD-SDI BYPASS PGM OUT.

  • Page 114: Composite Monitoring Output Check

    A null modem cable is used in almost all cases. Avoid using gender changers, “home made” cables, or distribution boxes between the HD9084 and ATSC encoder. Ensure a direct path is provided from the HD9084 to the encoder with a proper working cable.

  • Page 115: What Baud Rate And Port Settings Should I Use

    Captions are not Being Encoded at All If there is no option in the captioning/teleprompter software for the Evertz encoder, configure your software to communicate with an EEG 270, EEG 370 or EEG 470 model Smart Encoder. The Evertz caption protocol is compatible with these units.

  • Page 116: Captions Are Not Being Encoded Correctly

    Captions are not Being Encoded Correctly If there is no option in the captioning/teleprompter software for the Evertz encoder, configure your software to communicate with an EEG 270, EEG 370 or EEG 470 model Smart Encoder. The Evertz caption protocol is compatible with these units.

  • Page 117: My Modem Connection Hangs-Up Unexpectedly

    The firmware release notes will provide some guidance as to whether a firmware upgrade will address your specific problem. 6.4. BEFORE YOU CALL EVERTZ TECHNICAL SUPPORT Check for any product upgrades that may address your problem at the Evertz web site (www.evertz.com) and consult your software vendor. TROUBLESHOOTING Page 6-9...
  • Page 118 HD9084 HDTV Caption Encoder Manual After reviewing the website and calling Evertz customer service, you will be asked for specific technical information, which should be prepared in advance for speedy assistance: • Serial number of unit. • Firmware version of the caption encoder. This is displayed on the front panel display by pressing GENERAL on the front panel of the HD9084 encoder.
  • Page 119 HD9084 HDTV Caption Encoder Manual CHAPTER 7: GLOSSARY TABLE OF CONTENTS 7. GLOSSARY ....................7-1 7.1. Glossary of Standards ......................7-1 7.2. GLOSSARY OF TERMS ......................7-2 GLOSSARY...
  • Page 120 HD9084 HDTV Caption Encoder Manual This page left intentionally blank GLOSSARY...

  • Page 121: Glossary

    HD9084 HDTV Caption Encoder Manual GLOSSARY 7.1. GLOSSARY OF STANDARDS CEA (Consumer Electronics Association): CEA is a professional organization that recommends standards and practices for the U.S. consumer electronics industry. CEA-608: This CEA standard serves as a technical guide for those providing encoding equipment and/or decoding equipment to produce material with encoded data embedded in Line 21 of the vertical blanking interval of the NTSC video signal.

  • Page 122: Glossary Of Terms

    HD9084 HDTV Caption Encoder Manual SMPTE 309M: The SMPTE standard for encoding date information into the user bits of linear time code. SMPTE 333M: The SMPTE standard for serially interfacing captioning equipment with ATSC caption encoders. SMPTE 334M: Assigns addresses to be used to multiplex specific data services such as captioning into the vertical ancillary (VANC) space defined by 291M.
  • Page 123 HD9084 HDTV Caption Encoder Manual BYTE: A complete set of quantized levels containing all the bits. Bytes consisting of 8 to 10 bits per sample are typical in digital video systems. CABLE EQUALIZATION: The process of altering the frequency response of a video amplifier to compensate for high frequency losses in coaxial cable.
  • Page 124 HD9084 HDTV Caption Encoder Manual DST (DAYLIGHT SAVING TIME): The civil time observed when daylight saving time is adopted in a country or region. It is usually standard time + 1 hour. (see also Standard Time) DTVCC: Digital Television Closed Captioning, defined in CEA-708.
  • Page 125 HD9084 HDTV Caption Encoder Manual MODIFIED JULIAN DATE (MJD): The Modified Julian Date is a continuous count of the number of days elapsed since 17 November 1858. It is often more useful than conventional calendar dates for record keeping over long periods of time, since the MJD's of two events can easily be subtracted to determine the time difference in days.
  • Page 126 HD9084 HDTV Caption Encoder Manual VANC: Vertical Ancillary data. Data carried in serial digital video signal (SMPTE 259M-C or 292M), in accordance with SMPTE 291M, in the active portion of scan lines that are outside the active picture area. VBI: Vertical Blanking Interval.

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