Page 1 Web Page: http://www.evertz.com Revision 1.6.6. October 2009 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 8084/8084AD/8085 Closed Caption Encoders. Evertz Microsystems expressly prohibits the use of this manual for any purpose other than the operation of the caption encoder.
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Page 3 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 The 8084 and 8084AD Caption Encoders comply 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 Evertz products are for informational use only and are not warranties of future performance, either express 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 7: Table Of Contents
Models 8084/8084AD/8085 Closed Caption Encoder Manual TABLE OF CONTENTS OVERVIEW..........................1-1 THE CLOSED CAPTION SYSTEM ..................... 1-2 FEATURES..........................1-3 1.2.1 Hardware System Features: .................... 1-3 1.2.2 Serial Digital Video Path Features: .................. 1-4 1.2.3 Component Analog Video Path Features (8084AD only):..........1-4 1.2.4...
Page 8 Navigating the Front Panel Menus -- The Setup Group........... 3-2 3.1.2 Caption Keyer Control Group................... 3-5 3.1.2.1 Keyer Control on 8084AD, 8085 and later 8084 Encoders ........3-5 3.1.2.2 Keyer Control on Early 8084 Encoders ..............3-6 3.1.3 Status Indicator Lights...................... 3-6 3.1.4...
Page 9 Models 8084/8084AD/8085 Closed Caption Encoder Manual 3.5.4 Shifting Caption Text Up using the Parallel Remote Control ......... 3-30 SERIAL COMMAND PROTOCOL ....................4-1 COMMAND CROSS REFERENCE ..................... 4-1 COMMAND SYNTAX DESCRIPTION..................4-2 4.2.1 Special Characters......................4-2 4.2.2 Parameters........................4-2 4.2.3 Flow Control Handshaking ....................
Page 10 Models 8084/8084AD/8085 Closed Caption Encoder Manual 4.7.1 Show Port Permission Maps ..................4-23 4.7.2 Alter Port Permission Maps.................... 4-24 4.7.3 Show Port Active Maps ....................4-25 4.7.4 Alter Port Active Maps....................4-25 4.7.5 Reset Port ........................4-26 TECHNICAL DESCRIPTION....................... 5-1 OVERVIEW..........................
Page 11 Models 8084/8084AD/8085 Closed Caption Encoder Manual 6.1.10 Captions are not being encoded correctly................ 6-3 6.1.11 My 8084AD sometimes drops or repeats caption characters.......... 6-4 6.1.12 The Caption Shift Up GPI is not working properly............6-4 6.1.13 Why has the Keyer Disable GPI stopped working? ............6-4 6.1.14 Why doesn’t my caption encoder have this button/LED/menu item?.......
Page 12 Figure 3-9: Connections to Copy Captions between Video Feeds ..........3-20 Figure 3-10: Reinserting Captions after Video Processing ............3-20 Figure 3-11: 8084 Local Time to UTC Conversion Block Diagram ..........3-26 Figure 5-1: 8084AD Top Level Block Diagram ................5-1 Figure 5-2: Caption Processing Engine (Stream Mode) ..............
Page 13 Models 8084/8084AD/8085 Closed Caption Encoder Manual CHAPTER 1: OVERVIEW OVERVIEW..........................1-1 THE CLOSED CAPTION SYSTEM ..................... 1-2 FEATURES..........................1-3 1.2.1 Hardware System Features: .................... 1-3 1.2.2 Serial Digital Video Path Features: .................. 1-4 1.2.3 Component Analog Video Path Features (8084AD only):..........1-4 1.2.4...
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Page 15: Overview
807X caption encoder line with the latest advances in processor and memory architecture. The Model 8084 Digital Video Closed Caption Encoder provides a cost- effective method of encoding closed captions into the digital video bitstream. It has been designed to meet the needs of both television broadcast and post-production facilities.
Page 16: The Closed Caption System
Text stream T2 is often reserved to carry URL data for WebTV applications. A text article software loader program is supplied on the CD that came with your 8084. It may be used to conveniently upload text articles for insertion into one of the text services.
Page 17: Features
Rack mountable chassis. • 16 digit alphanumeric display, with 8 push buttons. • Parallel remote port for GPI control of six important 8084 functions. • Real-time clock and calendar with battery backup. • Flash ROM program memory for easy in-system-programmable firmware upgrades.
Page 18: Serial Digital Video Path Features
Models 8084/8084AD/8085 Closed Caption Encoder Manual 1.2.2 Serial Digital Video Path Features: • Keys directly into 4:2:2 (525 or 625 line) digital video bitstream. • 8 or 10 bit SDI video resolution supported. • Serial digital video input provides automatic cable equalization on cable lengths up to 200 meters of low loss coax such as Belden 8281.
Page 19: Field Mode Operation: (Legacy Operation)
These articles replace any previously encoded data in the respective channels, and can be simultaneously encoded along with real time caption data. The 8084(AD) ships with a software utility to allow the user to load text articles easily.
Page 20: How To Use This Manual
Glossary of Terms in Chapter 1. Some features described in the manual are specific to either the 8084,8084AD or 8085. Generally the text will identify which features are applicable. Items of special note are indicated with a double box like this.
Page 21: Glossary Of Terms
Models 8084/8084AD/8085 Closed Caption Encoder Manual GLOSSARY OF TERMS AES: (Audio Engineering Society): professional organization that recommends standards for the audio industries. AES/EBU: Informal name for a digital audio standard established jointly by the Audio Engineering Society and the European Broadcasting Union organizations.
Page 22 Models 8084/8084AD/8085 Closed Caption Encoder Manual CLIFF EFFECT: (also referred to as the ‘digital cliff’) This is a phenomenon found in digital video systems that describes the sudden deterioration of picture quality when doe to excessive bit errors, often caused by excessive cable lengths. The digital signal will be perfect even though one of its signal parameters is approaching or passing the specified limits.
Page 23 Models 8084/8084AD/8085 Closed Caption Encoder Manual EBU TECH 3267-E: The EBU recommendation for the parallel interface of 625 line digital video signal. This is a revision of the earlier EBU Tech 3246-E standard that was in turn derived from ITU- R601.
Page 24 Models 8084/8084AD/8085 Closed Caption Encoder Manual ITU: The United Nations regulatory body governing all forms of communications. ITU-R (previously CCIR) regulates the radio frequency spectrum, while ITU-T (previously CCITT) deals with the telecommunications standards. ITU-R601: (This document previously known as CCIR-601).
Page 25 Models 8084/8084AD/8085 Closed Caption Encoder Manual text position on the screen, and set special features such as colour, italics and underline. PIXEL: The smallest distinguishable and resolvable area in a video image. A single point on the screen. In digital video, a single sample of the picture.
Page 26 Models 8084/8084AD/8085 Closed Caption Encoder Manual TRS: Timing reference signals used in composite digital systems. (It is four words long). TRS-ID: Abbreviation for "Timing Reference Signal Identification". reference signal used to maintain timing in composite digital systems. (It is four words long.)
Page 27 CONNECTING THE ENCODER TO A CLOSED CAPTION COMPUTER........2-6 CONNECTING TO AN ATSC ENCODER (8085 only) ............... 2-9 Figures Figure 2-1: 8084 Rear Panel – Early versions ................2-1 Figure 2-2: 8084 Rear Panel – Later versions ................2-1 Figure 2-3: 8084AD Rear Panel....................2-1 Figure 2-4: 8085 Rear Panel......................
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Page 29: Installation
SDI IN. FAULT TALLY OUT: A BNC connector for output of a SMPTE 269M fault tally. The output will be open circuit when the 8084 is processing video normally. The output will be grounded when the unit is bypassed.
Page 30: Preview Video Connections
Models 8084/8084AD/8085 Closed Caption Encoder Manual ANALOG IN: A BNC connector for input of composite analog video signals compatible with the SMPTE 170M standard. Internally terminated by 75 ohms. (8084AD only) ANALOG BYPASS OUT: A BNC connector for output of composite analog video signals compatible with the SMPTE 170M standard.
Page 31: Serial Port / Modem Connections
RS-422 communications. Please refer to Figure 2-8 and Figure 2-9 for typical port pinouts and connections to a computer. Evertz does not recommend altering the jumper settings for port A, as it may make in-field reprogramming very difficult for the user.
Page 32: Parallel Remote Control Connections
Figure 2-5: Parallel GPI Port Pinout Refer to section 3.5 for details on the functions of each parallel port GPI pin. Older 8084 firmware revisions assigned GPI pins 7 and 8 as separate ‘master’ and ‘temporary’ keyer disables. Existing installations using the ‘temporary’...
Page 33: Power Requirements
CONNECTING THE DIGITAL VIDEO 2.4.1 SDI Video Input The 8084 and 8085 require a digital video source to be connected to the SDI video input. The 8084AD does not require an SDI video source when composite video is selected as the caption source.
Page 34: Connecting The Analog Video
CONNECTING THE ENCODER TO A CLOSED CAPTION COMPUTER Figure 2-6 shows the typical connections required when using the 8084AD in conjunction with a computer running captioning software. Connections for the 8084 are similar, but have only the digital video path. Figure 2-7 INSTALLATION Page 2-6...
Page 35: Figure 2-6: Typical Connections To The 8084Ad Caption Encoder
Models 8084/8084AD/8085 Closed Caption Encoder Manual shows the typical connections required when using the 8085 in conjunction with an ATSC encoder and a computer running captioning software. Figure 2-6: Typical Connections to the 8084AD Caption Encoder INSTALLATION Page 2-7 Revision 1.6.6...
Page 36: Figure 2-7: Typical Connections To The 8085 Dtv Caption Encoder
Models 8084/8084AD/8085 Closed Caption Encoder Manual Figure 2-7: Typical Connections to the 8085 DTV Caption Encoder Connect the PORT A, B or C connector of the Closed Caption Encoder to one of the serial ports (typically COM1 or COM2) of your computer. Figure 2-8 below shows the typical cable wiring diagram to connect Port A, B or C and a personal computer.
Page 37: Connecting To An Atsc Encoder (8085 Only)
Models 8084/8084AD/8085 Closed 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 1 -----------------1 Frame Ground Transmit Common 6 -----------------6 Receive Common Transmit - 2 -----------------2 Receive -...
Page 38: Figure 2-11: Atsc Cable Wiring Diagram Port B To Dce Port
Models 8084/8084AD/8085 Closed Caption Encoder Manual The connection to a typical encoder system with a DCE type port is as follows (a standard ‘Direct Connect’ cable can be used): 8085 Port B ATSC Encoder End (DCE) Male Female Description DB-9...
Page 39 Navigating the Front Panel Menus -- The Setup Group........... 3-2 3.1.2 Caption Keyer Control Group................... 3-5 3.1.2.1 Keyer Control on 8084AD, 8085 and later 8084 Encoders ........3-5 3.1.2.2 Keyer Control on Early 8084 Encoders ..............3-6 3.1.3 Status Indicator Lights...................... 3-6 3.1.4...
Page 40 Figure 3-9: Connections to Copy Captions between Video Feeds ..........3-20 Figure 3-10: Reinserting Captions after Video Processing ............3-20 Figure 3-11: 8084 Local Time to UTC Conversion Block Diagram ..........3-26 Tables Table 3-1: Front Panel Data Monitoring in Stream Mode ............3-29...
Page 41 Models 8084/8084AD/8085 Closed Caption Encoder Manual Key Functions in Normal Display Mode Keys Function Relevant Sections SHIFT + Toggle Stream Monitor Display SHIFT + Reset to Transparent State 3.3.12 SHIFT + SELECT Show firmware revision 5.5.3 Menu System Entry SETUP Enter SETUP menu system 3.1.1...
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Page 43: How To Operate The Digital Closed Caption Encoder
Models 8084/8084AD/8085 Closed Caption Encoder Manual HOW TO OPERATE THE DIGITAL CLOSED CAPTION ENCODER AN OVERVIEW OF KEY AND DISPLAY FUNCTIONS Figure 3-1: Original 8084 Front Panel Layout Figure 3-2: Newer 8084 Front Panel Layout Figure 3-3: 8084AD Front Panel Layout...
Page 44: Navigating The Front Panel Menus -- The Setup Group
Models 8084/8084AD/8085 Closed Caption Encoder Manual 3.1.1 Navigating the Front Panel Menus -- The Setup Group The menu systems use the 16 digit alphanumeric display and the Setup key group (SELECT, SETUP, ) to configure the closed caption encoder. There are two menu systems used to configure the closed caption encoder.
Page 45: Figure 3-5: Overview Of The Setup Menu System
Models 8084/8084AD/8085 Closed Caption Encoder Manual does. Some menu items may not be available depending on the options installed in the caption encoder ) VIDEO TYPE Type 422 525 Type 422 625 ) OUTPUT LINE Line = 21 ) MODEM D...
Page 46: Figure 3-6: Overview Of The Engineering Menu System
Models 8084/8084AD/8085 Closed Caption Encoder Manual > PORT A BAUD > PORT D BAUD BaudD = 1200 BaudA = 1200 BaudD = 2400 BaudA = 2400 BaudA = 4800 BaudD = 4800 BaudA = 9600 BaudD = 9600 BaudA = 19200...
Page 47: Caption Keyer Control Group
Models 8084/8084AD/8085 Closed Caption Encoder Manual 3.1.2 Caption Keyer Control Group The 8084AD, 8085 and later 8084 caption encoder models have separate Field 1 and Field 2 caption keyer enable buttons (see section 3.1.2.1). The earlier 8084 encoders have a single global Caption On/Off button, which controls both Field 1 and Field 2 caption keyers (see section 3.1.2.2).
Page 48: Keyer Control On Early 8084 Encoders
Fld 1 and Fld 2 Enable LED’s will indicate if the respective keyer is enabled or not. Software commands received by the 8084(AD) may turn the keyer on or off. SHIFT + CAPTION ON / OFF Locks the caption keyers Off.
Page 49 Models 8084/8084AD/8085 Closed Caption Encoder Manual COMP VIDEO IN When lit, the caption encoder has detected incoming composite analog video of the correct standard. When the LED is flashing, there is a problem such as incorrect video standard, or the video is of poor quality. The 8084AD may still be able to key captions onto poor quality analog video, depending on the severity of the problems.
Page 50: Front Panel Operating Messages
The current local time display shows the local time of the 23:59:59 8084’s real time clock. The clock can be set from the serial port or using the optional LTC input. Please note that the encoder does not automatically change its clock for Daylight Saving Time.
Page 51: Figure 3-7: Front Panel Time Indicators
JAN 15, 2002 The date display shows the local date of the 8084’s real time clock. The date can be set from the serial port or by reading date information that has been encoded into the user bits using the optional LTC input.
Page 52 Models 8084/8084AD/8085 Closed Caption Encoder Manual The following displays may be shown in certain modes of the 8084. In these modes, the normal cycling of the time and date and LN 21 KEYER displays is turned off. LN 21 KEY OFF Keyers are disabled but may be enabled by the computer.
Page 53 SHIFT + This message will alternate with other displays to MODEM D ONLINE indicate that the 8084(AD) is on-line with the built-in modem D. MODEM D DISABLED This message will alternate with other displays to indicate that Modem D is not in auto-answer mode, either because of the menu configuration or parallel port GPI.
Page 54: Setup Menu Items
Models 8084/8084AD/8085 Closed Caption Encoder Manual When in the Setup or Engineering menus, the front panel is used to display the current menu item and selected option. SETUP MENU ITEMS The Setup menu is used to configure the basic operational modes of the Closed Caption Encoder such as selecting which type of video is present, which data channel will be shown on the decoder output, etc.
Page 55: Configuring The Built-In Closed Caption Decoder
ModemD=disabled mode. 3.2.4 Configuring the Built-In Closed Caption Decoder On earlier 8084 models without a dedicated DECODER pushbutton, two Setup menu items are used to configure the operation of the built-in closed caption decoder. DECODER CHANNEL is used to select which channel (stream) the )DECODER CHANNEL decoder will display.
Page 56: Operating The Manual Bypass Relay
Models 8084/8084AD/8085 Closed Caption Encoder Manual U.S. MPAA: N/A, G, PG, PG-13, R, NC17, X, Not Rated U.S. TV-PG: None, TVY, TVY7, TVG, TVPG, TV14, TVMA, None CDN English: Exempt, C, C8+, G, PG, 14+, 18+ CDN French: Exempt, G, 8+, 13+, 16+, 18+...
Page 57: Selecting The Upstream Caption Source (8084Ad Only)
UPSTREAM SOURCE must be set to that video source for the device to work properly. 3.2.7 Inserting “V-Chip” Ratings Locally (8084 and 8084AD) The operator may specify a “V-Chip” XDS program rating packet from the front panel menu system. The encoder may be configured to insert a specified program rating locally, without any computer connection.
Page 58: Inserting A "Default" Program Rating
3.2.7.3 Compatibility With V-Chip Software Automation software, such as the Evertz driver for Louth Automation, MetaCast 2 software, or Evertz XDS Packet Control software, has a higher priority than the local ratings. If external software sends a new program rating to the encoder, the Local V-Chip Timer will automatically revert to the “Insert disable”...
Page 59 Models 8084/8084AD/8085 Closed Caption Encoder Manual PORT A BAUD is used to set the baud rate of the communications >PORT A BAUD port A (similar menu items are available to configure the baud BaudA=1200 rates for ports B and C). Adjust this setting to match the baud BaudA=2400 rate of your computer.
Page 60: Setting The Serial Port Access Permission
The receiving unit does not need to be placed in a special operating mode, and may be another 8084, 8074, an 8075 or an 8070 unit. Figure 3-8 shows a typical application for port echo mode.
Page 61: Figure 3-8: Connections For Port Echo Mode
Figure 3-8: Connections for Port Echo Mode The Funct B CC xmit and Funct B CC recv settings allow the 8084 or 8084AD to be configured as the transmit and receive sides of a “VBI bridge” around video processing equipment. For...
Page 62: Atsc Functions Of Port B (8085 Only)
Models 8084/8084AD/8085 Closed Caption Encoder Manual The VBI Bridge setup will introduce a delay in the captions on the receiver side, typically one to three frames. Other equipment in the SDI video stream also influences the length of this delay.
Page 63 Models 8084/8084AD/8085 Closed Caption Encoder Manual PORT B FUNCTION is used to select the operating mode of the Port B >PORT B FUNCTION serial port. Funct B Normal Funct B ATSC Select Funct B Normal for standard interface to captioning computers and Funct B ATSC GA software.
Page 64: Vertical Shift Of The Caption Line Data
Models 8084/8084AD/8085 Closed Caption Encoder Manual 3.3.5 Vertical Shift of the Caption Line Data It is common for 4:2:2 component to NTSC video encoders to add setup to line 21 regardless of whether there is closed caption information on line 21 or not.
Page 65: Setting The Encoder Clock
Models 8084/8084AD/8085 Closed Caption Encoder Manual This would appear as follows: C12-- T12-- - 3.3.7 SETTING THE ENCODER CLOCK The SET UTC CLOCK menu item allows the user to set the internal real time clock directly from the front panel.
Page 66: Setting The Daylight Saving Time Observance
This is useful for broadcast facilities where Time-of-Day XDS packets are being encoded or updated in the video. This can also be used by V-chip and URL insertion software such as the Evertz MetaCast 2, thus eliminating the need for a time code reader card inside the PC.
Page 67: Configuring The Ltc Daylight Saving Time Support (Ltc Reader Option Installed)
Models 8084/8084AD/8085 Closed Caption Encoder Manual If one of the date modes is selected but the user bits do not contain a valid date, the clock time will be updated and the date will show Jan 1, 2000. When a valid time code source is connected, a letter ‘T’ will appear on the right-hand side of the front panel display while the time is being displayed.
Page 68: Encoding A Test Message
Stored Time Data in Encoder Figure 3-11: 8084 Local Time to UTC Conversion Block Diagram 3.3.10 Encoding a Test Message During system setup and verification it is often desirable to have the caption encoder generate a test message. Data integrity and signal quality of the captioned signal may be verified using the test message.
Page 69: Using The 16 Second Erase Timer
Select Erase timer off to disable the Erase Timer. 3.3.12 CLEARING XDS PACKETS FROM MEMORY In the 8084 and 8084AD, local XDS packets are kept in a non-volatile >CLEAR LOCAL XDS memory and are restored on power up. XDS packets can only be removed...
Page 70: Resetting The Closed Caption Encoder To Factory Defaults
Reset Done 3.3.15 Performing a Front Panel Reset to its Power-On State Sometimes it may be desirable to perform a reset of the 8084(AD) back to its power-on, especially if a communications error has left one port active, which may cause an ACCESS ERROR when another port attempts to caption.
Page 71: Parallel Remote Control Connections
From the factory, this GPI is configured for ‘master’ mode operation. Most users will prefer this configuration. See section 5.3.1 for instructions on changing the DIP switch settings. Older 8084 firmware revisions assigned GPI pins 7 and 8 as separate ‘master’ and ‘temporary’ keyer disables. Existing installations using the ‘temporary’...
Page 72: Enabling The Bypass Relay Using The Parallel Remote Control
Models 8084/8084AD/8085 Closed Caption Encoder Manual In ‘master’ mode, the keyer will be turned off when the Keyer Disable GPI input is low and turned on when this GPI input is high. In ‘temporary’ mode, the keyer will be disabled while the GPI is held low and will remain disabled after the GPI input returns HIGH until the next byte of data is received on any serial remote control port.
Page 73: Serial Command Protocol
Models 8084/8084AD/8085 Closed Caption Encoder Manual CHAPTER 4: SERIAL COMMAND PROTOCOL SERIAL COMMAND PROTOCOL ....................4-1 COMMAND CROSS REFERENCE ..................... 4-1 COMMAND SYNTAX DESCRIPTION..................4-2 4.2.1 Special Characters......................4-2 4.2.2 Parameters........................4-2 4.2.3 Flow Control Handshaking ....................4-5 4.2.4 Break Handling......................... 4-5 4.2.5...
Page 74 Models 8084/8084AD/8085 Closed Caption Encoder Manual 4.6.4 Delete XDS Packet ......................4-22 COMM PORT CONTROL COMMANDS (STREAM MODE) ............. 4-23 4.7.1 Show Port Permission Maps ..................4-23 4.7.2 Alter Port Permission Maps.................... 4-24 4.7.3 Show Port Active Maps ....................4-25 4.7.4...
Page 75: Command Cross Reference
Models 8084/8084AD/8085 Closed Caption Encoder Manual SERIAL COMMAND PROTOCOL The following sections present the command protocol for the 8084, 8084AD and 8085 closed caption encoders. Section 4.1 gives a quick cross reference to the command set. Sections 4.2 to 4.7 give a full description of the commands with examples.
Page 76: Command Syntax Description
Models 8084/8084AD/8085 Closed Caption Encoder Manual COMMAND SYNTAX DESCRIPTION Command line shows required information bold underlined text. Optional parameters shown bold normal text. The default line shows the parameter values that will be invoked if the optional parameter(s) are omitted. Many of the commands use control characters which are indicated by a carat character ‘^’...
Page 77 Models 8084/8084AD/8085 Closed Caption Encoder Manual Designator Name Values Description Field Number Field 1 Field 2 Data Channel Caption Channel 1 Caption Channel 2 Caption Channel 3 Caption Channel 4 Text Channel 1 Text Channel 2 Text Channel 3 Text Channel 4...
Page 78 Models 8084/8084AD/8085 Closed Caption Encoder Manual In cases where the class and type bytes are not sufficient to uniquely distinguish the packets, (such as for 0D05 packets) the first 2 digits of the packet data may also be appended to the end of the edsid. (ccttdd)
Page 79: Flow Control Handshaking
When the input buffer is nearly empty the caption encoder will transmit an XON character. The 8084 and 8084AD also use 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: Command Differences Between Operating Modes (Legacy Operation)
Models 8084/8084AD/8085 Closed Caption Encoder Manual CMD FMT ERROR will also be displayed if the 8084(AD) receives a request to delete an article that has not been defined. It will respond by sending back an error code ‘E4’ to the control port.
Page 81: Reset Encoder
Reset Encoder This command immediately clears the input and output data queues and resets the 8084(AD) 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 82: Set Output Line
4.3.4 Monitoring the Line 21 Data on the Serial Port This command allows the 8084(AD) 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.
Page 83: Report Firmware Version
The caption encoder will respond with message identifying its firmware version and port name. Command: ^A?<cr> Returns Evertz 8084 Ver:CK88D5 U000427 -- Use ^AH{return} for help Port B 4.3.7 Command Help This command returns a help message from the caption encoder.
Page 84: Report Bypass Switch Mode
Models 8084/8084AD/8085 Closed Caption Encoder Manual 4.3.9 Report Bypass Switch Mode This command returns a message that shows the status of the video bypass relay and the caption keyer. Command: ^AS<cr> Example results: indicates keyer is disabled but video will be...
Page 85: Set / Report Calendar Date
Models 8084/8084AD/8085 Closed Caption Encoder Manual Optional parameter to indicate that UTC time is requested or specified by the hh:mm:ss parameter Although the time zone must be entered as hours and minutes, the XDS Time Zone packet will only transmit the time zone hours. This is a limitation of the definition of the time zone packet in EIA-608B.
Page 86: Commands Supported In Stream Operating Mode
Models 8084/8084AD/8085 Closed Caption Encoder Manual Command: ^Ad<sp>mm/dd/yyyy<sp>day of week<sp>U<cr> mm/dd/yyyy Local date or UTC date day of week Numeric day of week. Sunday is day 1 Optional parameter to indicate that UTC date is requested or specified by the mm/dd/yyyy parameter Examples: ^Ad<sp>01/26/2000<sp>4<cr>...
Page 87: Null State
Models 8084/8084AD/8085 Closed Caption Encoder Manual 4.4.2 Null State In the Null state, the encoder will insert Null characters for the selected data stream into line 21. Incoming line 21 video will not be copied through on the data stream.
Page 88: Real Time State
Models 8084/8084AD/8085 Closed Caption Encoder Manual The optional parameter n identifies which variation of the Direct Control state will be used. provides the same processing as n=2. means that legitimate line 21 control codes are aligned and delayed so that the two byte control code pairs are transmitted in the same field.
Page 89: Display System Status
Models 8084/8084AD/8085 Closed Caption Encoder Manual was enabled prior to entering the Real Time State then it will be re-enabled when the Real Time state is terminated. Command: ^A2<sp>dc<sp>rl<sp>Bbl<cr> Default ^A2<sp>C1<sp>3<sp>B15<cr> The parameter dc identifies the data channel that will be placed in the Real Time state.
Page 90: Text Articles (Stream Mode Only)
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 8084 and 8084AD use an advanced memory allocation scheme that allow them to store a virtually unlimited number of articles at one time.
Page 91: Output Article
Models 8084/8084AD/8085 Closed Caption Encoder Manual The parameter o/h identifies whether the article should be placed into the output queue or whether it should just be held in memory for later use. The parameter n/l identifies whether the article should be placed as the first article in the output queue or the last article in the queue.
Page 92: Delete Article
Models 8084/8084AD/8085 Closed Caption Encoder Manual ^A1<sp>Test<sp>T2<sp>9999<sp>H<cr> The article called ‘Test” will have its repeat count change to indefinite. It will not be placed into any of the output queues. 4.5.3 Delete Article This command allows the user to remove an article from all output queues.
Page 93: Display Article Status
Models 8084/8084AD/8085 Closed Caption Encoder Manual 4.5.5 Display Article Status This command allows the user to view the list of articles stored in the article memory and display their status.. The status includes the article name, repeat count, (9999 if infinite) the keep/delete status, and the memory storage needed for the article.
Page 94: Input Xds
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 8084 and 8084AD use an advanced memory allocation scheme that allow them to store a virtually unlimited number of XDS packets at one time.
Page 95: Blocking Upstream Xds Packets
Models 8084/8084AD/8085 Closed Caption Encoder Manual The parameter rc identifies number of times the packet will be repeated. Values of 9999 or FFFF indicate that the packet should be repeated indefinitely. A packet’s repeat count will be decremented each time it is output.
Page 96: Queue Xds Packets
Models 8084/8084AD/8085 Closed Caption Encoder Manual of 9999 and article text consisting of the single character "R", or the equivalent ASCII HEX "52". Examples: ^AP<sp>0701<sp>9999<sp>52<cr> ^AP<sp>0701<sp>9999<sp>R<cr> Both variations block upstream Time Of Day packets ^AP<sp>0701<cr> Allows upstream Time Of Day packets to be passed...
Page 97: Comm Port Control Commands (Stream Mode)
Models 8084/8084AD/8085 Closed Caption Encoder Manual COMM PORT CONTROL COMMANDS (STREAM MODE) The 8084 and 8084AD can allow simultaneous access by all the communication ports to the caption keyers. This can be the effective equivalent of multiple caption encoders, linked in series. By using a single video keyer, these encoder models provide the added advantage of minimizing the delays and the impact on the video quality.
Page 98: Alter Port Permission Maps
Models 8084/8084AD/8085 Closed Caption Encoder Manual PORT A: CF1 CF2 TF1 TF2 XDS PORT B: CF1 CF2 TF1 TF2 XDS PORT C: CF1 CF2 TF1 TF2 XDS PORT D: CF1 CF2 TF1 TF2 XDS OFFLINE This example shows all ports are permitted access to all data types (the factory default setting) and the Port D modem is offline.
Page 99: Show Port Active Maps
Models 8084/8084AD/8085 Closed Caption Encoder Manual 4.7.3 Show Port Active Maps This command will report the active map for each port. The active map controls what port has control of a data type. Command: ^AO<cr> (capital letter ‘O’) Example result:...
Page 100: Reset Port
This command will reset a port. This command immediately clears the input and output data queues and resets the 8084(AD) to the Transparent State in Field 1 and Field 2. Article and XDS output queues are not reset by this command.
Page 101 Models 8084/8084AD/8085 Closed Caption Encoder Manual CHAPTER 5: TECHNICAL DESCRIPTION TECHNICAL DESCRIPTION....................... 5-1 OVERVIEW..........................5-1 5.1.1 Block Diagrams ........................ 5-1 SPECIFICATIONS........................5-3 5.2.1 Serial Digital Video Input....................5-3 5.2.2 Serial Digital Video Outputs ..................... 5-3 5.2.3 Composite Analog Video Input (8084AD only)..............5-3 5.2.4...
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Page 103: Technical Description
Models 8084/8084AD/8085 Closed Caption Encoder Manual TECHNICAL DESCRIPTION OVERVIEW The Evertz Closed Caption Encoders combine the latest LSI technology with sophisticated microcontroller firmware to provide a powerful, flexible system for encoding closed caption and XDS data onto either a digital video bitstream or a composite analog video feed.
Page 104: Figure 5-2: Caption Processing Engine (Stream Mode)
Models 8084/8084AD/8085 Closed Caption Encoder Manual A functional block diagram for the model 8084AD Analog & Digital Closed Caption Encoder is shown above. The block diagram for the model 8084 Digital Closed Caption encoder is almost identical, lacking only the composite analog video path and upstream caption source selector.
Page 105: Specifications
Models 8084/8084AD/8085 Closed Caption Encoder Manual SPECIFICATIONS 5.2.1 Serial Digital Video Input Standards: SMPTE 259M (270 Mb/s) Connector: 1 BNC input per IEC 169-8 Equalization: Automatic 200m @ 270 Mb/s with Belden 8281 or equivalent cable Return Loss: > 15 dB up to 540 Mb/s 5.2.2...
Page 106: Electrical
Models 8084/8084AD/8085 Closed Caption Encoder Manual 5.2.5 Electrical Voltage: 110 - 230 Volts AC, 50/60 Hz – unit auto senses input voltage Fuse Rating: 250 V, 1 amp, time delay Power: 30 VA Safety: ETL Listed, complies with EU safety directives...
Page 107: Replacing The Battery
5.3.2 REPLACING THE BATTERY The 8084 and 8085 Caption encoders are fitted with a 3V 20mm diameter Lithium battery type CR2032. This battery is used to power the clock and the article memory while power is removed from the unit. If the unit is not...
Page 108: Procedure For Replacing The Battery
A to connect to a captioning computer using a typical null modem cable like ports B and C. The 8084 now supports both RS-232 and RS-422 communications on port A. Earlier models that only supported RS-232 can have a hardware upgrade performed.
Page 109: Figure 5-3: Jumper Settings For Port A Configurations
Models 8084/8084AD/8085 Closed Caption Encoder Manual Newer units shipped with firmware “R000724” or later support RS-422 communications as well. Units with RS-422 support have an “IO PLD” revision number of “02” or higher. Otherwise, a factory hardware upgrade is required to support RS-422 voltage levels. To check for RS-422 support, follow the procedure given in section 5.5.3 “Viewing Firmware and PLD...
Page 110: Configuring Serial Ports B And C
Caption encoders containing a model 8038 modem/UART submodule have fixed RS232-DTE pinouts for ports B and C. Caption encoders manufactured using the Evertz 8058 modem/UART submodule can be configured for RS232-DTE or RS422-tributary operation. Refer to section 5.5.3 to determine if your encoder contains an 8058 submodule or an 8038.
Page 111: Circuit Description
Models 8084/8084AD/8085 Closed Caption Encoder Manual Port B RS-232 Port C RS-232 Port B RS-422 Port C RS-232 Port B RS-232 Port C RS-422 Port B RS-422 Port C RS-422 Figure 5-5: Jumper Settings for Ports B and C CIRCUIT DESCRIPTION 5.4.1...
Page 112: Modems
Models 8084/8084AD/8085 Closed Caption Encoder Manual 5.4.2 Modems The basic unit is fitted with Cermetek CH1794 modem known as port D. A second optional modem known as port E may be fitted at the factory. These modems are capable of baud rates up to 14400bps, but the actual connection rate parameters are set from the front panel menus or serial ports.
Page 113: Upgrading The Firmware
PLD revision number in addition to a firmware upgrade. If the PLD revision numbers in the caption encoder are lower than those specified for the upgrade, Evertz technicians must be service the encoder to perform the upgrade.
Page 114 Models 8084/8084AD/8085 Closed Caption Encoder Manual 4. If you wish 38,400 baud communications, hold the key on the front panel and apply power to the Closed Caption Encoder. For 9600 baud, hold the key while applying power. 5. The front panel will display the word PROGRAMMER and the selected baud rate.
Page 115: Viewing Firmware And Pld Revision Levels
5.5.3 Viewing Firmware and PLD Revision Levels Your Evertz caption encoder does not need to be taken out of service to check the firmware or PLD revision levels. These can be checked from the front panel display. The serial port configuration and power supply status can also be checked from these front panel displays.
Page 116 Models 8084/8084AD/8085 Closed Caption Encoder Manual A feature was added to firmware revisions R000724 and later that allows the operator to view the PLD revision levels in the caption encoder. Follow these steps: 1. Enter the Engineering menu system using SHIFT+SETUP.
Page 117 Models 8084/8084AD/8085 Closed Caption Encoder Manual CHAPTER 6: TROUBLESHOOTING TROUBLESHOOTING ........................ 6-1 ANSWERS TO FREQUENTLY ASKED QUESTIONS..............6-1 6.1.1 Which serial port should I connect to? ................6-1 6.1.2 There is no SDI video being output from the unit............. 6-1 6.1.3...
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Page 119: Troubleshooting
6.1.2 There is no SDI video being output from the unit. The 8074, 8084 and 8084AD include an SDI video bypass relay to ensure that SDI video is passed, even when the unit is powered-down. Make sure that your SDI source is connected to the BNC connector marked SDI IN, and the primary SDI video output is connected to the BNC connector marked SDI BYPASS OUT.
Page 120: What Baud Rate And Port Settings Should I Use
Why does my Port A logic level appear as “???” Earlier revisions of the IO PLD did not have the ability to read-back this data. Your caption encoder will need to be sent to the Evertz factory for a PLD upgrade before this feature will function.
Page 121: Captions Are Not Being Encoded At All
6.1.9 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 122: My 8084Ad Sometimes Drops Or Repeats Caption Characters
The optional caption decoder in the 8074 does not display some accented and special characters. The decoder in the 8084 and 8084AD do display the entire captioning character set.
Page 123: Why Doesn't My Caption Encoder Have This Button/Led/Menu Item
6.1.14 Why doesn’t my caption encoder have this button/LED/menu item? The manual describes more than one model of Evertz closed caption encoder. These units are similar but different. The manual attempts to describe the product features “where applicable” without complicating the text with model exclusions where this is fairly obvious.
Page 124: How Can I Encode Xds / V-Chip "Content Advisory" Or "Program Rating" Packets
EIA-608-A. If there is no automation system or XDS software controlling the insertion of V-Chip program rating packets, the 8084 and 8084AD have built-in facilities for inserting a default V-Chip program rating locally from the front panel setup menu system. Refer to section 3.2 for instructions on how to configure this feature.
Page 125 Models 8084/8084AD/8085 Closed Caption Encoder Manual MPAA* Rating System: 4040 4140 4240 PG-13 4340 4440 NC-17 4540 4640 Not Rated 4740 * EIA-608-B also defines a "compatibility mode" MPAA system where the first byte has values 50 through 57. U.S. TV Parental Guideline Rating System:...
Page 126: When The Caption Decoder Is Set To Xds, The Text Sometimes Disappears Momentarily
Use of the VBI Bridge or Port Passthrough features requires two 8074/8084/8084AD units. Make sure that the serial baud rate and parity of both is the same for the inter-connected ports. VBI Bridge extracts caption data from the line 21 waveform and passes it directly to another caption encoder to re-encode.
Page 127: My Modem Connection Hangs-Up Unexpectedly
Models 8084/8084AD/8085 Closed Caption Encoder Manual Port Passthrough echoes serial commands sent into one port back out of another port (Port B specifically). Using Port Passthrough, there is no feedback from the second encoder receiving the serial commands. If a serial command is not valid for the second encoder, no error message will be returned to the captioning computer.
Page 128: Before You Call Evertz Technical Support
Port B or Port C on the encoder, one may simply disconnect the cable from the rear of the Evertz unit and connect to a computer’s COM port. For Port A, some rewiring may be required depending on the system configuration.
Page 129 Models 8084/8084AD/8085 Closed Caption Encoder Manual • Strip high-bit of incoming characters • Mask non-ASCII characters • Any translation tables (such as V T-100 or ANSI) • Store only printable characters in capture file. The following terminal programs are known to save useable capture files: •...
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Page 131 In a broadcast facility, it is common for video to pass through a piece of processing hardware that does not accurately preserve the caption data stored on line 21. One of the features of Evertz 8084 and 8084AD Closed Caption Encoders is the ability to extract and re-encode closed caption data around such devices.
Page 132 IMPLEMENTING THE VBI BRIDGE A.3.1 Method 1: Single Evertz 8084AD Encoder Figure A-2 shows how the VBI bridge may be implemented using a single Evertz 8084AD Analog & Digital Closed Caption Encoder. The 8084AD has two separate video feeds, one composite analog video and one component digital video.
Page 133 Exit the Setup menu system by pressing SETUP A.3.2 Method 2: Two Evertz Encoders Figure A-3 depicts the typical wiring for two Evertz caption encoders to perform a VBI bridge function for SDI video. Captions on both fields 1 and 2 are transferred in this manner.
Page 134 8074 encoder cannot insert other new data when it is performing a VBI bridge function. To configure the 8084 or 8084AD for VBI bridging using method 2 perform the following steps. Set the upstream encoder to CC Transmit operation (to extract caption data prior to DVE): •...
Page 135 Models 8084/8084AD/8085 Closed Caption Encoder Manual The single Evertz encoder is on the receive side of the VBI Bridge. Starting with 8084 and 8084AD firmware dated R010621, the receiving encoder can perform other captioning functions as well as re- encode data as a VBI Bridge. This allows the user to insert new XDS, V-Chip, WebTV or other data, and manipulate the re-insertion of the pre-existing data on a stream-by-stream basis.
Page 136 Models 8084/8084AD/8085 Closed Caption Encoder Manual Set the Port B baud rate to 9600. • Enter Engineering Setup menu system by pressing SHIFT+SETUP • Press UP or DOWN arrows until display shows >PORT B BAUD • Press LEFT or RIGHT arrows until display shows BaudB=9600 •...
Page 137: Appendix B: Application Note 3: Transmitting Time Of Day Using Xds Packets
XDS packets. The application note also provides step by step procedures for setting up the Evertz 8084 and 8084AD Caption/XDS encoders (referred to generically as 8084AD throughout this document) and the Evertz MetaCast 2 software to accomplish this.
Page 138 Models 8084/8084AD/8085 Closed Caption Encoder Manual Offset Time Zone Where Observed Code Hours UTC-05:00 Eastern New York UTC-06:00 Central Chicago UTC-07:00 Mountain Denver UTC-08:00 Pacific Los Angeles UTC-09:00 Alaska Alaska UTC-10:00 Hawaii-Aleutian Hawaii Table B-1: Time Zones in the United States B.2.2 Daylight Saving Time...
Page 139 This signal is connected to the 3-pin XLR connector on the rear panel marked LTC In. It can be derived from a network feed off the satellite, or from a local time code generator such as the Evertz Model 5010-GPS that is locked to an accurate time reference (e.g. GPS).
Page 140 Models 8084/8084AD/8085 Closed Caption Encoder Manual When you have properly configured the LTC reader, the time zone and DST Flag, and apply a valid time code signal and input video, the 8084AD will show a letter T at the right side of the front panel display when the time is being displayed.
Page 141 Models 8084/8084AD/8085 Closed Caption Encoder Manual System Calculate UTC Time Front Panel Display System LTC DST Config DST Flag System/On/Off Calculate .: 09.52:02 Local Time Local Local System Time Time Input (UTC) LTC RDR Config Encode On Local/UTC System Video Line 21, Field 2...
Page 142 Models 8084/8084AD/8085 Closed Caption Encoder Manual handshaking, it is recommended that 'Hardware' be selected but this requires all pins to be connected in the serial cable. If the response window is not visible on the right side of the screen, click Responses from the View menu.
Page 143 Models 8084/8084AD/8085 Closed Caption Encoder Manual Toolbar Icon Name Description Open up the Date/Time Properties window so that you can edit the Date, Time and Time Zone. If your clock source is the PC, Set Clock this button will open the standard dialog used to set the PC clock.
Page 144 Models 8084/8084AD/8085 Closed Caption Encoder Manual After making any changes press the Okay button to update the PC clock. After exiting the Date/Time Properties screen you will need to click the 'Sync MetaCast 2 and Encoder' button on the Clocks Toolbar to apply those new settings to MetaCast 2.
Page 145 Models 8084/8084AD/8085 Closed Caption Encoder Manual B.5.6 Configuring Daylight Saving Time Two independent check boxes control Daylight Saving Time (DST) in MetaCast 2. The first check box is used to set the DST Flag in the 8084AD and is checked when Daylight Saving Time is currently being observed.
Page 146 Models 8084/8084AD/8085 Closed Caption Encoder Manual The check box immediately below that lets you choose whether MetaCast 2 should automatically adjust for DST or not. Normally you should check this box, even if your region does not observe DST. When the box is checked, the DST time controls below become available, allowing you to configure when MetaCast 2 will automatically adjust for DST.
Page 147 8084 or re- enable the packets using MetaCast 2 after a power failure. The preferred solution however is to update the firmware in the 8084 to R020816 or later where the XDS packers are retained after power loss.
Page 148 Models 8084/8084AD/8085 Closed Caption Encoder Manual ISSUES WITH CONSUMER ELECTRONICS B.6.1 Line 21 Field 1 Signal Must be Present when Encoding XDS EIA-608 Specifies that Line 21 Field1 caption signal must also be present when XDS packets are being inserted. Some XDS decoders will not function if the caption signal is not present in both fields. When encoding XDS packets, the 8084AD will automatically insert a Line21 Field 1 caption signal if there is not one present already.
Page 149 If the VCR is receiving Time of Day and Time Zone packets, its clock will be updated depending on its timezone and DST settings. If the timezone is set manually in the VCR, the clock will be updated with the VCR timezone setting rather than pulling it off the 8084 packets. •...
Page 150 Models 8084/8084AD/8085 Closed Caption Encoder Manual B.6.5 Time Zones East of Greenwich EIA-608B specifies that time zones are always interpreted as a negative whole hour offset from UTC. This means that time zones east of Greenwich and west of the International Date Line will be encoded as –23 to –13 hour offsets.

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8084ad 8085

evertz 8084 Instruction Manual

Chapter 1: Overview

Chapter 3: Operation

Chapter 5: Technical Description

Chapter 6: Troubleshooting

Appendix B: Application Note 3: Transmitting Time of Day Using XDS Packets

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