EEG EN 530 Instruction Manual

HDTV SMART ENCODER IV

MODEL EN 530

EEG Enterprises, Inc.

586 Main Street

Farmingdale, New York 11735

TEL: (516) 293-7472 FAX: (516) 293-7417

EN530 HDTV Smart Encoder IV

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Table Of Contents

Introduction________________________________________________ 2

Product Description...........................................................................2

Features Overview.............................................................................2

Internal Block Diagram.....................................................................2

Installation_________________________________________________ 3

Front Panel ........................................................................................4

Rear Panel..........................................................................................6

Data Port Settings..............................................................................8

Encoder Operation__________________________________________ 9

Command Format..............................................................................9

HD Output Types ..............................................................................10

Local Caption Entry ..........................................................................12

XDS Insertion....................................................................................16

URL and Text Encoding....................................................................21

Additional Features _________________________________________ 24

Non-Volatile Memory.......................................................................24

Serial Port Configuration...................................................................26

GPI Switch Functions........................................................................27

Encoder Status Commands................................................................29

Appendices ________________________________________________ 31

Grand Alliance Interface ...................................................................31

RS422 Configuration.........................................................................32

Clone Port Option..............................................................................33

EN530 Specifications________________________________________ 34 References ________________________________________________ 36

The revision date for this manual is September 13, 2007.

EN530 HDTV Smart Encoder IV

Section 1: Introduction

Product Description

The EN530 HDTV Smart Encoder IV is designed to provide an efficient and universal solution for Standard Definition and High Definition Television closed captioning applications. The EN530 provides HD caption insertion and de-embedding capabilities for use in video post-production and live broadcast captioning. A full range of features for both up-conversion and downconversion of caption data support automatic bridging between Standard and High Definition formats.

The Advanced Smart Encoder IV protocol is a superset of the protocol used in earlier industry standard EEG Smart Encoders, ensuring smooth user transition and full software compatibility. All Line 21 functionality of the EN470 Smart Encoder III is preserved in addition to the EN530’s advanced DTVCC operations.

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Features Overview

 Receives caption input from three serial input ports, a built-in dial-up

 Compliance with all FCC mandated EIA-608B and CEA-708 standards,

 Independent HD and SD video paths allow simultaneous encoding of HD

 Transparent up-conversion of legacy EIA-608B caption services to CEA-

 Intelligent automatic switching between HD Insertion and Recovery output

 Compatible with all ATSC Encoders supporting SMPTE 334M, SMPTE

 Supports a wide variety of HD transmission and mastering formats

modem, and recovery of upstream data from both HD and SD video inputs

plus GPI closed caption relocation to satisfy emergency alert accessibility requirements

SMPTE 292M VANC captions and SDI SMPTE 259M Line 21 captions

708 format for HDTV

methods and multiple captioning sources

333M or Grand Alliance captioning protocols

including 1080i, 1080p, 720p, 480p, and 24psf

EN530 HDTV Smart Encoder IV

Internal Block Diagram

The following diagram depicts the internal processing paths of the EN530:

EN530 HDTV Smart Encoder IV

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Section 2: Installation

Front Panel

The Encoder front panel is shown in the figure below.

HDTV SMART ENCODER IV

POWER

MODEL EN530

MODE PORT DATA L21 XDS

ENCODER

RESET

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FARMINGDALE, N. Y.

The front panel has the following controls:

POWER Turns power to the Encoder on and off. ENCODER ON Controls relay bypass for HD Out 1 and SD Out 1. HD and SD video paths will

be untouched by the Encoder when bypass is set. The LED indicator is off when the Encoder is bypassed.

RESET Performs a hardware reset. The Encoder will reboot, all operations will be

cleared, and status will return to the default settings stored in Non-Volatile Memory.

EN530 HDTV Smart Encoder IV

Front Panel LCD The front panel LCD displays information about the Encoder’s current and

recent operations. The top row of the display corresponds to primary caption channel operations, and the bottom row corresponds to secondary caption channel operations.

Mode displays an abbreviation corresponding to the Local Entry Mode that was last entered for each captioning service. For a list of Local Entry Modes and abbreviations, see page 12.

Port indicates the port that last input SD captioning and the baud rate at which it is operating.

Data displays Input and Output icons that blink to indicate transmission or reception of 608 serial data for each service. A blinking “I” indicates that the Encoder is receiving caption data from an input port. A blinking “O” indicates that the Encoder is inserting this data into output video signals.

L21 displays Input and Output icons that blink to indicate transmission or reception of 608 Line 21 data for each service. A blinking “I” indicates that the Encoder is receiving caption data from the SD video input. A blinking “O” indicates that the Encoder is inserting this data into output video signals.

XDS displays an Output icon that blinks to indicate transmission of data. A blinking “O” indicates that the Encoder is inserting XDS packets from its queue into output video signals.

The rightmost column in the display indicates the presence of HD and SDI video sources. The top row will display SDI if a video source is present at the rear panel SD-SDI IN, and the bottom row will display HD if a video source is present at the HD-SDI IN. If an SDI signal is connected to HD-SDI IN for SDI VANC encoding, the HD indicator will appear.

EN530 HDTV Smart Encoder IV

Rear Panel

The Encoder’s main configuration and operation is controlled through the rear panel input ports. A connection diagram for a typical setup is shown below, followed by a more detailed description of available options for each connection. For more detailed descriptions of serial port operation and configuration, see pages 8 and 26.

Line Cord AC power input. SD-SDI In Input for serial component digital Standard Definition SMPTE 259M (SDI)

video source.

HD-SDI In Input for HD-SDI SMPTE 292M video source for VANC data recovery and

encoding. Supported HD video formats include1080i, 1080p, 720p, 480p, and 24psf.

MA Standard installed modem data port. Connect to a phone line to enable dial-up

data entry.

P1 Can be configured as a third RS232 general purpose data port or as a special

purpose CEA-708 data port supporting SMPTE 333M or Grand Alliance protocols for connection to the captioning port of an ATSC encoder. Configuration of this port is described in Section 3 under the “HD Output Types” heading.

P2 General purpose serial data port for caption or XDS input. Configurable for

RS232 or RS422 operation.

EN530 HDTV Smart Encoder IV

P3 General purpose serial data port for caption or XDS input. Configurable for

RS232 or RS422 operation. As the Master configuration port, P3 is the only port that can enter some Encoder commands.

VTR (GPI) This 6-pin connector is configured as 4 unique GPI switches. The GPI switches

can be used to change caption up-conversion and down-conversion settings and to control caption display relocation to prevent overlap with emergency information and graphics. See page 27 for the GPI input pin-outs.

MB Optional second modem data port. Connect to a phone line to enable dial-up

data entry.

Time Code Not used SD-SDI Out Standard Definition SMPTE 259M video output. OUT 1 is the primary output.

OUT 2 is for monitoring or other secondary use. Only OUT 1 is affected by ENCODER ON bypass.

HD-SDI/SDI Out VANC data encoded HD-SDI SMPTE 292M video output. OUT 1 is the

primary output. OUT 2 is for monitoring or other secondary use. Only OUT 1 is affected by ENCODER ON bypass.

EN530 HDTV Smart Encoder IV

Data Port Settings

The EN530 serial data input ports P2 and P3 are factory configured for RS232 protocol at 1200 baud, 7 data bits, and Odd parity. The dial-up modem is set to operate at 2400 baud, but will also operate at 1200 baud without reconfiguration. These default settings are adequate for most purposes. To change any of these settings, see pages 26.

The EN530 controls the flow of data from input ports to the processing queue using XON/XOFF handshaking protocol. XOFF will be sent when the queue is over ¾ full. When the queue clears to ¼ full, XON will be sent. The XON and XOFF characters are sent with a parity bit determined by the parity setting of the port they are sent through. Hardware handshaking is not supported and must be disabled when connecting the Encoder.

P1 is factory configured for connection to the captioning port of an ATSC encoder that uses SMPTE 333M protocol. It can also be configured as a standard data port (similar to P2 and P3), or to support an ATSC encoder that uses Grand Alliance (GA) protocol. To reconfigure P1, see page 11.

Serial Input Activity While any of the EN530’s serial input ports (MA, P3, P2, and P1 if configured)

may enter data for any supported caption service, it is important to note that multiple ports may not enter data for the same service simultaneously. When an input port begins a local data entry mode for a service, any other port that was previously entering data for that service will be preempted, and any further data entered through that port will be lost. Therefore, coordination must be exercised in multiple supplier captioning environments to avoid interference and unintended data loss in switching.

The EN530 gives special priority to data entry from the dial-up modem. Once MA is Off Hook and begins a data entry mode for a service, only P3 may preempt the modem and take over data entry for that service. MA will retain this priority until either P3 takes over or the modem returns On Hook.

EN530 HDTV Smart Encoder IV

Section 3: Encoder Operation

Command Format

The EN530 command set is an extension of the industry standard Smart Encoder command set used in the EEG 470 series encoders. Most commands in the EN530 command set can be entered through any serial input port or through the dial-up modem; any commands that can be entered only through master configuration port P3 will be specially identified. Encoder commands are recognized by a leading control code of <CTRL+A>, also represented by the ASCII hex code 01. The <CTRL+A> character is non-printing on most terminal screens, but on some it appears as a smiley face. An Encoder control command must end with a carriage return, which can be entered with the <ENTER> key on a keyboard or by 0D in ASCII hex.

To send the encoder commands through the serial input ports, connect a standard 9-pin cable between your PC’s serial port and the RJ11 to DB9 adapter shipped with the EN530, and then connect the other end of the adapter to any encoder data port. You can now send commands to the encoder, from your PC, using a communications application such as HyperTerminal, which is bundled with most versions of Windows. The most basic Smart Encoder command, useful for checking the operation of your communication setup, is <CTRL+A>?<ENTER>. If your setup is working correctly, the Encoder will respond with its model name, firmware version, and serial number. If you have trouble communicating using HyperTerminal, always check to make sure that the settings in the Port Settings menu in HyperTerminal match the settings for the Encoder port you are connecting to.

In this manual, Encoder commands will be distinguished from other text by use of a bold font. The parameters for each command will be listed in italics. Optional parameters will be enclosed in square brackets. Possible parameter values and default settings will be described in text or bullet points after the command is introduced.

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EN530 HDTV Smart Encoder IV

HD Output Types

The EN530 is capable of outputting HD caption data in three different ways. The HD output type you will want to use will be determined based on the EN530’s placement in your broadcast or post-production video path, and sometimes the protocols supported by the equipment it is interfaced with.

HD VANC Insertion In HD VANC Insertion, the EN530 inserts its EIA-708B caption output data,

either regenerated data from the HD input, up-converted data from the SD input, or locally-inserted data from the data ports, into the vertical ancillary space of an HD video source, using SMPTE 334M protocol. The newly captioned HD video signal appears at the HD-SDI video outputs on the rear panel.

The Encoder’s default HD output mode will be VANC Insertion unless the P1 port is connected to an ATSC encoder supporting the SMPTE 333M protocol. The Encoder will return to VANC insertion mode if the device supporting SMPTE 333M is disconnected. VANC insertion can also be disabled by typing <CTRL+A># OFF <ENTER>. If insertion is disabled through this command, it must be re-enabled using <CTRL+A># ON <ENTER>. The command to return to VANC insertion with automatic SMPTE 333M detection on P1 from another mode, or to change the VANC line on which insertion takes place is <CTRL+A>f 334 [Line] <ENTER>. To enter VANC Insertion mode without automatic 333 detection, use <CTRL+A>f vanc [Line] <ENTER>. This will allow P1 to be used as a general purpose serial input port.

The optional Line parameter sets the VANC line on which caption data will be inserted into the HD video signal. Non-captioning VANC data packets on that line will be preserved. The following table lists the valid VANC insertion lines for the most common HD video formats. The Encoder’s default insertion line is the first available VANC line of the particular video standard, which is valid for all formats. Entering 0 as the Line parameter will set insertion for the first available VANC line, using the order listed in the table below for each format. In interlaced formats, caption data will only be inserted once per frame, in the first field.

EN530 HDTV Smart Encoder IV

Format VANC Insertion Lines

24Psf 9-20 720p 9-25 1080i 9-20 SD 12-20

333 Serial Output In 333 serial output, the EN530 sends its 708 caption output to a serial output

queue for transport to an ATSC encoder supporting SMPTE 333M protocol. 333 is a “pull” protocol; the ATSC encoder sends synchronization requests (SYNs) to the EN530, which then sends the requested data bytes out through serial port P1. The SMPTE 333M specification should be referred to for complete information about the protocol.

To set the EN530 for 333 serial output, simply connect P1 to the captioning port of a SMPTE 333M ATSC encoder. When the EN530 begins receiving SYNs it will automatically begin 333 output. P1 is default configured for the proper communications settings for 333 (38400 Baud, 8 data bits, no parity, and one stop bit).

The command to manually set the Encoder for 333 output

and set P1 to the proper settings is <CTRL+A>f 333 <ENTER>.

GA Serial Output In GA serial output, the EN530 sends its 708 caption output to a serial output

queue for transport to an ATSC encoder supporting Grand Alliance (GA) protocol. Grand Alliance is a “push” protocol; the EN530 sends data out through P1 as it becomes available, and the ATSC encoder synchronizes the data upon reception. The Grand Alliance transport protocol in use by EEG equipment is described on page 31 of this manual.

Since the Encoder initiates data transfer with a Grand Alliance ATSC encoder, GA output must be initialized manually. The command to set the Encoder for GA output is <CTRL+A>f ga <ENTER>. This command will begin the GA serial output operation and set P1 for the proper communications rate (19200 Baud, 8 data bits, no parity, and one stop bit).

Each time the EN530 is power cycled, it will automatically return to VANC

Insertion output mode. If a SMPTE 333M ATSC encoder is connected to P1, however, 333 serial output will begin as soon as SYNs are received. If GA serial output is always desired, the GA output initialization command should be stored in Non-Volatile Memory to reduce setup time. If the command is stored in NVM, GA output will automatically begin each time the Encoder is power cycled. To write a command to NVM, see page 24.

When either 333 or GA serial output is engaged, no VANC caption data will appear on the HD video output.

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EEG EN 530 Instruction Manual

Specifications and Main Features

Frequently Asked Questions

User Manual