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Link electronics PTC-892 Instruction Manual

Standard definition digital or analog closed captioning encoder and analog decoder with digital to analog conversion
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INSTRUCTION MANUAL
Model PTC-892
Standard Definition
Digital or Analog
Closed Captioning Encoder
And Analog Decoder
With Digital to Analog
Conversion
For firmware version 1C
L IN K
ELECTRONICS, INC.
2137 Rust Avenue.
Cape Girardeau, Missouri 63703
Phone: 573-334-4433
website: www.linkelectronics.com
Fax: 573-334-9255
e-mail: sales@linkelectronics.com

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  • Page 1 INSTRUCTION MANUAL Model PTC-892 Standard Definition Digital or Analog Closed Captioning Encoder And Analog Decoder With Digital to Analog Conversion For firmware version 1C L IN K ELECTRONICS, INC. 2137 Rust Avenue. Cape Girardeau, Missouri 63703 Phone: 573-334-4433 website: www.linkelectronics.com Fax: 573-334-9255 e-mail: sales@linkelectronics.com...
  • Page 2 PTC-892 version 1 C...

  • Page 3: Table Of Contents

    Power-on Set-up Menu (TSID) ..................27 Software Instruction Set ..................... 30 Encode Modes....................30 Data Recovery Modes ..................32 Miscellaneous Instructions ................. 33 Modem FCC Document....................35 What are TSID and PSID ..................... 36 Product Warranty ......................38 PTC-892 version 1 C...

  • Page 4: Important Safeguards And Notice

    This symbol represents a protective grounding terminal. Such a terminal must be connected to earth ground prior to making any other connections to the equipment. The fuse symbol indicates that the fuse referenced in text must be replaced with one having the ratings indicated. PTC-892 version 1 C...

  • Page 5: Important Warnings And Cautions

    J, sections 1010.2 and 1010.3 and sections 1040.10 and 1040.11. Do not attempt to view light output of the laser transmitter, eye damage may result. Always use an optical power meter to verify laser output. PTC-892 version 1 C...
  • Page 6 Customers should not attempt to troubleshoot or repair modules that contain SMT components. Link assumes no liability for damage caused by unauthorized repairs. This applies to both in- and out-of-warranty products. PTC-892 version 1 C...
  • Page 7 This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference, in which case the user will be required to correct the interference at his own expense. PTC-892 version 1 C...

  • Page 8: Rear Panel Connections

    PTC-892 Rear Panel Connections Analog Video Inputs and Outputs Figure 1 Power off bypass loop-thru: Green is for analog and yellow is for digital. Figure 2 Standard definition (SD) analog composite video: Green is the composite input, vertical green is the composite encoder output, and horizontal green is the composite decoder output.

  • Page 9: Digital Input, Output, And Analog Outputs

    PTC-892 Rear Panel Connections (continued) Analog Video Inputs and Outputs (continued) Figure 5 SD analog S-video: Green is the S-video input, and blue is the S-video encoder output. Notes: With S-video input you can get the same outputs as Y/C (see figure 3). You can also get S-video encoder output with Y/C input.

  • Page 10: Ltc Input

    Weather lift GPI: Green requires a 3.5mm male mono audio plug that is activated when shorted. Optional Weather lift GPI plug available upon request. The PTC-892 provides a “weather lift” function to comply with federal regulations requiring captioning not interfere with emergency information scroll. This capability will automatically “move”...

  • Page 11: Communication Ports

    RS-232 #2 when connected. When the modem is disconnected, the RS-232 #2 has control. The PTC-892 has two nine pin subminiature “D” connectors on the rear panel for RS-232 communications. The RJ-11 jack located on the rear panel allows the unit to directly connect to a phone line when the optional internal modem is installed.

  • Page 12: Front Panel Operations

    PTC-892 Front Panel Operations Figure 12 1. CV button: This selects composite video as the I/O format. 2. YC button: This selects Y/C video as the I/O format. 3. S button: This selects S-video as the I/O format. 4. YUV button: This selects YUV video as the I/O format.

  • Page 13: Main Display

    Hard reset resets I/O format, baud rates, port selections, pedestal, weather lift, TSID, call letters, encode, decode, and data recovery modes. Likely there will be a glitch in the video. Both resets will return back to the Main Display. PTC-892 version 1 C...

  • Page 14: Submenus And Displays

    PTC-892 Submenus and Displays Time Code Display Figure 14 Pressing the menu knob from the Main Display brings up the Time Code Display. This display is only to verify LTC input, unit should not be left with this display on. Any menu function from here, takes you to the Main Display.

  • Page 15: Decoder Output Menu

    PTC-892 Submenus and Displays Decoder Output Menu Figure 16 Turn the menu knob right from the Encode Mode Menu and the Decoder Output Menu is displayed. Pressing the menu knob, allows you to select the following options: >Back (no selection) >CC1 (Field 1)

  • Page 16: Recovery Channel Menu

    PTC-892 Submenus and Displays (continued) Recovery Channel Menu Figure 17 Turn the menu knob right from the Decoder Output Menu and the Recovery Channel Menu is displayed. Pressing the menu knob, allows you to select the following options: >Back (no selection) >CC1 (Field 1)

  • Page 17: Recovery Stream Menu

    >Shift Text 3 Lines >Shift Text 4 Lines The PTC-892 will not encode the lift lines until the weather lift GPI is activated. Lift line(s) can also be selected by software commands, see figure 9 for more details. Pressing the menu knob from here, returns you to the Weather Lift Menu.

  • Page 18: Negative Pedestal Menu

    PTC-892 Submenus and Displays (continued) Negative Pedestal Menu Figure 20 Turn the menu knob right from the Weather Lift Menu and the Negative Pedestal Menu is displayed. Pressing the menu knob, allows you to select the following options: >Back (no selection) >OFF (0 IRE)

  • Page 19: Port 1 Baud Rate Menu

    >9600 >19200 >38400 Make sure that the PTC-892’s baud rate is set the same as your caption provider’s baud rate is set. Pressing the menu knob from here, returns you to the Port 1 Baud Rate Menu. Port 2 Baud Rate Menu...

  • Page 20: Data Output Port Menu

    PTC-892 Submenus and Displays (continued) Data Output Port Menu Figure 24 Turn the menu knob right from the Port 2 Baud Rate Menu and the Data Output Port Menu is displayed. Pressing the menu knob, allows you to select the following options: >Back (no selection)

  • Page 21: Control Codes Out Menu

    PTC-892 Submenus and Displays (continued) Control Codes Out Menu Figure 26 Turn the menu knob right from the Port Redirection Menu and the Control Codes Out Menu is displayed. Pressing the menu knob, allows you to select the following options: >Back (no selection)

  • Page 22: Odd Parity Menu

    PTC-892 Submenus and Displays (continued) Odd Parity Menu Figure 28 Turn the menu knob right from the Tokenize CC Codes Menu and the Odd Parity Menu is displayed. Pressing the menu knob, allows you to select the following options: >Back (no selection) >Disabled...

  • Page 23: Control 'A' Codes In Menu

    PTC-892 Submenus and Displays (continued) Control ‘A’ Codes In Menu Figure 30 Turn the menu knob right from the Duplicate CC Codes Menu and the Cntrl ‘A’ Codes In Menu is displayed. Pressing the menu knob, allows you to select the following options: >Back (no selection)

  • Page 24: Load And Save Setting Menu

    PTC-892 Submenus and Displays (continued) Load and Save Setting Menu Figure 31 Turn the menu knob right from the Cntrl ‘A’ Codes In Menu and the Load & Save Setting Menu is displayed. Pressing the menu knob, allows you to select the following options: Load &...
  • Page 25 PTC-892 Submenus and Displays (continued) Load and Save Setting Menu (continued) Set Factory Default >As Current Settings Pressing enter from here loads the factory default settings as the current settings, then performs a hard reset, and returns to Main Display.

  • Page 26: Manufacture And Model Display

    PTC-892 Submenus and Displays (continued) Manufacture and Model Display Figure 32 Turn the menu knob right from the Load & Save Setting Menu and it shows the Manufacture and Model display. Turn the menu knob right from here and it returns to the Main Display.

  • Page 27: Power-On Set-Up Menu (Tsid)

    PC, using a communications program. The ^AY command (hold down Ctrl, hit A, let them go, hit Y) will bring up the following Main Menu: Link Electronics PTC 892 Default Power-on Set-up Menu. Enter the number of the item you wish to change.
  • Page 28 Options 6 and 7 from the Main Menu, on the previous page, allows the user to save and exit or just exit, respectively. If menu number 6 is selected the PTC-892 will save the information and do a hard reset. If menu number 7 is selected the PTC-892 will not save the information, but it will do a hard reset.
  • Page 29 To confirm the TSID and call letters have been added, hook up a monitor to the "DECODER OUTPUT" BNC. On the front of the PTC-892, hit the "TEST" button. The last line of the message will show what you have added, for TSID and call letters. You can also select XDS from the front panel decoder menu to show XDS in the "DECODE"...

  • Page 30: Software Instruction Set

    Field 1 Monitor, Field 2 Insert: This mode allows encoding on Field 2 while information already on Field 1 to be re- encoded. If no information is on Field 1, the PTC-892 inserts run-in clock and null bytes. 01 35...
  • Page 31 Field 1 Monitor, Field 2 Monitor: This mode allows information already on Field 1 or Field 2 to be re-encoded. If no information is on Field 1 or Field 2, the PTC-892 inserts run-in clock and null bytes. This mode is good for removing noise and chroma from line 21.

  • Page 32: Data Recovery Modes

    Data Recovery Modes 01 40 Clear all data recovery selections. 01 41 CC1: Captioning data of CC1 is sent out the PTC-892’s com port(s), USB port, or modem. 01 42 CC2: Captioning data of CC2 is sent out the PTC-892’s com port(s), USB port, or modem.

  • Page 33: Miscellaneous Instructions

    Model number: PTC-892 Firmware version: X X 01 4F Hard Reset: The PTC-892 loads all of its default values and does a hard reset. It loads values for I/O format, baud rates, port selection, pedestal, weather lift, TSID, call letters, encode, decode, and recovery modes.
  • Page 34 TSID, and call letters. This option can be performed at anytime once the unit has been powered up. When in the default menu the PTC-892 will not respond to any other commands including the front panel. 01 5A...

  • Page 35: Modem Fcc Document

    FCC. Contact your telephone company if you have any questions about your phone line. In the event repairs are ever needed on the PTC-892, they should be performed by LINK Electronics, Inc., or an authorized representative of LINK Electronics, Inc.

  • Page 36: What Are Tsid And Psid

    PSIP data in their DTV signals, receivers may not correctly identify and tune to the station. Therefore, it is vital that all broadcasters understand PSIP and include the data in their DTV stations signals. PSIP is a mandatory Advanced Television Systems Committee (ATSC) Standard. PTC-892 version 1 C...
  • Page 37 The Link Electronics closed caption encoders that support the insertion of the TSID Codes in the XDS Channel are; PTC-892, PDA-895, and ENC896. These three models are designed for analog and SDI. These units retain TSID and/or call letters in non-volatile memory.

  • Page 38: Product Warranty

    Product Warranty Ten Year Limited Warranty (Original Customer) Link Electronics Inc. warrants its product to be free from defective material and workmanship for a period of TEN-YEARS from date of shipment, including parts and labor. This warranty excludes the HDE-3000 High Definition Closed Caption Encoder;...

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