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Blonder tongue MUX-2D-QAM Instruction Manual

8vsb/qam multiplexer
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INSTRUCTION MANUAL
MUX-2D-QAM
 
8VSB/QAM Multiplexer
Model
MUX-2D-QAM
Status
Active
Obsolete
Obsolete
©2012 Blonder Tongue Laboratories, Inc. All rights reserved. Specifications are subject to change without notice. Trademarks are the property of their respective owner.
Stock No.
Description
6504
8VSB/QAM Multiplexer
Date
August 29, 2012
May 23, 2011
Apr. 6, 2011
(800) 523-6049 • (732) 679-4000 • FAX: (732) 679-4353
Document No.
Issue No.
651226400C
651226400B
651226400A
One Jake Brown Road
Old Bridge, NJ 08857-1000 USA
www.blondertongue.com
Author
3
KK
2
KK
1
KK

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  • Page 1 Issue No. Author Active August 29, 2012 651226400C Obsolete May 23, 2011 651226400B Obsolete Apr. 6, 2011 651226400A ©2012 Blonder Tongue Laboratories, Inc. All rights reserved. Specifications are subject to change without notice. Trademarks are the property of their respective owner.
  • Page 2 We recommend that you write the following information in the spaces provided below. Purchase Location Name: Purchase Location Telephone Number: MUX-2D-QAM Serial Number: The information contained herein is subject to change without notice. Revisions may be issued to advise of such changes and/or additions.

  • Page 3: Table Of Contents

    MUX-2D-QAM  Instruction Manual Table of Contents SECTION 1 – GENERAL & SAFETY INSTRUCTIONS  ....................... 4 SECTION 2 – PRODUCT SUMMARY  ..........................6 2.1 REVISION HISTORY & REASON ............................ 6 2.2 PRODUCT APPLICATION & DESCRIPTION ........................6 2.3 PRODUCT SPECIFICATION ............................8 SECTION 3 – INSTALLATION & POWER-UP ........................9 3.1 UNPACKING ................................. 9 3.2 INSTALLATION ................................9 3.3 POWER-UP ..................................

  • Page 4: Section 1 - General & Safety Instructions

    ➥ U nplug the unit from the AC power outlet before cleaning. Use only a damp cloth for cleaning the exterior of the unit. ➥ D o not use accessories or attachments not recommended by Blonder Tongue, as they may cause hazards, and will void the warranty.
  • Page 5 ❏ The unit exhibits a distinct change in performance. ➥ When replacement parts are required, ensure that the service technician uses replacement parts specified by Blonder Tongue. Unauthorized substitutions may damage the unit or cause electrical shock or fire, and will void the warranty.

  • Page 6: Section 2 - Product Summary

    Protocol) tables. The data rate can be up to 38.8 Mbps for transmission in a single 6 MHz, QAM 256 channel or higher with QAM 512 and 1024. The MUX-2D-QAM supports standard EIA CATV, IRC, HRC and Broadcast channel plans in the 54 – 864 frequency range. All channel frequency information, with appropriate FCC offsets, is pre-programmed and tuned electronically via...
  • Page 7 MUX-2D-QAM  Instruction Manual Description: Below are the front and rear pictures of the unit: [1] & [2] LCD SCREEN & KEY-PAD: The LCD has 2 lines, each capable of displaying 16 characters. The key-pad has 5 push-down buttons used to navigate between menus and to program unit information.

  • Page 8: Product Specification

    8 MUX-2D-QAM  Instruction Manual 2.3 Product Specification INPUT OUTPUT Connectors Connector: 1x “F” Female 8VSB/QAM module: 2x “F” Female QAM Modulation Modes: 16, 32, 64, 128, 256, 512, and 1024 Emergency Alert System 1x BNC Female (EAS) DVB Symbol Rate: Variable; 1 to 7 MSymbols/sec (MBaud)

  • Page 9: Section 3 - Installation & Power-Up

    3.2 Installation The MUX-2D-QAM multiplexer is designed to be installed in a standard 19-inch (480 mm) rack (EIA 310-D, IEC 60297, and DIN 41494 SC48D). To install the encoder, secure its front panel to the rack by inserting four machine screws, with cup washers, through the four mounting holes in the front panel.

  • Page 10: Section 4 - Configuration

    10 MUX-2D-QAM  Instruction Manual Section 4 – Configuration 4.1 General Configuration and monitoring of the unit is accomplished by utilizing the front-panel LCD and Key-pad. Configuration of the unit is accomplished from the five push-down buttons on the front-panel key-pad: t (L), u (R), p (UP), q (DN), and Enter.
  • Page 11 MUX-2D-QAM  DIAGRAM #1 Instruction Manual Input Module Menu  QAM Menu RF Output Menu MUX Output Menu (see section 5 for more detail) (See section 6 for more detail) (See section 7 for more detail) (See section 8 for more detail) RF OUTPUT 8VSB INPUT# 1 8VSB INPUT# 2...

  • Page 12: Quick Configuration Modules

    12 MUX-2D-QAM  Instruction Manual 4.2 Quick Configuration 1. Refer to Section 5 to configure the 8VSB/QAM input modules. Please pay attention to the maximum input bandwidth that the unit and input modules can handle. A more detailed guide to maximum input bandwidth and output bandwidth limitations can be found in Section 10.

  • Page 13: Section 5 - Input Menu

    MUX-2D-QAM  Instruction Manual Section 5 – Input Menu Each 8VSB/QAM input must be configured depending on whether the input is in 8VSB (Digital Off-Air) or in QAM (Digital Cable). The factory default values are selected to minimize the necessary configuration steps. However, you can change the factory default value of any of the menu options.

  • Page 14: Input Menu: "Pid Offset" Parameter

    ASSIGNMENTS. NOTE: The CVCT Mode allows the MUX-2D-QAM to set each virtual channel assignment as a one-part three-digit integer channel number (major) only for CATV applications (ie:“570”) compared to the ATSC broadcast two-part format having major and minor channels (ie:“17-3”).

  • Page 15: Input Menu: "Channel No" Parameter

    MUX-2D-QAM  Instruction Manual It follows then, that the Baud Rate is dependent on the selection of the QAM modulation modes referenced in Section 5.5. The unit automatically assigns the appropriate Baud Rate for each QAM modulation type, for example: The assigned Baud Rate is 5.0569 MBD, when CATV QAM 64B is selected.

  • Page 16: Section 6 - Qam Menu

    16 MUX-2D-QAM  Instruction Manual REGARDLESS OF WHETHER THE INPUT STREAM TO THE 8VSB/QAM MODULE IS IN 8VSB  (DIGITAL OFF-AIR) OR IN QAM (DIGITAL CABLE), THE WORD “8VSB” IS DISPLAYED ON THE LCD. Section 6 -  QAM Menu 6.1 General The “QAM MENU” allows you to configure the QAM output of the unit. The seven (7) possible configurable parameters shown in Section 4.1 are explained in detail in this section. However, the following two status messages are applicable when you are in the "QAM MENU":...

  • Page 17: Qam Menu: "Baud Rate" Parameter

    MUX-2D-QAM  Instruction Manual It is not recommended to change the above assigned values, however, to change the factory default value, follow these steps: 1. Using the t (L) or u (R) buttons scroll to the “QAM MENU”. See Section 4.1 for details.

  • Page 18: Section 7 - Rf Output Menu

    18 MUX-2D-QAM  Instruction Manual For normal operation, the mode must be “Normal”, however, to change the factory default value, follow these steps: 1. Using the t (L) or u (R) buttons scroll to the “QAM MENU”. See Section 4.1 for details.

  • Page 19: Section 8 - Mux Output Menu

    The MUX-2D-QAM default setting is “No”. When this mode is enabled (yes selected), major and minor channel numbers and names can be added or edited under the MUX Output / Program # ( Section 8.9) menu. The MUX-2D-QAM creates and maintains the CVCT (cable virtual channel table) and MGT (master guide table) in this mode.

  • Page 20: Mux Output Menu: "Program #X" Parameter

      Section 9 -  Emergency Alert System (EAS) The MUX-2D-QAM EAS feature allows all program streams to be replaced by an EAS broadcast when activated. An ASI input is required for EAS. The ASI format must be a single stream standard definition program (typically <=5.5 Mbps data rate) with MPEG 2 or 4 audio/video encoding.

  • Page 21: Section 10 - Frequently Asked Questions

    EAS Active! Upon removing the contact closure or voltage input the MUX-2D-QAM will return to its normal operation. A buffered ASI output is provided on the rear panel to permit “daisy-chaining” or looping multiple MUX-2D-QAM’s from a single EAS-ASI source.
  • Page 22     Question: What happens if a programmed, operational MUX-2D-QAM loses power? Answer:  The unit has a non-volatile memory that stores all of unit settings so that it can resume normal operation after going through its reboot sequence. Currently, PIDs are not stored in non-volatile memory. Use the PID offset feature on inputs having the same program numbers as another input.

  • Page 23: Appendix A: Measuring The Qam Output Signal Level

    MUX-2D-QAM  Instruction Manual Appendix A: Measuring the QAM Output Signal Level To ensure that the QAM output power level indicated on the LCD screen is indeed accurate, you can also measure the true equivalent signal level for the QAM carrier using the CW (Carrier Wave) signal. The unit is capable of supplying the CW signal which simplifies the measurement process because the output level does not need to be adjusted for the bandwidth setting limitations of the spectrum analyzer.
  • Page 24 Limited Warranty Blonder Tongue Laboratories, Inc. (BT) will at its sole option, either repair or replace (with a new or factory reconditioned product, as BT may Blonder Tongue Laboratories, Inc. (BT) will at its sole option, either repair or replace (with a new or factory reconditioned product, as BT may determine) any product manufactured by BT which proves to be defective in materials or workmanship or fails to meet the specifications which...

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