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Black Box IC448A Manual
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Black Box IC448A Manual

Black Box IC448A Manual

Video catv balun
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DECEMBER 2002
IC448A
Video CATV Balun
CUSTOMER
Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500)
SUPPORT
FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746
INFORMATION
Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018
Web site: www.blackbox.com • E-mail: info@blackbox.com

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Summary of Contents for Black Box IC448A

  • Page 1 Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500) SUPPORT FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746 INFORMATION Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018 Web site: www.blackbox.com • E-mail: info@blackbox.com...
  • Page 2 B prescrites dans le Règlement sur le brouillage radioélectrique publié par Industrie Canada. TRADEMARKS USED IN THIS MANUAL BLACK BOX and the logo are registered trademarks of Black Box Corporation. Any other trademarks mentioned in this manual are acknowledged to be the property of the trademark owners.
  • Page 3 VIDEO CATV BALUN NORMAS OFICIALES MEXICANAS (NOM) ELECTRICAL SAFETY STATEMENT INSTRUCCIONES DE SEGURIDAD 1. Todas las instrucciones de seguridad y operación deberán ser leídas antes de que el aparato eléctrico sea operado. 2. Las instrucciones de seguridad y operación deberán ser guardadas para referencia futura.
  • Page 4 NOM STATEMENT 12. Precaución debe ser tomada de tal manera que la tierra fisica y la polarización del equipo no sea eliminada. 13. Los cables de la fuente de poder deben ser guiados de tal manera que no sean pisados ni pellizcados por objetos colocados sobre o contra ellos, poniendo particular atención a los contactos y receptáculos donde salen del aparato.

  • Page 5: Table Of Contents

    1. Specifications ..................... 5 2. Introduction ....................7 3. Installation ....................8 4. Application Tips ..................10 5. Troubleshooting ..................12 5.1 Things to Try If Problems Occur ............. 12 5.2 Calling Black Box ................13 5.3 Shipping and Packaging ..............13...

  • Page 6: Specifications

    CHAPTER 1: Specifications 1. Specifications Between balun pairs: Unshielded twisted pair (UTP): Cable Required: Construction standard: Category 5; Gauge: 24 AWG or lower; Core: Solid; Termination: RJ-45 plugs; Pairs: 1 or more (2 wires used); Impedance: 100 to 120 ohms; To attached devices: Balun normally attaches directly to equipment;...
  • Page 7 VIDEO CATV BALUN Temperature Tolerance: Operating: 32 to 131˚F (0 to 55˚C); Storage: -4 to +185˚F (-20 to +85˚C) Humidity Tolerance: Up to 95% noncondensing Enclosure: EMI-shielded ABS plastic Size: 1"H x 1"W x 2.5"D (2.5 x 2.5 x 6.4 cm) Weight: 1 oz.

  • Page 8: Introduction

    CHAPTER 2: Introduction 2. Introduction With pairs of Video CATV Baluns, you can transmit broadband cable TV (CATV), VHF TV, or FM radio signals across Category 5 unshielded twisted-pair (UTP) cable, which is already wired into most commercial sites. The balun near the video source takes a single CATV or other signal from 75-ohm coaxial cable, converts it, and transmits it over UTP cable to the other balun, which puts it back on coax and sends it to its destination.

  • Page 9: Installation

    VIDEO CATV BALUN 3. Installation To install a pair of Video CATV Baluns, follow the steps below. CAUTION! Do not attempt to open the housings of the Video CATV Baluns. There are no user-serviceable parts inside. 1. Make sure that the destination device is not too far away from the source device (refer to the Maximum Distance specification in Chapter 1).
  • Page 10 CHAPTER 3: Installation 7. Plug the other end of each UTP cable into the appropriate modular wall outlet or patch panel. When this is done, a complete cabling circuit should run between the two baluns, as shown in Figures 3-2 and 3-3. TV monitors Video CATV Video CATV...

  • Page 11: Application Tips

    VIDEO CATV BALUN 4. Application Tips When you use your Video CATV Baluns in a CATV (superband or hyperband), VHF, or FM application, you can normally reach as far as 165 ft. (50 m) without amplification if the nominal input is about 15 dBm. In some applications, or if you try to go farther, you might need a tilt amplifier because UTP’s losses are higher than those of coax cable at higher frequencies.
  • Page 12 CHAPTER 4: Application Tips 9. When in doubt, run the signal a little high to the TV monitor and use an attenuator to lower the signal strength going into the TV. You can combine attenuators; for example, you can use two -3 dBm attenuators to get a total attenuation of -6 dBm.

  • Page 13: Troubleshooting

    If at any point the problem goes away, there is probably a defect in the balun you just replaced. 6. If you still cannot diagnose the problem, call Black Box for technical support as described in the next section.

  • Page 14: Calling Black Box

    If you need to transport or ship your Video CATV Balun: • Package it carefully. We recommend that you use the original container. • If you ever ship the balun back to us for any reason, contact Black Box to get a Return Authorization (RA) number.
  • Page 15 Doc. No. 94-000341-A © Copyright 2002. Black Box Corporation. All rights reserved. 1000 Park Drive • Lawrence, PA 15055-1018 • 724-746-5500 • Fax 724-746-0746...