IC440A IC444A_SEP99


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IC440A IC444A_SEP99 | Manualzz

Video Baluns

SEPTEMBER 1999

IC440A

IC444A

Video Balun

CUSTOMER

SUPPORT

INFORMATION

Order toll-free in the U.S. 24 hours, 7 A.M. Monday to midnight Friday: 877-877-BBOX

FREE technical support, 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746

Mail order: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018

Web site: www.blackbox.com • E-mail: [email protected]

FCC/IC RFI STATEMENTS

FEDERAL COMMUNICATIONS COMMISSION

AND

INDUSTRY CANADA

RADIO FREQUENCY INTERFERENCE STATEMENTS

Class B Digital Device. This equipment has been tested and found to comply with the limits for a Class B computing device pursuant to Part 15 of the FCC Rules.

These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.

However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or telephone reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

• Consult an experienced radio/TV technician for help.

Caution: Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.

To meet FCC requirements, shielded cables and power cords are required to connect this device to a personal computer or other Class B certified device.

This digital apparatus does not exceed the Class B limits for radio noise emission from digital apparatus set out in the Radio Interference Regulation of Industry Canada.

Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites applicables aux appareils numériques de classe B prescrites dans le Règlement sur le brouillage radioélectrique publié par Industrie Canada.

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VIDEO BALUNS AND CCTV VIDEO BALUNS

Contents

Chapter Page

1.

Specifications ............................................................................................. 3

2.

Introduction ............................................................................................... 5

3.

Installation .................................................................................................. 6

4.

Troubleshooting ........................................................................................ 9

4.1 Things to Try if a Problem Occurs .................................................... 9

4.2 Calling Black Box .............................................................................. 10

4.3 Shipping and Packaging ................................................................... 10

2

CHAPTER 1: Specifications

1. Specifications

Cable Required —

Between Balun pairs: Unshielded twisted pair (UTP):

Construction Standard: Category 3 or higher;

Gauge: 24 AWG or lower;

Termination:

IC440A: RJ-45 plugs;

IC444A: None;

Pairs: 1 or more (2 wires used);

Impedance: 100 ohms at 1 MHz;

Maximum Capacitance: 20 pF/ft. (6.1 pF/m);

Maximum Attenuation: 6.6 dB/1000 ft. (2 dB/km);

To attached devices: Balun normally attaches directly to equipment; if cable must be used, it must be standard

75-ohm coaxial cable with a BNC female connector on the Balun end

Compliance —

FCC Class B, IC Class/classe B;

CISPR Pub. 22 Class B

Composite (baseband) video: NTSC, PAL, or SECAM

Standard —

Impedance —

Bandwidth —

Coaxial side: 75 ohms;

UTP side: 100 ohms

DC to 10 MHz

Maximum RF

Input —

1.1 volts at 60 Hz

Insertion Loss —

Less than 2 dB over the DC-to-10-MHz frequency range

Return Loss —

Greater than 15 dB over the DC-to-10-MHz frequency range

Common-Mode

Rejection —

Greater than 40 dB at 10 MHz

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VIDEO BALUNS AND CCTV VIDEO BALUNS

Maximum

Distance —

With Category 3 cable: 1200 ft. (365.8 m) for color video,

1500 ft. (457.2 m) for black & white video;

With Category 5 cable: 2200 ft. (670.6 m) for color video,

2500 ft. (762 m) for black & white video

Connectors —

IC440A: (1) Shielded RJ-45 female, (1) BNC male;

IC444A: (2) Screw terminals, (1) BNC male

RJ-45 Pins Used —

7 (Ring) and 8 (Tip)

Temperature

Tolerance —

Operating: 32 to 131˚ F (0 to 55˚ C);

Storage: –4 to 185˚ F (–20 to 85˚ C)

Humidity

Tolerance —

Size —

Weight —

Up to 95% noncondensing

IC440A: 1"H x 0.8"W x 1.8"D (2.5 x 1.9 x 4.4 cm);

IC444A: 0.6"H x 0.6"W x 2.3"D (1.6 x 1.6 x 5.9 cm)

0.7 oz. (20 g)

4

CHAPTER 2: Introduction

2. Introduction

With the Video Balun or CCTV Video Balun, you can transmit composite baseband video signals across Category 3 or better unshielded twisted-pair (UTP) cable, which is already wired into most commercial sites. Use pairs of Baluns to transmit standard NTSC, PAL, or SECAM composite video: The Balun near the video source takes a single composite baseband video 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.

Connect the Video Balun (IC440A) to a site’s structured cabling through a modular wall jack in the work area. Each Video Balun has a BNC connector at one end and an RJ-45 jack at the other end.

Connect the CCTV Video Balun (IC444A) to a site’s structured cabling by screwing a wire pair into its terminals. Each CCTV Video Balun has a BNC connector at the other end.

The Video Balun is designed for use with modular equipment and flexible configurations, while the CCTV Video Balun is designed for use with fixed equipment and semipermanent configurations. Compatible devices include: CCTV cameras and monitors, videocassette recorders (NTSC, PAL, or SECAM), laserdisc and DVD players, videoconferencing hardware, and other baseband audiovisual equipment. Applications include: modular security/surveillance monitoring, video bulletin boards, financial information services, news services, education, video training, airport displays, video capture, and informational displays in stock exchanges, hotels, and convention centers.

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VIDEO BALUNS AND CCTV VIDEO BALUNS

3. Installation

To install a pair of Video Baluns or CCTV Video Baluns, take these steps:

CAUTION!

It is necessary to open CCTV Video Baluns (IC444A) in order to install them, but do not attempt to open the housings of Video Baluns

(IC440A). There are no user-serviceable parts inside.

1. Make sure that the video-destination device is not too far away from the videosource device (refer to the Maximum Distance specification in Chapter 1). If the destination device is beyond the reach of the source Balun, the video signal the device receives will be weak or nonexistent.

2. Follow the manufacturer’s instructions for turning off power to the video equipment you will be attaching, and for disconnecting that equipment from

AC power and from all other devices.

3. Make certain that the telecommunications outlets and cross-connects to which you will connect the Baluns are configured properly and are labeled so that the circuit can be identified.

4. Verify that the twisted-pair circuit you want to use is not already being used for other LAN or telephone equipment.

CAUTION!

Do not connect the Video Balun or CCTV Video Balun to a telecommunication outlet wired to unrelated equipment. Making such a connection may damage the equipment and/or the Balun. Please make sure that all wiring is straight-through-pinned.

Do not mount the Balun over equipment-ventilation openings.

Covering the openings may cause the equipment to overheat.

5. For each Balun—depending on what type of equipment you are attaching it to—either plug its BNC male connector directly into the device’s BNC female connector, or plug the Balun into a cable that runs to the device (this cable must have a BNC female connector on the Balun end).

6

CHAPTER 3: Installation

6A. Video Baluns (IC440A) only: Connect one end of a UTP cable to each Balun’s

RJ-45 modular jack, as shown in Figure 3-1 below. These cables must carry at least one wire pair; these wires must be on RJ-45 Pins 7 (ring) and 8 (tip).

6B. CCTV Video Baluns (IC444A) only: Look closely at the top of the terminal end of one of your baluns. You will notice two small holes. These are where your wires will enter the Balun. Once you find the holes, carefully slide off each

Balun’s top panel (it slides toward the terminal end). You will see an internal terminal behind each of the external terminal screws. Lay the wires of a UTP cable’s twisted pair in the grooves where the holes you found are; then insert one of the wires in one terminal and insert the other wire in the other terminal. (You might have to unscrew the screws slightly to do this. It doesn’t matter which wire goes to which terminal, although we recommend straightthrough wiring.) Now tighten the screws and carefully slide the Balun’s top panel back on.

Video Balun

(IC440A), side view

Ring on Pin 7

Tip on Pin 8

Category 3 or higher UTP

CCTV Video Balun (IC444A), top view

Figure 3-1. Attaching UTP cable to the Balun.

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VIDEO BALUNS AND CCTV VIDEO BALUNS

7. Plug or hardwire the other end of each UTP cable into the appropriate video wall outlet or patch panel. When this is done, a complete cabling circuit should run between the two baluns, as shown in Figure 3-2 below.

Category 3 or higher UTP

Figure 3-2. Two Baluns cabled together.

8. Reconnect and power up the video equipment.

Your Balun system should be ready for continuous operation.

8

CHAPTER 4: Troubleshooting

4. Troubleshooting

4.1 Things to Try If Problems Occur

If at any time your Video Balun or CCTV Video Balun system does not seem to be working properly, take these steps:

1. Following the manufacturer’s instructions, perform diagnostics on your video equipment.

2. If this doesn’t solve the problem, check all cable connections and the integrity of your site wiring.

3. You might be trying to transmit the video signals across too great a length of cable. The maximum distance over which the Baluns can transmit and receive video signals depends on your cable and your video equipment; refer to the

Maximum Distance

specification in Chapter 1 .

4. Make sure that the patch cord you are running beteen the Balun and your site’s wiring system is the correct cable type and is properly pinned (see the

Cable Required

specification in Chapter 1).

5. If possible, replace the Baluns involved in the problem with Baluns that are known to be working, one at a time. 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.

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VIDEO BALUNS AND CCTV VIDEO BALUNS

4.2 Calling Black Box

If you determine that a Video Balun or CCTV Video Balun is malfunctioning, do

not attempt to alter or repair the unit. It contains no user-serviceable parts. Contact

Black Box Technical Support at 724-746-5500.

Before you do, make a record of the history of the problem. We will be able to provide more efficient and accurate assistance if you have a complete description, including:

• the nature and duration of the problem;

• when the problem occurs;

• the components involved in the problem;

• any particular application that, when used, appears to create the problem or make it worse; and

• the results of any testing you’ve already done.

4.3 Shipping and Packaging

If you need to transport or ship your Video Balun or CCTV Video 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.

10

NOTES

NOTES

© Copyright 1997. Black Box Corporation. All rights reserved.

1000 Park Drive • Lawrence, PA 15055-1018 • 724-746-5500 • Fax 724-746-0746

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