Black Box IC443A-R2 Manuale utente

CUSTOMER

SUPPORT

INFORMATION

Order toll-free in the U.S.: Call 877-877-BBOX (o tside U.S. call 724-746-5500)

FREE technical s pport 24 ho rs a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746

Mailing address: Bla k Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018

Web site: www.bla kbox. om • E-mail: info@bla kbox. om

JUNE 2002

IC443A-R2

Video Mono Audio Baluns

AUDIO 1

PAIR 1

(4 & 5)

Video Mono

Audio B lun

VIDEO 1

PAIR 4

(7 & 8)

AUDIO 2

PAIR 2

(3 & 6)

VIDEO 2

PAIR 3

(1 & 2)

FCC/IC RFI STATEMENTS, TRADEMARKS

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 are required to connect this device to

other Class B certified devices.

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.

TRADEMARKS USED IN THIS MANUAL

BLACK BOX and the logo are registered trademarks of Black Box

Corporation.

VELCRO®is a registered trademark of Velcro USA Inc.

Any other trademarks mentioned in this manual are acknowledged to be the property of the

trademark owners.

VIDEO MONO AUDIO BALUNS

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.

3. Todas las advertencias en el aparato eléctrico y en sus instrucciones de

operación deben ser respetadas.

4. Todas las instrucciones de operación y uso deben ser seguidas.

5. El aparato eléctrico no deberá ser usado cerca del agua—por ejemplo, cerca

de la tina de baño, lavabo, sótano mojado o cerca de una alberca, etc..

6. El aparato eléctrico debe ser usado únicamente con carritos o pedestales que

sean recomendados por el fabricante.

7. El aparato eléctrico debe ser montado a la pared o al techo sólo como sea

recomendado por el fabricante.

8. Servicio—El usuario no debe intentar dar servicio al equipo eléctrico más allá

a lo descrito en las instrucciones de operación. Todo otro servicio deberá ser

referido a personal de servicio calificado.

9. El aparato eléctrico debe ser situado de tal manera que su posición no

interfiera su uso. La colocación del aparato eléctrico sobre una cama, sofá,

alfombra o superficie similar puede bloquea la ventilación, no se debe colocar

en libreros o gabinetes que impidan el flujo de aire por los orificios de

ventilación.

10. El equipo eléctrico deber ser situado fuera del alcance de fuentes de calor

como radiadores, registros de calor, estufas u otros aparatos (incluyendo

amplificadores) que producen calor.

11. El aparato eléctrico deberá ser connectado a una fuente de poder sólo del

tipo descrito en el instructivo de operación, o como se indique en el aparato.

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.

14. El equipo eléctrico debe ser limpiado únicamente de acuerdo a las

recomendaciones del fabricante.

15. En caso de existir, una antena externa deberá ser localizada lejos de las lineas

de energia.

16. El cable de corriente deberá ser desconectado del cuando el equipo no sea

usado por un largo periodo de tiempo.

17. Cuidado debe ser tomado de tal manera que objectos liquidos no sean

derramados sobre la cubierta u orificios de ventilación.

18. Servicio por personal calificado deberá ser provisto cuando:

A: El cable de poder o el contacto ha sido dañado; u

B: Objectos han caído o líquido ha sido derramado dentro del aparato; o

C: El aparato ha sido expuesto a la lluvia; o

D: El aparato parece no operar normalmente o muestra un cambio en su

desempeño; o

E: El aparato ha sido tirado o su cubierta ha sido dañada.

VIDEO MONO AUDIO BALUNS

Contents

Chapter Page

1. Specifications ............................................................................................. 5

2. Introduction ............................................................................................... 7

3. Installation .................................................................................................. 8

4. Troubleshooting ...................................................................................... 11

4.1 Things to Try If Problems Occur ..................................................... 11

4.2 Calling Black Box .............................................................................. 12

4.3 Shipping and Packaging ................................................................... 12

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: RJ-45 plugs;

Pairs: Four (8 wires used) to carry all video and audio

channels;

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:

Video: (1) Standard 75-ohm RG-59/U coaxial cable with a

BNC male connector on the Balun end;

Audio: (2) Standard RCA phono cables

Compliance: FCC Class B, IC Class/classe B;

CISPR Pub. 22 Class B

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

Impedance: Coaxial side: 75 ohms;

Phono side: 600 ohms;

UTP side: 100 ohms

Bandwidth: Video: DC to 8 MHz;

Audio: 20 Hz to 50 kHz

Maximum RF

Input: 1.1 volts at 60 Hz

Insertion Loss: Less than 2 dB over the DC-to-8-MHz frequency range

Return Loss: Greater than 15 dB over the DC-to-8-MHz frequency range

Common-Mode

Rejection: Greater than 40 dB at 8 MHz

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

VIDEO MONO AUDIO BALUNS

Connectors: (1) RJ-45 female and (4) RCA female

RJ-45 Pins Used: All: Pin 1 is video 2, Pin 2 is video 2 ground, Pin 3 is audio 2,

Pin 4 is audio 1,. Pin 5 is audio 1 ground, Pin 6 is audio 2

ground, Pin 7 is video 1, and Pin 8 is video 1 ground

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: Fire-retardant plastic with included optional VELCRO®

mounting material

Size: 2.3"H x 2.4"W x 1"D (5.8 x 6.1 x 2.5 cm)

Weight: 2.8 oz. (79.3 g)

CHAPTER 2: Introduction

2. Introduction

With the Video Mono Audio Balun, you can transmit two pairs of composite

baseband video and mono audio 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 composite video with mono audio: In a normal two-way

(full-duplex) application, the Balun on each end takes a single composite

baseband video signal and a monaural audio signal from 600-ohm RCA type phono

cables, converts the signals, and transmits them over UTP cable to the other Balun,

which converts them back and sends them to their destination. (If your application

needs both sets of signals to travel in the same direction, the Baluns can do this

too.)

Connect the Video Mono Audio Balun to a site’s structured cabling through a

modular wall jack in the work area. Each Balun has four RCA connectors at one

end and an RJ-45 jack at the other end.

The Video Mono Audio Balun is designed for use with CCTV cameras and

monitors, videocassette recorders, camcorders, and other baseband audiovisual

equipment, but is especially useful in two-way videoconferencing applications.

VIDEO MONO AUDIO BALUNS

3. Installation

To install a pair of Video Mono Audio Baluns, take these steps:

CAUTION!

Do not ttempt to open the housing. There re no user-service ble p rts

inside the Video Mono Audio B lun. Opening the unit will void your

w rr nty.

1. Make sure that the video devices at either end are not too far away from each

other (refer to the Maximum Distance specification in Chapter 1). If either

device is beyond the reach of the Balun at the other end, the signals the

device receives will be weak or nonexistent.

2. Follow the manufacturer’s instructions for (a) turning off power to the video

and audio equipment you will be attaching and (b) 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.

CAUTION!

Do not connect the Video Mono Audio B lun to telecommunic tion

outlet wired to unrel ted equipment. M king such connection m y

d m ge the equipment nd/or the B lun. M ke sure th t ll wiring is

str ight-through-pinned.

4. Verify that the twisted-pair circuit you want to use is not already being used

for other LAN or telephone equipment.

5. Optional: Each Balun comes with VELCRO®mounting pads. To mount a

Balun to a surface, first make sure that that surface is free of dust, oil, etc., so

the VELCRO will adhere to it. Then peel off the adhesive backing, attach one

side of the pads to the Balun, and attach the other side to the surface.

CAUTION!

Do not mount the B lun over equipment-ventil tion openings. Doing so

might d m ge the B lun or c use the equipment to overhe t.

CHAPTER 3: Installation

6A. If your application is two-way (that is, one pair of audio/video signals going one

direction and one pair going the other direction): Run four RCA phono cables from

each Balun to the attached device:

• one from the Balun’s VIDEO 1 port to the device’s VIDEO AUX IN port;

•

one from the Balun’s VIDEO 2 port to the device’s VIDEO AUX OUT port;

• one from the Balun’s AUDIO 1 port to the device’s AUDIO IN port; and

• one from the Balun’s AUDIO 2 port to the device’s AUDIO OUT port.

(These cables must have RCA male connectors on the Balun end.) Make sure

that the VIDEO IN and AUDIO IN ports of the device on one end of the link

are connected to the VIDEO OUT and AUDIO OUT ports of the device on

the other end. Refer to Figure 3-1.

6B. If your application is one-way (that is, both pairs of audio/video signals going the same

direction): Run four RCA phono cables from each Balun to the attached

devices:

• On the source end, these cables should go from the Balun’s VIDEO and

AUDIO ports to the devices’ VIDEO AUX OUT and AUDIO OUT ports.

• On the destination end, these cables should go from the Balun’s VIDEO

and AUDIO ports to the devices’ VIDEO AUX IN and AUDIO IN ports.

(These cables must have RCA male connectors on the Balun end.) Refer to

Figure 3-1.

Figure 3-1. The Balun and its connectors.

7. Connect one end of a UTP cable into each Balun’s RJ-45 modular jack. To

carry the first video signal, these cables must carry a wire pair pinned to RJ-45

Pins 7 and 8. To carry the second video signal, the cables must carry a pair

pinned to Pins 1 and 2. To carry the first audio signal, the cables must carry a

pair pinned to Pins 4 and 5. To carry the second audio signal, the cables must

carry a pair pinned to Pins 3 and 6.

VIDEO 1

PAIR 4

(7 & 8)

VIDEO 2

PAIR 3

(1 & 2)

AUDIO 2

PAIR 2

(3 & 6)

Video Mono

Audio B lun

AUDIO 1

PAIR 1

(4 & 5)

RJ-45 for UTP

Indice

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