Black Box VIDEO CCTV-A/V HUB User manual

CUSTOMER
SUPPORT
INFORMATION
Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500)
FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax [phone]
Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018
Web site: www.blackbox.com • E-mail: [email protected]
DECEMBER 2002
IC445A
Video CCTV-A/V Hub

1
FCC/IC RFI STATEMENTS, EU DECLARATION OF CONFORMITY
FEDERAL COMMUNICATIONS COMMISSION AND INDUSTRY CANADA
RADIO-FREQUENCY INTERFERENCE STATEMENTS
This equipment generates, uses, and can radiate radio-frequency energy, and if not
installed and used properly, that is, in strict accordance with the manufacturer’s
instructions, may cause interference to radio communication. It has been tested
and found to comply with the limits for a Class A computing device in accordance
with the specifications in Subpart B of Part 15 of FCC rules, which are designed to
provide reasonable protection against such interference when the equipment is
operated in a commercial environment. Operation of this equipment in a
residential area is likely to cause interference, in which case the user at his own
expense will be required to take whatever measures may be necessary to correct the
interference.
Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
This digital apparatus does not exceed the Class A 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 la classe A prescrites dans le Règlement sur le
brouillage radioélectrique publié par Industrie Canada.
EUROPEAN UNION DECLARATION OF CONFORMITY
The manufacturer declares that this product meets the requirements of
EU Directive 89/336/EEC by complying with EN 55022.

2
VIDEO CCTV-A/V HUB
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.

3
NOM STATEMENT, TRADEMARKS
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.
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.

4
VIDEO CCTV-A/V HUB
Contents
Chapter Page
1. Specifications ............................................................................................. 5
2. Introduction ............................................................................................... 8
3. Installation .................................................................................................. 9
3.1 Installing a Single Hub ....................................................................... 9
3.2 Typical Applications ......................................................................... 14
3.3 Installing a Hub in a Daisychain or Cascade ................................... 15
4. Troubleshooting ...................................................................................... 17
4.1 Common Concerns ........................................................................... 17
4.2 Calling Black Box .............................................................................. 18
4.3 Shipping and Packaging ................................................................... 18

5
CHAPTER 1: Specifications
1. Specifications
Cable Required: Between hub and baluns: Unshielded twisted pair (UTP):
Construction standard: Category 3 or higher;
Gauge: 24 AWG or lower;
Core: Solid;
Termination: RJ-45 plugs;
Pairs: Number needed depends on baluns (see balun
manuals); cable with four pairs (eight wires) can support
all balun models;
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) at
1 MHz;
To attached devices: Depends on baluns (see balun
manuals)
Compliance: CE (EN 55022); FCC Class A, IC Class/classe A;
CISPR Pub. 22 Class B
Video Support: S-Video; NTSC or PAL composite (baseband) video
Transmission: Transparent to users (automatic, no delay)
Required Source
Impedance: Video OUT: 75 ohms;
Audio OUT (if any): 600 ohms maximum
Required Destination
Impedance: Video IN: 75 ohms;
Audio IN (if any): 600 ohms minimum
Hub Impedance: Video IN and video OUT: 100 ohms balanced;
Audio IN: 10 kiloohms minimum balanced;
Audio OUT: 600 ohms balanced
Bandwidth (3 dB): Video: DC to 8 MHz;
Audio: 50 Hz to 16 kHz
Maximum
Differential
Input and Output: Video: 0.55 volts peak-to-peak;
Audio: 0.5 volts peak-to-peak

6
VIDEO CCTV-A/V HUB
Differential
Insertion Loss: Video: 0 dB maximum at 4 MHz;
Audio: 1 dB maximum at 1 MHz
Video Return Loss: 24 dB minimum
Common-Mode
Rejection: Input balanced, output unbalanced;
Video: Greater than 40 dB over the frequency range;
Audio: Greater than 60 dB over the frequency range
Crosstalk Immunity: 60 dB minimum over the frequency range
Maximum
Distance: Total end to end, from source device through hub(s) to
destination device, over good CAT5 cable (assuming A/V
source outputs signal at normal strength):
Black & white composite video: 2500 ft. (762 m);
Color composite video: 2200 ft. (671 m);
S-Video: 1000 ft. (305 m)
Indicator: (1) Front-mounted power LED
Connectors: (10) RJ-45 female:
(1) rear-mounted for input;
(1) rear-mounted for looping output;
(8) front-mounted for regular output;
(1) Rear-mounted 5-pin DIN female power inlet
RJ-45 Pins Used: All: Pin 1 is audio 1 ring, Pin 2 is audio 1 tip, Pin 3 is audio 2
ring, Pin 4 is video 2 ring, Pin 5 is video 2 tip, Pin 6 is
audio 2 tip, Pin 7 is video 1 ring, and Pin 8 is video 1 tip
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: Aluminum

7
CHAPTER 1: Specifications
Power: From utility-power (mains) outlet to power inlet, through
detachable external power supply:
Input: 100 to 250 VAC at 50 or 60 Hz (autosensing), up to
700 mA;
Output: +5 VDC at up to 4 A; +12 VDC at up to 1 A;
-12 VDC at up to 0.6 A;
Consumption: 5 watts maximum
Size: 1.3"H x 8.5"W x 4"D (3.3 x 21.6 x 10.2 cm)
Weight: Hub chassis: 1 lb. (0.5 kg);
Power supply 1.5 lb. (0.7 kg)

8
VIDEO CCTV-A/V HUB
2. Introduction
The Video CCTV-A/V Hub distributes one or two S-Video or baseband video
signals and one or two audio signals to be distributed to up to eight destinations on
unshielded twisted-pair (UTP) cable for more cost-effective and versatile cabling.
When used in conjunction with any of several of our video baluns (such as
product codes IC440A, IC441A-R2, IC444A, IC446A, and IC447A), the Video
CCTV-A/V Hub eliminates the need to run expensive coaxial cable or audio cable
between the audio/video (A/V) source and destination devices. You can run UTP
cable instead, which is already wired into most commercial sites, to distribute audio
and video signals to multiple locations. For even greater versatility, a looping
output allows the source input to be distributed to additional daisychained or
cascaded hubs.
You can connect a set of the Video CCTV-A/V Hub’s RJ-45 jacks to your site’s
structured cabling through a modular wall jack in the work area. The video and
audio twisted pairs are independent of each other; it’s not necessary to use all of
them in a given application, and it’s not necessary for all signals to be transmitted
in the same direction. The hub is designed for one-to-many point-to-point
configurations; further expansion through cable tapping is not supported.
The hub is designed for use with CCTV cameras and monitors, videocassette
recorders, camcorders, switchers, multiplexors, and other baseband or S-Video
audiovisual devices. Use it in applications such as CCTV security and surveillance,
classroom audio/video instruction, corporate audio/video presentations, and
trade-show demonstration systems.
Here are some of the useful features of the hub:
• Distributes CCTV and A/V to multiple destinations over twisted pair, creating
a centralized cabling system that replaces costly and bulky coax.
• Standard modular RJ-45 connections for quicker moves, adds, and changes.
• Supports S-Video and NTSC and PAL composite video
• Color transmission over as much as 2200 feet (671 m) of CAT5 between the
source and destination.
• Supports up to 2 video and 2 audio channels.
• Integrates seamlessly with many IC440 series baluns.
• Supports looping output to daisychain or cascade to other hubs.
• Rubber stand-offs for desktop placement.

9
CHAPTER 3: Installation
3. Installation
3.1 Installing a Single Hub
To install a Video CCTV-A/V Hub that isn’t daisychained or cascaded with any
other devices, follow the steps below.
CAUTION!
Do not attempt to open the housing. There are no user-serviceable parts
inside the Video CCTV-A/V Hub.
To avoid electrical interference, keep your equipment, baluns, and
cables away from neon or fluorescent lights, generators, electric
motors, high-voltage lines, and other sources of high-voltage or high-
frequency electromagnetic signals.
Keep in mind that video and audio 1 form one set of signals, while
video and audio 2 form another set.
1. The Video CCTV-A/V Hub is polarity sensitive and works in conjunction with
many of our IC440 series video baluns. If you want to use the hub with baluns
that have an opposite signal polarity, you’ll need to reverse the signal polarity
of the cabling between the hub and the baluns (that is, cross-pin it). Make
sure, however, that the pinout of any balun you use with the hub has the same
pinout as the hub. (A table that shows the hub’s pinout is printed on the
hub’s rear panel.)
2. Connect the appropriate video baluns to the audio/video source and
destination devices, following the directions in the baluns’ manual. Run the
appropriate patch cables from the baluns to your site’s twisted-pair cabling
system.
The hub supports up to two video and two audio channels. So the hub will
work with the:
• Video Balun (IC440A);
• Video Stereo Audio Balun (IC441A-R2);
• CCTV Video Balun (IC444A);
• Dual Audio/Video Balun (IC446A); and
• S-Video Balun (IC447A).