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14

VIDEO CCTV-A/V HUB

3.2 Typical Applications 

Figures 3-7 and 3-8 show a pair of typical applications.

Figure 3-7. A hub-based closed-circuit security video system.

Figure 3-8. A hub-based classroom-video-broadcast system.

Fixed cameras in

hallway and stairwell

Fixed camera

in parking lot

Baluns are all

CCTV Balun

(IC444A); hub-

to-balun cables

are all CAT5

UTP with at

least one pair

Baluns are all

Video Stereo

Audio Balun

(IC441A-R2);

hub-to-balun

cables are all

CAT5 UTP

with at least

three pairs

Hub

VCR or DVD

player

Monitors with

powered

speakers

Monitoring

station

Video

switch

(input from

cameras,
output to

hub and

VCR)

Hub

VCR

Omnidirectional

cameras in rooms

Summary of Contents for VIDEO CCTV-A/V HUB

Page 1: ...U S call 724 746 5500 FREE technical support 24 hours a day 7 days a week Call 724 746 5500 or fax 724 746 0746 Mailing address Black Box Corporation 1000 Park Drive Lawrence PA 15055 1018 Web site w...

Page 2: ...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 modi...

Page 3: ...arato el ctrico debe ser montado a la pared o al techo s lo como sea recomendado por el fabricante 8 Servicio El usuario no debe intentar dar servicio al equipo el ctrico m s all a lo descrito en las...

Page 4: ...ber 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...

Page 5: ...cations 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...

Page 6: ...evices 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...

Page 7: ...e 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...

Page 8: ...achable 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...

Page 9: ...f 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 po...

Page 10: ...nd 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 cablin...

Page 11: ...estimate it by performing a DC resistance test with a digital ohmmeter as shown in Figure 3 1 1000 feet 305 m of 24 AWG cable should give a reading of approximately 26 ohms 52 ohms if you are measurin...

Page 12: ...b and straight through pinned cable Figure 3 2 shows the difference between a balun RJ 45 pinning that needs straight through cable straight polarity and one that needs cross pinned cable reverse pola...

Page 13: ...V source devices to the RJ 45 input jack on the hub s rear panel as shown in Figure 3 5 7 One at a time connect the twisted pair cables coming from the A V destination devices into the RJ 45 output j...

Page 14: ...igure 3 6 Hub to balun output connection IC446A balun shown Straight through 4 pair CAT5 cable with RJ 45 plugs Straight through 4 pair CAT5 cable with RJ 45 plugs Dual Audio Video Balun IC446A Audio...

Page 15: ...ras in hallway and stairwell Fixed camera in parking lot Baluns are all CCTV Balun IC444A hub to balun cables are all CAT5 UTP with at least one pair Baluns are all Video Stereo Audio Balun IC441A R2...

Page 16: ...g output of the first hub to the input port of the second hub the left hand RJ 45 jack on its rear panel The cable must be straight through pinned and terminated with RJ 45 plugs on either end Your da...

Page 17: ...hed to its looping output and eight other second layer hubs connected to its regular outputs are used to distribute an A V program to up to 72 monitors in an auditorium multi classroom or corporate tr...

Page 18: ...rity might be reversed there might be a cable pinning pairing or construction problem or there might be a pinning mismatch between the hub and baluns Try these remedies Verify that polarity is straigh...

Page 19: ...e nature and duration of the problem when the problem occurs the components involved in the problem including the models of baluns type make and length of cabling and the source and destination A V eq...

Page 20: ...1000 Park Drive Lawrence PA 15055 1018 724 746 5500 Fax 724 746 0746 Copyright 2002 Black Box Corporation All rights reserved Doc No 94 000338 A...

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