Black Box IC569A Bruksanvisning

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Specifications
Specifications
Environment Composite video (NTSC, PAL, SECAM) equipment
Devices DVD players, VCR, satellite receivers, MPEG players, laptops, notebooks,
monitors, LCD projectors, CCD cameras, video switchers, sequencers, digital
video servers, video multiplexers, video splitters, video converters and other
composite video equipment.
Transmission Transparent to the user.
Composite Video Audio
Bandwidth DC to 6 MHz 20 Hz to 20 KHz over the
distance range
Impedance 75 ohms 600 ohms min.
Max. Input 1.1Vp-p 1.1Vp-p
Insertion Loss Less than 2 dB per pair over the
frequency range from DC to 6 MHz Less than 2 dB per pair over the
frequency range.
Return Loss Better than 15 dB over the frequency
range N/A
Common Mode
Rejection
Greater than 40 dB over the frequency
range N/A
Max. Distance – Cat
5 UTP
2,200 ft. (670m) 3,250 ft (990m)
Pin Configuration
(RJ45)
Video: pins 7[R] &8 [T]
Reverse Polarity Sensitive
Audio 1: pins 1[R] & 2 [T]
Audio 2: pins 3 [R] & 6 [T]
Cable – UTP
24AWG or lower solid copper twisted pair wire
Impedance: 100 ohms at 1 MHz; Maximum capacitance: 20 pf/foot.
Attenuation: 6.6 dB/1000 ft at 1 MHz
Connectors One (1) RCA-M for video (yellow)
Two (2) RCA-M for stereo audio (red, white)
One (1) RJ45 for Cat5
Temperature Operating: 0º to 55º C. Storage:-20º to 85º C. Humidity: up to 95%
Enclosure Fire retardant plastic
Dimensions 2.40” x 2.25” x 1.00” (6.1 x 5.7 x 2.54 cm) plus 6” (15.24cm) cable leads for
video and stereo audio
Weight 3.1 oz (89 gms)
Warranty Lifetime
Order Information IC569A Stereo Balun with Video
© Copyright 2006. Black Box Corporation. All rights reserved
(BB)94 000611- -A (BB)SE- -000595 A
October 2006
Stereo Balun with Video (IC569A)
Quick Installation Guide
Overview
The Stereo Balun with Video (IC569A) allows a single composite video signal to be
transmitted via unshielded twisted pair (UTP) cable up to 2,200 ft (670m) in a point- -to
point connection. The IC569A features full audio bandwidth response for high fidelity
applications and features built-in color-coded cable leads for ease of installation. The
IC569A also works in conjunction with Black Box’s Audio-Video Distribution Hub (p/n
IC445A) to allow composite video programming to be distributed via UTP. Applications
include; classroom video distribution, commercial and home audio/video systems, hospital
video training, video conferencing, and video kiosks.
Installation
One (1) pair of baluns are needed to complete one composite stereo audio-video
connection via Cat5 twisted pair. To install the baluns, perform the following steps:
1. Identify the pin configuration of the baluns. One (1) twisted pair is required for
composite video and two (2) twisted pairs are required for stereo analog audio.
The pin configuration follows the EIA/TIA 568A/B standard. The IC569A is
reverse polarity sensitive. Please ensure that wiring is straight-through (Ring to
Ring, Tip to Tip).
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 724 746
0746 Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA
15055 1018- . Web site: www.blackbox.com E-mail: info@blackbox.com
2. Plug one (1) balun into the composite video/stereo audio output of the video source
according to the color code of the RCA cable leads.
3. Plug the second balun into the composite video/stereo audio input of the video screen
or receiver at the remote end.
4. Complete the connection between the two baluns, using standard Cat5 twisted pair
cable and connecting hardware, terminated on RJ45 plugs at both ends. Ensure that
there are no split pairs or taps.
5. Power- -on the audio video equipment. Check the image quality and refer to the
troubleshooting table below if the image quality is unsatisfactory. The following
diagram shows a typical installation.
Troubleshooting
The following tables describe some of the symptoms, probable causes and possible
solutions in respect to the installation of the IC569A. If you still cannot diagnose the
problem, please call Black Box Tech Support at 724- -746 5500.
Video
Symptom Probable Causes Possible Solutions
No video No continuity in video
link Verify cable continuity between pairs
of baluns.
No video Power off Check power supplies of video
equipment.
No video Improper connection
Swapped pairs Check that baluns are connected to
correct video inputs and outputs.
Unusual colors Reversed polarity Check wiring and ensure straight-
through polarity
Background
pattern EMI interference Identify possible radiating frequency
sources (ie; wireless LANs, switching
power supplies) Try to isolate them
from the video connection. Use
shielded twisted pair grounded at both
ends.
Smearing
Exceeded distance Verify cable grade. Use higher grade
cable if necessary.
Weak contrast Exceeded distance Verify cable grade. Use higher grade
cable if necessary. Increase contrast
on monitor.
Weak contrast Unusual link attenuation Verify cable distance using ohmmeter
or cable tester.
Image not stable Defective link or
equipment Verify video equipment interface
integrity.
Horizontal bars
moving slowly Substantial crosstalk
between multiple video
sources
Consecutively turn off other video
sources to determine which video
source is the cause of interference.
Snowy picture Distance is near limit Verify cable grade. Use higher grade
cable if necessary. Reduce color
intensity at monitor.
Audio
Symptom Probable Causes Possible Solutions
Poor audio quality EMI interference. Check that wiring is not too close to
transformers and ballasts.
Split pair Ensure that the UTP pairs are not split
and that each pair of wires is twisted.
No audio No power Check your audio system for power.
Open circuit Check wiring to ensure continuity
Defective balun Change Stereo Hi-Fi/Video Baluns for
another pair.
Audio phase
cancellation Reversed wires Check for straight-through wiring.
Audio weak Distance specifications
exceeded Check DC loop resistance and verify
if distance spec is exceeded. Reduce
cable length or eliminate high-loss
components.

Produktspecifikationer

Varumärke: Black Box
Kategori: Inte kategoriserad
Modell: IC569A

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