VideoEase™ Audio-Video Hub (500200)
94-000278-C
Installation Guide
©MuxLab Inc. Audio-Video Hub Installation Guide
Copyright Notice :
Copyright © 2002 MUXLAB Inc. All rights reserved.
Printed in Canada. No part of this publication may be reproduced, stored in a retrieval
system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise without prior written permission of the author.
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©MuxLab Inc. Audio-Video Hub Installation Guide
Table of Contents
1. Overview ........................................................................................................................4
1.1. Description........................................................................................................4
1.2.1. Applications............................................................................................5
1.2.2. Benefits ...................................................................................................5
1.2.3. Features...................................................................................................5
2. Technical Specifications ................................................................................................6
3. Installation Procedure ..................................................................................................7
3.1. Installation ........................................................................................................7
3.2. Typical Applications.......................................................................................12
3.3. Cascading Multiple Hubs ...............................................................................13
4. Troubleshooting......................................................................................................15
4.1. Symptoms, Causes and Possible Solutions.....................................................15
4.2. Technical Support Information.......................................................................16
5. Manufacturer’s Limited Warranty...........................................................................17
Notes..................................................................................................................................18
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MuxLab Inc. Technical Specifications
1.
Overview
1.1. Description
The VideoEase Audio-Video Hub allows up to two (2) baseband video signals and up to
two (2) audio signals to be distributed to up to eight (8) destinations via twisted pair
(UTP) cable for more cost-effective and versatile cabling.
The Audio-Video Hub when used in conjunction with MUXLAB’s line of VideoEase
baluns, allows coaxial cable to be eliminated between the Audio-Video source and the
destinations. For example, the product works with the VideoEase CCTV Balun (500000,
500009), VideoEase Stereo Audio/Video Balun (500001),VideoEase Dual Audio/Video
Balun (500012), S-Video Balun (500016) and S-Video/Audio Balun (500017).
The Audio-Video Hub allows CCTV and audio-video signals to be distributed to multiple
locations via standard twisted pair cabling instead of costly coaxial video cable or audio
cable.
A looping output allows the source input to be distributed to other baseband audio/video
equipment including matrix switchers, multiplexers, VCRs and monitors and other
VideoEase Audio-Video Hubs for greater versatility. The video and audio twisted pairs
are independent of each other and it is not necessary to use all of them in a given application. The Audio-Video Hub is designed for point-to-point configurations and further
expansion via cable tapping is not supported.
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MuxLab Inc. Technical Specifications
1.2 Applications, Benefits and Features
1.2.1. Applications
CCTV security and surveillance
Classroom audio/video instruction
Corporate audio/video presentations
Tradeshow demonstration systems
1.2.2. Benefits
Distribute CCTV and audio-video to multiple destinations via twisted pair
Eliminates costly and bulky coax cable
Centralised cabling for greater control
Quicker moves, adds and changes
1.2.3. Features
Supports NTSC and PAL
Up to 2200 feet between the source and destination via Cat 5 twisted pair in color..
Supports up to 2 video and 2 audio channels
Integrates seamlessly with MUXLAB VideoEase baluns
Looping output to cascade to other hubs or audio-video equipment
Rubber stand-offs for desktop placement
2-year warranty
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MuxLab Inc. Technical Specifications
2.
Technical Specifications
Specifications
Environment
Devices
Transmission
Source Impedance Req’ts
Destination Impedance Req.
Hub Impedance
3 dB Bandwidth
Maximum Differential Input
Maximum Differential Output
Insertion Loss (differential)
Video Return Loss
Common Mode Rejection
Input: balanced. Output:
unbalanced
Crosstalk Immunity
Max. Distance via
Cat 5 Twisted Pair (UTP) *
Cable – UTP
Connectors
RJ45 Pin Configuration
Reverse Polarity Sensitive
Diagnostics
Power Supply
Power Supply Connector
Temperature
Dimensions
Compliance
Warranty
Order Information
Close-Circuit TV (CCTV) equipment for security and surveillance; composite baseband
audio/video (ie; NTSC, PAL); S-Video.
CCTV cameras, CCTV monitors, video switchers, video sequencers, multiplexers and
other CCTV equipment. VCR, DVD, video-conferencing and other baseband
audio/video equipment.
Transparent to the user.
Video OUT: 75 ohms Audio OUT: 600 ohms max.
Video IN: 75 ohms Audio IN: 600 ohms min.
Video IN: 100 ohm balanced Audio IN: 10 kohms min. balanced
Video OUT: 100 ohms balanced Audio OUT: 600 ohm balanced
Video: DC to 8 MHz. Audio:50 Hz to 16 kHz
Video: 0.55 Vp-p Audio: 0.50 Vp-p
Video: 0.55 Vp-p Audio: 0.50 Vp-p
Video: 0 dB max. @ 4 MHz
Audio: 1 dB max. @ 1 kHz
24 dB minimum
Video: Greater than 40 dB over the frequency range.
Audio: Greater than 60 dB over the frequency range.
60 dB minimum over the frequency range
Composite Video Color: 2200 ft (670m) *
Composite Video B&W: 2500 ft (762m) *
S-Video: 1000 ft (305m) *
*Measured between Source (ie;DVD) and Destination (ie;Monitor) with Hub placed anywhere
between the source and destination
24 gauge or lower solid copper twisted pair wire impedance: 100 ohms at 1 MHz. Cat 3
or better.
Source Input: One (1) RJ45 jack on rear panel
Looping Output: One (1) RJ45 jack on rear panel
Distribution Outputs: Eight (8) RJ45 jack on front panel
Video 1: Ring 7 Tip 8 Audio 1: Ring 1 Tip 2
Video 2: Ring 4 Tip 5 Audio 2: Ring 3 Tip 6
Power LED – Green
External AC: 110V and 220/240V
DC: +/- 12VDC, 5W total max.
5-pin DIN; pin 1 GND, pin 2 GND, pin 4 -12V, pin 5 +12V.
Operating: 0 to 55 C. Storage:-20 to 85 C. Humidity: up to 95% non-condensing
8.5” x 4” x 1.3”
FCC, CE-EMC Directive 89/336/EEC
2 years
500200 VideoEase Audio-Video 8-Port Active Hub, 110V
500201 VideoEase Audio-Video 8-Port Active Hub, 220/240V
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MuxLab Inc. Troubleshooting
3.
Installation Procedure
3.1. Installation
Follow the steps listed below to install the Audio-Video Hub :
1. The Audio-Video Hub is polarity sensitive and works in conjunction
with MUXLAB’s VideoEase video baluns. If the Audio-Video Hub
is used with baluns which have a signal polarity opposite to that of the
Audio-Video Hub, then the signal polarity of the cabling between the
hub and the video baluns may need to be reversed. Verify that the pin
configuration of the video baluns match the pin configuration of the
hub. The pin configuration of the hub is conveniently located on the
rear panel.
Pin Configuration Table
2. Connect the appropriate MUXLAB video baluns to the audio-video
source and destinations. The Audio-Video Hub supports up to two
video and two audio channels. Therefore, the Audio-Video Hub will
work in conjunction with the CCTV Balun, Stereo Audio/Video
Balun and 2-Way Audio/Video Balun. Prepare the appropriate line
cords to connect the baluns to the twisted pair cabling system in the
building.
3. Place the Audio-Video Hub in its final location.
Before connecting the cables keep the maximum cable lengths in
mind. The final location for the Audio-Video Hub must be within
maximum distance specs of the controller and of each terminal (see
Specifications section). These distances assume that the cable used
conforms to the cable requirements given in the Technical Specification section of this guide. Note that every connection is equivalent to
10' of cable and must be included in the maximum cable length calculation. If you are not sure of your cable length it can be estimated
by performing a DC resistance test with a digital ohm meter. 1000
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MuxLab Inc. Troubleshooting
feet of 24 AWG cable should give a reading of approximately 26
ohms (52 ohms if you are measuring at one end with the opposite cable ends shorted).
Computer
Twisted Pair
Drop Side
Figure 1 : Measuring Cable Impedance
The Audio-Video Hub must be kept away from sources of radiofrequency or electromagnetic radiation :
a) 5" from power lines of 2 kVA or less.
b) 12" from fluorescent lighting & power lines between 2 &
5 kVA.
c) 36" from power lines greater than 5 kVA.
d) 40" from transformers & motors.
Best performances will be achieved using home-run cable. Do not
use flat cable (i.e., cable that is not twisted), even for patching with
short runs. Flat cable acts as an antenna and will pick up nearby radio-frequency interference.
4. Identify the pin configuration of both the video balun and the AudioVideo Hub. For example, when using the VideoEase Stereo AudioVideo Balun (500001), the modular cable must use straight through
polarity.
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MuxLab Inc. Troubleshooting
Model Æ 500000 500001 500012 500016 500017
Signal CCTV
Balun
Stereo Audio-
Video Balun
Dual AudioVideo Balun
S-Video Balun S-Video/Audio
Balun
Video 1 7&8 7&8 7&8 7&8 luma 7&8 luma
Video 2 N/A N/A 4&5 4&5 chroma 4&5 chroma
Audio 1 N/A 1&2 1&2 1&2
Audio 2 N/A 3&6 3&6 3&6
Figure 2 : MUXLAB Video Balun Pin Configurations
RJ45 Pin Configuration
Video 1: Ring 7 Tip 8
Video 2: Ring 4 Tip 5
Audio 1: Ring 1 Tip 2
Audio 2: Ring 3 Tip 6
Looping OutputInput
+ 12V
NC
GND
-12V
Po we r
Figure 3 : Audio-Video Hub Back Panel
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MuxLab Inc. Troubleshooting
R
Power 4Outputs
Figure 4 : Audio-Video Hub Front Panel
Straight polarity Reverse polarity
1
8
T
R
T
5. Plug the Audio-Video Hub into the nearest AC power outlet. The
Power LED should light up and stay on.
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MuxLab Inc. Troubleshooting
VideoEase 2-Way
Audio/Video Balun
(500012)
Audio1
Video 1
Audio 2
Video 2
RJ45 Pin Configuratio n
Video 1: Ring 7 Tip 8
Video 2: Ring 4 Tip 5
Audio 1: Ring 1 Tip 2
Audio 2: Ring 3 Tip 6
Power 4Outputs
Cat 5 Twisted Pair
(4-Pair)
RJ45
8-pin modular plug
NC
Looping OutputInput
+ 12V
GND
-12V
Pow e r
Audio1
Video 1
Audio 2
Video 2
Figure 5 : Connection Diagram
6. Connect the cable coming from the audio-video source to the Input
located on the back of the Audio-Video Hub.
7. Connect, one at a time, the twisted pair cables coming from the audiovideo destinations into the front-panel ports. Power on the source
and destination equipment and send an audio/video signal from the
source. Verify the presence and quality of the audio and video.
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MuxLab Inc. Troubleshooting
A
o
3.2. Typical Applications
C
D
C
C
C
D
Cat 3 or Cat 5
Parking
VCR
Monitoring
locations
P
o
w
er
CCTV
Baluns
Mux
Twisted Pair
Distribution Hub
O
ut
4
pu
ts
Audio
udio Vide
Source
DVD or VCR
P
Ou
o
tp
w
er
Stereo Audio
Video Balun
Audio
Video
Left
Right
4
ut
s
Audio-Video Hub
Cat 5 UTP
Figure 6 : Typical Installations
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MuxLab Inc. Troubleshooting
3.3. Cascading Multiple Hubs
The Audio-Video Hub may be cascaded with another hub in order to distribute a baseband audio video source to more than eight destinations. The following picture shows
the location of the Looping Output.
Looping Output
For example an audio video presentation from a VCR or DVD source may be distributed
to multiple classrooms via pre-installed Cat 5 twisted pair cable. Due to the active electronics in the hub, the number of hubs that may be cascaded is eight (8).
DVD or VCR
VideoEase Stereo
Video Balun (500001)
Cat 5 TP (3-Pair)
18
Classroom A Classroom B
Cat 5 Twisted Pair (3-Pair)
Composite or Component
Audio/Video Monitors
Cat 5 TP (3-Pair)
916
To next hub
In order to cascade the first hub to a second hub, prepare a 4-pair Cat 5 cable from the
Looping Output of the first hub to the Input Port of the second hub. The cable must be
configured as straight-thru and terminated with RJ45 modular plugs on either end.
Note: The Distribution Ports and Looping Outputs do not amplify the signal. The
maximum distance from the source to the most distant hub or monitor may be up to 2500
feet depending on the type of audio-video signal being transmitted. The use of crossconnect blocks and patch panels is also supported. Each cross-connect results in an effective loss of distance of 5 to 10 feet. When splicing connections onto a cross-connect
block, please ensure that the individual wires remain twisted right up within 0.5” of the
cross-connect.
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MuxLab Inc. Troubleshooting
Another way of expanding the audio/video distribution network is to cascade the hubs in
a tree topology. Each of the nine outputs is identical and any of these ports may be connected to the Input Port of another hub. In the example below, nine hubs may be used to
distribute an audio-video program to up to 64 audio-video monitors in a classroom or
corporate training environment.
VideoEase Stereo
Video Balun (500001)
DVD or VCR
Cat 5 TP (3-Pair)
Cat 5 TP (3-Pair)Cat 5 TP (3-Pair)
18
Classroom A
57 64
Classroom H
Composite or Component
Audio/Video Monitors
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MuxLab Inc. Troubleshooting
4.
Troubleshooting
Reading this section carefully will surely allow you to pinpoint and resolve any type of
malfunction. If after going through this section your problems still cannot be resolved,
then refer to section 4.2 for additional assistance.
4.1. Symptoms, Causes and Possible Solutions
The following section describes some of the symptoms that may arise during an installation, as well as the possible causes and solutions.
Symptom: The Power LED does not come on
Cause: No power received by unit.
Solutions: Make sure that the power cord is connected to the Hub.
Verify that there is in fact AC at the wall plate by plugging in another
working AC-powered device.
Symptom: No video or audio image.
Causes: Open wiring path
Split or crossed twisted pairs
Solutions: Verify wiring continuity via a simple ohmmeter
Check for split twisted pairs
Check that pin configuration of Hub matches video baluns.
Symptom: Distorted video image
Causes: Reverse signal polarity
Solutions: Verify that polarity is straight through on each audio-video channel.
Verify that pin configuration of the video baluns matches the Hub.
Verify that the the twisted pairs are fully twisted up to the connection
points.
Symptom: Picture is clear but there is a loss of color.
Cause: Excessive signal loss
Solution: Check the effective length of the cable via an ohmmeter and ensure that
distance specifications have not been exceeded.
Check for possible signal losses due to poor connections.
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MuxLab Inc. Troubleshooting
If, after going through this Troubleshooting chapter, you fail to resolve your problem and
require more help, please call:
MuxLab Technical Support
(514) 905-0588 or toll free 1-877-689-5228 (North America)
Visit our web site at www.muxlab.com
4.2. Technical Support Information
When contacting your nearest MuxLab dealer or MuxLab Technical Support please
have the following information ready :
1. Baluns used. Model and part number.
2. Hub serial number.
3. Environment layout. Include audio-video source and destination equipment
used, estimated cable lengths and type of cable used (UTP, STP, 25 pair, 50 pair
or 100 pair).
4. Problem description.
5. List of tests performed.
Page 16
MuxLab Inc. Manufacturer’s Limited Warranty
5.
Manufacturer’s Limited Warranty
MUXLAB guarantees its products to be free of defects in manufacturing and workmanship for the warranty period from the date of purchase. If this product fails to give satisfactory performance during this warranty period, MUXLAB will either repair or replace
this product at no additional charge, except as set forth below. Repair and replacement
parts will be furnished on an exchange basis and will be either reconditioned or new. All
replaced parts and products become the property of MUXLAB. This limited warranty
does not include repair services for damage to the product resulting from accident, disaster, misuse, abuse or unauthorized modifications or normal decay of battery driven devices. Batteries are not covered under this warranty.
Limited warranty service can be obtained by delivering the product during the warranty
period to the authorized MUXLAB dealer from whom you purchased the product or by
sending it to MUXLAB. MUXLAB will not accept any such product for repair without a
Return Material Authorization number (RMA#) issued by its Customer Service Department and a proof of purchase date. If this product is delivered to MUXLAB by mail, you
agree to assume risk of loss or damage in transit, to prepay shipping charges to the warranty service location and to use the original shipping container or equivalent.
THE ABOVE LIMITED WARRANTY IS THE ONLY WARRANTY COVERING YOUR MUXLAB PRODUCT. THERE
ARE NO OTHER WARRANTIES
OR FITNESS FOR A PARTICULAR PURPOSE
WARRANTIES
IF THIS PRODUCT IS NOT IN GOOD WORKING ORDER, YOUR SOLE REMEDY SHALL BE REPAIR OR RE-
PLACEMENT AS PROVIDED FOR ABOVE
DAMAGE
DAMAGES ARISING OUT OF THE USE OF OR THE INABILITY TO USE THIS PRODUCT
AN AUTHORIZED
WILL
SOME STATES DO NOT ALLOW THE EXCLUSION OF OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL
DAMAGES FOR CONSUMER PRODUCTS
. THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS. YOU MAY ALSO HAVE OTHER RIGHTS
YOU
WHICH MAY VARY FROM STATE TO STATE
, SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU.
, INCLUDING ANY LOSS OF PROFITS, LOST SAVINGS OR OTHER INCIDENTAL OR CONSEQUENTIAL
MUXLAB’ DEALER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE, NOR
MUXLAB BE LIABLE FOR ANY CLAIM BY ANY OTHER THIRD PARTY.
, EXPRESSED OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY
. SOME STATES DO NOT ALLOW LIMITATIONS ON IMPLIED
. IN NO EVENT SHALL MUXLAB BE LIABLE TO YOU FOR ANY
, EVEN IF MUXLAB OR
, SO THE ABOVE LIMITATIONS OR EXCLUSIONS MAY NOT APPLY TO
.
In order to validate your warranty and obtain follow-up information and updates on the
MuxLab Product line, please fill out the Warranty Registration card enclosed and mail it
as soon as possible.
Page 17
MuxLab Inc.
Notes
MuxLab Inc.
MuxLab Inc.
5450, Côte de Liesse
Mount-Royal (Quebec)
CANADA H4P 1A5
Telephone : ..................................514-905-0588
Toll-free (North America) : ..... 1-877-689-5228
Fax : .............................................514-905-0589
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