Black Box Electronic Accessory AC504A User Manual

Mini-CAT5 Video-over-CAT5 Extension  
Model AC504A  
VGA Extension  
Model AC504A-CP  
Component Video (RGB or Y Cb Cr) Extension  
February 15, 2006  
Order toll-free in the U.S. 24 hours, 7 A.M. Monday to midnight Friday:  
877-877-BBOX  
FREE technical support, 24 hours a day, 7 days a week:  
Call 724-746-5500 or fax 724-746-0746  
CUSTOMER  
SUPPORT  
INFORMATION  
Mail order: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055  
UMA1031 Rev. n/c  
 
VGA & Component Video-over-CAT5 Extension  
TRADEMARKS USED IN THIS MANUAL  
Black Box, and  
(logo) are trademarks of Black Box Corporation.  
IBM is a registered trademark of International Business Machines  
Corporation. Any other trademarks mentioned in this manual are  
acknowledged to be the property of the trademark owners.  
FEDERAL COMMUNICATIONS COMMISSION  
RADIO FREQUENCY INTERFERENCE STATEMENT  
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 designed 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 intended  
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 or her 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 the Canadian Department of Communications.  
EUROPEAN UNION DECLARATION OF CONFORMITY  
This product complies with the requirements of the European EMC  
directive 89/336/EEC  
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Model AC504A & AC504A-CP  
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.  
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VGA & Component Video-over-CAT5 Extension  
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.  
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.  
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Model AC504A & AC504A-CP  
Contents  
1. Introduction ............................................................................page 5  
1.1 Model AC504A for VGA .....................................................page 5  
1.2 Model AC504A-CP for Component Video (RGB or Y Cb Cr) ..page 5  
1.3 Features ..................................................................................page 6  
2. Installation................................................................................page 6  
3. Configuration and Operation.................................................page 8  
4. Troubleshooting.......................................................................page 9  
Contacting Black Box ..............................................................page 10  
Shipping & Packaging .............................................................page 10  
5. Specifications..........................................................................page 11  
4
 
VGA & Component Video-over-CAT5 Extension  
1. Introduction  
1.1 Model AC504A … for VGA  
The Model AC504A is a UTP (CAT5) VGA video extender consisting  
of a transmitter (AC504A-S) and a receiver (AC504A-R) sold together  
as a pair. The transmitter converts a PC's VGA signal into a format that  
can be transmitted using a single inexpensive and commonly available  
Category-5 Unshielded Twisted Pair (UTP) cable with RJ45  
connectors, which is used in most Local Area Networks.  
At the receiving (remote) end the Cat5 signal is converted back to  
VGA for connection to your monitor, projector or other display device.  
The transmitter and receiver are each housed in a small plastic  
enclosure and include a HD15 video connector and a RJ45 connector  
for the Cat-5 cable. Included with the pair of devices are: one small  
universal power supply (can be powered at either end), and a short  
adapter cable for easy connection to the standard HD-15 connector of  
the PC.  
The Mini-CAT5 Extender can drive CAT5 LAN cables to 500 feet  
(150 meters) with excellent video quality.  
1.2 Model AC504A-CP … for Component Video (RGB or  
YPbPr or YCbCr)  
This variation of the AC504A includes cables for each end that allow  
connection of the transmitter to the 3 RCA connectors of DVD-players  
or other video sources that output Component Video (RGB or Y Pb Pr,  
or Y Cb Cr). A similar cable is also provided for the receiver for  
connection to compatible displays such as HDTV’s or high-end  
monitors. The actual sender and receiver units are identical to the  
standard AC504A and, in fact, you can use the pair to send VGA video  
if you substitute VGA cables.  
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Model AC504A & AC504A-CP  
1.3 Features  
Eliminates the need for bulky , expensive and hard to build  
multi-coaxial cables for high-resolution video extension  
Amplifies the signal for clean and crisp transmission  
Differential signaling eliminates ground loops and noise  
Handles resolutions up to 1600x1200 at any refresh rate  
Rugged, Reliable, Compact size  
Only one end requires power in most applications. Power  
supply can be connected at the sending or the receiving end,  
whichever convenient.  
Drive standard CAT5 cables to 500 feet (for VGA and  
Component video versions) or to 1200 feet for (Composite  
Video and Stereo Audio version)  
Perfect for Remote Monitoring, Video Staging, Conference  
Rooms, Classrooms, Home-Theatre Applications and more  
2. Installation  
1. Connect the VGA in (HD-15) connector of the AC504A  
Transmitter to the computer's or other equipment’s video output  
port using the supplied cable (see figure 2.1).  
CAT-5  
Receiver  
Sender  
VGA  
VGA  
Remote Monitor  
Figure 2.1  
2. Connect the included power adapter to the power connector on  
either of the transmitter or the receiver (for more information,  
please see the recommendations immediately following this  
paragraph). Be sure to insert the power connector fully. Check the  
red light next to the RJ45 connector to verify unit’s power. When  
the two units are connected Via CAT5 cable, the LED’s at both  
ends should be lit.  
6
 
VGA & Component Video-over-CAT5 Extension  
Recommended Power Supply Connection  
Cat 5 cable length of 0 to 150 feet:  
It does not matter in which end you plug the power supply. Use  
whichever end that is most convenient for your setup.  
Cat 5 cable length of 150 to 300 feet:  
We recommend that you plug the power supply a the receiving  
end.  
Cat 5 cable length of 300 to 500 feet:  
Please plug the power supply at the receiving end, however,  
depending the grounding of the video source (PC) and the display  
device at the remote end, you may need to purchase an additional  
power supply to power up both ends.  
Cat 5 cable lengths over 500 feet:  
Purchase of an additional power supply to power up both ends is  
almost certainly needed.  
3. Using Category-5 cable connect the AC504A-Receiver to the  
transmitter’s RJ45 output. Connect the remote monitor to the  
receiver either directly (VGA) or using the HD15 to 3 RCA cable  
(Component Video).  
IMPORTANT  
Do not connect this unit to any LAN device such as network cards or hubs  
as this may cause damage. Use EIA/TIA 568B standard straight-through  
patch wiring as shown below. Do not use crossover cables.  
EIA/TIA 568B WIRING STANDARD  
PIN  
Wire Color  
White w/ Orange Stripe  
Orange  
1
2
3
White w/Green Stripe  
Blue  
4
5
White w/Blue Stripe  
Green  
6
7
White w/Brown Stripe  
Brown  
8
7
 
Model AC504A & AC504A-CP  
3. Configuration & Operation  
The Mini-CAT5 Receivers are equipped with an adjustment to improve  
image quality when using long cables. The adjustment is made via a  
single turn trim-pot located next to the power connector on the side.  
When using a long cable, with no  
compensation, any solid horizontal line,  
tends to smear to the right. For example  
in the image shown on the right, observe  
the dark black line at the bottom of the  
window and see how it is smearing to  
the right (not changing to white abruptly  
No-Compensation  
as it should). This is the effect of long  
cable on the signal.  
You can turn the trim-pot to eliminate  
these streaks as shown on the 2nd  
picture. If you add too much  
compensation to the signal, then an  
opposite effect may be observed, i.e.  
black lines smear to the right as white  
Perfect Compensation  
lines or vice-versa. The 3rd picture  
shows the case where too much  
compensation is added.  
When using long cables, the image  
quality is a function of resolution and  
refresh rate. Lower resolution or refresh  
rate, result in best picture. Therefore it is  
best to set the refresh rate to 60 Hz at  
any resolution.  
Too much Compensation  
Figure 3.1  
Although the Mini-CAT5 extenders are compatible with all varieties of  
UTP cable, for best results at long distances, use standard Category-5  
Cable (instead of CAT5e or CAT6).  
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VGA & Component Video-over-CAT5 Extension  
4. Troubleshooting  
1. Fuzzy, blurry, or ghosting image at remote location  
If you have a stable image but it looks somewhat blurry (object or  
character edges are not sharp), try to adjust the compensation first.  
When the trim-pot is turned fully CCW there is no compensation. As  
you turn the pot clockwise you are applying compensation. Look at the  
screen and slowly turn the pot clockwise. Notice what happens to the  
right of solid horizontal lines (as in figure 3.1). If you still have a fuzzy  
image, try reducing first the refresh rate and then the resolution of the  
PC.  
2. Shaking image or periodically blanking monitor  
CAT5 cable employs twisted pairs to differentially transmit the signals  
from the transmitter to the receiver in order to reduce the amount of  
EMI (interference) coupled noise from external sources. However, a  
strong electromagnetic noise field can cause instability in the signal.  
Usual sources of this form of noise coupling are high current AC lines  
or other high-density data and/or control cables that run adjacent to and  
parallel with a substantial length of the CAT5 cable.  
To eliminate this, either separate the Cat 5 cable of Mini-CAT5  
Extender from the interfering source or use shielded CAT5 cables.  
Note that separating the CAT5 cable from the EMI source by a few  
inches is often sufficient to eliminate this problem.  
3. The PC does not recognize a Plug-and-Play monitor  
If the PC’s Operating System is setup to detect a plug-and-play monitor  
(usually in Display Properties Advanced Settings), it may have trouble  
finding a monitor. If the PC does not produce an image due to this,  
disable the plug-and-play monitor detection in the PC’s operating  
system Display Properties.  
4. Substituting power supplies  
The sender and receiver rely on the power adapter that is supplied with  
them. Do not substitute any other power supply or DC power source  
9
 
Model AC504A & AC504A-CP  
Contacting Black Box  
If you determine that your extender is malfunctioning, do not attempt  
to repair the unit. Contact Black Box Tech. Support at 724-746-5500.  
Before you do, make a record of the history of the problem. We will be  
able to provide more efficient and accurate assistance if you have a  
complete description.  
Shipping and Packaging  
If you need to transport or ship your extender:  
• Package it carefully. We recommend that you use the original  
container.  
• Before you ship the units back to Black Box Corporation for  
repair or return, contact us to get a Return Authorization (RA)  
number.  
10  
 
VGA & Component Video-over-CAT5 Extension  
5. Specifications  
Video Types Model AC504A:  
VGA through UXGA  
Model AC504A-CP: RGB , YPbPr , or YCbCr  
Up to 1600 x 1200 at up to 85 Hz  
DC to 250 MHz  
Resolution  
Bandwidth  
Max. Distance Up to 500 ft. (150 m)  
Connectors  
Interfaces  
HD15 female for video in and out; Shielded RJ45  
Standard Analog VGA; Proprietary CAT5  
Compliance CE; FCC Part 15 Subpart B Class A, IC Class  
Max. Altitude 10,000 ft. (3048 m)  
Temperature Operating: 32 to 122°F (0 to 50°C);  
Storage: –40 to +185°F (–40 to +85°C)  
Humidity  
Enclosure  
MTBF  
Up to 95% non-condensing  
Plastic ABS-94VO, UL File#56070  
90,000 hours (calculated estimate)  
Power  
From utility-power (mains) outlet, through included  
external power adapter. Output Voltage: 9v DC  
regulated Center-Positive. Power :(5 watts Max)  
Size  
Transmitter & Receiver 0.8” H x 1.7” W x 4.5” L  
Weight  
2 lbs. (shipping)  
11  
 
Model AC504A & AC504A-CP  
12  
 
 
© Copyright 2006. Black Box Corporation..  
All rights reserved.  
1000 Park Drive  
Lawrence, PA 15055-1018  
724-746-5500  
Fax 724-746-0746  
 

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