Altinex SK2002DA User manual

DISTRIBUTION AMPLIFIERS

DISTRIBUTION AMPLIFIERS
1
TABLE OF CONTENTS
Page
PRECAUTIONS / SAFETY WARNINGS................2
GENERAL ..........................................................2
INSTALLATION..................................................2
CLEANING.........................................................2
FCC / CE NOTICE..............................................2
ABOUT YOUR DISTRIBUTION AMPLIFIER .........3
TECHNICAL SPECIFICATION ..............................3
DESCRIPTION OF SK2002DA..............................4
INPUT.................................................................4
OUTPUTS ..........................................................4
LED INDICATOR................................................5
APPLICATION DIAGRAM......................................5
INSTALLING YOUR DISTRIBUTION
AMPLIFIER............................................................6
FREQUENTLY ASKED QUESTIONS....................6
TROUBLESHOOTING GUIDE...............................7
ALTINEX POLICY..................................................7
LIMITED WARRANTY........................................7
RETURN POLICY...............................................7
CONTACT INFORMATION ................................7

DISTRIBUTION AMPLIFIERS
2
PRECAUTIONS / SAFETY WARNINGS 1
Please read this manual carefully before using your
SK2002DA Distribution Amplifier Cable. Keep this
manual handy for future reference. These safety
instructions are to ensure the long life of your
SK2002DA and to prevent fire and shock hazard.
Please read them carefully and heed all warnings.
1.1 GENERAL
•Qualified ALTINEX service personnel, or their
authorized representatives must perform all
service.
1.2 INSTALLATION
•For best results, place the SK2002DA
Distribution Amplifier Cable in a dry area away
from dust and moisture.
•Handle the SK2002DA Distribution Amplifier
Cable carefully. Dropping or jarring can damage
internal components.
1.3 CLEANING
•Clean surfaces with a dry cloth. Never use strong
detergents or solvents, such as alcohol or
thinner. Do not use a wet cloth or water to clean
the cable.
1.4 FCC / CE NOTICE
•This device complies with part 15 of the FCC
Rules. Operation is subject to the following two
conditions: (1) This device may not cause
harmful interference, and (2) this device must
accept any interference received, including
interference that may cause undesired operation.
•This equipment has been tested and found to
comply with the limits for a Class A digital device,
pursuant to Part 15 of the FCC Rules. These
limits are designed to provide reasonable
protection against harmful interference when the
equipment is operated in a commercial
environment. This equipment generates, uses,
and can radiate radio frequency energy and, if
not installed and used in accordance with the
instruction manual, may cause harmful
interference to radio communications. Operation
of this equipment in a residential area is likely to
cause harmful interference in which case the
user will be required to correct the interference at
his own expense.
•Any changes or modifications to the unit not
expressly approved by ALTINEX, Inc. could void
the user’s authority to operate the equipment.

DISTRIBUTION AMPLIFIERS
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ABOUT YOUR DISTRIBUTION AMPLIFIER 2
The SK2002DA is a high-resolution 1-in 2-out
Distribution Amplifier Cable designed to allow the
connection of a single VGA/SVGA/XGA/UXGA
source to up to two scan-rate compatible displays.
Offering a minimum video bandwidth of 400 MHz,
the SK2002DA allows very high-resolution video
signals to pass without degradation to the image
quality. The local monitor output of the SK2002DA
is pre-compensated for up to 12 feet of high-
resolution coaxial-type VGA cable. The main output
of the SK2002DA is pre-compensated for up to 250
feet with high-resolution coaxial-type VGA cable.
The SK2002DA is perfect for audio/visual
installations, where a single computer needs to be
connected to a projector (or presentation monitor)
and a local monitor simultaneously. The SK2002DA
has female 15-pin HD (VGA type) connectors on all
input and output connectors. If desired, the input
and/or output of the SK2002DA can be easily
adapted to 5 BNC connectors. The SK2002DA is
compatible with RGsB, RGBS, or RGBHV signal
types. The SK2002DA can be used with MAC, SUN
or SGI platform computer.
TECHNICAL SPECIFICATIONS 3
FEATURES/DESCRIPTION SK2002DA
GENERAL
Inputs One
Input Connector 15-pin HD Male
Outputs Two
Local Monitor Connector 15-pin HD Female
Main Output Connector 15-pin HD Female
Compatibility VGA, SVGA, XGA,
UXGA, MAC, SUN, SGI
Table 1. SK2002DA General
ELECTRICAL SK2002DA
Input Video Signal
Analog Signal Level 1.5V p-p max
Impedance 75 Ohms
Input Sync Signal
Horizontal, Vertical, & C-Sync TTL(+/-)
Sync on Green -0.3V
Impedance 10 k Ohms
Output Video Signals
Analog Signal Level Gain of 1.05 (+/-5%)
Fall/Rise Time (ns) 1.0
Impedance 75 Ohms
Output Sync Signals
Composite Sync TTL(+/-)
Sync on Green -0.3V
Impedance 22 Ohms
Frequency Compatibility
Typical Video Bandwidth 430 MHz @ -3 dB
Minimum Video Bandwidth 400 MHz @ -3 dB
Horizontal 15-200 kHz
Vertical 47-180 Hz
Cable Equalization at Main
Output 3 dB @ 120 MHz
Coupling DC
Cross-talk -40 dB @ 10 MHz
Table 2. SK2002DA Electrical

DISTRIBUTION AMPLIFIERS
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dDESCRIPTION OF SK2002DA 4
4.1 INPUT
The computer input connector of SK2002DA is
connected to the video output of a laptop or
desktop computer. If desired, the HD-15 input
can be easily adapted to 5-BNC connector
output.
Often, laptop computers will require a toggle
command, which will instruct the laptop to output
to the internal display as well as to the external
video port simultaneously. You may need to
check the user’s manual for your laptop
computer to determine this command.
PIN
No. Input signals on 15-pin HD female connector
1 Red
2Green
3Blue
4No connection
5Ground
6Ground
7Ground
8Ground
9+5V DDC
10 No connection
11 No connection
12 SDA
13 Horizontal Sync
14 Vertical Sync
15 SCL
Table 3. SK2002DA Input pin-outs
4.2 OUTPUTS
The SK2002DA has two buffered outputs with
15-pin HD female connectors. The local monitor
output is amplified output. The main output is for
the distant presentation display (large screen
monitor or LCD projector) up to 100 feet away.
The main output is pre-compensated for optimal
performance with 75 Ohms of ALTINEX super
high-resolution VGA cable.
PIN
No. Main Output signals on 15-pin HD female connector
1 Red
2Green
3Blue
4No connection
5No connection
6Ground
7Ground
8Ground
9No connection
10 Ground
11 No connection
12 No connection
13 Horizontal Sync
14 Vertical Sync
15 No connection
Table 4. SK2002DA Main Output pin-outs

DISTRIBUTION AMPLIFIERS
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PIN
No. Local Monitor Output signals on 15-pin HD female connector
1 Red
2Green
3Blue
4No connection
5Ground
6Ground
7Ground
8Ground
9No connection
10 No connection
11 No connection
12 No connection
13 Horizontal Sync
14 Vertical Sync
15 No connection
Table 5. SK2002DA Local Monitor Output pin-outs
4.3 LED INDICATOR
The SK2002DA offers a special LED located
near its output connectors, which provides
feedback to the user. When an active computer
source is connected to the SK2002DA, the LED
will turn red, indicating that it is receiving a signal
by sensing the presence of the sync portion of
the signal.
APPLICATION DIAGRAM 5

DISTRIBUTION AMPLIFIERS
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INSTALLING YOUR DISTRIBUTION
AMPLIFIER 6
Step 1. Connect the video output from the
computer to the computer input connector
on the SK2002DA.
Step 2. Verify that the LED near the output
connectors of the SK2002DA has now
turned red, indicating an active source. If
the LED is not red, the computer may not
be sending video signals (check your
Computer’s User’s Manual). If you are
using a laptop computer, you will have to
toggle (a command that instructs the
laptop to output to the internal display and
the external video port simultaneously) the
display or connect simultaneous displays.
Step 3. Connect your display device (monitor or
projector) to the main output connector.
Connect a monitor to the local monitor
output port.
Step 4. Verify that the picture quality on all
displays is good. If you are not receiving a
signal, make sure that the display is
compatible with the resolution of the
computer graphics card. Note: High levels
of static discharge under some conditions
may shutdown the unit. To reset the
SK2002DA, disconnect it and then
reconnect it again.
FREQUENTLY ASKED QUESTIONS 7
No: Question Answer
1. How many feet
of cable can I
use with the
SK2002DA?
The local monitor output is
aligned for optimal
performance up to
approximately 12 feet,
while the main output is
aligned for optimal
performance at 75 Ohms,
with capability of driving as
far as 100 feet depending
on the input and cable
quality.
2. Does the
SK2002DA
pass DDC
signals/ID bits
between the
display and
computer?
Yes, the SK2002DA does
pass DDC signals and ID
bits to a local monitor
output connector as long
as the pin-outs of the
computer are standard.
3. What are the
resolutions of
input computer
signals that
can pass
through the
SK2002DA?
1280x1024 – UXGA
1024x768 – XGA
800x600 – SVGA
640x480 – VGA.
4. What is the
difference
between main
output and
local monitor
output?
The main output is capable
of driving video signals up
to 100 feet away, while the
local monitor output is
used for displays located
less than 15 feet away.

DISTRIBUTION AMPLIFIERS
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TROUBLESHOOTING GUIDE 8
•Please make sure that the amplitude of input
video analog signal is less than 1.5V and is at
TTL level for SYNC signal.
•Please make sure that the outputs are
terminated properly and the cable run does not
exceed 15 feet for the local monitor output and
100 feet for the main output port.
•If a problem arises after continuous usage at
higher voltage, higher temperature, higher
humidity, or at other extreme environmental
conditions, please correct the problem.
ALTINEX POLICY 9
9.1 LIMITED WARRANTY
ALTINEX warrants that its products and cables
are free from defects in materials under normal
use and service. This warranty is limited to
repairing at company’s factory any part or parts
of the product, which upon company’s
examination shall disclose to be, thus defective.
Products considered defective should be
returned to company with transportation charges
pre-paid shall within 2 years (90 days for cables)
from date of shipment to the purchaser. The
warranty is expressly instead of all other
warranties expressed or implied. ALTINEX
neither assumes nor authorizes any other person
to assume for it any other liability in connection
with the sale of the products. This warranty shall
not apply to any product that shall have been
repaired or altered outside of company’s factory
in any way so as, in its judgment, to affect its
stability or reliability, or that has been subject to
misuse, negligence or accident.
9.2 RETURN POLICY
It is very important to ALTINEX that you receive
the products that you have ordered and that this
product fulfills your need. In the unlikely event,
that an ALTINEX product needs to be returned
please follow the policies below:
ALTINEX will accept product returns for a period
of 30 days from authorized ALTINEX dealers.
Products must be returned in an unopened
package.
If a product has been opened, the restocking
fees will apply. For the restocking fee amount,
please contact an ALTINEX Sales
Representative.
If the product is in your possession for more than
30 days, the restocking fees will apply.
ALTINEX will not accept any returns on cables or
custom products.
If your product is in warranty and needs service,
contact the ALTINEX Sales Department for an
RMA (Return Material Authorization). Products
returned without an RMA number may
experience a delay in service.
If your product is out of warranty and needs
service, contact the ALTINEX Sales Department
for an RMA (Return Material Authorization).
Products returned without an RMA number may
experience a delay in service. The service
charges will be quoted to you before the actual
repairs are done.
9.3 CONTACT INFORMATION
ALTINEX, Inc
Phone: [phone]
Fax: [phone]