Altinex Stereo Amplifier DA1957CT User Manual

DISTRIBUTION AMPLIFIERS  
MANUAL PART NUMBER: 400-0377-004  
DA1957CT  
1-IN, 4-OUT TWISTED PAIR  
DISTRIBUTION AMPLIFIER  
USER’S GUIDE  
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DISTRIBUTION AMPLIFIERS  
1.4 FCC NOTICE  
PRECAUTIONS / SAFETY WARNINGS  
1
·
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.  
Please read this manual carefully before using your  
DA1957CT. Keep this manual handy for future  
reference. These safety instructions are to ensure  
the long life of your DA1957CT and to prevent fire  
and shock hazards. Please read them carefully and  
heed all warnings.  
1.1 GENERAL  
·
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  
·
Qualified ALTINEX service personnel or their  
authorized representatives must perform all  
service.  
1.2 INSTALLATION  
equipment is operated in  
a
commercial  
·
Place the DA1957CT on a flat, level surface in a  
dry area away from dust and moisture.  
environment. This equipment generates, uses,  
and can radiate radio frequency energy and, if  
not installed and used in accordance with the  
instructions found herein, 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.  
·
To prevent fire or shock, do not expose this unit  
to water or moisture. Do not place the  
DA1957CT in direct sunlight, near heaters or  
heat-radiating appliances, or near any liquid.  
Exposure to direct sunlight, smoke, or steam  
can harm internal components.  
·
·
Handle the DA1957CT carefully. Dropping or  
jarring can damage internal components.  
·
Any changes or modifications to the unit not  
expressly approved by ALTINEX, Inc. could void  
the user’s authority to operate the equipment.  
To turn off the main power, be sure to remove  
the adapter from the wall. The power outlet  
socket should be installed as near to the  
equipment as possible, and should be easily  
accessible.  
·
·
Do not pull the adapter or any cable that is  
attached to the DA1957CT.  
If the DA1957CT is not used for an extended  
period, disconnect the adapter from the wall to  
avoid fire, shock, and loss of power.  
1.3 CLEANING  
·
Unplug the DA1957CT power adapter before  
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 unit.  
400-0377-004  
2
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DISTRIBUTION AMPLIFIERS  
ABOUT YOUR DA1957CT  
2
TECHNICAL SPECIFICATIONS  
FEATURES/  
3
DA1957CT  
1-In, 4-Out Twisted Pair Distribution  
Amplifier  
DA1957CT  
DESCRIPTION  
GENERAL  
Inputs  
The DA1957CT is a 1-In, 4-Out Twisted Pair  
distribution amplifier designed to connect a single  
ALTINEX Twisted Pair transmitter to as many as 4  
ALTINEX Twisted Pair receivers. The DA1957CT  
will pass computer video and audio signals from  
the transmitter over Twisted Pair-type (CAT-5)  
cable.  
Input Connector  
RJ-45 female (1)  
RJ-45 female (4)  
Outputs  
Output Connectors  
Compatibility  
ALTINEX Standard for  
Twisted Pair  
VGA through UXGA  
480p through 1080i  
Signal Types  
A typical setup allows a single computer's video  
and audio sources to be connected to as many as  
4 Twisted Pair receivers. In turn, each receiver  
connects to a video monitor, projector etc. and/or  
an audio device such as a speaker or amplifier.  
Video Signal Resolutions  
VGA:  
640x480@60Hz  
900 ft (274 m)  
Recommended Max.  
Cable Lengths  
Note: Measurements  
made using ALTINEX  
low-skew cable,  
CB3150PV.  
XGA: 1024x768@60Hz  
700 ft (213 m)  
SXGA: 1280x1024@60Hz  
650 ft (198 m)  
UXGA: 1600x1200@60Hz  
600 ft (183 m)  
ALTINEX compatible transmitters and receivers  
include the DA1930CT Video+Audio Twisted Pair  
Transmitter and the DA1931CT Video+Audio  
Twisted Pair Receiver.  
The DA1957CT is capable of equalizing the  
attenuation effects of very long cable runs  
depending upon the type and quality of cable being  
used. Additionally, there is a Signal Detect feature  
which shows when an input signal is present.  
Accessories Included  
Power Adapter  
+9 VDC, 1.1 A  
Table 1. DA1957CT General  
The latest generation of Twisted Pair devices uses  
an innovative, patented technology* developed by  
ALTINEX. The new signal processing technology  
allows transmitting and receiving fully equalized  
computer video signals, stereo, and audio signals  
over long distances.  
* US Patent 7,065,190  
400-0377-004  
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DISTRIBUTION AMPLIFIERS  
MECHANICAL  
DA1957CT  
ELECTRICAL  
DA1957CT  
Input Video Signal  
Material  
0.1” Al  
Gray  
Video/Sync/Audio Signals  
ALTINEX Standard  
Finish  
CAT-5/6 Twisted Pair  
Impedance  
Top Panel  
Lexan  
50 ohms  
Height  
1.0 in (25 mm)  
4.3 in (109 mm)  
3.0 in (76 mm)  
0.42 lb (0.19 kg)  
0.84 lb (0.38 kg)  
10°C-35°C  
Output Video Signals  
Video/Sync/Audio Signals  
ALTINEX Standard  
Width  
CAT-5/6 Twisted Pair  
Depth  
Impedance  
50 ohms  
Weight  
Power Consumption  
External Adapter: 9 VDC  
Ship Weight  
T° Operating  
T° Maximum  
Humidity  
670 mA (6.0 W)  
Table 3. DA1957CT Electrical  
50°C  
90% non-condensing  
40,000 hrs  
MTBF (calculations)  
Table 2. DA1957CT Mechanical  
400-0377-004  
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DISTRIBUTION AMPLIFIERS  
PRODUCT DESCRIPTION  
4
POWER/SIGNAL  
PRESENT LED  
TP OUTPUTS  
TP INPUT  
VIDEO  
EQUALIZATION  
POWER  
400-0377-004  
5
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DISTRIBUTION AMPLIFIERS  
APPLICATION DIAGRAMS  
DIAGRAM 1: TYPICAL SETUP  
5
DA1930CT  
DA1957CT  
DA1931CT  
DA1931CT  
DA1931CT  
DA1931CT  
400-0377-004  
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DISTRIBUTION AMPLIFIERS  
DIAGRAM 2: INTERNAL VIEW  
INPUT  
OUTPUT  
TWISTED PAIR  
RJ-45  
HW  
OUTPUT 1  
OUTPUT 2  
OUTPUT 3  
OUTPUT 4  
EQ  
TWISTED PAIR  
INPUT  
RJ-45  
POWER SUPPLY  
+9 VDC  
POWER  
SUPPLY  
SIGNAL  
DETECT  
1.1 A  
2.5mm  
400-0377-004  
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DISTRIBUTION AMPLIFIERS  
INSTALLING YOUR DA1957CT  
Step 1. Determine the best location for the  
DA1957CT. There is an equalization  
6
OPERATION  
7
The DA1957CT will operate successfully as long as  
cables are attached properly and other technical  
specifications are followed. The only adjustment on  
the DA1957CT is for video equalization and only  
needs to be made at the time of installation.  
adjustment on the DA1957CT that will  
affect all the distributed signals.  
Therefore, place the DA1957CT as  
equidistant to all receivers as possible.  
Video equalization is provided to fine-tune the  
displayed image on the remote display. The  
equalization knob is a single-turn adjustment. At  
minimum (fully CCW), the arrow points to the 7  
o'clock position and at maximum (fully CW) it  
points to the 5 o'clock position.  
Step 2. Connect the power adapter to the  
DA1957CT and plug it into the power  
outlet. The power indicator LED on the  
front panel will light red. This indicates  
that the unit is operational.  
TROUBLESHOOTING GUIDE  
8
Step 3. Connect a cable from the Twisted Pair  
transmitter to the Input connector on the  
DA1957CT. The LED should turn green  
indicating a signal is present.  
We have carefully tested the supplied DA1957CT  
unit and have found no problems; however, we  
would like to offer the following suggestions:  
Step 4. Connect 1 to 4 of the DA1957CT outputs  
to Twisted Pair receivers. The unused  
outputs (if any) do not need to be  
terminated.  
8.1 LED IS NOT RED  
The LED should be on and red when power is  
applied and there is no video signal present. If  
the LED is on and green, the unit is receiving  
power and a sync signal.  
Step 5. Connect the receiving devices (monitors,  
projectors, speaker, etc.) to Twisted Pair  
receivers per the instructions found in  
their manuals.  
Cause 1: There is no AC power.  
Solution: Verify the adapter is plugged into a  
working AC outlet, and that the  
outlet has power. Only use the  
ALTINEX-provided power adapter.  
Step 6. Adjust the equalization setting for the best  
image quality. This normally requires 2  
people; one at the transmitter and one at  
the receiver to adjust the receiver and  
view the image.  
Cause 2: The adapter is not connected.  
Solution: Verify the DC power plug coming  
from the AC adapter is plugged all  
the way into the DA1957CT.  
Cause 3: The DA1957CT has a problem.  
Solution: If there is AC power to the adapter  
and the LED still does not turn on,  
the DA1957CT or the power adapter  
may require service, call ALTINEX  
at (714) 990-2300.  
400-0377-004  
8
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DISTRIBUTION AMPLIFIERS  
8.2 LED IS NOT GREEN  
Cause 4: The receiving device is bad.  
Solution: Make sure the receiving device has  
power and is turned on. If there is  
still no sound, please call ALTINEX  
at (714) 990-2300.  
Cause 1: There is no power.  
Solution: Disconnect the video input from the  
DA1957CT and verify the LED is on  
and red indicating power is present.  
Reconnect the computer's video  
output. If the LED is still not green,  
see Cause 2.  
8.4 NO REMOTE IMAGE  
Cause 1: The source has a problem.  
Solution: Check the image on the local  
monitor and verify the quality is  
good. If the local image is good, see  
Cause 2.  
Cause 2: There is no sync signal.  
Solution 1: Verify the computer output is  
operating correctly by connecting it  
directly to a local monitor. If the  
display is good, see Solution 2.  
Cause 2: Video equalization is required.  
Solution: Adjust the Video Equalization on the  
DA1957CT. Long cable runs may  
require adjustment. In general,  
cable runs less then 50 ft (15 m)  
require little or no video equalization  
and should be set to minimum. If  
there is still no image, see Cause 3.  
Solution 2: Verify that the transmitter and  
receiver are each operating correctly  
by connecting them directly to each  
other, bypassing the DA1957CT. If  
the display is good, see Solution 3.  
Solution 3: Reconnect the DA1957CT. If the  
Power/Signal Present LED is on and  
red with a signal, call ALTINEX at  
(714) 990-2300.  
Cause 3: There is no signal.  
Solution: If the Power/Signal Present LED is  
on and green and there is still no  
8.3 NO SOUND  
image,  
call  
ALTINEX  
at  
(714) 990-2300.  
Cause 1: The source has a problem.  
8.5 REMOTE IMAGE QUALITY IS POOR  
Cause 1: The source has a problem.  
Solution: Check the source and make sure  
that there is a signal present and all  
source connections are correct. If  
the source is working and there is  
still no sound, see Cause 2.  
Solution: Check the image on a local monitor  
and verify the quality is good. If the  
local image is good, see Cause 2.  
Cause 2: The volume is too low.  
Cause 2: Video equalization is required.  
Solution: Increase the Audio Gain on the  
transmitter toward maximum. If  
there is still no sound present, see  
Cause 3.  
Solution: Adjust the Video Equalization on the  
DA1957CT. If the image is still not  
correct,  
call  
ALTINEX  
at  
(714) 990-2300.  
Cause 3: Cable connections are incorrect.  
Solution: Make sure that cables are properly  
connected. Also, make sure that the  
continuity and wiring are good. If  
there is still no sound, see Cause 4.  
400-0377-004  
9
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DISTRIBUTION AMPLIFIERS  
ALTINEX POLICIES  
9
9.1 LIMITED WARRANTY/RETURN POLICIES  
Please see the ALTINEX website at  
www.altinex.com for details on warranty and  
return policies.  
9.2 CONTACT INFORMATION  
ALTINEX, Inc.  
592 Apollo Street  
Brea, CA 92821 USA  
TEL: 714 990-2300  
TOLL FREE: 1-800-ALTINEX  
400-0377-004  
10  
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