User`s guide
DISTRIBUTION AMPLIFIERS
8
FREQUENTLY ASKED QUESTIONS 9
No: Question Answer
1 When using
a loop
output as
output 3?
How far can
I run the
signal?
In some cases there may be
a need for longer cables, but
lengths over 12 ft are
generally not recommended.
2 Are outputs
1 & 2?
Yes, the DA1906SX has
three Individually buffered
outputs.
2 Is input
cable type
important
when I use
the
DA1906SX?
The DA1906SX may be used
with two types of input cables
– VGA Y-type cables and
straight VGA Male to Male
cables. Altinex recommends
straight input VGA cable.
3 May I use
cat 5 cable
instead of
coaxial
cable?
You can not use cat 5 cable
instead of coaxial cable,
because the quality of
received signal will be lost.
Since there is no isolation on
each wire, the signals will
interfere with each other.
4 May I use
the
DA1906SX
power
supply to
power 2
units at the
same time?
It is not recommended, since
one power supply is supplied
with each unit. Please
consider the PS5581SM, a
rack mount power supply.
5 Does the
DA1906SX
pass DDC
signals
between the
display and
computer?
Yes, the DA1906SX does
pass DDC signals to a video
output connector as long as
the pin-outs of the computer
are standard per VGA.
6 What are
resolutions
of input
computer
signals that
can pass
1280x1024 – UXGA
1024x768 – XGA
800x600 – SVGA
640x480 – VGA.
through the
DA1906SX?
3 If I’m not
using Loop
Output, do I
have to do
anything?
No, you can leave loop output
unterminated.
TROUBLESHOOTING GUIDE 10
• Please make sure that input amplitude of the
video analog signal is less than 1.5V and is at
TTL level for SYNC signal.
• Please use only an Altinex supplied external AC
adapter supplying 9V DC at 500mA to power up
DA1906SX.
• Please make sure that proper quality of cables
is used. We recommend Altinex made cables for
best results, where video signals are pass
through loop components.
• Please make sure that the outputs are
terminated properly and cable runs do not
exceed 15 feet for the loop output port & 100
feet for any of the main output ports.
• If the problem shows up after continuous usage
at higher voltage, higher temperature, higher
humidity, or at other extreme environmental
conditions, please correct the problem.