Ltech LT-904 User manual

1
LT-904
8 bit / 16 bit
CHANNELS Short circuit / Over current protection
2 kinds of DMX interfaces
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6. With fast self-testing function.
8. 16bit (65536 levels) / 8bit (256 levels) grey level optional.
7. High/low frequency PWM for optional
5. With short circuit protection and over current protection, as well as warning function
when fault.
2. Easy operation with digital display and the touch buttons.
1. Designed with 4 channels output, and Max. 6A current per channel, up to 576W output
power.
3. Support 2 kinds of DMX ports: 3-pin XLR, RJ45.
Short circuit
Protection
RDM Over current
Protection
RJ45
3-pin XLR
warranty
5 years
Product Introduction:
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4. With RDM remote management protocol, the operations can be completed via the
RDM master console, such as parameters browsing & setting, DMX address setting,
equipment recognition, etc.
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2
Technical Specs:
Product Size:
Unit: mm
LT-904
DMX512/RDM
3-pin XLR, RJ45
~
×
×4CH
Max. 576W
12 24Vdc
6A 4CH Max. 24A
(0~72W...144W)
8bit (256 levels) / 16bit (65536 levels)
Protection:
Working Temp.:
:
:
:
Dimensions
Package Size
Weight (G.W.)
Model
Input Signal
Input Voltage
Current Load
:
:
DMX Interface:
:
:
:
Output Power:
Grey Level
Short circuit / Over current
-30℃~65℃
L122×W110×H37mm
L127×W123×H41mm
550g
110
86 37
122
110
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3
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Main Component Description:
Power
indicator
Signal
indicator
12-24Vdc
Power input
LED lamps
connection
Digital
display
Dip
switch
Digital display
Screen
Hig Smooth
Low Std
30S off
Enable
PWM Hz DIM
Digital display will enter the locked mode
without operating after 15 seconds.
Dip switch
16
Bit
8
M
<
<
Long press “M” key to unlock.
Short press “M” key to switch numbers.
Press “ ””v” key to adjust value.
^
RJ45
3-pin XLR
DMX/RDM
input & output
DMX/RDM
input & output
8 8 8
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4 5
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DMX
RDM
DMX
RDM
Wiring Diagram:
1 Connecting LED lights:
Signal Signal
LED
Power Supply
12-24Vdc
DMX
console
2. DMX console onnectionc :
DMX signal DMX signal
12-24Vdc 12-24Vdc 12-24Vdc
Resistor
terminal
An amplifier is needed if more than 32 decoders are connected ,
signal amplification should not be more than 5 times continuously.
or use overlong signal line
If the recoil effect occurs because of longer signal line or bad line quality, please try to
connect 0.25W 90-120Ω terminal resistor at the end of each line.
LT-904 is equipped with 2 types DMX
terminals for users’ selection. The following
diagram takes 3-pin XLR as an example,
same connecting method for RJ45.
*
*
RGBW LED
RGBW LED
DMX signal
LT-904
LT-9 04 LT-904 LT-9 04
1
3
2
PUSH
1
3
2
PUSH
GND
DATA+
DATA-
V+
1
2
3
4

6
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These 2 terminals can be connected in a mixed way.
RJ45 Connected in Parallel
3-pin XLR Connected in Parallel
Terminal
Resistor
Terminal
Resistor
3. The connection diagram of 2 kinds of DMX/RDM terminals:
*
Installation Attention : please reserve enough ventilation distance between decoders (>20mm),
be sure not to block the vent, or will affect lifetime of decoder for .poor heat dissipation
Installation distance > 20mm
Vent
LT-9 04 LT-904 LT-9 04
LT-9 04 LT-904 LT-9 04
Update Time: 2018.08.20_A0