4
3
6
5
www.ltech-led.com
www.ltech-led.com
www.ltech-led.com
www.ltech-led.com
Main
component
descriptions
Power
indicator
Signal
indicator
12-24Vdc
input voltage
LED lamps
connection
Digital
display
Dip
switch
Digital display
Screen
High
Smooth
Low
Standard
30S off
Enable
PWM Hz
DIM
Dip switch
16
Bit
8
RJ45
3-pin XLR
DMX/RDM
input & output
DMX/RDM
input & output
DMX
RDM
DMX
RDM
Wiring diagram
1 Connecting LED lights:
Signal
Signal
LED
driver
12-24Vdc
DMX
console
2. DMX console onnection
c
:
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-903 is equipped with 2 kinds DMX
terminals for users’ selection. The following
diagram takes 3-pin XLR as an example,
the same connecting method for Rj45.
*
*
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 Attentions :
Please reserve enough ventilation distance between decoders ( no less
than 20mm). Be sure not to block the vent, or it may affect the lifetime of decoders for poor
heat dissipation.
Installation distance > 20mm
Vent
RGB LED
RGB LED
DMX signal
LT-903
LT-903
LT-903
LT-903
1
3
2
PUSH
1
3
2
PUSH
GND
DATA+
DATA-
LT-903
LT-903
LT-903
LT-903
LT-903
LT-903
Update Time: 31/08/2020_A2
V+
1
2
3
Digital display will enter the locked mode
without operating after 15 seconds.
Long press “M” key to unlock.
Short press “M” key to switch numbers.
Press “ ””v” key to adjust value.
^
M
<
<
8 8 8
This manual is subject to changes without further notice.
Product feel free to contact our official distributors if you have any question.
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