Ltech LT-912 User manual

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LT-912
8 bit / 16 bit
3 kinds of DMX interfaces
Short circuit / Over current / Overheat protection
Photoelectric
isolation
006
12
CHANNELS

1
Product introduction
4. With the operations can be completed via the
RDM master console, such as parameters browsing & settings, DMX address
settings, equipment recognition, etc.
RDM remote management protocol,
2. Easy operation with digital display and the touch buttons.
1. Designed for Hi-power multiple channels application, 12 channels output, and up to
1152W output power.
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9. 16bit (65536 levels) / 8bit (256 levels) grey level available.
8. High/low frequency PWM available.
Short circuit
protection
RDM Over current
protection
RJ45
3-pin XLR Photoelectric
isolation
Overheat
protection
3. 3-pin XLR, RJ45 and green terminal DMX interface with photoelectric isolation,
improve signal transmission efficiency and anti-interference ability, the green
terminal also has signal amplifier function.
5. With firmware upgrade function.
6.
when a fault occurs.
With short circuit / overheat / over current protection, as well as warning function
7. With power-on state management and fast self-testing function.

2
LT-912
DMX512/RDM
3-pin XLR, RJ45, green terminal
12~24Vdc
4A × 12CH Max. 48A
(0~48W...96W) × 12CH Max. 1152W
8bit (256 levels) / 16bit (65536 levels)
Yes
Short circuit / Overheat / Over current protection,
recover automatically.
-30°C~65°C
180×122×39mm(L×W×H)
193×127×41mm(L×W×H)
730g
122
110
39
5-Year
Warranty
Technical specs
Model :
Input signal :
DMX interfaces :
Input voltage :
Current load :
Output power :
Grey level :
:
Protection :
Working temperature :
Dimensions :
Package size :
Weight (G.W.) :
Photoelectric isolation
180
156
Unit: mm
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E500585
Product size

006
3
Main component description
Power
indicator
Signal
indicator
RJ45
3-pin XLR
12-24V
input voltage
dc
DMX/RDM input & output
Green terminals
LED lamps connection
DC1 DC2
Powered by DC1
Max. 24A
Digital
display
Digital display
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M
<
<
Digital display will enter the locked
mode without operating after 15S.
Long press “M” key to unlock.
Short press “M” key to switch numbers.
Press “ ””v” key to adjust value.
^
006
006
Green terminals
(with signal amplifier function)
Powered by DC2
Max. 24A
Dip
switch
DIP switch
Screen
High Smooth
Low Std
30S off
Enable
PWM Hz DIM
16
Bit
8

4
DMX
console
1. DMX console onnectionc :
DMX signal
LT-912 is equipped with 3 types DMX terminals for users’
selection. The following diagram takes 3-pin XLR as an
example, same connecting method for the rest two: RJ45
& green terminal (with amplifier function).
DMX signal
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.
12-24Vdc 12-24Vdc
1
3
2
PUSH
1
3
2
PUSH
Wiring diagram
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LT-912 LT-912 LT-912
DMX signal
12-24Vdc
Resistor
terminal

LT-912
LT-912
5
RGB LEDs
RGB LEDs
RGB LEDs
DMX/RDM signal
DMX/RDM signal
DMX/RDM signal
DMX/RDM signal
LED
driver
Power to
LEDS3, 4
Power to
LEDS3, 4
1
1
2
2
3
3
4
4
2 Connecting LED lights:
LED driver
LED
driver
Power to
LEDS1, 2
12-24Vdc
12-24Vdc
Power to
LEDS1, 2
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R
CH
1
2
3
G
B

LT-912LT-912
LT-912LT-912
LT-912LT-912
6
3. The connection diagram of 3 kinds of DMX/RDM terminals:
3-pin XLR connected in parallel
Green terminal connected in parallel
Rj45 connected in parallel
These 3 terminals can be connected in a mixed way.
Resistor
terminal
Resistor
terminal
Resistor
terminal
Installation distance > 20mm
Installation attentions : please reserve enough ventilation distance between decoders (>20mm),
be sure not to block the vent, or it will affect lifetime of decoder for .poor heat dissipation
LT-912
LT-912
LT-912
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Vent
*

LT-912LT-912
LT-912LT-912
LT-912
7
Resistor
terminal
Resistor
terminal
Resistor
terminal
4. The connection diagram of :AMP signal amplifier terminal
AMP
AMP
LT-912
Connecting with green terminal or an extra amplifier will be needed when more than 32
decoders are connected or use overlong signal wire(as shown below).
Signal amplifier should not be more than 5 times continuously.
LT-912
LT-912
LT-912
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*

8
WIFI-RDM01
LT-912 LT-912
LED
12-24Vdc 12-24Vdc
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5-24Vdc power input
LED
driver LED driver
LED
driver LED driver
Work with RDM editor
LT-912 can work with LTECH RDM editor (Model: WiFi-RDM01) to realize changing the parameters
and firmware upgrade by long-range setting, wiring diagram as below:
Support portable
power supplies
…
…
LT-912
LED LED
12-24Vdc
LED
driver LED driver
Defaults

9
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ac
b
d
RDM editor App interface instructions
Well installation of products first, then working with WiFi -RDM01 to realize setting parameters
and firmware upgrade by App.
a: Click”Add”, edit the address in corresponding box.
b: Click”ID”, get more product details.
c: Click” ”, enter edited interface.
d: Click”No.”, issue the recognizing command.
WiFi-RDM01
upgrade
DMX device
upgrade
Download the App, setting LT-912 parameters (dimming range, brightness, boot fade time etc.)
after well connecting the RDM editor, more details, please check the manual of WiFi-RDM01.
Defaults
Supporting WiFi-RDM01 upgrade
and DMX driver upgrade.