Ltech LT-924 User manual

LT-924
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Short circuit/ Over current/ Overheat protection
8 bit / 16 bit
4 kinds of DMX interfaces Photoelectric
isolation
E500585
006
CHANNELS

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1
Product introduction
2. Easy operation with digital display and the touch buttons.
1. Designed for Hi-power multiple channels application, 24 channels output, and
up to 1728W output power.
3. 3-pin XLR, 5-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.
7. With fast self-testing function.
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,
5.
when a fault occurs.
With short circuit / overheat / over current protection, as well as warning function
9. 16bit (65536 levels) / 8bit (256 levels) grey level available.
8. High/low frequency PWM available.
6. With firmware upgrade function.
3-pin XLR Photoelectric
isolation
Short circuit
protection
5-pin XLR RJ45 RDM Over current
protection
Overheat
protection

2
LT-924
DMX512/RDM
12~24Vdc
3A × 24CH Max. 72A
(0~36W...72W) × 24CH Max. 1728W
3-pin XLR, 5-pin XLR, RJ45, Green terminal
8bit (256 levels) / 16bit (65536 levels)
Yes
Short circuit / Overheat / Over current protection,
recover automatically.
-30°C~65°C
300×122×39mm(L×W×H)
313×127×41mm(L×W×H)
1180g
39
122
110
5-Year
Warranty
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Technical specs
Model :
Input signal :
Input voltage :
Current load :
Output power :
DMX interfaces :
Grey level :
:
Protection :
Working temperature :
Dimensions :
Package size :
Weight (G.W.) :
Photoelectric isolation
Product size
138
300
138
Unit: mm
E500585

006
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3
Main component description
Powered by DC1
Max. 18A
Powered by DC2
Max. 18A
DC2DC1 DC3 DC4
Digital
display
Power
indicator
Signal
indicator
3-pin XLR RJ455-pin XLR
DMX/RDM input & output
Green terminals
LED lamp connection
Digital display
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
Powered by DC3
Max. 18A
Powered by DC4
Max. 18A
Dip
switch
Dip switch
12-24V dc
Power input
Green terminals
(with signal amplifier function)
Screen
High Smooth
Low Std
30S off
Enable
PWM Hz DIM
16
Bit
8

4
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Wiring diagram
DMX console
DMX signal DMX signal
Resistor
terminal
LT-924 is equipped with 4 kinds of DMX terminals for
users’ selection. The following diagram takes 3-pin
XLR as an example, same connecting method for the
rest three: RJ45 & 5-pin XLR & green terminal (with
amplifier function).
*
connect 0.25W 90-120Ω terminal resistor at the end of each line.
If the recoil effect occurs because of longer signal line or bad line quality, please try to
1
3
2
PUSH
1
3
2
PUSH
12-24Vdc 12-24Vdc 12-24Vdc
LT-924 LT-924 LT-924
DMX signal
1. DMX console onnectionc :

5
LT-924
LT-924
DMX/RDM signalDMX/RDM signal
DMX/RDM signal DMX/RDM signal
2345678
LED driver
LED
driver
LED
driver
2345678
RGB LEDs
RGB LEDs
RGB LEDs
2. Connecting LED lights:
1
Power to LEDs1, 2
Power to 1, 2LEDs
Power to 3, 4LEDs
Power to 3, 4LEDs
Power to 5, 6LEDs
Power to 5, 6LEDs
Power to 7, 8LEDs
Power to 7, 8LEDs
LED
driver
LED
driver
12-24Vdc
1
R
CH
1
2
3
G
B
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LT-924LT-924
LT-924
LT-924
LT-924
6
3. The connection diagram of 4 kinds of DMX/RDM terminals:
5-pin XLR connected in parallel
3-pin XLR connected in parallel
Green terminal connected in parallel
Rj45 connected in parallel
These 4 terminals can be connected in a mixed way.
Resistor
terminal
Resistor
terminal
Resistor
terminal
Resistor
terminal
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-924
LT-924
LT-924
LT-924
Installation distance > 20mm
Vent
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LT-924
LT-924
LT-924
*

7
4. The connection diagram of :AMP signal amplifier terminal
AMP
AMP
Connecting with green terminal or an extra amplifier will be needed when more than 32
decoders are connected or use overlong signal line (as shown below).
Signal amplifier should not be more than 5 times continuously.
Resistor
terminal
Resistor
terminal
Resistor
terminal
LT-924
LT-924
LT-924
LT-924
LT-924
LT-924
*
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LT-924
LT-924
LT-924

LT-924 LT-924
LEDs LEDs
WIFI-RDM01
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Work with RDM editor
LT-924 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:
5-24Vdc power input
Support portable
power supplies
LED driver LED driver
LT-924
LEDs
…
…
8
LED driver

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.
Supporting WiFi-RDM01 upgrade
and DMX driver upgrade.
WiFi-RDM01
upgrade
DMX device
upgrade
Download the App, setting LT-924 parameters (dimming range, brightness, boot fade time etc.)
after well connecting the RDM editor, more details, please check the manual of WiFi-RDM01.