Ltech LT-924 User manual

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

www.ltech-led.com
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.

10 Update Time: 05/01/2021_A2
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Attentions
Warranty agreement
Warranty exclusions below:
No any contract signed by LTECH.
Warranty labels and barcodes have been damaged.
Damage caused by natural disasters and force majeure.
Products with severe physical damage.
Beyond warranty periods.
Warranty periods from the date of delivery : 5 years.
Free repair or replacement services for quality problems are provided within warranty periods.
Any artificial damage caused by high voltage, overload, or improper operations.
1. Repair or replacement provided is the only remedy for customers. LTECH is not liable for
any incidental or consequential damage unless it is within the law.
2. LTECH has the right to amend or adjust the terms of this warranty, and release in written
form shall prevail.
This manual is subject to changes without further notice. Product functions depend on the goods.
Please feel free to contact our official distributors if you have any question.
Products shall be installed by qualified professionals.
LTECH products are non-waterproof (special models excepted). Please avoid the sun and rain.
When installed outdoors, please ensure it is mounted in a water proof enclosure.
Good heat dissipation will extend the working life of products. Please ensure good ventilation.
Please check if the working voltage used complies with the parameter requirements of products.
The diameter of wire used must be able to load the light fixtures you connect and ensure the
firm wiring.
Before you power on products, please make sure all the wiring is correct in case of incorrect
connection that causes damage to light fixtures.
If a fault occurs, please do not attempt to fix products by yourself. If you have any question,
please contact your suppliers.

www.ltech.cn
LT-924
8 bit / 16 bit
4种DMX接口
短路、过流、过温保护
CHANNELS 光电隔离
E500585
006

1
1、本产品为大功率多通道应用而设计，共有24个通道输出，总功率可高达 1728W。
2、使用数码管和轻触按键设置地址，操作简单快捷。
3、提供3针XLR、5针XLR、绿色端子、RJ45四种具有光电信号隔离功能的DMX接口，
提高信号传输效率和抗干扰能力，其中绿色端子还有信号放大功能。
4、
改、设备识别等操作。
具有RDM远程管理协议，通过RDM主控可对其进行参数浏览与设置、DMX地址修
6、具有短路、过温、过流自动保护与恢复功能, 并有故障警示提示功能。
8、PWM频率可选高频/低频。
9、65536 25616bit( 级)/8bit( 级)灰度级可选。
RJ45 RDM 短路保护 过流保护
光电隔离 过温保护
5、具有固件升级功能。
产品介绍
7、快速自测功能。
5针 XLR
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3针XLR

LT-924
DMX512/RDM
12- 24Vdc
3A×24路 Max. 72A
(0~36W...72W)×24路 Max. 1728W
3针XLR, 5针XLR, RJ45, 绿色端子
8bit(256级)/16bit(65536级)可选
有
短路、过温、过流保护，可自动恢复
-30°C~65°C
L300×W122×H39mm
L313×W127×H41mm
1180g
39
122
110
2
质保5年
性能参数
产品型号 :
输入信号 :
灰度等级 :
光电隔离：
输入电压 :
负载电流 :
输出功率 :
DMX接口 :
保护：
工作温度 :
产品尺寸 :
包装尺寸 :
重量(毛重 ):
产品尺寸
138
300
138
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单位: mm
E500585

006
部件图
地址
数码管
通信
指示灯
电源
指示灯
3
使用DC1供电
Max. 18A
DC2DC1 DC3 DC4
使用DC2供电
Max. 18A
3针XLR
RJ455针XLR
DMX/RDM输入及输出
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地址数码管
M
<
<
数码管不使用15秒将进入锁定状态
长按"M"键解锁
短按"M"键切换至另一数字
按" "" v” 键调整数值
^
绿色端子, 输出连接LED灯
006
拨码
开关
使用DC3供电
Max. 18A
使用DC4供电
Max. 18A
绿色端子
(具有信号放大功能)
12-24V dc
输入电压
拨码开关
灰度级
16
8
显示
调光
开
30秒后关
高平滑
标准
低
PWM Hz

连接示意图
4
1. DMX系统连接
本DMX解码器提供四种DMX端子供用户选择,
本连接图以连接3针XLR端子为例, 也可根据实际
情况选择5针XLR、RJ45或绿色端子(具有信号放
大功能)。
DMX信号 DMX信号
1
3
2
PUSH
1
3
2
PUSH
DMX主控
12-24Vdc 12-24Vdc 12-24Vdc
当信号线较长或者线材质量等原因造成信号反冲效应影响使用, 可以尝试在每路信号线末
端连接0.25W 90-120Ω终端电阻解决。
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DMX信号
LT-9 24 LT-924
终端电阻
LT-9 24

5
LT-924
LT-924
2. 连接LED灯
DMX/RDM信号
DMX/RDM信号
DMX/RDM信号
DMX/RDM信号
LED
电源
LED
电源
LED
电源
给 灯具1,2组 供电
给 组灯具1,2供电
给 灯具3,4组 供电
给 灯具3,4组 供电
给 灯具5,6组 供电
给 灯具5,6组 供电
给 灯具7,8组 供电
给 灯具7,8组 供电
LED电源
12-24Vdc
12-24Vdc
RGB LED 灯
RGB LED 灯
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
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LED
电源
R
CH
1
2
3
G
B

以上四种方式可以任意混合连接
绿色端子并联连接
RJ45并联连接
5针XLR并联连接
3针XLR并联连接
终端电阻
终端电阻
终端电阻
终端电阻
6
安装注意事项： 请在解码器与解码器之间预留通风距离 (最少20mm ，切勿堵塞通风孔，
否则会因设备散热不畅影响使用寿命。
)
LT-9 24LT-9 24
LT-9 24
LT-9 24
LT-9 24
LT-9 24
LT-9 24
LT-9 24
3 四种DMX端口的连接示意图
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安装距离不少于20mm
通风孔
LT-9 24
LT-9 24
LT-9 24
LT-9 24

7
当
。
DMX解码器过多(超过32台）,或信号线过长, 需加信号放大器或使用绿色端子接口进行
信号放大(见下图)，信号放大不能连续超过5次
终端
电阻
终端
电阻
终端
电阻
AMP
AMP
LT-9 24
LT-9 24
LT-9 24
4 AMP信号放大端子连接图
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LT-9 24
LT-9 24
LT-9 24
LT-9 24
LT-9 24
LT-9 24

8
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LED电源 LED电源
与RDM编辑器配合使用:
LT-924可以与我司RDM编辑器（型号WiFi-RDM01）配合使用，以实现手机远程浏览与
设置参数、固件升级等，连接图如下：
5-24Vdc电源输入
可用移动电源供电 WIFI-RDM01
LT-9 24 LT-924
LEDs LEDs
LED电源
…
LT-9 24
LEDs
…