Ltech LT-905 User manual

www.ltech-led.com
LT-905
8 bit / 16 bit
2 kinds of DMX interfaces
OTP/OCP/SCP protection
Photoelectric
Isolation
006
CHANNELS

1
Product Introduction
www.ltech-led.com
7. With power-on state management and fast self-testing function.
9. 16bit (65536 levels) / 8bit (256 levels) grey level for option.
8. High/low frequency PWM for option.
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.
2. Easy operation with digital display and touch buttons.
1. Designed with 5 channels output, and Max. 5A current per channel, up to 600W output
power.
5. With firmware upgrade function.
6.
when fault.
With short circuit / over-heat / over current protection, as well as warning function
3. 3-pin XLR, RJ45 DMX interface with photoelectric isolation, improve signal
transmission efficiency and anti-interference ability.
Short circuit
Protection
RDM Over current
Protection
RJ45 Photoelectric
isolation
Over-heat
protection
E500585
warranty
5 years
3-pin XLR

Technical Specs
LT-905
DMX512/RDM
3-pin XLR, RJ45
~
×
× 5CH Max. 600W
12 24Vdc
5A 5CH Max. 25A
(0~60W...120W)
8bit (256 levels) / 16bit (65536 levels)
2
Photoelectric Isolation:
Protection:
Working Temp.:
:
:
:
Dimensions
Package Size
Weight (G.W.)
110
86
122
110
www.ltech-led.com
Model
Input Signal
Input Voltage
Current Load
:
:
DMX Interface:
:
:
:
Output Power:
Grey Level
Unit: mm
Yes
Short circuit / Over-heat / Over current protection,
recover automatically.
°C °C -30 ~65
L122×W110×H37mm
L127×W123×H41mm
550g
37

www.ltech-led.com
3
Main Component Description
RJ45
3-pin XLR
DMX/RDM
input & output
DMX/RDM
input & output
Power
indicator
Signal
indicator
12-24Vdc
Power input
Green terminals
LED lamps connection
Digital display
Digital
display
Hig Smooth
Low Std
PWM Hz DIM
Digital display will enter the locked
mode without operating after 15S.
Dip
switch
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.
^
006
006
Screen
30S off
Enable

DMX
RDM
DMX
RDM
DMX
RDM
DMX
RDM
LT-905 LT-905
Wiring Diagram
1 Connecting LED lights:
Signal Signal Signal Signal
LED
driver LED
driver LED driver
12-24Vdc 12-24Vdc
www.ltech-led.com
4
RGBWY LED RGBWY LED
RGBWY LED
V+
V+
1
2
3
4
5

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-905 is equipped with 2 types DMX
terminals for users’ selection. The following
diagram takes 3-pin XLR as an example,
the same connecting method for RJ45.
1
3
2
PUSH
1
3
2
PUSH
GND
DATA+
DATA-
LT-9 05 LT-905 LT-9 05
www.ltech-led.com
5
DMX signal
*
*

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:
LT-9 05
LT-9 05
LT-9 05
LT-9 05
LT-9 05
LT-9 05
www.ltech-led.com
6
*Installation Attention : Please reserve enough ventilation distance between decoders (>20mm),
Be sure not to block the vent, or it will affect lifetime of the decoder for . poor heat dissipation
Installation distance > 20mm
Vent

www.ltech-led.com
7
WIFI-RDM01
LT-9 05LT-9 05LT-9 05 LT-905
…
…
LEDLEDLED LED
Work with RDM Editor
LT-905 can work with LTECH RDM editor (Model: WiFi-RDM01) to realize changing the parameters
by long-range setting, wiring diagram as below:
5-24Vdc power input
Power bank
available
supply is
LED driver LED driver LED driver LED driver

www.ltech-led.com
8
RDM Editor App Interface Instructions
ac
b
d
a: click”Add”, edite 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, set LT-905 parameters (dimming range, brightness, boot fade time etc.) after
well connecting the RDM editor, More details, please check the manual of WiFi-RDM01.
Well install products first, then work with WiFi -RDM01 to realize parameters setting and
firmware upgrade by App.
Update time: 2020.08.03_A2
This manual is subject to changes without further notice.
Product functions depends on the goods.
Please feel free to contact our official distributors if you have any question.

www.ltech.cn
LT-905
8 bit / 16 bit
2种DMX接口
短路、过温、过流保护
CHANNELS 光电隔离
006