Ltech WP-803H User manual

WP-803H
DMX/RDM CV Decoder
WP-803H
Output Power: (83-288)W/CH Max. 864W(3CH) Weight(N.W.): 670g
DMX512, RDMInput Signal: Working Temp.: -20°C~50°C
WP-803H uses the RDM protocol and supports DMX512/RDM signal bi-directional communication. The RDM pro-
tocol enables the remote management such as reading/ writing DMX address (the DMX master must be RDM
compliant). WP-803H has 3 channel output with max. 1.2A output for each channel. It can be used to control
DIM, CT, RGB constant voltage lights and achieve 0-100% dimming or various lighting effects. WP-803H can be
operated in DMX mode or in customized mode.
WP-803H DMX/RDM CV Decoder
Product Parameters
1
Dimming Range: 0-100% Short circuit, over temperature, over
current protection, auto recovery.
Protection:
Input Voltage: L164×W70×H36mm
Dimensions(L×W×H):
100-240V~
Output Current: Package Size(L×W×H): L230×W95×H47mm
Max. 1.2A/CH Max. 3.6A(3CH)
It is easy to set address via digital display and buttons. WP-803H is a waterproof decoder with IP67 rating, sui-
table for outdoor and damp environments.

Product Size
2
164mm
70mm
146mm
36mm
Main Component Description
Digital display
DMX/RDM signal input
LED lamp connection
100-240V~ power input
WP-803H DMX/RDM CV Decoder
DMX/RDM signal output
MODE SETUP
Digital display:
Access Configuration: Long press the MODE button for more than 2s.
Back to Start Page: Long press the MODE button for 2s again or after
15 seconds of inactivity.
Save Configuration: Long press the SETUP button for more than 2s.
Adjust Value: Short press or button.
Reset It to Factory Defaults: Long press MODE, , button simul-
taneously for 2s.

OLED display interface
3
DMX mode
Short press the MODE button and button simultaneously. When
the screen displays "L-1", it enters the DMX mode. Long press Mode
button for 2s to enter the menu. After parameter settings are com-
pleted, Long press the SETUP button for more than 2s to save the
configuration.
Interface of DMX mode
1. DMX address setting Press or button to set the DMX address.
DMX address range: 1~512
WP-803H DMX/RDM CV Decoder
2. Resolution Short press MODE button to switch the menu to "r".
Press or button to select resolution and the third value on the
screen will display 1 or 2.
Options: / r-2 (16bit) r-1 (8bit)
3. PWM frequency Short press MODE button to switch the menu to "F".
Press or button to select PWM frequency and the third value on the
screen will display H or L.
Options: / F-L (300Hz) F-H (3600Hz)

4. Dimming mode Short press MODE button to switch the menu to "d".
Press or button to select the dimming mode and the third value on
the screen will display 1 or 2.
Options: / d-2 (Standard dimming) d-1 (Smooth dimming)
5. DMX channels Short press MODE button to switch the menu to "C".
Press or button to select the channels and the third value on the
screen will display 1, 2 or 3.
Options:
C-3 (3 channel output occupies corresponding 3 DMX addresses)
C-1 (3 channel output occupies DMX address1)
C-2 (1st channel output occupies DMX address 1;
2nd and 3rd channel output occupy DMX address 2)
6. Screen timeout Short press MODE button to switch the menu to "n".
Press or button to select screen timeout and the third value on the
screen will display 1 or 2.
Options: n-1 (Screen stays on)
n-2 (Screen turns off after 30 seconds of inactivity)

Customized mode
4
Interface of customized mode
Short press the MODE and button simultaneously. When the
screen displays "L-2", it enters the customized mode. Long press
the MODE button for 2s to enter the menu. After parameter sett-
ings are completed, Long press the SETUP button for more than
2s to save the configuration.
WP-803H DMX/RDM CV Decoder
1. Lighting effects
e.g. E-A (7-color gradient)
Short press MODE button to switch the menu to "E".
Pressor button to select the lighting effect and the third value
on the screen will display 1, 2, 3, 4, 5, 6, 7, 8, 9 or A.
Options:
E-1 (no lighting effect)
E-2 (Red)
E-3 (Green)
E-4 (Blue)
E-5 (Yellow)
E-6 (Purple)
E-7 (Cyan)
E-8 (White)
E-9 (7-color jumping)
E-A (7-color gradient)
e.g. E-1 (no lighting effect)
2. Color-changing speed Short press MODE button to switch the menu to "S".
Press or button to select speed and the third value on the
screen will display 1, 2, 3, 4, 5, 6, 7 or 8.
Default: S-5
Options: S-1 / S-2 ······ S-7 / S-8 
Speed levels, speed increases one by one
3. Brightness Short press MODE button to switch the menu to "B".
Press or button to select the brightness level and the third
value on the screen will display 1, 2, 3, 4, 5, 6, 7 or 8.
Default: B-8
Options: B-1 / B-2······ B-7 / B-8 
Brightness levels, brightness increases one by one
4. Screen timeout Short press MODE button to switch the menu to "n".
Press or button to select screen timeout and the third value on the
screen will display 1 or 2.
Options: n-1 (Screen stays on)
n-2 (Screen turns off after 30 seconds of inactivity)

5
Wiring Diagram
DMX/RDM
input
GND
D+ D-
1
3
2
PUSH
1
3
2
PUSH
DMX console
LED+
R
G
B
WP -803H
LED+
R
G
B
WP -803H
LED+
R
G
B
WP -803H
100-240V~
WP-803H DMX/RDM CV Decoder
100-240V~
100-240V~
DMX/RDM
input
DMX/RDM
output
DMX/RDM
input
DMX/RDM
output
If the recoil effect occurs because of long signal line or poor quality wires, please try to connect a 0.25W 90-120Ω terminal resistor at
the end of each line.
When more than 32 DMX decoders are connected, DMX signal amplifiers are needed and signal amplification should not be more than
5 times continuously. If you need to modify the parameter settings of connected DMX/RDM decoders that exceed 32, you can add 1 RDM
signal amplifier. Or you can add 1-5 DMX signal amplifiers after completing the parameter settings.

6
Attentions
This product must be installed and adjusted by a qualified professional.
This product is 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 life the product. Please install the product in a environment with good ventilation.
When you install this product, please avoid being near a large area of metal objects or stacking them to prevent signal
interference.
Please keep the product away from aintensemagneticfield, a high pressure area or a place where lightning is easy
to occur.
Please check whether the working voltage used complies with the parameter requirements of the product.
Before you power on the product, please make sure all the wiring is correct in case of incorrect connection that may
cause a short circuit and damage the components, or trigger a accident.
If a fault occurs, please do not attempt to fix the product by yourself. If you have any question, contact the supplier.
WP-803H DMX/RDM CV Decoder
Update Time: 27/02/2023_A0
www.ltech-led.com
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.
Warranty Agreement
Warranty exclusions below:
Beyond warranty periods.
Any artificial damage caused by high voltage, overload, or improper operations.
Products with severe physical damage.
Damage caused by natural disasters and force majeure.
Warranty labels and barcodes have been damaged.
No any contract signed by LTECH.
Warranty periods from the date of delivery: 5 years.
Free repair or replacement services for quality problems are provided within warranty periods.
1. Repair or replacement provided is the only remedy for customers. LTECH is not liable for any incidental or conse-
quential 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.