Ltech LT-874-5A User manual

1
LT-874-5A
use with our LT-870 wireless emitter, supporting point to point, point to multi-point communication. One
emitter can match multiple receivers if using the same frequency, self-testing function also available.
LT-874-5A 4CH CV DMX decoder with OLED display, receiving standard DMX512 protocol data wirelessly.
LT-874-5A Wireless DMX512 Decoder
LT-874-5A
2.4G Wireless DMX512 Decoder
warranty
5 years
Use relay settings or connect to booster antenna to further the communication distance.
Adopt 2.4GHz global open ISM frequency channel, 64 groups wireless network can be chosen independently
to avoid interference.
1. Technical Specs:
Matched Wireless Emitter:
Receiving Wireless Signal:
Input Voltage:
Max Current Load:
Output Power:
Communication Distance:
Working Frequency:
LT-870
DMX512
5~24Vdc
5A×4CH Max 20A
100W/240W/480W(5V/12V/24V)
350m
2.4GHz ISM 64 Channels
2. Product Size:
Receiver Sensitivity:
Working Temperature:
Dimensions:
Package Size:
Weight (G.W):
-96dBm
-30℃～55℃
L175×W44×H30(mm)
L178×W56×H33(mm)
175g
2
Function Keys
OLED Screen
DMX Address DMX Address
DMX Real-time Data DMX Real-time Data
Resolution Resolution Dimming Curve
Main Display Interface Figure 1 B
Figure 1 A
Please refer to the OLED display for the detailed information.
64 frequency option (2401-2464MHz)
frequency interval: 1MHz.
3. Configuration Diagram:
4. OLED Screen Interface Diagram:
5~24Vdc
LED Lamps
Connection Socket
Power Input Socket
Press "M" key to enter
the setting interface.
[estore the default parameters]：RIn the main display interface (Figure 1), long press ”M”/" 3 keys
simultaneously, LT-874-5A will restore the default parameters, and the screen display “Device restore default”
for 2 seconds, then it will return to the main display interface (Figure 1).
∧"/"∨"
LT-874-5A will run the test scenes only when you enter "self-test” interface.
Screensaver enable time: undo for 2 minutes in the main display interface (Figure 1).
5. Dip Switch Operation:
DIP Switch
Running LED Light
(Turns on when
connect to power)
RX LED Indicator Light
s hen (flashe w data)transmit
Frequency value = 2400+the total value of (1~6)
To get the place value when in "On" position, otherwise namely
"Off" position will be 0.
E.g.: Set the frequency to 2437M.
The value summation from 1~6 is 001+004+032=37,
so the transceiver frequency is 2400+37=2437M.
Value
Press "M" key, switch entries.
Press "∧" or “∨" key, adjust parameters.
Long press "M" key, return to the main
display interface(Figure 1).
Exit: Return to the previous menu.
LT-874-5A Wireless DMX512 Decoder
LT-874-5A is used with LT-870 wireless transceiver, so its frequency must be same as LT-870.
Dip Switch(1-6):
www.ltech-led.com

3
LT-870
Sending end
Receiving end
Receiving end
Relay Point
Frequency
Point A
Frequency
Point B
LT-870
6. Wiring Diagram:
2.4G Wireless transmission
DMX512 Console
DMX512 Console
Console signal cable
connected to wireless
DMX emitter.
LED Strip
LED Strip
LED Strip
LED Strip
Please install the
booster antenna
in high open place,
the communication
distance can up to
1000-2000 meters
generally.
Booster Antenna Booster Antenna
Booster Antenna
6.1 neO sending end,multiple receiving ends:
6.2 Relay way to extend the communication distance:
6.3 Extend the communication distance by boost antenna:
Sending end
DMX512 Console
【Attn】
LT-874-5A
LT-874-5A
LT-874-5A
LT-874-5A
Receiving end
Receiving end
4Update Time: 2016.08.18
7. Attention:
7.1 The product shall be installed and serviced by the qualified person.
7.2 This product is non-waterproof. Please avoid the sun and rain. When installed outdoors, please
ensure it is mounted in a water proof enclosure.
7.3 Good heat dissipation will prolong the working life of the controller. Please ensure good ventilation.
7.4 Please check if the output voltage of the LED power supply used comply with the working voltage of
the product.
7.5 Please ensure that adequate sized cable is used from the controller to the LED lights to carry
current. Please also ensure that the cable is secured tightly in the connector.
the
7.6 Ensure all wire connections and polarities are correct before applying power to avoid any damages
to the lights.
7.7 If a fault occurs, please return the product to your supplier. Do not attempt to fix this product by
yourself.
8.1 We provide lifelong technical assistance with this product:
A 5-year warranty is given from the date of purchase. The warranty is for free repair or
replacement if cover manufacturing faults only.
For faults beyond the 5-year warranty, we reserve the right to charge for time and parts.
8.2 Warranty exclusions below:
Any man-made damages caused from improper operation, or connecting to excess voltage and
overloading.
The product appears to have excessive physical damage.
Damage due to natural disasters and force majeure.
Warranty label, fragile label and unique barcode label have been damaged.
The product has been replaced by a brand new product.
8.3 Repair or replacement as provided under this warranty is the exclusive remedy to the customer.
We shall not be liable for any incidental or consequential damages for breach of any stipulation
in this warranty.
8.4 Any amendment or adjustment to this warranty must be approved in writing by our company only.
★ This manual only applies to this model. We reserve the right to make changes without prior notice.
8. Warranty Agreement:
www.ltech-led.com
LT-874-5A Wireless DMX512 Decoder LT-874-5A Wireless DMX512 Decoder