Ltech LT-874-5A Manual

LT-874-5A
2.4G Wireless DMX512 Decoder
LT-874-5A 4CH CV DMX decoder with OLED display, receiving standard DMX512 protocol data wirelessly.
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.
Adopt 2.4GHz global open ISM frequency channel, 64 groups wireless network can be chosen independently
to avoid interference.
Use relay settings or connect to booster antenna to further the communication distance.

1. Technical Specs:

LT-874-5A
Matched Wireless Emitter: LT-870
DMX512
Receiving Wireless Signal:
Input Voltage: 5~24Vdc
Max Current Load:
5A×4CH Max 20A
Output Power:
100W/240W/480W(5V/12V/24V)
Communication Distance:
350m
Working Frequency:
2.4GHz ISM 64 Channels

2. Product Size:

LT-874-5A Wireless DMX512 Decoder
warranty
5 years
Receiver Sensitivity: -96dBm
Working Temperature:
-30℃～55℃
Dimensions:
L175×W44×H30(mm)
Package Size: L178×W56×H33(mm)
Weight (G.W):
175g
1

3. Configuration Diagram:

Running LED Light
(Turns on when
connect to power)
DIP Switch
RX LED Indicator Light
(flashe w s hen transmit data)

4. OLED Screen Interface Diagram:

DMX Address
DMX Real-time Data
Resolution
Main Display Interface
Figure 1 A
Press "M" key to enter
the setting interface.
Please refer to the OLED display for the detailed information.
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).
[ estore the default parameters]： R In the main display interface (Figure 1), long press "M"/"
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).

5. Dip Switch Operation:

LT-874-5A is used with LT-870 wireless transceiver, so its frequency must be same as LT-870.
Dip Switch(1-6):
64 frequency option (2401-2464MHz)
frequency interval: 1MHz.
Frequency value = 2400+the total value of (1~6)
To get the place value when in "On" position, otherwise namely
Value
"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.
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LT-874-5A Wireless DMX512 Decoder
OLED Screen
LED Lamps
Connection Socket
5~24Vdc
Power Input Socket
Function Keys
DMX Address
DMX Real-time Data
Resolution Dimming Curve
Figure 1 B
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.
∧"/"∨"
2
3 keys