The WS27CH3A is a 27-channel DMX512 LED decoder for DC12V-24V common-anode RGB loads, driving 9 RGB groups and occupying 27 consecutive DMX addresses. Rated up to 3A/CH with 81A total reference, it uses DIP switches for start address and FUN for Black/Red/Green/Blue/Yellow/Purple/White, 7-color jump/gradual and speed. With DMX IN/OUT (RJ45/XLR-style pass-through) and V+/RGB terminals, size 242×100×45mm/0.7kg, it suits stage, architectural and signage. DC only—do not connect AC mains; follow polarity and current margin.
27CH / 9 RGB Groups: Drives nine RGB strings via one unit, occupies 27 DMX addresses.
DC12V-24V Input: For common-anode LED strips/modules—not AC HV dimmer.
3A/CH, 81A Total Ref: Per-channel max 3A; plan load, wire gauge and thermal margin.
DIP + FUN Effects: Binary DMX start-address; FUN enables solid colors, 7-color jump/gradual and 1–7 speed steps.
DMX Pass-Through: DMX IN/OUT for daisy-chain wiring; metal/black housing 242×100×45mm, 0.7kg.
|
Parameter |
Specification |
|---|---|
|
Model / Label |
WS27CH3A / 27CH DMX512 DECODER |
|
Type |
27-Channel DMX512 LED Decoder (9 RGB groups) |
|
Control |
DMX512 (RJ45 / 3P reference), DMX IN / DMX OUT |
|
Input/Output Voltage |
DC12V-24V |
|
Output |
27 channels (9 × V+/R/G/B groups per diagram) |
|
Output Current |
Up to 3A per channel; Total 81A (per manual, use with margin) |
|
DMX Footprint |
Occupies 27 DMX addresses |
|
Address Setting |
DIP binary (1/2/4/8/16/32/64/128/256) + FUN(10) |
|
FUN Behavior |
Switch1-9: Black/Red/Green/Blue/Yellow/Purple/White/7-color jump/7-color gradual; 8/9 + 1-7 = speed steps |
|
Working Temp. |
-20℃ ~ 60℃ |
|
Dimension |
242 × 100 × 45 mm |
|
Weight |
0.7 kg |
|
Application |
LED strip, RGB modules, signage, architectural, stage/decor |
|
Safety |
DC only; no AC/mains; common-anode polarity; no short; check DMX A/B & termination |
