Ltech LT-DMX-6803 User manual

LT- DMX-6803 DMX512 Decoder User’s Manual Page 1 of 14
LT-DMX-6803
DMX512 DECODER
User’s Manual
(Kindly read through this manual carefully before use)

LT- DMX-6803 DMX512 Decoder User’s Manual Page 2 of 14
Forward
Thanks for choosing LT-DMX-6803 Decoder. Before installation and use, we
strongly recommend you to read through this manual carefully to avoid
unnecessary damage or extra cost.
，After-sales Service
From the day you purchase our products within a year, if being used properly in
accordance with the instruction, and quality problems occur, we provide free
repair or replacement services except the following cases:
1. Any defects caused by wrong operations..
2. Any damages caused by unauthorized removal, maintenance, modifying
circuit, incorrect connections and replacing chips.
3. Any damages due to transportation, vibration etc after the purchase.
4. Any damages caused by earthquake, fire, lightning strike, pollution and
abnormal voltage.
5. Any damages caused by negligence, inappropriate storing at high
temperature and humidity environment or near harmful chemicals.
6. Product has been updated.
Safety Warnings
To ensure a perfect product and safe using, pls do follow the instructions
and tips.
1. Please don’t install this decoder in lightening, intense magnetic and
high-voltage fields.
2. To reduce the risk of component damage and fire caused by short circuit,
make sure correct connection
3. Always be sure to mount this unit in an area that will allow proper ventilation
to ensure a fitting temperature.
4. Check if the voltage and power adapter suit the decoder & if anode or
cathode definition is the same as the controller’s.
5. Don’t connect cables with power on, make sure a correct connection and no
short circuit checked with instrument before power on.
6. Please don’t repair without permission if problems occur.
For update information, kindly please consult with your supplier.

LT- DMX-6803 DMX512 Decoder User’s Manual Page 3 of 14
Product Brief
LT-DMX-6803 DMX512 decoder is dedicated to run LED pixel lights with chip
LPD-6803 ，with the help of DMX decoder’s data conversion, all led pixel lights
with Chip LPD6803, Chip LPD-6803 outputs 3 CC channels, with built-in grey
scale processor, compatible with 32/256 grey scales, the data cable includes
only two cords, convenient for design and installation of LED lights. Chip 6803 is
widely used among LED pixel light, LED dreamy wall, LED pixel screen, SMD
strip, hi-power flood light and led wall washer etc.
Ⅰ. Specifications:
Working voltage DC5V～DC24V
Input signal DMX512/1990
Output signal LPD6803 specific protocol
DMX channel 360 Ch/unit
Output grey step Max 256 steps
DMX512 connector：standard 3-pin connector
Product dimension L125×W52×H40mm
Casing size L135×W70×H50mm
Weight(GW) 0.3kg
Ⅱ. Configuration Diagram:
DMX Input Terminal

LT- DMX-6803 DMX512 Decoder User’s Manual Page 4 of 14
6803 Data output terminal
Terminal definition：
Terminal Function
DC+ DC- DC5-24V power input
DATA Data cord
CLK Clock cord
NC No connection
GND Ground cord
Warning: the power cable can’t connect the data port, otherwise it will damage the
decoder!
Ⅲ. Address Setting
This decoder can decode 96 DMX addresses, adopted Dip switch to set the
address, the Dip switches from 1 to 9 are a kind of binary value coding switches,
the 1st bit is LSC, the 9th bit MSC, can set 511 addresses totally.
DMX512 initial address code is equal to the total amount of the Dip switches’
numbers from 1 to 9, press Dip switch downward (ON: at position “1”), you can
get the number of its position, if press upward (at position “0”), the value of its
position is 0.
Only when the DIP switch FUN(10)＝OFF(at position “0”), DMX512 signal is
accepted

LT- DMX-6803 DMX512 Decoder User’s Manual Page 5 of 14
Example 1: Set to 37
Set the 6th, 3rd, 1st bit of the DIP switch downward to “1”, others
to “0”(Figure 1), the total sum from 1 to 9 is 32+4+1, so the
DMX512 initial address code is 37.
Figure 1
Example 2:
Set DMX512 original address code as 385: Set the 9th, 8th, 1st bit of
the DIP switch downward to “1”, the rest to “0”(as Figure 2),
the total sum from 1 to 9 is 256+128+1, so the DMX512 original
address code is 385.
Figure 2

LT- DMX-6803 DMX512 Decoder User’s Manual Page 6 of 14
Ⅳ. Instructions on the testing function
The 10th DIP switch is FUN, acting as the function key.
FUN＝OFF works to receive DMX512 signals.
FUN＝ON works to test decoders as Figure 3:
SWITCH1－9 OFF：BLACK
SWITCH1 IS ON：RED
SWITCH2 IS ON: GREEN
SWITCH3 IS ON: BLUE
SWITCH4 IS ON: YELLOW
SWITCH5 IS ON: PURPLE
SWITCH6 IS ON: CYAN
SWITCH7 IS ON: WHITE
SWITCH8 IS ON: 7 CLOLOR JUMPING (8 speed steps)
SWITCH9 IS ON: 7 COLOR SMOOTH (8 speed steps)
Figure 3
See Figure 4, if multi dip switches are on, the function is subject to the last switch.
Figure 4

LT- DMX-6803 DMX512 Decoder User’s Manual Page 7 of 14
Ⅴ. Conjunction Diagram (LED lights are all with LPD6803 driving chips)
1．Connects with LED pixel lights：
2．Connects to LED Hi-power wall washer：
Acoording to DMX512 protocol, in order to ensure a steady data transmission,
you should add a metalster(Metal Thin Film resistor，90-120Ω1/4 W )at the end of
each layout of DMX data cable(between Foot 2 and Foot 3, Data + and Data -),
please also refer to your dmx console manual to select a correct resistor

LT- DMX-6803 DMX512 Decoder User’s Manual Page 8 of 14
DMX Address Setting Table
DIP SWITCH DMX ADDR DIP SWITCH DMX ADDR DIP SWITCH DMX ADDR
123456789 NUMBER 123456789 NUMBER 123456789 NUMBER
100000000 001 001110000 028 111011000 055
010000000 002 101110000 029 000111000 056
110000000 003 011110000 030 100111000 057
001000000 004 111110000 031 010111000 058
101000000 005 000001000 032 110111000 059
011000000 006 100001000 033 001111000 060
111000000 007 010001000 034 101111000 061
000100000 008 110001000 035 011111000 062
100100000 009 001001000 036 111111000 063
010100000 010 101001000 037 000000100 064
110100000 011 011001000 038 100000100 065
001100000 012 111001000 039 010000100 066
101100000 013 000101000 040 110000100 067
011100000 014 100101000 041 001000100 068
111100000 015 010101000 042 101000100 069
000010000 016 110101000 043 011000100 070
100010000 017 001101000 044 111000100 071
010010000 018 101101000 045 000100100 072
110010000 019 011101000 046 100100100 073
001010000 020 111101000 047 010100100 074
101010000 021 000011000 048 110100100 075
011010000 022 100011000 049 001100100 076
111010000 023 010011000 050 101100100 077
000110000 024 110011000 051 011100100 078
100110000 025 001011000 052 111100100 079
010110000 026 101011000 053 000010100 080
110110000 027 011011000 054 100010100 081

LT- DMX-6803 DMX512 Decoder User’s Manual Page 9 of 14
DMX Address Setting Table
DIP SWITCH DMX ADDR DIP SWITCH DMX ADDR DIP SWITCH DMX ADDR
123456789 NUMBER 123456789 NUMBER 123456789 NUMBER
010010100 082 101101100 109 000100010 136
110010100 083 011101100 110 100100010 137
001010100 084 111101100 111 010100010 138
101010100 085 000011100 112 110100010 139
011010100 086 100011100 113 001100010 140
111010100 087 010011100 114 101100010 141
000110100 088 110011100 115 011100010 142
100110100 089 001011100 116 111100010 143
010110100 090 101011100 117 000010010 144
110110100 091 011011100 118 100010010 145
001110100 092 111011100 119 010010010 146
101110100 093 000111100 120 110010010 147
011110100 094 100111100 121 001010010 148
111110100 095 010111100 122 101010010 149
000001100 096 110111100 123 011010010 150
100001100 097 001111100 124 111010010 151
010001100 098 101111100 125 000110010 152
110001100 099 011111100 126 100110010 153
001001100 100 111111100 127 010110010 154
101001100 101 000000010 128 110110010 155
011001100 102 100000010 129 001110010 156
111001100 103 010000010 130 101110010 157
000101100 104 110000010 131 011110010 158
100101100 105 001000010 132 111110010 159
010101100 106 101000010 133 000001010 160
110101100 107 011000010 134 100001010 161
001101100 108 111000010 135 010001010 162

LT- DMX-6803 DMX512 Decoder User’s Manual Page 10 of 14
DMX Address Setting Table
DIP SWITCH DMX ADDR DIP SWITCH DMX ADDR DIP SWITCH DMX ADDR
123456789 NUMBER 123456789 NUMBER 123456789 NUMBER
110001010 163 011111010 190 100110110 217
001001010 164 111111010 191 010110110 218
101001010 165 000000110 192 110110110 219
011001010 166 100000110 193 001110110 220
111001010 167 010000110 194 101110110 221
000101010 168 110000110 195 011110110 222
100101010 169 001000110 196 111110110 223
010101010 170 101000110 197 000001110 224
110101010 171 011000110 198 100001110 225
001101010 172 111000110 199 010001110 226
101101010 173 000100110 200 110001110 227
011101010 174 100100110 201 001001110 228
111101010 175 010100110 202 101001110 229
000011010 176 110100110 203 011001110 230
100011010 177 001100110 204 111001110 231
010011010 178 101100110 205 000101110 232
110011010 179 011100110 206 100101110 233
001011010 180 111100110 207 010101110 234
101011010 181 000010110 208 110101110 235
011011010 182 100010110 209 001101110 236
111011010 183 010010110 210 101101110 237
000111010 184 110010110 211 011101110 238
100111010 185 001010110 212 111101110 239
010111010 186 101010110 213 000011110 240
110111010 187 011010110 214 100011110 241
001111010 188 111010110 215 010011110 242
101111010 189 000110110 216 110011110 243

LT- DMX-6803 DMX512 Decoder User’s Manual Page 11 of 14
DMX Address Setting Table
DIP SWITCH DMX ADDR DIP SWITCH DMX ADDR DIP SWITCH DMX ADDR
123456789 NUMBER 123456789 NUMBER 123456789 NUMBER
001011110 244 111100001 271 010101001 298
101011110 245 000010001 272 110101001 299
011011110 246 100010001 273 001101001 300
111011110 247 010010001 274 101101001 301
000111110 248 110010001 275 011101001 302
100111110 249 001010001 276 111101001 303
010111110 250 101010001 277 000011001 304
110111110 251 011010001 278 100011001 305
001111110 252 111010001 279 010011001 306
101111110 253 000110001 280 110011001 307
011111110 254 100110001 281 001011001 308
111111110 255 010110001 282 101011001 309
000000001 256 110110001 283 011011001 310
100000001 257 001110001 284 111011001 311
010000001 258 101110001 285 000111001 312
110000001 259 011110001 286 100111001 313
001000001 260 111110001 287 010111001 314
101000001 261 000001001 288 110111001 315
011000001 262 100001001 289 001111001 316
111000001 263 010001001 290 101111001 317
000100001 264 110001001 291 011111001 318
100100001 265 001001001 292 111111001 319
010100001 266 101001001 293 000000101 320
110100001 267 011001001 294 100000101 321
001100001 268 111001001 295 010000101 322
101100001 269 000101001 296 110000101 323
011100001 270 100101001 297 001000101 324

LT- DMX-6803 DMX512 Decoder User’s Manual Page 12 of 14
DMX Address Setting Table
DIP SWITCH DMX ADDR DIP SWITCH DMX ADDR DIP SWITCH DMX ADDR
123456789 NUMBER 123456789 NUMBER 123456789 NUMBER
101000101 325 000001101 352 110111101 379
011000101 326 100001101 353 001111101 380
111000101 327 010001101 354 101111101 381
000100101 328 110001101 355 011111101 382
100100101 329 001001101 356 111111101 383
010100101 330 101001101 357 000000011 384
110100101 331 011001101 358 100000011 385
001100101 332 111001101 359 010000011 386
101100101 333 000101101 360 110000011 387
011100101 334 100101101 361 001000011 388
111100101 335 010101101 362 101000011 389
000010101 336 110101101 363 011000011 390
100010101 337 001101101 364 111000011 391
010010101 338 101101101 365 000100011 392
110010101 339 011101101 366 100100011 393
001010101 340 111101101 367 010100011 394
101010101 341 000011101 368 110100011 395
011010101 342 100011101 369 001100011 396
111010101 343 010011101 370 101100011 397
000110101 344 110011101 371 011100011 398
100110101 345 001011101 372 111100011 399
010110101 346 101011101 373 000010011 400
110110101 347 011011101 374 100010011 401
001110101 348 111011101 375 010010011 402
101110101 349 000111101 376 110010011 403
011110101 350 100111101 377 001010011 404
111110101 351 010111101 378 101010011 405

LT- DMX-6803 DMX512 Decoder User’s Manual Page 13 of 14
DMX Address Setting Table
DIP SWITCH DMX ADDR DIP SWITCH DMX ADDR DIP SWITCH DMX ADDR
123456789 NUMBER 123456789 NUMBER 123456789 NUMBER
011010011 406 100011011 433 001100111 460
111010011 407 010011011 434 101100111 461
000110011 408 110011011 435 011100111 462
100110011 409 001011011 436 111100111 463
010110011 410 101011011 437 000010111 464
110110011 411 011011011 438 100010111 465
001110011 412 111011011 439 010010111 466
101110011 413 000111011 440 110010111 467
011110011 414 100111011 441 001010111 468
111110011 415 010111011 442 101010111 469
000001011 416 110111011 443 011010111 470
100001011 417 001111011 444 111010111 471
010001011 418 101111011 445 000110111 472
110001011 419 011111011 446 100110111 473
001001011 420 111111011 447 010110111 474
101001011 421 000000111 448 110110111 475
011001011 422 100000111 449 001110111 476
111001011 423 010000111 450 101110111 477
000101011 424 110000111 451 011110111 478
100101011 425 001000111 452 111110111 479
010101011 426 101000111 453 000001111 480
110101011 427 011000111 454 100001111 481
001101011 428 111000111 455 010001111 482
101101011 429 000100111 456 110001111 483
011101011 430 100100111 457 001001111 484
111101011 431 010100111 458 101001111 485
000011011 432 110100111 459 011001111 486

LT- DMX-6803 DMX512 Decoder User’s Manual Page 14 of 14
DMX Address Setting Table
DIP SWITCH DMX ADDR DIP SWITCH DMX ADDR DIP SWITCH DMX ADDR
123456789 NUMBER 123456789 NUMBER 123456789 NUMBER
111001111 487 000011111 496 100111111 505
000101111 488 100011111 497 010111111 506
100101111 489 010011111 498 110111111 507
010101111 490 110011111 499 001111111 508
110101111 491 001011111 500 101111111 509
001101111 492 101011111 501 011111111 510
101101111 493 011011111 502 111111111 511
011101111 494 111011111 503
111101111 495 000111111 504