LT-122 2CH SPI Signal Amplifier LT-122 2CH SPI Signal Amplifier

3. Wiring Diagram:
LT-122 5~36Vdc
Power Input

2CH SPI Signal Amplifier SPI Signal Input

Signal Output 1

These three SPI signal

These three SPI output line
input line can be twisted Signal Output 2
can’t be twisted together.
together
(the amplifier maybe burned)

3.1 LED strip signal expansion of WS2811 single wire. 3.2 LED strip signal expansion of WS2801 double wire.

Power Adapter Power Adapter

100-240Vac 100-240Vac
DMX IN DMX IN SPI OUT DMX IN DMX IN SPI OUT
D C L G D C L G

29 DMXMODE
30 DMX DECODE 29 DMXMODE
30 DMX DECODE
DMX ADDRESS : 001 DMX ADDRESS : 001

FUN FUN

DC DC DC+ DATA CLK GND DC DC DC+ DATA CLK GND

SPI 5-36Vdc SPI 5-36Vdc

signal signal
output output

LT-122 LT-122

warranty + + + + + +

IN

IN
GND GND

+VC

+VC
IN

IN

IN
IN

IN

IN
GND GND GND GND GND GND

+VC

+VC

+VC
+VC

+VC

+VC
5 years

RI

RI
750 750

RI

RI

RI
RI

RI

RI
750 750 750 750 750 750

B R G

B R G

R
511 511

B R G

B R G

B R G

R
B R G

B R G

B R G

R
511 511 511 511 511 511
471 471

471 471 471 471 471 471

471 471

471 471 471 471 471 471

471 471

471 471 471 471 471 471

R
511 511

R
R

R
511 511 511 511 511 511
471 471

471 471 471 471 471 471

LT-122 SPI amplifier can realize SPI (TTL) signal’s expansion, amplification and distribution. Especially suitable for multi-

RS

RS
RS

RS

RS
RS

RS

RS
682 682

104 R

104 R
682 682 682

104 R

104 R

104 R
682 682 682

104 R

104 R

104 R
511 511

511 511 511 511 511 511

471 471

471 471 471 471 471 471

471 471

OUT

OUT
471 471 471 471 471 471

OUT

OUT

OUT
OUT

OUT

OUT
GND GND
GND GND GND GND GND GND

channel sync control projects. It can copy the changes of one channel LEDs to others, so you can connect dozens LEDs than
before by install several signal amplifiers, and save lots of money on the project.
3.3 Multiple pixel screen synchronous display.

LT-122 SPI signal amplifier is full compatibility. can be used to expand all manufacturers' SPI(TTL) signal controller and
lamp's signal in market. And It can connect with SPI(TTL) signal of all ICs .

1. Parameter: A1 B1 C1 D1 E1 A2 B2 C2 D2 E2

LT-122
A1 A2 B1 B2 C1 C2 D1 D2 E1 E2
Input Voltage: 5~36Vdc Working Temp. -30℃~55℃
33

Input Signal: 1CH SPI(TTL) Dimension L92×W37×H30mm

Output Signal: 2CH SPI(TTL) Package Size L123×W43×H42mm LT-122 LT-122 LT-122 LT-122 LT-122

Waterproof Level: IP66 Weight(G.W.) 110g

1 2 3 4 5

2. Product Size: GND LAT CLK DIN GND LAT CLK DIN GND LAT CLK DIN GND LAT CLK DIN GND LAT CLK DIN

OUT16 OUT14 OUT12 OUT10 OUT8 OUT6 OUT4 OUT2

OUT15 OUT13 OUT11 OUT9 OUT7 OUT5 OUT3 OUT1

100-240Vac
MODE + SPEED + M1 SETUP
LT-600
MODE - SPEED - M2 ENTER
37

30

92

1 2 www.ltech-led.com
 LT-122 2CH SPI Signal Amplifier LT-122 2CH SPI Signal Amplifier

3.4 Distance display:

A. Signal wire extending between controller and LED lamps. C. Several piece relay extending

Power Adapter Power Adapter Power Adapter Power Adapter

100-240Vac 100-240Vac
100-240Vac
LT-200 SPI OUT
D C L G
DMX IN LT-200 SPI OUT
D C L G
DMX IN
100-240Vac
LT-200 SPI OUT
D C L G
DMX IN LT-200 SPI OUT
D C L G
DMX IN

DMX IN DMX IN DMX IN DMX IN

SPI SPI
SPI SPI
signal signal
12Vdc 12Vdc signal 12Vdc 12Vdc signal
ouput ouput
The signal wire is ouput The signal wire is ouput
recommended to be 5-36Vdc recommended to be 5-36Vdc 20 meters
5-36Vdc within 20 meters.
5-36Vdc 20 meters
within 20 meters.

LT-122 LT-122 LT-122 LT-122

The Max output is The signal wire is The signal wire is

6CH of single signal line recommended to be recommended to be 20 meters
within 20 meters. within 20 meters. 5-36Vdc 5-36Vdc
20 meters
12Vdc 12Vdc
IN

IN

IN
IN

IN

IN

GND GND GND

IN

IN
GND GND GND
+VC

+VC

+VC
+VC

+VC

+VC

GND GND

+VC

+VC
RI

RI

RI
RI

RI

RI

750 750 750

RI

RI
750 750 750 750 750
B R G

B R G

B R G

R
B R G

B R G

B R G

511 511 511

B R G

B R G

R
511 511 511 511 511

471 471 471 471 471 471 471 471

471 471 471 471 471 471 471 471

471 471 471 471 471 471 471 471

Single signal
R

R
R

R
511 511 511 511 511 511 511 511

Double signal
471 471 471 471 471 471 471 471

colorful LED strip colorful LED strip

LT-122 LT-122
RS

RS

RS
RS

RS

RS

RS

RS
682 682 682
104 R

104 R

104 R

682 682 682

104 R

104 R

104 R

682 682

104 R

104 R
511 511 511 511 511 511 511 511

471 471 471 471 471 471 471 471

471 471 471 471 471 471 471 471

OUT

OUT

OUT
OUT

OUT

OUT

OUT

OUT
GND GND GND GND GND GND GND GND

Single signal wire Double signal wire

B. Signal wire extending between LED lamps. 20 meters 20 meters

Power DC DC DC+ DATA CLK GND

LT-200 Power
DC DC DC+ DATA CLK GND
LT-200 12dc 12Vdc
supply supply

IN

IN
GND GND

+VC

+VC
IN

IN

IN

IN

IN

IN
GND GND GND GND GND GND

+VC

+VC

+VC

+VC

+VC

+VC

RI

RI
750 750

RI

RI

RI

RI

RI

RI
750 750 750 750 750 750

POWER OUTPUT POWER OUTPUT

AC DC AC DC

B R G

B R G

R
511 511

L N L N

B R G

B R G

B R G

B R G

B R G

B R G

R
511 511 511 511 511 511 471 471

471 471 471 471 471 471

471 471

471 471 471 471 471 471

471 471

R
471 471 471 471 471 471 511 511

R
511 511 511 511 511 511
471 471

12Vdc
471 471 471 471 471 471

12Vdc The signal wire is Single signal Double signal

GND

The signal wire is

+VC
Data
IN

GND
+VC

SPI colorful LED strip colorful LED strip

RI

750

SPI
RI

750

recommended to be recommended to be

RS

RS
signal
B R G

511

RS

RS

RS

RS

RS

RS
682 682

104 R

104 R
signal
B R G

within 20 meters.
511

within 20 meters.
471
682 682 682 682 682 682

104 R

104 R

104 R

104 R

104 R

104 R
471
471
511 511
471
511 511 511 511 511 511

471

ouput
471
R

511

ouput
471 471
R

511
471
471 471 471 471 471 471 471 471
471

OUT

OUT
471 471 471 471 471 471
GND GND

OUT

OUT

OUT

OUT

OUT

OUT
GND GND GND GND GND GND

Double signal
Single signal
RS
RS

682
104 R

colorful LED strip

682
104 R

511

511

colorful LED strip 471

471

471
OUT

471
GND
OUT

GND

Single signal wire Double signal wire

The signal wire is The signal wire is
5-36Vdc 5-36Vdc
recommended to be recommended to be
within 1 meter. within 1 meter.

LT-122 LT-122

The signal wire is The signal wire is

recommended to be recommended to be
within 20 meters. within 20 meters.
12Vdc 12Vdc
IN

GND
+VC
IN

GND
+VC

RI

750
RI

750
B R G

511

471
B R G

511

471
471

471

471
R

511
471

471

Single signal
R

511

Double signal
471

colorful LED strip colorful LED strip

No further notice if any changes in the manual.
Product function depends on the goods.
RS

682
104 R
RS

682
104 R

511

511

471

Please feel free to contact our official distributor if any question.

471
OUT

471

GND
471
OUT

GND

Double signal wire

Single signal wire
3 4 Update time：2019.03.14_A1