Features
• Turn on one or more outputs (or set one or more outputs into PWM mode for brightness control).
• Receives human readable serial commands (RS-232 or RS-485).
RS-232 Commands
Serial command examples are shown in the table below. Baud rate: 115200. Adjust Straight / Null switch as needed.
Standard 3.5mm cable, or adapt to RJ-45 to 3.5mm, PN: 801-373.
STRUCTURE
EXAMPLE
RESULT
[DEV=*;LED=*;OFF]
[DEV=*;LED=*;OFF]
Turn off ALL LEDs for all LM8 units
[DEV=#;LED=$;ON]
[DEV=2;LED=5,6,7;ON]
Turn on LEDs 5, 6 and 7 for LM8 #2
[DEV=#;LED=$;OFF]
[DEV=1;LED=2,8;OFF]
Turn off LEDs 2 and 8 for LM8 #1
[DEV=#;LED=$;PWM=#]
[DEV=1;LED=*;PWM=180]
Set the PWM level to 180 on all LEDs
for LM8 #1
• Multiple units or outputs must be separated by commas
• Brightness range (PWM) is 0-255
• Device address is set by the Address Switch (Base Address of 24 + Binary)
RS-485 Communication Bus
The RS-485 communication bus is for use with custom applications. Standard commands including LED_OFF, LED_ON,
LED_PWM, and LIGHTS_OFF. Baud rate: 57600.
Power
Caution: LED voltage must match power supply voltage (12 or 24 volts). Connect the 12V or 24V power adapter to the
port marked Power Input.
LEDs
Connect LED arrays to the output ports on the model LM8. Observe correct polarity (center positive or left positive) when
connecting to LED strips or bars.
LED Specifications
• Output up to 5A per output, 12A total output
• Max current rating for the board is ~5A @ 12V (60W)
• Max current output per position is 4A @ 12V (48W)
1
2
3
4
5
6
7
8
LEDs Bar or Strip Length
Typical mA Draw
30
11.8 in
210 - 565*
60
23.6 in
355 - 955*
300
16.4 ft
1300 - 3500*
*Variance depends on wavelength and intensity of LED strip.
Color LED Arrays
The LM8 works with Common Anode, analog multi-color strips but not digital LED strips. Connect a common positive
contact on terminal 1 and the three colors to the posititve terminals of 1, 2, and 3. With the wiring shown, use the
commands below for LED color mixing. For more detailed mixing, use PWM commands.
Color Mixing Commands
Red
[DEV=24;LED=1;ON]
Green
[DEV=24;LED=2;ON]
Blue
[DEV=24;LED=3;ON]
Yellow
[DEV=24;LED=1,2;ON]
Magenta
[DEV=24;LED=2,3;ON]
Cyan
[DEV=24;LED=1,3;ON]
White
[DEV=24;LED=1,2,3;ON]
