MBT Lighting ST7500DMX - Manual (Page 5)

8B
DMX512 Address Chart
Dip #1 #2 #3 #4 #5 #6 #7 #8 #9 #10
Value 1 2 4 8 16 32 64 128 256 Option
•
Examples:
Channel 1 : dip / on : #1 ( =1 )
Channel 3 : dip / on : #1, #2 ( 1 + 2 = 3)
Channel 5 : dip / on : #1, #3 ( 1 + 4 = 5 )
Channel 7 : dip / on : #1, #2, #3 ( 1 + 2 + 4 = 7 )
7. DMX512 Configuration
DMX512 configuration
Channel 1 Channel 2 DMX512
Level rang 0~255 Strobe Speed Dimmer
240~255 Speed 15 Dimmer 15
224~239 Speed 14 Dimmer 14
208~223 Speed 13 Dimmer 13
192~207 Speed 12 Dimmer 12
176~191 Speed 11 Dimmer 11
160~175 Speed 10 Dimmer 10
144~159 Speed 9 Dimmer 9
128~143 Speed 8 Dimmer 8
112~127 Speed 7 Dimmer 7
96~111 Speed 6 Dimmer 6
80~95 Speed 5 Dimmer 5
64~79 Speed 4 Dimmer 4
48~63 Speed 3 Dimmer 3
32~47 Speed 2 Dimmer 2
16~31 Speed 1 Dimmer 1
0~15 Stopped Blackout
9B
8. DMX512 Connection
The DMX512 is widely used in intelligent lighting control, with a maximum of 512
channels.
1. If you using a controller with 5 pins DMX output, you need to use a 5 to 3 pin
adapter-cable.
2. At last unit, the DMX cable has to be terminated with a terminator. Solder a
120 ohm 1/4W resistor between pin 2(DMX-) and pin 3(DMX+) into a 3-pin
XLR-plug and plug it in the DMX-output of the last unit.
3. Connect the unit together in a ‘daisy chain’ by XLR plug from the output of the
unit to the input of the next unit. The cable can not be branched or split to a ‘Y’
cable. DMX512 is a very high-speed signal. Inadequate or damaged cables,
solder joints or corroded connectors can easily distort the signal and shut
down the system.
4. The DMX output and input connectors are pass-through to maintain the DMX
circuit, when power is disconnected to the unit.
5. Each lighting unit needs to have an address set to receive the data sent by the
controller. The address number is between 0-511 (usually 0 & 1 are equal to
1).
6. The end of the DMX512 system should be terminated to reduce signal errors.
7. 3 pin XLR connectors are more popular than 5 pin XLR.
3 pin XLR: Pin 1: GND, Pin 2: Negative signal (-), Pin 3: Positive signal (+)
5 pin XLR: Pin 1: GND, Pin 2: Negative signal (-), Pin 3: Positive signal (+)