Dmx512 Connection - TECshow RAZOR 7 QUAD User Manual

4.5 DMX512 Connection

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 branched or split to a 'Y'cable.DMX512 is a very high-
speed signal.Inadequate or damaged cables,soldered joints
or corroded conectors can easily distort the signal and shut
down the systems.
4. The DMX output and input connectors are pass-through to
maintain the DMX circuit,when one of the units power is dis-
connected.
5. Each lighting unit needs to have an address set to receive
the data sent by the controller.The address number is be-
tween 0-511(usually 0 & 1 are equal to 1.)
6. The end of the DMX512 system should be terminated to re-
duce signal errors
7. 3 pin XLR connector are more popular than 5 pin XLR
• 3 pin XLR:Pin 1:GND,Pin 2:Negative signal(-),Pin 3:Posi-
tive signal(+)
• 5 pin XLR:Pin 1:GND,Pin 2:Negative signal(-),Pin 3:Posi-
tive
• signal(+), Pin 4/ Pin 5:Not used
RAZOR 7 QUAD
ENGLISH VERSION
p. 12