Dmx512 Connection - iSolution ACME User Manual

22 Channel Mode :
(Same configuration as ch. 1 to 16 of 16 channel mode)
16A

5.3. DMX512 Connection

The fixture is equipped with both 3-pin and 5-pin XLR sockets for DMX input and output. The
sockets are wired in parallel. Only use a shielded twisted-pair cable designed for RS-485 and
3-pin XLR-plugs and connectors in order to connect the controller with the fixture or one fixture
with another.
If you are using the standard DMX controllers, you can connect the DMX output of the
controller directly with the DMX input of the first fixture in the DMX-chain. If you wish to
connect .DMX-controllers with other XLR-outputs, you need to use adapter-cables.
1. If you use a controller with 5 pins DMX connector, you need to use a 5 to 3 pin adapter.
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 cable from the output of the unit
to the input of the next unit. The cable cannot be branched or split to a "Y" cable. DMX
512 is a very high-speed signal. Inadequate or damaged cables, soldered 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 a DMX address to receive the data by the controller. The
address number is between 0-511 (usually 0 & 1 are equal to 1).
6. The end of the DMX 512 system should be terminated to reduce signal errors.
7. 3 pin XLR connectors are more popular than 5 pins 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 (+)
17A