Troubleshooting - Nicols HOP'S Manuel D'utilisation

4.3 DMX Controller
An universal DMX controller to control the units, you have to set DMX address from 1 to 512
channel so that the units can receive DMX signal.
Press the MENU button up to when the
button and the display will blink. Use DOWN and UP button to change the DMX512 address.
Once the address has been selected, press and keep ENTER button pressed up to when
the display stops blinking or storing automatically 8 seconds later. To go back to the
functions without any change press the MENU button again. If you use please refer to the
following diagram to address your DMX512 channel for the first 4 units.
4.4 DMX 512 Configuration
is showing on the display. Pressing ENTER
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4.5 DMX512 Connection
The DMX 512 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 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 one of the units' power is disconnected.
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 DMX 512 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 (+)

5. Troubleshooting

Following are a few common problems that may occur during operation. Here are
some suggestions for easy troubleshooting:
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