9
GHOST GH500H
ATTENTION
The screened parts of the cable (sleeve) must never be connected to the system’s earth, as this would
cause faulty fixture and controller operation.
Over long runs can be necessary to insert a DMX level matching amplifier.
For those connections the use of balanced microphone cable is not recommended because it cannot
transmit control DMX data reliably.
•
Connect the controller DMX input to the DMX output of the first unit.
•
Connect the DMX output to the DMX input of the following unit. Connect again the output to the input
of the following unit until all the units are connected in chain.
•
When the signal cable has to run longer distance is recommended to insert a DMX termination on the
last unit.
2.8 CONSTRUCTION OF THE DMX TERMINATION
The termination avoids the risk of DMX 512 signals being reflected back along the cable when they reach-
es the end of the line: under certain conditions and with certain cable lengths, this could cause them to
cancel the original signals.
The termination is prepared by soldering a 120Ω 1/4 W resistor between pins 2 and 3 of the 5-pin male XLR
connector, as shown in figure.
Example:
3 pin XLR connector
Fig.5
2.9 DOOR SENSOR
When the unit is under “READY TO HAZE” state, press the FUNCTION button four times, the LCD screen will
show DOOR SENSOR ON. It means that the sensor on the hazer outlet door is activated. At this state, press
MANUAL button to switch off the function of this sensor. After switching off the door sensor, DOOR SEN-
SOR OFF will be shown on the LCD screen. Press VOLUME button to switch on the sensor again.
NOTE - When hazer is under “DOOR SENSOR ON” mode, if the haze outlet door is not opened properly, and
user try to make the hazer work, the buzzer will beep to warn and “DOOR CLOSED!!” will be shown on
the flickering LCD screen and hazing working will be stopped until the door is open firmly. On the other
hand, if hazer is under “DOOR SENSOR OFF” mode, above situation will not occur.
2.10 DIRECT HAZE MODE
When the unit is under “READY TO HAZE” state, press the FUNCTION button five times, the LCD screen
shows DIRECT HAZE. The unit can enter DIRECT HAZE mode by pressing VOLUME button once. Under this
mode, hazer can start to produce haze directly by switching on the power. When the unit is in this mode,
the LCD screen will flicker slowly. When LCD Screen shows DIRECT HAZE by pressing MANUAL button once
can leave DIRECT HAZE mode. After leaving this mode, the LCD screen will stop flickering.
