Major 4000896 Manual Download Page 4

 

 

4

 

  

Version: 2.0, 18.11.2011 

DMX Input / Output 

The control signal (DMX) is fed through the XLR5pol. male socket. The DMX output is 
a “feed through” output, which means that the DMX signal will be daisy-chained and 
will also be available on the output in case of a power failure. Major PSUs are 
designed to put minimum strain on the DMX signal. 

 

Termination 

If the Major PSU is the last unit in line (of DMX cabling), the DMX signal must be ter-
minated. Therefore you will find a termination switch on the unit. 

If the termination switch is set to ON, the Micro PSU indicates this by the yellow LED 
and the MAXI PSU by the flashing red LED. 

 

Output / Return sockets  

In order to protect the main DMX signal against negative influences caused by defec-
tive cabling, etc..., it is galvanically separated from the Colour Changer outputs via 
opto-isolated coupling inside the PSU. 

The outputs to the scrollers are designed as XLR4pol. sockets, which are connected 
with the XLR4pol. male socket of the first Colour Changer in line via Major Power/Data 
cables. Further scrollers are connected from the  XLR4pol. female socket of the first 
Colour Changer in line to the second one, etc...  

In order to improve current feeding and DMX transmission, we always recommend to 
connect a so-called return cable from the last scroller on each output back to the PSU 
return socket (XLR4pol. male). This way the supply voltage will be led back again to 
the Colour Changer – in parallel to the output. Via an internal termination resistor the 
loop cabling is automatically terminated when connecting the return cable. 

 

Protection 

Each PSU output is internally protected. The fuse on the PCB inside the Micro PSU is 
able to put itself back. 

Inside the Maxi PSU you will find so-called “Pico Fuses”, which are located on the 
PCB. These fuses protect the PCB against damages, which might be caused by 
incorrectly assigned or defective scroller cables.  

Pin assignment 

Summary of Contents for 4000896

Page 1: ...Power Supply Unit PSU Maxi PSU Micro PSU Manual...

Page 2: ...or publish any part of this manaul neither in printed form nor by photos or electronic media All technical specifications are subject to change without Notification Contact service and support Germany...

Page 3: ...on the Colour Changer itself The external power supply unit PSU combines the DMX signal with the internal 24 V DC of the Colour Changer These power control signals are available on the female XLR4 ou...

Page 4: ...U The outputs to the scrollers are designed as XLR4pol sockets which are connected with the XLR4pol male socket of the first Colour Changer in line via Major Power Data cables Further scrollers are co...

Page 5: ...reases the maximum cable length which you can use within the system In order to ensure a reliable operation you should not use more than 300 m total cable length theoretical figure per output Please n...

Page 6: ...24 V DC supply is OK When the termination switch is activated the red LED is flashing The green LED indicates that a DMX signal is present at the XLR5pol input The Micro PSU has three LEDs The yellow...

Page 7: ...o isolated DMX512 input low load Yes Switch for termination of the DMX512 input Yes Connector Mains powerCON blue Mains input 100 240V Volt AC Standard Max number of units altogether 6 x 6 8 12 PRO or...

Page 8: ...293 x 250 Weight 3 3 kg 7 3 lbs Connectors Out to scrollers XLR 4 pin F Connectors Return from scroller XLR 4 pin M Connector DMX512 input XLR 5 pin M Connector DMX512 output XLR 5 pin F Opto isolate...

Page 9: ...8 Lite PRO Max number of scroller per output 12 x 6 8 12 PRO or 6 x 15 8 Lite PRO CE approval 2006 95 EG Niederspannungsrichtlinie 2004 108 EG Elektromagnetische Vertr glichkeit EN 60204 1 Sicherheit...

Page 10: ...10 Version 2 0 18 11 2011...

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