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DEMUX 24 USER GUIDE                       

 

 

Zero88 Lighting Ltd, Usk House, Llantarnam Park, Cwmbran, Gwent NP44 3HD, U.K 

Tel: +44 (0) 1633 838088 (24hr Answer Phone) Fax: +44 (0) 1633 867880 

73-402-00                                                       Email: 

[email protected]

 

IM7752 Demux24 Manual Issue 1.0.doc 

www.zero88.com

 

Page 3 of 3 

Servicing Functions: 
 
There are three further modes available within Super 
User, which are used for servicing and maintenance 
purposes.  It is strongly recommended that these are 
only accessed by Zero 88 staff or an appointed    
Zero 88 dealer. However, they can be accessed in 
the same way as before, using the ‘Up & Down’ 
Arrows to scroll through the memories and ‘Enter’ to 
activate.  
 
The

 “leds”

 function tests the segment display. 

Pressing ‘Enter’ for 1 second will activate the test.  
When activated the displays will begin to cycle 
through a series of patterns. 
 

“rdt”

 is used to test the hardware for RDM 

functionality. Pressing ‘Enter’ for second will activate 
the test.  RDM functionality has been implemented in 
hardware, however the current firmware does not 
support the extra functionality.  This test checks that 
the hardware is functioning correctly. 
 

“upgr”

 is used to re-programme the Demux 24’s 

firmware.  This can only be done in the factory. 
 
 

Technical: 
 
 
 
 
 
 
 
 

Electrical: 
The Demux 24 is designed to operate on the 
following mains input specification. The Demux 24 
may not operate satisfactorily outside this 
specification. 
 
 - Mains Supply Voltage: 85-264V AC 
 - Frequency: 47 – 63 Hz 
 - Single Phase CEE22 inlet connector 
 
Mechanical: 
 
 - Height: 44mm 
 - Width: 483mm 
 - Depth: 128mm 
 - Weight: 3.0kg (6.6lb) 
 
Analogue Output Connections 
 
 - Four 8-pin ring-locking DIN connectors, six 
channels each. 
 -  Short circuit proof, all channels capable of 5mA, 
diode output. 
 - Positive / Negative polarity by software selection. 
 - Any dimmer supply not used. 
 - Pin assignment is: 
 
Pin 1 

Channel 1   (7,  13,  19) 

Pin 2 

Channel 2   (8,  14,  20) 

Pin 3 

Channel 3   (9,  15,  21) 

Pin 4 

Channel 4   (10, 16, 22) 

Pin 5 

Channel 5   (11, 17, 23) 

Pin 6 

Channel 6   (12, 18, 24) 

Pin 7 

Not connected 

Pin 8 

0V 

 
 
 

DMX Connections 
 
One male and one female 5 pin XLR connector. 
Opto-isolated. Pin assignment is: 
 
Pin 1 

0V 

Pin 2 

DMX- (RS485 B line) 

Pin 3 

DMX+ (RS485 A line) 

Pin 4 

Reserved 

Pin 5 

Reserved 

 
DMX Indication: 
 

On 

DMX dimmer data (start byte of 00) 
being received OK. 

Flash Fast 

DMX data being received, but not 
dimmer data (start byte of 00) 

Flash Slow 

DMX data errors occurring. 

Off 

No DMX data being received. 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Notes: 

 
Zero 88 Lighting Ltd reserves the right to make 
changes to the equipment described in this manual 
without prior notice. 
 
This equipment is designed for professional stage 
lighting control, and is unsuitable for any other 
purpose. 
 
It should be used by, or under the supervision of, an 
appropriately qualified or trained person. 
 
E&OE. Zero88 Lighting Ltd reserves the right to 
change the specification without prior notice. 
 
Manual Stock Number: 7340200 
 
Issue 1.0: July 2004  
 
© Zero 88 Lighting Ltd 2004 

WARNING 

DO NOT REMOVE COVERS WITHOUT FIRST 

COMPLETELY DISCONNECTING THE DEMUX 

24 FROM THE MAINS SUPPLY. 

 

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