Zero88 DEMUX24 User manual
DEMUX24 USER GUIDE
Zero88 Lighting Ltd, Usk House, Llantarnam Park, Cwmbran, Gwent NP44 3HD, U.K www.zero88.com
73-402-00 IM7752Demux24ManualIssue2.doc Page 1 of 3
Specification Overview:
The Demux24 is a 24 channel DMX to analogue
converter, housed in a compact 1U 19” rack mounting
case.
The Demux24 is well specified, featuring four ring
locking DIN output connectors (each carrying six
channels), preheat and 4 output laws selectable per
channel, positive / negative polarity and DMX address
selectable per output socket, and manual level control
plus 12 memories for standalone operation. Remote
operation is possible by DMX, with optional end-of-line
termination.
Control Interface
The main display consists of four seven-segment
displays; the data displayed is dependent on the set-up
mode of the Demux24. Around the outside of these
displays are eight LEDs. Seven of which indicate the
current set-up mode of the Demux24, the eighth is used
for DMX indication.
The Demux24 has a default mode, for operation. In this
mode none of the set-up mode LEDs will be lit, the main
display will show the DMX address(es) and if it has
been terminated a small dot will be shown in the bottom
right of the fourth display.
Mode Button:
The Mode button is used to cycle through the different
set-up modes. They are;
- Manual
- DMX address
- DMX fail
- Memory
- Preheat
- Law
- Polarity
- Default
Enter Button:
The Enter button is used to confirm actions.
Up & Down Buttons:
These are used to adjust the values shown in the main
display. Pressing both buttons together will reset the
display to the default values.
Set-up Modes:
Manual Control:
The Manual Control Mode allows the user to set-up a
look on the outputs without the need of an external
controller.
Select „Manual‟ mode using the ‘Mode’ button. The
display will show CC.LL, where CC is the channel
number and LL is the level. Select the channel you
require or ‘A’ for all channels, using the ‘Up & Down’
Arrows and press ‘Enter’. Now set the level you require
using the ‘Up & Down’ Arrows and press ‘Enter’ again
to confirm and move back to the channel selection.
DMX Address:
There are 2 ways that the Demux24 can be patched –a
single DMX start address can be set for the block of 24
channels (block patch), or each output socket (6
channels) can be given a different DMX start address.
For block patch, the range of DMX start addresses is
001 –489. In default mode the single DMX start
address of the block will be shown on the display.
For individual patch, the range of DMX start addresses
is 001 –507. In default mode all four DMX start
addresses are cycled on the display.
Select „DMX ADDRESS‟ using the ‘Mode’ button, the
display will show S.AAA, where S is the socket number
and AAA is the current DMX address for that socket.
Select the socket you require (1-4), or ‘A’ for all sockets
(block patch), using the ‘Up & Down’ Arrows and press
‘Enter’. Now set the address you require using the ‘Up
& Down’ Arrows and press ‘Enter’ again to confirm and
move back to the socket selection.
DMX Fail:
There are three DMX fail modes available –‘fade to
black’, ‘hold DMX’ and ‘fade to memory’.
Select ‘DMX Fail‟ using the ‘Mode’ button. Using the
‘Up & Down’ Arrows select your preferred choice from
the list below;
Fail Mode
Main Display
Hold Last State
Hold
Fade to Zero
F 00
Fade to Memory 1 - 12
F 01 –F 12
DEMUX24 USER GUIDE
Zero88 Lighting Ltd, Usk House, Llantarnam Park, Cwmbran, Gwent NP44 3HD, U.K www.zero88.com
73-402-00 IM7752Demux24ManualIssue2.doc Page 2 of 3
Memories:
The Demux24 will store 12 memories for stand alone
operation, these can only be re-called if there is no
DMX present.
1. Set-up the scene using the ‘Manual’ control
function or a DMX controller.
2. Select „Memory‟ using the ‘Mode’ button.
Using the ‘Up & Down’ Arrows select the required
memory number and press the ‘Enter’ button to confirm.
A ‘p’ should appear next to the memory to signify that it
has been programmed.
Holding both the ‘Up & Down’ Arrows for 1 second will
clear the selected memory. If these buttons are held for
5 seconds, ALL memories will be cleared.
Preheats:
Preheats can be selected on a per channel or all
channel basis. The preheat level is preset to 5% and
cannot be adjusted.
Select „Preheat‟ by cycling through the modes using
the ‘Mode’ button.
Select required channel or ‘A’ for all channels, using the
‘Up & Down’ Arrows and press ‘Enter’, to confirm.
Now select on/off using the ‘Up & Down’ Arrows. Press
‘Enter’ to confirm and return to the channel selection.
Output Laws:
Four output laws are available, which can be selected
per channel.
Select „Law’ mode using the ‘Mode’ button. Using the
‘Up & Down’ Arrows select the channel required, or ‘A’
for all channels. Press ‘Enter’ to confirm. Now select
the law you require, again using the ‘Up & Down’
Arrows and press ‘Enter’ to confirm and return to the
channel selection.
Output Law
Main Display
Normal
n
Switch
S
Linear
L
Invert
in
Note that the Invert law is different to the voltage
polarity option described below. The Invert law results
in the output being at full scale voltage (either positive
or negative) for a DMX input value of 0%, and 0V for a
DMX input value of 100%.
Polarity:
Each output socket can be set to positive or negative
voltage polarity.
Select „Polarity‟ mode using the ‘Mode’ button. Using
the ‘Up & Down’ Arrows select the socket required, or
‘A’ for all sockets. Press ‘Enter’ to confirm. Now select
the polarity („Pos‟ or „Neg‟) you require, again using the
‘Up & Down’ Arrows and press ‘Enter’ to confirm and
return to the socket selection.
Super User:
The Demux24 has a number of hidden functions,
located in the Super User Menu. The super user
menu’s can only be accessed from the Default mode
(No LEDs Lit). To enter Super User press and hold the
‘Up & Down’ Arrows together and press and hold the
‘Mode’ button for 5 seconds. All the mode LEDs will
flash to indicate the Demux24 is in super user mode.
The ‘Up & Down’ Arrows are used to cycle through the
various super user functions. Pressing the ‘Mode’
button at any point will revert to normal operation. If no
buttons are pressed after 20 seconds the Demux24 will
automatically revert to normal operation.
Lock/Unlock
Press the ‘Up & Down’ Arrows until the display shows
“LOC”. Press ‘Enter’ to confirm this action. The
Demux24 will revert to the Default mode. Pressing the
‘Mode’ button now will only cycle between Manual
Control and Default Mode.
If Super User is entered when the Demux24 is locked,
only the unlock function will be available. The display
will show “UNL”. To unlock the Demux24, press and
hold the ‘Enter’ button for 5 seconds. The Demux24 will
unlock and exit super user returning to the Default
mode.
DMX Termination:
Press the ‘Up & Down’ Arrows until the display shows
“ter”. If the Demux24 is terminated a dot will appear at
the bottom of the last segment. Pressing the ‘Enter’
button will toggle between the two states.
CAUTION
TO AVOID POSSIBLE DAMAGE TO EQUIPMENT,
TAKE CARE TO MATCH THE POLARITY SETTING
ON THE DEMUX24 TO THAT REQUIRED BY
CONNECTED EQUIPMENT.
DEMUX24 USER GUIDE
Zero88 Lighting Ltd, Usk House, Llantarnam Park, Cwmbran, Gwent NP44 3HD, U.K www.zero88.com
73-402-00 IM7752Demux24ManualIssue2.doc Page 3 of 3
Resetting The Demux24:
Press the ‘Up & Down’ Arrows until the display shows
“rset”. Press ‘Enter’ to confirm. The display will flash
briefly to confirm this action. The Demux24 will be reset
to its default settings, shown in the table below:
Set Up Parameter
State
Manual Control
Levels
All Off
DMX Addresses
Block patch at 001
DMX Fail Mode
Hold Last State
Memory
Memory Cleared
Preheat
Off (0%) for all
channels
Law
Normal law for all
channels
Polarity
Positive for all output
sockets
DMX termination
Disabled
Firmware Version:
To identify which version of firmware is loaded in the
Demux24, press the ‘Up & Down’ Arrows until the
firmware version is shown in the display (e.g. 01.02)
Press and hold the ‘Enter’ button for 1s, and the
Demux24’s CPU serial number will be displayed. Press
the ‘Enter’ button again to return to the version display.
Note that the firmware version will also be shown briefly
on start up.
Technical:
Electrical:
The Demux24 is designed to operate on the following
mains input specification. The Demux24 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 2.0: September 2006
© Zero 88 Lighting Ltd 2006
WARNING
DO NOT REMOVE COVERS WITHOUT FIRST
COMPLETELY DISCONNECTING THE
DEMUX24 FROM THE MAINS SUPPLY.
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