Zero88 DMX DeBug User manual

D
DM MX X D De eB Bu ug g
Zero 88 Lighting Ltd

Zero 88 Lighting Ltd. DMX DeBug Manual 2/ 32
ZERO 88 LIGHTING
PRODUCT
REGISTRATION FORM
Product: DMX DeBug Version No.
Serial No. Date Purchased:
Supplier:
Name:
Company Name:
Address:
Post/Zip Code: Phone No.
Comments:
Please return to: Zero 88 Lighting Ltd
Tel: [phone]
Fax: [phone]

Zero 88 Lighting Ltd. DMX DeBug Manual 3/ 32
DMX DEBUG
………………………………………………………………………………………...1
ZERO 88 PRODUCT REGISTRATION FORM....................................................................2
CONTENTS........................................................................................................................3
INTRODUCTION.................................................................................................................5
QUICK START ....................................................................................................................5
DMX DEBUG FEATURES.....................................................................................................5
WHAT’S NEW IN DMX DEBUG .............................................................................................6
THE CONTROL SURFACE ................................................................................................7
OVERVIEW ........................................................................................................................7
MENU..............................................................................................................................7
TOGGLE! ...........................................................................................................................7
LEFT RIGHT....................................................................................................................7
UP DOWN.......................................................................................................................7
MENUS............................................................................................................................8
THE MENUS.......................................................................................................................8
DISPLAYING RECEIVED DMX512..................................................................................8
STATUS.......................................................................................................................9
DMX BASE...................................................................................................................9
DISPLAY MODE..............................................................................................................9
D................................................................................................................................10
%................................................................................................................................10
$.................................................................................................................................10
B................................................................................................................................10
DATA RECEIVED..........................................................................................................10
DATA ERROR...............................................................................................................11
H................................................................................................................................11
F.................................................................................................................................11
O................................................................................................................................11
T.................................................................................................................................11
LOOP THROUGH..........................................................................................................11
MAX/MIN MODE............................................................................................................11
FLICKER HUNT.............................................................................................................11
DETAIL MODE ..............................................................................................................11
TRIGGER OUTPUT ...................................................................................................12
TRANSMIT RIG CHECK................................................................................................12
TRANSMIT PRESET.....................................................................................................13
TRANSMIT LAMP..........................................................................................................14
TRANSMIT DYNAMIC DMX512.....................................................................................15
SNAPSHOT DMX TO PRESET .....................................................................................15
FILL PRESET WITH PATTERN.....................................................................................16
TESTING CABLES........................................................................................................17
DOUBLE ENDED CABLE TEST.................................................................................17
CONTENTS

Zero 88 Lighting Ltd. DMX DeBug Manual 4/ 32
SINGLE ENDED CABLE TEST ..................................................................................17
AUTO BACKUP IF DMX FAILS .....................................................................................18
LOOP THROUGH..........................................................................................................18
DISPLAYING RECEIVED MIDI......................................................................................19
THE SETUP MENUS........................................................................................................20
SETUP MENU...............................................................................................................20
ENABLE BACKLIGHT (S1)............................................................................................21
POWER SAVING (S2)...................................................................................................21
DARK CHANNEL (S3) ...................................................................................................21
SELECT DMX START CODE (S4).................................................................................21
TALK TO MIC-EDIT (S5) ...............................................................................................24
EXTERNAL CONNECTIONS............................................................................................25
POWER SUPPLY..........................................................................................................25
Connector...................................................................................................................25
RECEIVE DMX..............................................................................................................25
MIDI ADAPTER WIRING............................................................................................25
TRANSMIT DMX...............................................................................................................26
CONVERSION TABLES...................................................................................................27
INDEX...............................................................................................................................30

Zero 88 Lighting Ltd. DMX DeBug Manual 5/ 32
QUICK
START Welcome to the DMX DeBug manual. DMX DeBug is a sophisticated
DMX512 and MIDI analyser, but is remarkably simple to operate.
Users who are familiar with either DMX512 or MIDI should find that a
scan of the Control Surface section is sufficient to get started.
Please remember to return your product registration card, so that
we can keep you informed of new developments.
DMX DEBUG
FEATURES
DMX DeBug provides the following features:
•Receives DMX512 & MIDI Display as bar chart, decimal,
percentage or hexadecimal
•Display update rate, number of channels, Break and MaB time
•Display maximum, minimum and current value of a single
channel
•Double and single ended cable test
•Generate DMX512 or re-transmit buffered DMX512 or MIDI
•Fifteen Preset memories with snapshot
•Automatic Moving Lamp test
•Auto-backup, transmits Preset if console fails.
•PC Link to Mic-Edit Software
INTRODUCTION

Zero 88 Lighting Ltd. DMX DeBug Manual 6/ 32
WHAT’S NEW
IN DMX DEBUG
A range of powerful new features has been added to DMX DeBug.
1. A number of existing features and new options have been added to
the new setup menu. The setup menu is activated by switching on
DMX DeBug with the MENU key held down. When the setup menu is
active, the menu number displayed in the bottom right of the lcd
screen is prefixed with ‘s’.
The setup menu provides access to:
•External Power Monitor
•Firmware Version Number
•Backlight Enable/Disable Status
•Power Saving Enable/Disable Status
•Dark Channel Level
•DMX Start Code
•Communication with Mic-Edit
2. The Moving Lamp Library has been expanded:
•Total capacity of 192 fixtures.
•Each Moving Lamp can now test up to 36 channel attributes.
•Moving Lamp definitions can be edited using the PC software
Mic-Edit.
•New ‘Pan & Tilt’ test allows the DMX DeBug cursor keys to
control pan and tilt for manual focusing.
•New ‘All’ test steps through each attribute test in sequence.
•The ramp speed of the automated tests can now be
controlled.
3. The Dark Level feature has been added, this allows the channels that
would normally be at zero in the ‘Rig Check’ or ‘Transmit Dynamic’
modes to be set to a level. This is effectively a pre-heat function and
can significantly improve lamp life, as the lamp filaments are kept
warm during rig check.
4. A Power Save Disable option has been added which allows users to
ensure that DMX DeBug will continue transmitting at all times. This is
particularly useful when using DMX DeBug as a battery powered DMX
booster.
5. Communication to Mic-Edit, the optional PC Editor has been added.
Mic-Edit provides the following features:
•Edit up to 192 lamp personalities. (Over 120 pre-programmed
entries are supplied with the software).
•Control the lamp personalities displayed by DMX DeBug.
•Save custom setups to disc allowing users to reprogram DMX
DeBug with the information needed for a specific show.
•Edit all 15 Presets.
•Drag and Drop lamps onto presets to generate custom test
patterns.
•Control setup parameters such as Start Code, Power Save.
•Enter a User Name that DMX DeBug will display at start up
and power save.

Zero 88 Lighting Ltd. DMX DeBug Manual 7/ 32
OVERVIEW The six front panel buttons operate DMX DeBug. The buttons function
as follows:
MENU
The MENU key is used to select the operating mode of DMX DeBug.
Pressing MENU once will display the currently selected mode. The
LEFT and RIGHT cursor keys are then used to select a new operating
mode. Pressing MENU a second time completes the process.
The MENU Key is held down whilst power is switched on to access the
Setup Menu
TOGGLE
When DMX DeBug is in DISPLAY RECEIVED DMX512, the TOGGLE
key is used to step through the different display formats (bar graph,
percent, decimal etc.).
In TRANSMIT mode, the TOGGLE key is used to invert the level of the
selected channel.
In TRANSMIT LAMP mode, the TOGGLE key selects each of the
automated tests in sequence.
LEFT RIGHT
When DMX DeBug is in DISPLAY RECEIVED DMX512, the LEFT and
RIGHT cursor keys are used to select a new base address.
In TRANSMIT DMX512 modes, the LEFT and RIGHT cursor keys are
used to select a new transmit channel.
If DMX DeBug is displaying the menu, the LEFT and RIGHT cursor keys
are used to select the next operating mode.
UP DOWN
The UP and DOWN cursor keys are used to increment or decrement the
level of the displayed data.
THE CONTROL
SURFACE

Zero 88 Lighting Ltd. DMX DeBug Manual 8/ 32
MENUS
Upon entering MENU mode, twelve different operating modes may be
selected (using the LEFT & RIGHT cursor keys). These are:
D
D
DI
I
IS
S
SP
P
PL
L
LA
A
AY
Y
Y R
R
RE
E
EC
C
CE
E
EI
I
IV
V
VE
E
ED
D
D
d
d
dm
m
mx
x
x5
5
51
1
12
2
2
1 Displays the DMX512 signal from any
console, in any of the six available
formats
T
T
TR
R
RA
A
AN
N
NS
S
SM
M
MI
I
IT
T
T
R
R
RI
I
IG
G
G C
C
CH
H
HE
E
EC
C
CK
K
K
2 2
2
Transmit DMX512. Only a single
channel on at a level. This is the basic
flash through rig mode.
T
T
TR
R
RA
A
AN
N
NS
S
SM
M
MI
I
IT
T
T P
P
PR
R
RE
E
ES
S
SE
E
ET
T
T
N
N
NU
U
UM
M
MB
B
BE
E
ER
R
R:
:
: 1
1
15
5
5 3
3
3
Transmit and edit one of 15 Presets.
Each Preset allows all 512 channels at
individual levels.
T
T
TR
R
RA
A
AN
N
NS
S
SM
M
MI
I
IT
T
T l
l
la
a
am
m
mp
p
p
v
v
va
a
ar
r
ri
i
i*
*
*l
l
li
i
it
t
te
e
e v
v
vl
l
l6
6
6 4
4
4
Automatically test any automated
luminaire from the library.
T
T
TR
R
RA
A
AN
N
NS
S
SM
M
MI
I
IT
T
T D
D
DY
Y
YN
N
NA
A
AM
M
MI
I
IC
C
C
d
d
dm
m
mx
x
x5
5
51
1
12
2
2 5
5
5
Transmit any range of channels at a
level or continuously ramping.
s
s
sn
n
na
a
ap
p
ps
s
sh
h
ho
o
ot
t
t d
d
dm
m
mx
x
x t
t
to
o
o
p
p
pr
r
re
e
es
s
se
e
et
t
t:
:
: 1
1
15
5
5 6
6
6
Copy received DMX to any of the 15
Presets. Used to create show backup or
record useful test patterns.
F
F
FI
I
IL
L
LL
L
L P
P
PR
R
RE
E
ES
S
SE
E
ET
T
T
W
W
WI
I
IT
T
TH
H
H P
P
PA
A
AT
T
TT
T
TE
E
ER
R
RN
N
N
7
7
7
Fill one of the 15 Presets with a
symmetrical pattern of channel levels.
d
d
do
o
ou
u
ub
b
bl
l
le
e
e e
e
en
n
nd
d
de
e
ed
d
d
c
c
ca
a
ab
b
bl
l
le
e
e t
t
te
e
es
s
st
t
t 8
8
8
Fully test all three pins of DMX512 or
MIDI cables for shorts and open
circuits.
S
S
SI
I
IN
N
NG
G
GL
L
LE
E
E E
E
EN
N
ND
D
DE
E
ED
D
D
C
C
CA
A
AB
B
BL
L
LE
E
E T
T
TE
E
ES
S
ST
T
T 9
9
9
Test the two signal pins of DMX512 or
MIDI cables for shorts, when only the
console cable end is available.
A
A
AU
U
UT
T
TO
O
OB
B
BA
A
AC
C
CK
K
KU
U
UP
P
P I
I
IF
F
F
D
D
DM
M
MX
X
X F
F
FA
A
AI
I
IL
L
LS
S
S 1
1
10
0
0
Allows DMX DeBug to connect in-line
between desk and dimmers. Switches
to a selected Preset if the desk fails.
B
B
BU
U
UF
F
FF
F
FE
E
ER
R
R D
D
DM
M
MX
X
X M
M
MI
I
ID
D
DI
I
I
E
E
EN
N
NA
A
AB
B
BL
L
LE
E
ED
D
D
1
1
11
1
1
Switch between the DMX512 output of
DMX DeBug and a regenerated
version of the received signal.
D
D
DI
I
IS
S
SP
P
PL
L
LA
A
AY
Y
Y R
R
RE
E
EC
C
CE
E
EI
I
IV
V
VE
E
ED
D
D
M
M
MI
I
ID
D
DI
I
I
1
1
12
2
2
Display MIDI data characters in
hexadecimal form.
DISPLAYING
RECEIVED
DMX512
In DISPLAY RECEIVED DMX512 mode the following keys are active:
•LEFT Decrement the current DMX512 start address
•RIGHTIncrement the current DMX512 start address
•TOGGLE Select the display format
Received DMX512 data is displayed in one of seven formats. They
are:
•Bar Graph
•Decimal
THE MENUS

Zero 88 Lighting Ltd. DMX DeBug Manual 9/ 32
•Percent
•Hex
•Binary
•Max/Min & Flicker Hunt
•Detail
STATUS
The first five display formats also include the following information:
1. DMX512 base address
2. Display mode
3. Data received indicator
4. Data error indicator
5. Loop-Through indicator
The diagram below shows DMX DeBug receiving DMX512 in bar
graph mode.
DMX BASE
The DMX base address is in the range 1 to 512 and defines the first
channel displayed. This value is also used to set the TRIGGER
OUTPUT.
DISPLAY
MODE
This character shows the currently selected display mode:
Bar-graph mode displays twenty four channels as a bar-graph with a
resolution of 12.5%. Whilst the resolution of this mode is limited, it is
often the most useful when the DMX line is running show information.
It is easy to pick out chases, which in other display modes could be
mistaken for flickering data.
1. DMX512 Base
2. Display Mode
3. Data Received
4. Data Error
5. Loop Through

Zero 88 Lighting Ltd. DMX DeBug Manual 10 / 32
DDecimal mode displays six channels as numbers in the range 0 to 255.
This mode shows the entire resolution of each channel. It is most
useful when dealing with moving lights and colour changers.
%Percent mode displays six channels as numbers in the range 0 to 100.
This mode provides the most familiar numbering system.
$Hexadecimal mode displays six channels as numbers in the range 00
to FF. This mode is most useful when working with DMX devices such
as relay boxes and smoke machines, which use bit control. See
Appendix for conversion tables.
BBinary mode displays two channels as both binary and hexadecimal.
This mode is most useful for electronic designers and engineers when
solving complex electronic problems such as a damaged data bus.
DATA
RECEIVED
This character cell displays a tilde to show that data is being received.
The data is not necessarily valid DMX512.

Zero 88 Lighting Ltd. DMX DeBug Manual 11 / 32
0
0
00
0
01
1
1 C
C
CU
U
UR
R
R 1
1
15
5
54
4
4
M
M
MI
I
IN
N
N 1
1
15
5
53
3
3 M
M
MA
A
AX
X
X 1
1
15
5
55
5
5
f
f
fl
l
li
i
ic
c
ck
k
ke
e
er
r
r h
h
hu
u
un
n
nt
t
t $
$
$0
0
01
1
1
c
c
cu
u
ur
r
rr
r
re
e
en
n
nt
t
t c
c
ch
h
ha
a
an
n
n:
:
: 0
0
01
1
12
2
2
p
p
p=
=
=0
0
02
2
23
3
3m
m
ms
s
s b
b
bk
k
k=
=
=1
1
15
5
50
0
0u
u
us
s
s
C
C
C=
=
=5
5
51
1
12
2
2 M
M
MA
A
AB
B
B=
=
=0
0
01
1
12
2
2u
u
us
s
s
DATA ERROR
This character cell is clear when good data is being received. If
an error occurs, one of the following is displayed:
HDMX512 is being received with a non-matching Header or start code.
FData is being received with Framing errors. This can be caused by
noise pick-up and also occurs when the phase pins of the connector
are reversed.
OData is being received with Overrun errors. This can be caused by
noise pick-up and also occurs when a phase pin is disconnected.
TThe received data is outside the DMX512 Timing specification. This
display occurs when either the number of channels per frame exceeds
512, or the Break time is less than 88uS, or the MaB time is less than
4uS.
LOOP
THROUGH
This character cell displays 'L' when DMX DeBug's output is providing
a clean and buffered version of the incoming DMX512. When the
character cell is clear, DMX DeBug's DMX512 generator is connected
to the output.
MAX/MIN
MODE
Max/Min mode is the "Flicker Finder". A single DMX512 channel is
displayed as the current value, minimum value and maximum value.
All three numbers are decimal 0 to 255.
This mode will capture any fluctuations in the level of a channel.
To clear the Max and Min values,
press the MENU key twice. When
data is not received on the
selected channels, the Max value
is set to 0, and the Min value to
255.
FLICKER
HUNT
The UP & DOWN cursor keys are
used to start the automatic ‘Flicker
Hunt’ mode. In this mode DMX
DeBug analyses the level of each
channel in thirty consecutive frames of DMX512. Any level which has
varied outside the flicker band causes the hunt to stop and the display
reverts to MAX/MIN mode, displaying the erroneous channel data. The
DOWN cursor key cycles though the range of flicker band values
between $01 and $3f. When the flicker band is set to $01, a single bit
fluctuation in the level of a single channel will cause the display to
revert to MAX/MIN mode.
DETAIL
MODE
Detail mode provides four further pieces of information about the DMX
signal.
The Period "P" is the time between received Breaks on the DMX512
signal. The reciprocal of this number gives the refresh rate. The
second number is the Break time
"Bk". This is the length of the
synchronising code used to restart
a new DMX frame. The
specification requires this value to be 88uS or greater. If this is not the
case, the timing error icon "T" will be displayed in the main receive

Zero 88 Lighting Ltd. DMX DeBug Manual 12 / 32
C
C
CH
H
HA
A
AN
N
N:
:
: 0
0
00
0
01
1
1 @
@
@ 1
1
10
0
00
0
0%
%
%
R
R
RI
I
IG
G
G C
C
CH
H
HE
E
EC
C
CK
K
K
window.
The third number "C" represents the number of dimmer channels
received in the last DMX packet. This number should be constant,
although the value may be less than 512, depending on the type of
console used.
The fourth number is the Mark after Break time "MaB". This is the
delay between the end of a Break and transmission of the header
code. The specification requires a MaB of 4us or greater. If this is not
the case, the timing error icon "T" will be displayed in the main receive
window. (The MaB limit was increased to 8uS in the DMX512 1990
Revision).
TRIGGER
OUTPUT
The spare two pins of the DMX512 output are used to provide a TTL
(5V) oscilloscope trigger output. This signal can be used to
synchronise the oscilloscope to either the falling edge of the break or
the DMX base address.
TRANSMIT
RIG CHECK
The TRANSMIT RIG CHECK
menu allows any single
dimmer channel to be
switched on at a level.
The following keys are active:
•LEFT Decrement the dimmer channel
•RIGHT Increment the dimmer channel
•UP Increment the dimmer level
•DOWN Decrement the dimmer level
•TOGGLE Invert dimmer level
The display shows the current dimmer channel, followed by its level as
a percentage.
The DMX512 output continues when DMX DeBug is in Receive mode.
45.2uS
52.8uS
TRIGGE
DMX512
BREAK
Start bit goes low
DIMMER n

Zero 88 Lighting Ltd. DMX DeBug Manual 13 / 32
C
C
CH
H
HA
A
AN
N
NN
N
NE
E
EL
L
L 0
0
00
0
01
1
1 @
@
@ 1
1
10
0
00
0
0%
%
%
1
1
11
1
11
1
11
1
11
1
11
1
11
1
11
1
1 $
$
$F
F
FF
F
F 2
2
25
5
55
5
5
TRANSMIT
PRESET
The TRANSMIT PRESET
menu allows any one of the
fifteen Presets to be
transmitted to the dimmers
and also edited. Each Preset contains individual level settings for all
512 channels and is held in non volatile memory. The Preset to be
transmitted and edited is selected by the UP and DOWN keys when
the menu display is active. Press the MENU key to enter edit mode.
The following keys are active:
•LEFT Decrement the dimmer channel
•RIGHT Increment the dimmer channel
•UP Increment the dimmer level
•DOWN Decrement the dimmer level
•TOGGLE Invert dimmer level
All dimmer channel levels may be set individually. The display shows
the current dimmer channel, followed by its level in percent, binary,
hexadecimal and decimal.
The DMX512 output continues when DMX DeBug is in Receive mode.
The SNAPSHOT and FILL menus are alternative methods of
programming the Presets.

Zero 88 Lighting Ltd. DMX DeBug Manual 14 / 32
L
L
LA
A
AM
M
MP
P
P 0
0
00
0
01
1
1-
-
-0
0
00
0
07
7
7 O
O
ON
N
N
V
V
VA
A
AR
R
RI
I
I*
*
*L
L
LI
I
IT
T
TE
E
E V
V
VL
L
L7
7
7
T
T
TR
R
RA
A
AN
N
NS
S
SM
M
MI
I
IT
T
T L
L
LA
A
AM
M
MP
P
P
V
V
VA
A
AR
R
RI
I
I*
*
*L
L
LI
I
IT
T
TE
E
E V
V
VL
L
L7
7
7
TRANSMIT
LAMP
The TRANSMIT LAMP menu
is the most powerful method of
testing automated luminaires.
DMX DeBug contains a library
of nearly 200 lamp definitions
which can be used to automatically test lamps.
When the menu is active, the UP & DOWN cursor keys are used to
select the required lamp from the library.
To accept the lamp selection
press
MENU. The display changes
to
show the start address of the
lamp, the current test and the selected lamp.
At this point the DMX output will command the selected lamp to point
to it’s centre position with the beam on at full white with no gobos.
The following keys are active:
•LEFT Decrement the start channel to the previous lamp
•RIGHT Increment the start channel to the next lamp
•UP Increment by one the start channel
•DOWN Decrement by one the start channel
•TOGGLE Select the next automatic test
The automatic tests consist of ramping the levels up then down
between defined values for the channels which relate to each lamp
attribute. The Speed at which the ramp operates can be defined in
Mic-Edit.
The automatic tests function as follows:
Name Function
On Point lamp at centre of Pan & Tilt range with a full power
white beam.
Int Ramp up and down the lamp intensity. If a dimmer exists
in the lamp it is used, otherwise the mechanical shutter is
used.
Pan Pan the beam from one extent to the other
Tilt Tilt the beam from one extent to the other.
P&T Pan & Tilt the beam from one extent, diagonally to the
other.
<PT> Pan & Tilt are controlled by the cursor keys. This is
particularly useful for manually focussing a moving lamp.

Zero 88 Lighting Ltd. DMX DeBug Manual 15 / 32
C
C
CH
H
HA
A
AN
N
N:
:
: 0
0
00
0
01
1
1 -
-
- 5
5
51
1
12
2
2
@
@
@1
1
10
0
00
0
0%
%
%
S
S
SN
N
NA
A
AP
P
PS
S
SH
H
HO
O
OT
T
T D
D
DM
M
MX
X
X T
T
TO
O
O
P
P
PR
R
RE
E
ES
S
SE
E
ET
T
T:
:
: 1
1
15
5
5
D
D
DM
M
MX
X
X R
R
RE
E
EC
C
CO
O
OR
R
RD
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ED
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:
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1
15
5
5
Name Function
COL 1-7Exercise the colours available. This tests up to seven
colour attribute channels of the lamp. Depending on the
lamp type, the order will be either:
RED BLUE GREEN COLOUR-WHEEL 1-4 or
YELLOW MAGENTA CYAN COLOUR-WHEEL 1-4
GOB 1-7Run through all the available gobos.
STRB Test the Strobe effects.
ZOOM Test the Zoom.
FOCS Test the Focus.
IRIS Test the Iris.
PRIS Test the Prism.
EFFX Test the Effects.
AUX 1-7Test a further seven attributes as defined in the lamp
library.
ALL Run all of the tests listed above in sequence. When the
ALL test is running ,the display alternates between ‘ALL’
and the current attribute.
The DMX512 output continues when DMX DeBug is in Receive mode.
You can download a copy of Mic-Edit from our web site to inspect the
detailed channel allocations for each moving lamp.
TRANSMIT
DYNAMIC
DMX512
The TRANSMIT DYNAMIC
DMX512 selection allows any
range of dimmer channels to
be switched on at a level, or
ramp continuously.The following keys are active:
•LEFT Decrement the end dimmer channel
•RIGHTIncrement the end dimmer channel
•UP Increment the start dimmer channel
•DOWN Decrement the start dimmer channel
•TOGGLE Stop or Start the channels ramping
Any range of dimmers can be controlled. The display shows the start
and end dimmer channel, followed by the current percentage level.
The level ramp requires ten seconds to increment from zero to full and
then decrement back to zero.
If the end channel is set to a lower value than the start channel, all
output channels are set to zero.
The DMX512 output continues when DMX DeBug is in Receive mode.
SNAPSHOT
DMX TO
PRESET
The SNAPSHOT menu allows
any one of the fifteen Presets
to be filled with data captured
from the DMX512 input. The
Preset to be used is selected

Zero 88 Lighting Ltd. DMX DeBug Manual 16 / 32
F
F
FI
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LL
L
L P
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N
N
by the UP and DOWN keys when the menu display is active. Press the
MENU key to take the snapshot. The process requires eight
consecutive frames of DMX512 to capture the data. The snapshot can
be aborted (for example if the DMX512 input fails) by pressing the
TOGGLE button.
When the data has been successfully captured, the display shows:
FILL PRESET
WITH
PATTERN
The FILL menu allows any one of the fifteen Presets to be filled with a
symmetrical pattern of
channel levels.
The following keys are active:
•LEFT Select one of the pre-defined patterns
•RIGHT Select one of the pre-defined patterns
•UP Increment the Preset number
•DOWN Decrement the Preset number
•TOGGLE Execute the Fill
Fill patterns are selected from the following list:
Name Function
ALL CHAN OFF Clear the Preset
ALL CHAN HALF Set all channels to 50%
ALL CHAN ON Set all channels to 100%
ODD CHAN ON Set all odd channels (1,3,5..511) to 100%
EVEN CHAN ON Set all even channels (2,4,6..512) to 100%
RAMP UP Set incrementing ramp from channel 1 to 256 and
257 to 512
RAMP DOWN RAMP DOWN Set decrementing ramp from
channel 1 to 256 and 257 to 512

Zero 88 Lighting Ltd. DMX DeBug Manual 17 / 32
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TESTING
CABLES
DMX DeBug offers two methods of testing DMX512 cables.
The DOUBLE ENDED TEST is used when both ends of the cable are
available. DMX DeBug can test for short circuits and open circuits on
any of the three active pins of the DMX512 cable.
The SINGLE ENDED TEST is used when only the console cable end
is accessible. DMX DeBug can test for a short circuit between the two
signal pins.
DOUBLE ENDED
CABLE TEST
The DOUBLE ENDED TEST display shows the connectivity of each of
the three active pins of the DMX512 or MIDI cable. An OPEN
CIRCUIT is shown by a period,
and a SHORT CIRCUIT is
shown by the pin number. The
diagram below shows a correct
DMX512 cable.
The diagram below shows a
DMX512 cable with pins 2 & 3
swapped.
SINGLE ENDED
CABLE TEST
The SINGLE ENDED TEST display shows the short circuit status of
pins 2 and 3 of the DMX512 output connector. The display will show
the following when there is a connection between pins 2 & 3.
This test can be used to test
for short circuit in the cable or
to confirm that the cable is
properly terminated.

Zero 88 Lighting Ltd. DMX DeBug Manual 18 / 32
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A
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AUTO
BACKUP IF
DMX FAILS
The AUTO-BACKUP menu allows DMX DeBug to be connected in-line
between a lighting desk and dimmers. DMX DeBug monitors the
received DMX512 and should the signal fail, switches one of the fifteen
Presets to the output.
This mode provides a useful
backup, which forces a known
look on stage, should the console fail. When the backup mode is
triggered, the user can snap between the presets.
When the menu is entered, the
following display is shown
and received DMX512 is
looped to the output. The UP
and DOWN keys are used to select the Preset that will be output
should the received DMX512 fail.
If the DMX fails, the following display is shown and the selected Preset
is output to the dimmers. When the problem with the received
DMX512 has been corrected, simply press MENU twice to reset
AUTO-BACKUP mode.
When AUTO-BACKUP is
active, the UP and DOWN
keys are used to snap between
consecutive Presets.
LOOP
THROUGH
The BUFFER DMX/MIDI option is used to select between DMX
DeBug's Generator output and
a buffered copy of the
incoming DMX512 signal.
The Loop Through mode is selected by pressing the TOGGLE key
when the menu is displayed. The BUFFER mode of operation allows
DMX DeBug to be used as a signal booster for long DMX512 or MIDI
cables.
BUFFER mode is switched off when the Generator Menu is next
selected. When BUFFER mode is active, “L” is shown in the receive
window to denote “Loop Through”.

Zero 88 Lighting Ltd. DMX DeBug Manual 19 / 32
DISPLAYING
RECEIVED
MIDI
DISPLAY RECEIVED MIDI shows six MIDI characters in hexadecimal
format. The external MIDI adapter cables are required to use this
mode. The TOGGLE key is used to freeze the data display. The
following diagram shows the screen layout.
Loop Through may also be used with MIDI. The output circuitry used
by DMX DeBug is RS485 compatible. Whilst this is correct for
DMX512, MIDI specifies a simpler and less expensive set of circuitry.
However, the two sets of circuitry are compatible and the circuitry used
by DMX DeBug overcomes the very short cable limitation usually
encountered with MIDI.
The MIDI input of DMX DeBug is opto-isolated.
Most recent character
Hexadecimal Mode
Data Received
Data Error
Loop Through
Least recent character

Zero 88 Lighting Ltd. DMX DeBug Manual 20 / 32
SETUP MENU The Setup Menu is entered by powering on DMX DeBug whilst holding
down the MENU key. Five different operating modes may be selected.
These are:
B
B
BA
A
AC
C
CK
K
KL
L
LI
I
IG
G
GH
H
HT
T
T I
I
IS
S
S
E
E
EN
N
NA
A
AB
B
BL
L
LE
E
ED
D
D
S1 Allows the LCD backlight to be
enabled or disabled.
P
P
PO
O
OW
W
WE
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ER
R
R S
S
SA
A
AV
V
VI
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NG
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G
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SA
A
AB
B
BL
L
LE
E
ED
D
D
S
S
S2
2
2
Power Save option can be disabled to
ensure that DMX DeBug always
transmits DMX512.
S
S
SE
E
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L
LE
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EC
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T D
D
DA
A
AR
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RK
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VE
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EL
L
L:
:
:0
0
00
0
00
0
0
S
S
S3
3
3
Set the level of transmitted DMX
channels that are at zero. This is the
lamp preheat function.
S
S
SE
E
EL
L
LE
E
EC
C
CT
T
T D
D
DM
M
MX
X
X
C
C
CO
O
OD
D
DE
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E:
:
: 0
0
00
0
00
0
0
S
S
S4
4
4
Sets the DMX512 Start Code for both
transmit and receive.
T
T
TA
A
AL
L
LK
K
K T
T
TO
O
O
M
M
MI
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IC
C
C-
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-E
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ED
D
DI
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IT
T
T
S
S
S5
5
5
Starts communication with the PC
program Mic-Edit.
THE SETUP MENUS