Techni-Lux UltraLED Series DL-BAR10TC24 User Manual

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Information specifically for:

DL-BAR10TC24

v1.0

This manual contains important information.

Please read before operating fixture.

IMPORTANT INFORMATION

Save original packing and documentation for warranty, service and return issues

Limited Warranty: This warranty covers defects or malfunctions in this equipment. This warranty lasts for
a period of one year from date of purchase.  It is the owner’s responsibility to provide invoices for proof of
purchase, purchase date and dealer or distributor. If purchase date can not be provided, warranty period
will start at manufacture date.  It is the sole discretion of Techni-Lux to repair or replace parts or
equipment. All shipping will be paid by purchaser. This warranty does not cover lamps, fuses, belts,
power semiconductors, relays, cleaning, standard maintenance adjustments or normal wear items or any
problem resulting from the following: improper wiring, incorrect voltage (including low or over voltage
conditions and lightning), abuse, misuse, improper maintenance or an act of God or damage resulting
from shipping.  Warranty will be null and void if the product is altered, modified, misused, damaged, or
subjected to unauthorized repairs. Lamps are covered by relevant manufacturer warranty. This warranty
gives you specific legal rights, and you may also have other rights which vary from state to state. Any
liability for consequential and incidental damages is expressly disclaimed.  No other warranty, expressed
or implied is made. Techni-Lux liability in all events is limited to, and shall not exceed, the purchase
price paid.

Returning equipment and Repairs: All returns must be accompanied by a Return Merchandise
Authorization (RMA) number and sent pre-paid. Contact the dealer or Techni-Lux directly to obtain an
RMA. The RMA number must be clearly listed on the shipping label. Due care must be exercised in
packing all merchandise to be returned.  All repairs must be accompanied by a written explanation of the
claimed problem or error encountered. Techni-Lux is solely responsible for determining a product’s
eligibility for coverage under warranty.  If returning for consideration of credit, all accessories and
documentation, original protective material and cartons must be included and the equipment, packing
and carton must be in new resalable condition. Credit for returned merchandise will be issued at the
lowest current price and is subject to a restocking fee. No returns accepted on discontinued items.
Techni-Lux is not responsible for merchandise damaged in transit and reserves the right to refuse any
return that is damaged by the carrier, not accompanied by a Return Authorization Number (RMA#) or
sent by freight collect.

Claims:  All claims must be made within seven (7) days of receipt of merchandise. Any physical damage
must be reported to carrier upon receipt of merchandise.

Please record the following information for future reference:
Model Number (circle):

DL-BAR10TC24

Serial Number: ________________________________________

Dealer: ______________________________________________

Date of Purchase: ______________________________________

www.Techni-Lux.com

Table of Contents

Specifications .............................................................................................................................4

Unpacking ...................................................................................................................................5

Power...........................................................................................................................................5

Mounting .....................................................................................................................................5

Basic Reference..........................................................................................................................6

Setup and Operation Modes (LCD Display)..............................................................................6

Control Panel Menu & Operation Settings ................................................................................6

Built-in Program Chase Operation (P01-P14) ...........................................................................7

Auto Run Operation ..................................................................................................................7

Slave Operation ........................................................................................................................8

Sound Active Operation ............................................................................................................8

DMX Operation .........................................................................................................................8

DMX-512 Control.........................................................................................................................8

DMX Data Connection ..............................................................................................................9

Data Terminator ........................................................................................................................9

Adapter 5-to-3 pin .....................................................................................................................9

DMX Start Address .................................................................................................................10

DMX Channel Assignments .....................................................................................................10

6 Channel Mode......................................................................................................................11

9 Channel Mode......................................................................................................................12

15 Channel Mode....................................................................................................................12

24 Channel Mode....................................................................................................................12

27 Channel Mode....................................................................................................................12

Maintenance ..............................................................................................................................12

Accessory Items (sold separately)..........................................................................................13

Troubleshooting .......................................................................................................................13

DMX-512 Background...............................................................................................................14

Specifications

Fixture Overview

•

3 watt tri-chromatic RGB color mixing LED elements

•

24 TriLEDs divided into 8 sections of 3

•

Beam Angle – 25°

•

Rugged Aluminum Housing

•

Operating modes: DMX, Auto Run, Chases, Sound Active, Master/Slave

•

Precise DMX control using 6, 9, 15, 24, or 27 channels

•

3 Pin XLR DMX connectors

•

14 Built-in programs

•

Digital LCD display menu for settings

•

2 Types of mounting brackets included

•

Quiet

operation

Physical

Color

Black

Size

41” x 5.9” x 6.3”

Weight

13.2 lbs (6.0 kgs)

Housing Material

Aluminum

Environmental

Location

Indoor

Max.

ambient

temperature

113°F

(45°C)

Min. distance to flammable surface

3.3ft (1m)

Min. distance to illuminated surface

1ft (0.3m)

Electrical

Voltage

Automatically adjusting from 100 to 240vAC, 50-60Hz

Rated

Power

100W

Fuses

2 amp mini size: 5x20mm

Control

Digital Protocol

USITT DMX512 (1990)

Channels

6, 9, 15, 24 or 27 maximum

Data I/O

3 Pin XLR (Cannon)

Modes DMX512

Stand-Alone

Optics

Light Source

24 RGB 3 watt LEDS (3 x 1 watt) at 700ma

Beam

Angle

25°

Rigging

Orientation

Any

Mounting Points

Side brackets or rear mount bracket, using 1/2” (13mm)
mounting holes

Unpacking

Immediately upon receipt, carefully unpack and inspect the fixture to verify that all parts are
present and have been received in good condition. If any parts appear damaged from shipping
or the shipping carton shows signs of mishandling, notify the shipper immediately. Retain
carton and all packing material for inspection. In the event that the merchandise is to be
returned, the original carton and packing must be used. The customer will be billed for a new
carton and packing if merchandise is received without the original carton and packing.

Claims

Physical damage must be reported to the Freight Carrier or Shipping Company upon
receipt of merchandise. Damage incurred in shipping is the responsibility of the Freight
Carrier or Shipping Company. It is the customer’s obligation in the event that
merchandise is received damaged, to notify the Freight Carrier or Shipping Company
immediately. All other claims not related to damage incurred during shipping must be
made to the Dealer or Distributor within 7 days of receiving merchandise.

Returns

Returned merchandise must be in the original packing with a Return Merchandise
Authorization number (RMA) clearly listed on the shipping label. Items sent by Freight
Collect or without a RMA number will be refused. Call your sales person and request a
RMA prior to shipping. Be prepared to provide the model number, serial number and
description of the nature of the return. Shipping damage resulting from inadequate
packaging is the customer’s responsibility. Customer will be charged additional shipping
charges to return products received in non original packing and or cartons.

Power

Do not apply power to the fixture until power source is verified.

For protection against electric shock, fixture must be connected to suitable earth ground.
Make sure fixture is disconnected from power mains before any service.

The mains voltage and frequency of this fixture is automatically set. The input voltage can range
from 100vAC to 240vAC 50/60Hz. The listed power rating is its average wattage under normal
conditions. All fixtures must be powered directly from a switched circuit. This fixture cannot be
run on a rheostat or dimmer circuit even if used solely for a 0% to 100% switching. Before
applying power to a fixture, check that the fixture’s input voltage matches the power source
voltage. Consult a qualified electrician if there are any concerns about proper connection to
power.

Mounting

Always consult a qualified professional when rigging. Consider access for routine maintenance
when selecting a mounting position. This fixture may be mounted in any position provided there
is adequate room for movement and ventilation. Mount the fixture securely using proper
hardware, clamps and a safety cables. This fixture features two types of mounting location
hardware. One set of mounting brackets bolts on to the two sides of the fixture with knobs. The
other bracket mounts directly onto the back of the unit. Choose the bracket that best allows you

to mount the unit and position it. Each bracket may
offer different benefits when floor standing, truss
mounting, wall or ceiling mounting. Always keep
cords out of the way, thus preventing any trip
hazards. Secure all cables properly. Do not mount
where the fixture will be exposed to rain, high
humidity, extreme temperature changes or restricted
ventilation. Do not obstruct any vents.

Basic Reference

Male

XLR

3-pin

Female

XLR

3-pin

Data Input

Digital LCD Display

Data Output

Menu Setting Buttons

Power Input & Fuse

Power Out

Setup and Operation Modes (LCD Display)

The following refers to the different modes that are available on this fixture via the LCD Control
Panel display. All functions are selectable from the display menu located at the back of the
fixture.

Control Panel Menu & Operation Settings

Use the fixture’s Control Panel to access the Control Menu. The MODE Key puts the
fixture in the settings menu itself. The UP/DOWN moves through the menu options and
allows the assignment of a value. The ENTER key is used to enter that option and
confirms the selection once the UP/DOWN is used to adjust the value. Settings are
stored and recalled on subsequent power cycles. R, G, B, refers to Red, Green and Blue
respectively. DMX and master/slave modes require data cables to be connected between
fixtures. Manual and some stand-alone modes do not require data cables for independent
use of the fixture.

Built-in Program Chase Operation (P01-P14)

A program is a sequence of different steps that will be called up one after another in a
continuous loop. With the DL-BAR10TC24 fixture, you can select up to 14 different
program chases. Each program is described in the table below.

To select a program:

Press the MODE button to select the internal PROGRAM Mode. Select the desired chase
from P01 to P14 using the UP/DOWN buttons. Press the ENTER button to select speed
and flash settings, respectively. You can select the desired values via the UP/DOWN
buttons. Speed is from slowest 00 to fastest at 99. Set strobe flashing from none at 00 to
fastest at 99. Press the ENTER button to confirm and to exit the STAND ALONE Mode.

Note:

Under programs P13 & P14, FLOW 8 and FLOW 9 there are 2 sub-

programs to choose from (C1, C2). Please press the ENTER button twice to reach
the sub-programs. The desired color combinations can be selected using the
UP/DOWN buttons.

P1 STATIC COLOR
BLACK-RGB Strobe 00-99

Blackout, Red-Yellow-Green-Cyan-Blue-Purple-White
Strobe speed adjustable.

P2 DREAM
Speed 00-99 Strobe 00-99

Seven color dreaming
Speed & Strobe adjustable

P3 METEOR
Speed 00-99 Strobe 00-99

Seven color flow
Speed & Strobe adjustable

P4 FADE
Speed 00-99 Strobe 00-99

Seven color fade
Speed & Strobe adjustable

P5 CHANGE
Speed 00-99 Strobe 00-99

Seven color change
Speed & Strobe adjustable

P6 FLOW 1
Speed 00-99 Strobe 00-99

Seven color chase in 1 direction
Speed & Strobe adjustable

P7 FLOW 2
Speed 00-99 Strobe 00-99

Seven color chase in 2 directions
Speed & Strobe adjustable

P8 FLOW 3
Speed 00-99 Strobe 00-99

Seven color relay chase in 1 direction
Speed & Strobe adjustable

P9 FLOW 4
Speed 00-99 Strobe 00-99

Seven color relay chase in 2 direction
Speed & Strobe adjustable

P10 FLOW 5
Speed 00-99 Strobe 00-99

Seven color chase from two sides to middle
Speed & Strobe adjustable

P11 FLOW 6
Speed 00-99 Strobe 00-99

Seven color chase from middle to two sides
Speed & Strobe adjustable

P12 FLOW 7
Speed 00-99 Strobe 00-99

Seven color chase
Speed & Strobe adjustable

P13 FLOW 8
Speed 00-99 Strobe 00-99
1.BLACK-RGB 2. BLACK-RGB

Two color chase in 1 direction
Speed & Strobe adjustable
Blackout-Red-Yellow-Green-Cyan-Blue-Purple-White

P14 FLOW 9
Speed 00-99 Strobe 00-99
1.BLACK-RGB 2. BLACK-RGB

Two color chase in 2 directions
Speed & Strobe adjustable
Blackout-Red-Yellow-Green-Cyan-Blue-Purple-White

Auto Run Operation

In Auto Mode the programs are called up automatically in a continuous loop.
Press the MODE button to select the AUTO Mode. Press the ENTER button to select the
desired frequency of the loops. The desired frequency of the loops (Frequency = FQN
01-99) can be selected using the UP/DOWN buttons. Please press the ENTER button to
confirm and to exit the AUTO Mode.

Slave Operation

The master/slave operation enables that several LED bars can be synchronized and
controlled by one master device. For slave operation to function, XLR data cables must
be used to connect fixtures together. To set this mode, press the MODE button to select
the SLAVE mode. Any devices set in this manner can now be controlled by the master
unit. Press the ENTER button to confirm and to exit the SLAVE Mode.

Sound Active Operation

Press MODE button until you reach the SOUND controlling mode, then the fixture will
respond to the sound of audio. Press UP/DOWN to adjust the sound sensitivity levels
(SENS00-31) & frequency (FQN01-99) of loops. Press the ENTER button to select the
desired sensitivity and frequency of the loops, respectively. Press the ENTER button
again to confirm and to exit the SOUND Mode.

DMX Operation

The DMX operation mode allows you to control the bar using a standard DMX controller.
In this mode you set the start address at which the fixture will respond to the controller
on. Also the channel assignment mode to be used is set here. To address simply press
the MODE button until the display shows DMX MODE. Press the ENTER button and the
display shows: 001. Set the desired address using the UP/DOWN buttons. Please press
the ENTER button again to confirm and to select a DMX Channel Mode. After having set
the desired address and pressed ENTER, you can now choose a DMX Channel Mode
from 6, 9, 15, 24, and 27. Set the desired mode using the UP/DOWN buttons. Press the
ENTER button again to confirm and to exit the DMX Mode.

Note:

The following DMX-512 Control section explains how to select a DMX start

address for your fixture. It also covers connecting data cables, proper termination,
specific channel assignments and channel value tables.

DMX-512 Control

Fixtures require a "Start Address" from 1 to 512, setting the first DMX channel containing data
for the fixture (see DMX Background). Before addressing fixtures, consult the manual of the
system’s DMX controller to select a desirable addressing scheme.  Valid Start Addresses range
from 1 to 512. Fixtures requiring more than one channel for control will read subsequent
channels up to the total number of channels required. Since this fixture requires 6 channels of
DMX, if set to a Start Address of 7 it would use data from channels: 7 and 8, 9, 10, 11, 12.
Choose a Start Address so the channels used DO NOT overlap with other fixtures. In some
cases, it may be desirable to set two or more same type fixtures to the same Start Address. In
this case, the fixtures will be slaved together and respond to the same data. Because all
fixtures see the same data, fixtures may be set to any address without concern for the order
they are connected by the DMX cables.

DMX Data Connection

This fixture uses 3 pin XLR type connectors and shielded twisted pair cable approved for
EIA-422/EIA485 use. Fixtures are connected in Daisy Chain topography: Connection is
made from the controller to the DMX-IN of the first light, then from the DMX-OUT to the
DMX-IN of the next light and so on. Only one data source can be on a chain and no
branching is allowed. The physical order in which the fixtures are connected is not
important, use the most convenient.

DMX-OUT

1
2
3

- Ground

- Signal (-)
- Signal (+)

XLR Connector - Socket:

DMX-IN

1
2
3

- Ground
- Signal (-)
- Signal (+)

XLR Connector - Plug:

Data Terminator

A Data Terminator can be connected to the DMX-OUT of the
last fixture to reduce the effects of signal noise; it is not required
for all installations. To make a Terminator, connect a 120-ohm
¼ watt resistor across pin 2, Data Negative (S-) and pin 3, Data
positive (S+). Whether it is a 5 pin XLR or 3 pin XLR connector
(shown on right) does not matter, the pin numbers remain the
same. A qualified technician can determine if a Data Terminator
is needed.

Adapter

5-to-3 pin

Systems using 5 pin DMX interfaces can be accommodated by purchasing 3-to-5 pin
adapters or building adapter cables. Numbers designating each pin can be found on
connectors. Converting between the two XLR types is done in a pin-to-pin fashion.
Connect the shields to pin 1, then connect pin 2 to pin 2 and pin 3 to pin 3, regardless of
either connector’s gender or pin count. No connection is made to Pins 4 & 5.

5 Pin XLR (Plug)
Pin 1: GND(Sheild)
Pin 2: Signal(-)
Pin 3: Signal(+)
Pin 4: N/C
Pin 5: N/C

3 XLR

)

Pin 1: GND(Sheild)
Pin 2: Signal(-)
Pin 3: Signal(+)

Pin ocket

5 Pin XLR (Socket)
Pin 1: GND(Sheild)
Pin 2: Signal(-)
Pin 3: Signal(+)
Pin 4: N/C
Pin 5: N/C

XLR (Plug)

Pin 1: GND(Sheild)
Pin 2: Signal(-)
Pin 3: Signal(+)

DMX Start Address

To place the fixture in DMX mode, press the MODE key, then using the UP/DOWN keys
get to the Address Menu Option. Press ENTER and using the UP/DOWN buttons, set the
start address number for this particular unit in the DMX chain. Once selected, press
ENTER again to save your selection. More than one fixture may have the same start
address, but they will behave the same. Giving a unique start address that does not
overlap with any other units allows you to individually control that fixture’s features fully.
Never allow channels to overlap. You will need to select the number of channels you
wish the fixture to use first. Your choices are 6, 9, 15, 24 or 27 channel modes. This will
determine the spacing of channels you will need to avoid overlapping of channels when
selecting your start addresses.

Example

Select Start Addresses for 4 fixtures each requiring 6 channels of DMX (6

channel mode).

For this example, start with the first unit set to the first possible Start Address =

. This fixture

occupies DMX channels 1 thru 6. The next DMX channel available for a Start Address is found
by adding the previous fixture’s Start Address to its channel requirement: 1+6=

. To maximize

channel usage, we will leave no empty channels between fixtures so the second Start Address is
set to DMX channel 7 and that fixture occupies channels 7 thru 12. The third fixture will be
addressed 7+6=

and occupy channels 13 thru 18. The last fixture is addressed 13+6=

and

will occupy channels 19 thru 24. Thus, 4 fixtures using 6 channels each have Start Addresses of

1, 7, 13

and

and the next free channel in the system is 19+6=25.

DMX Channel Assignments

This fixture features 5 different DMX Channel modes: 6, 9, 15, 24 and a 27 channel
mode. Using the 6 channel mode provides the least granular control, and relatively uses
the least number of DMX channels. The different channel assignments and values are
shown below in the following tables. The 6 channel mode provides a full description of all
the values and functions. All other modes of more channels allow additional “section”
control of the bar by dividing the bar into smaller sections of 3 RGB TriLED groups.
Regardless of DMX mode, channel 1 functions are the same in all DMX modes selected,
so it will only be described once below in the 6 channel mode.

Note that the channel

order maybe different for each of the modes.

DMX Channel Mode Descriptions

6 channels:

Bar completely operates as 1 complete section only.

9 channels:

Bar is divided into 2 sections of 4 groups of tri-leds.

15 channels:

Bar is divided into 4 sections of 2 groups of tri-leds.

24 channels:

Bar is divided into 8 individual sections of 1 group of tri-leds.

27 channels:

Bar is divided into 8 individual sections of 1 group of tri-leds with

master dimmer and strobe functions.

Note:

A group of LEDS is 3 tri-leds

Macro CH 1 will over ride all other channels in all modes.

6 Channel Mode

This 6 channel mode fully describes the function of channel 1. Reference this table for all
other DMX channel modes. Macro CH 1 will over ride all other channels in all modes.

CH 1

CH 2

CH3

CH4

CH5

CH6

Macro

Dimmer / Speed

Strobe

Red

Green

Blue

000-010 Blackout

011-021
Channel Mode

Master Dimmer

(0-255)

Red

(0-255)

Green

(0-255)

Blue

(0-255)

022-032 Red
033-043 Yellow
044-054 Green
055-065 Cyan
066-076 Blue
077-087 Purple
088-098 White

099-109 Dream
110-120 Meteor
121-131 Fade
132-142 Change
143-153 Flow 1
154-164 Flow 2
165-175 Flow 3
176-186 Flow 4
187-197 Flow 5
198-208 Flow 6
209-219 Flow 7

220-230 Flow 8
231-241 Flow 9

Color select

(0-255)

242-255
Sound active

Speed (0-255)

Strobe (0-255)

= Channel not Active

Note:

Macro CH 1 will over ride all channels in all modes.
To use the tables below, reference 6 CH mode.
Only change between the different modes is when CH 1 is set for Channel MODE
(DMX Value 011-021).

9 Channel Mode

CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8 CH9
11-21 Master

Dimmer
(0-255)

Strobe (0-
255)

15 Channel Mode

CH
1

CH
2

CH
3

CH
4

CH
5

CH
6

CH
7

CH
8

CH
9

CH
10

CH
11

CH
12

CH
13

CH
14

CH
15

11-21 Master

Dimmer
(0-255)

Strobe
(0-255)

B1 R2 G2 B2 R3 G3 B3 R4 G4 B4

24 Channel Mode

CH
1

CH
2

CH
3

CH
4

CH
5

CH
6

CH
7

CH
8

CH
9

CH
10

CH
11

CH
12

CH
13

CH
14

CH
15

R1 G1

B1 R2 G2 B2 R3 G3 B3 R4 G4 B4 R5 G5 B5

CH
16

CH
17

CH
18

CH
19

CH
20

CH
21

CH
22

CH
23

CH
24

G6 B6

27 Channel Mode

CH
1

CH
2

CH
3

CH
4

CH
5

CH
6

CH
7

CH
8

CH
9

CH
10

CH
11

CH
12

CH
13

CH
14

CH
15

11-21 Master

Dimmer
(0-255)

Strobe
(0-255)

B1 R2 G2 B2 R3 G3 B3 R4 G4 B4

CH
16

CH
17

CH
18

CH
19

CH
20

CH
21

CH
22

CH
23

CH
24

CH
25

CH
26

CH
27

B6 R7 G7 B7 R8 G8 B8

Maintenance

Make sure fixture is cool and disconnected from power mains before any service.

Weekly operating hours and environmental conditions will establish how often the fixtures need
cleaning. Fixtures should be cleaned and inspected at least once a month to maintain optimum
performance. Accumulation of dust and fog residue increases heat build up, can lead to
malfunctions, overheating and reduction in maximum light output, reduced fixture life and over
all performance. Before conducting any maintenance, disconnect fixture from power mains.

1) Disconnect fixture from power mains.
2) Use a vacuum with a soft brush to remove dust collected on external vents and internal
components. If using an air compressor, use low pressures and extreme care to prevent
damaging any internal parts or effects.
4) Clean all optical elements when the fixture is cold. Use a soft lint free cotton cloth or tissue
and cleaner safe for plastics.
5) Inspect clamps and safety cables to ensure fixture is secure and safe.

Accessory Items

(sold separately)

Order Code

Description

CLAMP-MEGA/B

Mega Heavy Duty Aluminum Clamp – Black

CLAMP-CBHALF

Half Cheeseborough Coupler 300kg Max Load

SAFETYCABLE30B

Safety Cable Black 30”

SAFETYCABLE30S

Safety Cable Silver 30”

CA-XLR3/5

Pre-made 5’ 3-pin XLR Cable

CA-XLR3/10

Pre-made 10’ 3-pin XLR Cable

CA-XLR3/25

Pre-made 25’ 3-pin XLR Cable

CA-XLR3/50

Pre-made 50’ 3-pin XLR Cable

CA-XLR3/100

Pre-made 100’ 3-pin XLR Cable

CO-XLR3M

XLR Connector 3-pin Male

CO-XLR3F

XLR Connector 3-pin Female

CO-XLRTERM3

XLR 3 Pin Data Terminator

CO-XLR3MTO5F

XLR 3 Pin Male to 5 Pin Female Adapter

CO-XLR5MTO3F

XLR 5 Pin Male to 3 Pin Female Adapter

Troubleshooting

Symptom

Possible Cause / Solution

Check for power on mains

No Power

Check main fuse and fuse holder

Check data cables: connection and proper wiring

Check Display settings

Erratic / No response to DMX

Check Start Address

Check for overlapping addresses

Check Menu settings

Incorrectly responds to DMX
(Diagnostic technique for DMX issues: Set
suspect fixture’s Start Address the same as a
correctly functioning fixture. If both units then
function correctly, issue is programming)

Check Data cables (faults and proper wiring)

DMX-512 Background

DMX-512 is a digital data transmission standard developed by the United States Institute for Theater Technology
(USITT). It is designed to enable control of lighting equipment. DMX deals solely with the formatting of data for
transmission and does not dictate how the data is created or used.

Under DMX, signals are transmitted in much the same way a computer modem transmits data. The Data, divided
into channels, is "Framed" using a start bit, high (1), eight data bits and finally, two stop bits, both high (1). DMX
uses no parity to check the integrity of the signal. Instead, DMX relies on the ultra low probability of an error
occurring in the same place when the data is resent. The rate at which data is sent is fixed at 250k bps, almost
four and a half times faster that a 56k modem. This speed allows all data on a DMX chain to be updated more
than 44 times every second.

The transmitted data follows a specific format. DMX allows for 512 channels each with eight data bits, giving each
channel the possibility of 256 values. When a data "Packet" is sent, all channels are transmitted one after another.
Even if the data on a specific channel has not been changed, it must be sent. In a packet, a "start code" of all
zeros is sent before the data to identify the signal as a Standard DMX transmission. This start code is transparent
to the user and is handled by the controller.

The physical signals are transmitted using a twisted pair of wires and a common shield, a configuration called
Balanced. The controller and all receiving equipment are connected using a “Daisy Chain" connection. The signal
is jumped from the controller to a piece of DMX equipment. From there, the signal is jumped to the next piece of
equipment and so on until the last piece of equipment is connected. No branches are allowed and the signal does
not come back to the controller. The final piece of equipment will have only one cable connection. As a result, all
equipment connected to the chain will see exactly the same signal whether it is first or last. When connecting
equipment, no particular attention needs to be paid to the order in which the equipment is connected. Depending
on the conditions and equipment, a line terminator may be required. If there is any question, in most circumstances
the addition of a terminator will not degrade the signal. To make a terminator, attach a 120-ohm resistor between
the Signal Data Negative and Signal Data Positive pins of a connector in the last piece of equipment in the chain.

Pin

Connection

Common (Shield)

Data Negative (S- or Cold)

Data Positive (S+ or Hot)

n/c (not used)

The DMX Standard uses 5 pin XLR connectors. However, it is common to see
fixtures with 3 pin XLR connectors as these types of balanced or “Lo-Z” cables
are common in the audio industry. In either case, pin numbers are the same
and carry the same signals.

n/c (not used)

10900 Palmbay Drive • Orlando, FL 32824 U.S.A.
www.techni-lux.com

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