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Art-Net How it works and the ben

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					                                      Artistic Licence

                       Art-Net
         How it works and its benefits in large
                 scale installations.

                                     Wayne Howell
                                      Creative Director
                                       Artistic Licence


Art-Net at PLASA09 by Wayne Howell
                                     Wayne Howell

• Creative Director Artistic Licence
• Inventor of Art-Net
• Active in ESTA Standards Programme
• Member of DMX512 design group
• Member of RDM design group

Art-Net at PLASA09 by Wayne Howell
                                     Agenda

•   One hour session
•   The history
•   What is Art-Net?
•   How does Art-Net work?
•   Large scale applications
•   Good network design

Art-Net at PLASA09 by Wayne Howell
                   The History of Art-Net




Art-Net at PLASA09 by Wayne Howell
                              Audience Participation
But first audience participation
  time:
• What do you do?
   – End User
   – Manufacturer
   – Distributer
   – Developer
   – Specifier
Art-Net at PLASA09 by Wayne Howell
                              Audience Participation
• Who uses DMX regularly?
• Who uses Ethernet regularly?
• Who uses Art-Net regularly?
• Who understands the term
  “Collision Domain”?
• Who cares whether they
  understand the term “Collision
  Domain”?

Art-Net at PLASA09 by Wayne Howell
                                     History
• 30 years ago
     – Analogue multicore
• 25 years ago
     – Analogue multiplex
• 20 years ago
     – DMX512
• 15 years ago
   – DMX512 multicore
• 10 years ago
   – Networking

Art-Net at PLASA09 by Wayne Howell
                                     Analogue Multicore
• Single wire = Single channel
• Multiple formats:
     – 0 to +5V
     – 0 to -12V
     – 0 to +10V
• Incompatible connectors:
     – DB25
     – DB37
     – Socapex 37
Art-Net at PLASA09 by Wayne Howell
                                     Analogue Multiplex

• Single wire = Multiple channel
• Driven by theatre industry
• Multiple formats:
   – AMX192
   – D54
   – S20

Art-Net at PLASA09 by Wayne Howell
                                     Digital Multiplex

• Single wire = Multiple channel
• Longer cable length
• Higher channel count
• Improved reliability
• Proprietary solutions
• Compatibility issues
Art-Net at PLASA09 by Wayne Howell
                                     DMX512

• Developed by USITT
• Managed by ESTA
• 512 channels per cable
• 300m maximum distance
• 32 Fixtures per cable
• Standardised across manufacturers
Art-Net at PLASA09 by Wayne Howell
                                     Networking

• LED technology increases
  channel thirst exponentially
• 512 channels no longer
  adequate
• Network technology offers
  the solution

Art-Net at PLASA09 by Wayne Howell
                                     Early Protocols

• Strand ShowNet
• ETC ETCNet
• Other proprietary
  protocols.
• Cast WYSIWYG
• Art-Net
Art-Net at PLASA09 by Wayne Howell
                                     Art-Net

• Conceived as a DMX
  Multicore
• Solved a problem
• Published on a royalty free
  basis
• Widespread industry support

Art-Net at PLASA09 by Wayne Howell
                                             Ethernet
                                 Why use for Lighting?
 • Existing network protocols
 • Low cost Cat5 cable
 • Better contractor
   understanding
 • Higher bandwidth
 • Existing building networks
   can be used

Art-Net at PLASA09 by Wayne Howell
                                             Ethernet
                                 Why use for Lighting?
 • Progression path to faster
   systems
 • Leverage existing IT market
   technology
 • A 10BaseT network cable can
   carry approximately 40 times
   more data than a DMX cable


Art-Net at PLASA09 by Wayne Howell
                                             Ethernet
                                 Why use for Lighting?
• Ethernet can be
  transmitted over a variety
  of media:
     –   WiFi
     –   LASER
     –   Telephones
     –   ADSL
     –   ISDN
     –   Fibre optic
Art-Net at PLASA09 by Wayne Howell
                                             Ethernet
                                 Why use for Lighting?
• All modern ethernet
  wiring is star format
• Increases system
  reliability compared to
  ‘Ring’ or ‘Loop
  Through’
• Better configurability
Art-Net at PLASA09 by Wayne Howell
                                          Ethernet
                                     The down side
• Star wiring topology makes
  touring applications more
  complex
• Cable distance limited to
  100m
• Higher knowledge levels
  required by designers &
  installers
Art-Net at PLASA09 by Wayne Howell
                                          Art-Net
                                     The Benefits
• Remote patching of all
  DMX512 inputs and outputs
• Allows DMX512 data to be
  merged in either LTP or HTP
• Simple to implement new
  features – e.g. remote
  control of the lighting
  console
Art-Net at PLASA09 by Wayne Howell
                                           Art-Net
                                      The Benefits
•   Supports RDM standard
•   Macro triggering
•   Open access to protocol
•   Free and public domain
    resources such as:
     – DMX-Workshop
     – WireShark
     – Net-View allows monitoring via a
       radio link
Art-Net at PLASA09 by Wayne Howell
                                     Is DMX Dead?
• No!
• Art-Net will work
  together with DMX
• Ethernet would not
  work in all applications
• Commercial resistance
  to change
Art-Net at PLASA09 by Wayne Howell
                     A Networking Primer




Art-Net at PLASA09 by Wayne Howell
                                         Ethernet
                                     How To Use It
• Ethernet is less forgiving
  than DMX512
• Follow the rules
• Use the correct cable
• Use the correct connectors


Art-Net at PLASA09 by Wayne Howell
                                        Ethernet
                                      Media Types
• Media Type is the physical
  entity used to carry the data.
  Copper or Fibre.
     –   Cat1 to Cat4 not important
     –   Cat5: 10BaseT & 100BaseT
     –   Cat5e: Better Cat5
     –   Cat6: Gigabit (1000BaseT)
     –   Cat7: 10 Gigabit

Art-Net at PLASA09 by Wayne Howell
                                          Ethernet
                                     Physical Layer
• Physical Layer means the
  network electrical
  connection
• Example: 10BaseT
     – T = Twisted Pair
     – Base = Baseband
     – 10 = Multiply by 106 for
       bps
Art-Net at PLASA09 by Wayne Howell
                                          Ethernet
                                     Physical Layer
• 10Base2
• Old style coaxial cable
     –   Speed: 10 Meg
     –   Max Cable: 185m
     –   Topology: Ring (Delta)
     –   Band: Baseband
• No longer in widespread use

Art-Net at PLASA09 by Wayne Howell
                                          Ethernet
                                     Physical Layer
• 10BaseT
• Uses UTP Cat5 cable
     –   Speed: 10 Meg
     –   Max Cable: 100m
     –   Topology: Star
     –   Band: Baseband
• Widely used in Entertainment
  Networks – particularly for end
  data delivery

Art-Net at PLASA09 by Wayne Howell
                                          Ethernet
                                     Physical Layer
• 100BaseT (Fast Ethernet)
• Uses UTP Cat5 cable
     –   Speed: 100 Meg
     –   Max Cable: 100m
     –   Topology: Star
     –   Band: Baseband
• Widely used in Entertainment
  Networks – particularly for
  console communications.

Art-Net at PLASA09 by Wayne Howell
                                          Ethernet
                                     Physical Layer
• 100BaseFx
• Uses fibre optic cable
     –   Speed: 100 Meg
     –   Max Cable Single Mode: 10km
     –   Max Cable Multimode: 2km
     –   Topology: Star
     –   Band: Baseband
• Widely used to back bones in
  Entertainment Technology

Art-Net at PLASA09 by Wayne Howell
                                          Ethernet
                                     Physical Layer
• 1000BaseT (Gigabit)
• Uses UTP Cat6 cable
     –   Speed: 1000 Meg
     –   Max Cable: 100m
     –   Topology: Star
     –   Band: Baseband
• Widely used video streaming
  applications.
Art-Net at PLASA09 by Wayne Howell
                                      Ethernet
                                     The Cable
•   Coaxial
•   UTP
•   STP
•   Fibre
     – Single Mode
     – Multi Mode


Art-Net at PLASA09 by Wayne Howell
                                      Ethernet
                                     The Cable
• Solid Conductor:
     – Installation
     – 100m for 10BaseT
• Stranded or Patch
     – Portable
     – Patch Bay
     – 80m for 10BaseT

Art-Net at PLASA09 by Wayne Howell
                                          Ethernet
                                     The Connector
• RJ45
     –   Screened
     –   Wire Type
     –   Cat Rating
     –   Industrial – (Neutrik)
     –   Waterproof –
         (Woodhouse)

Art-Net at PLASA09 by Wayne Howell
                                            Ethernet
                                     Wiring Schemes
                                       MDI

• MDI                                  Pin   Name   Purpose

                                       1     Tx+    Transmit Data
     – Used on all Nodes               2     Tx-    Transmit Data

     – 4 wires used for                3     Rx+    Receive Data

                                       4     BD3+   Not used in
       10BaseT & 100BaseTX                          10BaseT
                                       5     BD3-   Not used in
     – 8 wires used for                             10BaseT
                                       6     Rx-    Receive Data
       100BaseT4 & Gigabit             7     BD4+   Not used in
                                                    10BaseT
                                       8     BD4-   Not used in
                                                    10BaseT




Art-Net at PLASA09 by Wayne Howell
                                            Ethernet
                                     Wiring Schemes
                                       MDI-X

• MDI-X                                Pin     Name   Purpose

                                       1       Rx+    Receive Data
     – Used on all Hubs,               2       Rx-    Receive Data
       Switches & Routers              3       Tx+    Transmit Data

                                       4       BD3+   Not used in
     – MDI-X is MDI with built                        10BaseT
                                       5       BD3-   Not used in
       in cross over cable                            10BaseT
                                       6       Tx-    Transmit Data

                                       7       BD4+   Not used in
                                                      10BaseT
                                       8       BD4-   Not used in
                                                      10BaseT




Art-Net at PLASA09 by Wayne Howell
                                            Ethernet
                                     Wiring Schemes
• Auto-MDI
     – Many products now
       automatically detect
       and correct MDI / MDI-
       X wiring errors
     – Hubs usually have an
       ‘UpLink’ port that has
       MDI wiring

Art-Net at PLASA09 by Wayne Howell
                                            Ethernet
                                     Wiring Schemes
• Auto-Polarity
     – Auto-Polarity is
       different to Auto-MDI
     – It corrects for a mis-
       wired pair.




Art-Net at PLASA09 by Wayne Howell
                                              Ethernet
                                     Straight or Cross?
• Straight Cable
     – Hub to Node
     – MDI to MDI-X
• Cross Cable
     –   Node to Node
     –   Hub to Hub
     –   MDI to MDI
     –   MDI-X to MDI-X

Art-Net at PLASA09 by Wayne Howell
                                         Ethernet
                                     Cable Colours
• Colours:
     – Yellow = Straight
     – Red = Cross
     – Green = DMX




Art-Net at PLASA09 by Wayne Howell
                                             Ethernet
                                     Data Distribution
• Hub:
     – Just an electrical
       repeater
     – Analogous to DMX
       Splitter
     – Follow 5-4-3 Rule



Art-Net at PLASA09 by Wayne Howell
                                             Ethernet
                                     Data Distribution
• Switch (Bridge):
     – Intelligent repeater
     – Retransmits data
     – Terminates Collision
       Domain
     – No 5-4-3 Rule



Art-Net at PLASA09 by Wayne Howell
                                          Ethernet
                                     Hub or Switch?
• Hub:
     – Faster
     – No configuration
     – No broadcast blocking
                                              ?
• Switch:
     – Bandwidth
       management
     – No 5-4-3

Art-Net at PLASA09 by Wayne Howell
                How does Art-Net work?




Art-Net at PLASA09 by Wayne Howell
                                     Under the hood
The ArtDmx Packet
• Contains 512 bytes of
  data from DMX512.
• The destination
  Universe
• A few control fields for
  error checking
Art-Net at PLASA09 by Wayne Howell
                                     Broad – Uni- Multi -
                                                 Casting
• Broadcast
     – One to All
• Unicast
     – One to One
• Multicast
     – One to Many


Art-Net at PLASA09 by Wayne Howell
                                     Broadcasting
• Original concept of
  “Digital Multicore”
  used Broadcast
• Benefit of simplicity
  for users
• Burns network
  bandwidth
Art-Net at PLASA09 by Wayne Howell
                                     Art-Net II
• Needed as universe
  count increased.
• Uses simple
  algorithm to Unicast
• Fully compatible with
  Art-Net I

Art-Net at PLASA09 by Wayne Howell
                                     Polling
• ArtPoll
     – Console broadcasts
       “Who is there?”
• ArtPollReply
     – Dimmers and lamps
       reply with their
       information and status


Art-Net at PLASA09 by Wayne Howell
                                     Sensing
• ArtTod
     – End devices broadcast
       their list of connected
       RDM devices
• ArtRdm
     – Art-Net is used as a
       carrier to route RDM
       messages over the
       network
Art-Net at PLASA09 by Wayne Howell
                                     What is RDM?
• RDM is a new way of
  sending data in two
  directions over the
  DMX cable
• Set the start address
  or personality
  remotely
• Retrieve sensors and
  status
Art-Net at PLASA09 by Wayne Howell
                                      How does it work?
• It uses pins 2 & 3 just like
  DMX512
• The direction of the DMX
  cable occasionally
  switches to let data
  return




 Art-Net at PLASA09 by Wayne Howell
                                     Conclusions
Art-Net leverages the following
  technologies to provide a public
  and royalty free solution to today’s
  lighting control needs:
• DMX512
• RDM
• Ethernet
• TCP/IP

Art-Net at PLASA09 by Wayne Howell
                 Large Scale Applications




Art-Net at PLASA09 by Wayne Howell
                                     Broadgate

•   Colour Changing Fixtures
•   Control System
•   Installation
•   Training
•   Programming
•   Maintenance

Art-Net at PLASA09 by Wayne Howell
                                     The Fixture

•   Colour Change
•   In-Ground
•   Waterproof
•   Low Power
•   Low Maintenance
•   Long Life
•   Remote Configured
Art-Net at PLASA09 by Wayne Howell
                                     The Sensors

•   Line Voltage
•   Temperature
•   Water
•   Start address
•   Lamp on time
•   Fixture on time
•   Firmware
Art-Net at PLASA09 by Wayne Howell
The Network




              U1-111-118                                                                      U2-105-108
              U1-105-118                              U1-117-114                              U2-123-112                                      U2-111-104
              U1-123-122                              U1-111-114                              U2-117-110                                      U2-105-104
              U1-117-120                              U1-105-114                              U2-111-110                                      U2-123-108
              U1-111-120                              U1-123-118                              U2-105-110                                      U2-117-106
              U1-105-120                              U1-117-116                              U2-123-114                                      U2-111-106
              U1-122-123                              U1-111-116                              U2-117-112                                      U2-105-106
              U1-117-122                              U1-105-116                              U2-111-112                                      U2-123-110
              U1-111-122                              U1-123-120                              U2-105-112                                      U2-117-108
              U1-105-122                              U1-117-118                              U2-123-116                                      U2-111-108
                           DMX-Cat #1




                                                                   DMX-Cat #2




                                                                                                           DMX-Cat #3




                                                                                                                                                                           DMX-Cat #4
                                        Iso-spit #1




                                                                                Iso-spit #2




                                                                                                                        Iso-spit #3




                                                                                                                                                                                                          Iso-spit #4




                                                                                                                                                                                                                                        Art-Net at PLASA09 by Wayne Howell
                                                                                                                                                           Ether-Lynx #1




                                                                                                                                                                                                                        Ether-Lynx #2
                                                                                                                                      DMX Universe 2
                                                                                                                                      DMX Universe 1




                                                                                                                                                                                          Ethernet
                                                                                                                                                                                        Ethernet Hub
                                                                                                                                                                                    Ethernet
                                                                                                                                                                                        Colour-Tramp PC
                                     Pan Peninsular
          Ballymore Properties Landmark in London




Art-Net at PLASA09 by Wayne Howell
                                     Knoxx Nightclub
                Largest club light feature in Europe




Art-Net at PLASA09 by Wayne Howell
                                     UB40 Dub Sessions
                               So is DMX dead?




Art-Net at PLASA09 by Wayne Howell
                          City of Dreams - Macau
Bubble Theatre is one part of massive control network




Art-Net at PLASA09 by Wayne Howell
                                            O2 Dome
              A holistic approach to lighting control




Art-Net at PLASA09 by Wayne Howell
                      Hotel Puerta de America
                                       Madrid
                     Control and streaming video




Art-Net at PLASA09 by Wayne Howell
                                     Aspire Tower Doha
                           High speed animation




Art-Net at PLASA09 by Wayne Howell
                                     Still confused about
                                                ethernet?
                                        • Rock Solid Ethernet
                                          about ethernet in
                                          entertainment
                                          technology
                                        • Written by Artistic’s
                                          Wayne Howell
                                        • Available from ET
                                          Press
                                        • See us on Stand E32
Art-Net at PLASA09 by Wayne Howell
                                      Artistic Licence

                            Art-Net
            Visit Artistic Licence on Stand E32

                                     Wayne Howell
                                      Creative Director
                                       Artistic Licence




Art-Net at PLASA09 by Wayne Howell

				
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