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DMX512

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system was based on frequency-hopping spread spectrum (FHSS) technology using commercial wireless modems. Other later-generation systems still used frequency-hopping spread spectrum (FHSS) technology, but at higher bandwidth. FHSS systems tend to disturb other types of wireless communication systems such as WiFi/WLAN. This has been solved in newer wireless DMX systems by using adaptive frequency hopping, a technique to detect and avoid surrounding wireless systems, to avoid transmitting on occupied frequencies.
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specification of the original 1986 standard was changed in 1990. Specifically, the MAB, which was originally fixed at 4 μs, was changed to 8 μs, minimum. The E1.11 (2004) standard relaxed the transmitter and receiver timing specifications. This relaxed the timing requirements for systems using controllers built to DMX512-A (E1.11); however, a significant number of legacy devices still employ transmit timing near the minimum end of the range.
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to be controlled by the master controller. Smaller controllers may have a single OUT connector, enabling them to control only one universe, whereas large control desks (operator consoles) may have the capacity to control multiple universes, with an OUT connector provided for each universe. Many of the more modern control desks instead of featuring multiple OUT connectors have an
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context firstly presents a risk of damage to the lighting equipment should an audio cable carrying 48-volt phantom power be accidentally connected, and secondly encourages the use of cable following analog audio specifications for DMX, which can lead to signal degradation and unreliable operation of the DMX network.
565:, systems having few devices and short cables) will sometimes function normally without a terminator, the standard requires its use. Some DMX slave devices have built-in terminators that can be manually activated with a mechanical switch or by software, or by automatically sensing the absence of a connected cable. 622:, with a termination resistor at the end of the cable furthest from the controller to absorb signal reflections. DMX512 has two twisted pair data paths, although the specification currently only defines the use of one of the twisted pairs. The second pair is undefined but required by the electrical specification. 1223:
An Ethernet-based protocol can distribute multiple DMX universes through a single cable from a control location to breakout boxes closer to fixtures. These boxes then output the conventional DMX512 signal. ANSI E1.31—2009 Entertainment Technology—Lightweight streaming protocol for transport of DMX512
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protocol through the definition of Enhanced Functionality. RDM allows for diagnostic feedback from fixtures to the controller by extending the DMX512 standard to encompass bidirectional communication between the lighting controller and lighting fixtures. RDM was approved by ANSI in 2006 as ANSI E1.20
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audio cables lack the requisite electrical characteristics and thus are not suitable for DMX512 cabling. The significantly lower impedance and higher capacitance of these cables distort the DMX512 digital waveforms, which in turn can cause irregular operation or intermittent errors that are difficult
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Fixed installation products with internal connections to the data link may use the 5-pin XLR connector, but shall not use any other XLR connector. When use is made of the 5-pin XLR connector, the requirements of 7.1 and 7.1.1 shall apply. When a non-XLR connector is used, this Standard makes no other
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A DMX512 network is called a "DMX universe". Each OUT connector on a DMX512 controller can control a single universe. A DMX512 universe is made up of 512 channels, with each channel containing a value between 0 and 255. Each slave device in the chain can "look at" a different set of channels in order
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In the 1986 and 1990 standards the use of the second data pair is not defined other than as an ‘optional second data link’. Both unidirectional and bidirectional use were envisioned. Other proprietary uses have been implemented for these pins. Schemes that use voltage outside of the range allowed by
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Dimmer packs or racks use a group of slots to determine the levels for their dimmers. Typically a dimmer has a starting address that represents the lowest-numbered dimmer in that pack, and the addressing increases from there to the highest-numbered dimmer. As an example, for two packs of six dimmers
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The three-pin XLR connector is commonly used for DMX512, on lighting and related control equipment, particularly at the budget/DJ end of the market. However, using three-pin XLR connectors for DMX512 is specifically prohibited by section 7.1.2 of the DMX512 standard. Use of the three-pin XLR in this
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The E1.11 (DMX512 2004) electrical specification addresses the connection of DMX512 signal common to earth ground. Specifically, the standard recommends that transmitter ports (DMX512 controller OUT port) have a low impedance connection between signal common and ground; such ports are referred to as
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Each slave device has a DMX512 "IN" connector and usually an "OUT" (or "THRU") connector as well. The controller, which usually has only an OUT connector, is connected via a DMX512 cable to the IN connector of the first slave. A second cable then links the OUT or THRU connector of the first slave to
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Many alternatives to DMX512 have been proposed to address limitations such as the maximum slot count of 512 per universe, the unidirectional signal, and the lack of inherent error detection. The 2004 DMX512-A revision added a System Information Packet (SIP). This packet can be interleaved with Null
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emitted by mixing consoles could damage DMX512 equipment if connected to it. The DMX512 signals emitted by lighting desks can damage microphones and other sound equipment if connected to it. As a result, the best practice is to use only 5-pin XLRs for DMX512 signals, to avoid risk of confusion with
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DMX does not mandate a method of 16-bit encoding for Null Start Code packets; however, many parameters of moving lights make use of encoding larger than 8-bit numbers. To control these parameters more accurately, some fixtures use two channels for parameters that require greater accuracy. The first
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DMX512 timing parameters may vary over a wide range. The original authors specified the standard this way to provide the greatest design flexibility. Because of this, however, it was difficult to design receivers that operated over the entire timing range. As a result of this difficulty, the timing
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or other high-speed data cables useless, although cable faults can occasionally lead to intermittent problems such as random triggering. Unexpected fixture behavior is caused by addressing errors, cable faults, incorrect data from the controller, or multiple DMX sources inadvertently applied to a
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Packets identified by a NULL START Code are the default packets sent on DMX512 networks. Earlier versions of this standard assumed that only dimmer class data would be sent using NULL START Code packets. In practice NULL START Code packets have been used by a wide variety of devices; this version
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Cabling for DMX512 was removed from the ANSI E1.11 standard and a separate cabling standards project was started in 2003. Two cabling standards have been developed, one for portable DMX512 cables (ANSI E1.27-1 – 2006) and one for permanent installations (draft standard BSR E1.27-2). This resolved
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Although wireless DMX512 networks can function over distances exceeding 3,000 feet (910 m) under ideal conditions, most wireless DMX512 links are limited to a maximum distance of 1,000–1,500 feet (300–460 m) to ensure reliable operation. The first commercially marketed wireless DMX512
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Recently, wireless DMX512 adapters have become popular, especially in architectural lighting installations where cable lengths can be prohibitively long. Such networks typically employ a wireless transmitter at the controller, with strategically placed receivers near the fixtures to convert the
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DMX512 has also expanded to uses in non-theatrical interior and architectural lighting, at scales ranging from strings of Christmas lights to electronic billboards and stadium or arena concerts. It can now be used to control almost anything, reflecting its popularity in all types of venues.
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The electrical characteristics of DMX512 cable are specified in terms of impedance and capacitance, although there are often mechanical and other considerations that must be considered as well. Cable types that are appropriate for DMX512 usage will have a nominal characteristic impedance of
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The standard does not specify the minimum number of slots that can be sent in a packet. However, it does require that packets be transmitted so that the leading edges of any two sequential BREAKs must be separated by at least 1204 μs, and receivers must be able to handle packets with
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no more than 400 metres (1,300 ft) long, with not more than 32 unit loads (individual devices connected) on a single bus. If more than 32 unit loads need to communicate, the network can be expanded across parallel buses using DMX splitters. Network wiring consists of a shielded
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of the two channels controls the coarse (256 steps for the whole range of movement) and the second the fine (256 steps for each coarse step), this gives a 16-bit value range of 65536 steps, permitting much greater accuracy for any 16-bit controlled parameter such as Pan or Tilt.
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break-to-break times as short as 1196 μs. The minimum break-to-break transmit time can be achieved by sending packets that contain at least 24 slots (by adding extra padding bytes, if necessary) or by stretching parameters such as the BREAK, MAB, Interslot, or Interpacket times.
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followed by a "mark" (a logical one), known as the "Mark After Break" (MAB). The break, which signals the end of one packet and the start of another, causes receivers to start reception and also serves as a frame (position reference) for data bytes within the packet.
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As the electrical specification currently only defines a purpose for a single wire pair, some equipment manufacturers continue to use it. Such equipment is not compliant with the DMX standard, but may be sufficiently compatible for operation using simple
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DMX512-A uses a single pair of conductors, so can be connected using the cheaper 3-pin XLR connectors. Some manufacturers made units with three-pin XLR connectors, because of their lower cost. However, as 3-pin XLRs are commonly used for connecting
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Grounded receivers that have a hard connection between signal common and ground are permitted but their use is strongly discouraged. Several possible grounding configurations that are commonly used with EIA485 are specifically disallowed by E1.11.
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The specification requires a 'terminator' to be connected to the final OUT or THRU connector of the last slave on the daisy chain, which would otherwise be unconnected. A terminator is a stand-alone male connector with an integral
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standard. The resulting revised standard, known officially as "Entertainment Technology—USITT DMX512-A—Asynchronous Serial Digital Data Transmission Standard for Controlling Lighting Equipment and Accessories", was approved by the
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When DMX512 was ratified, many of these manufacturers then issued firmware updates to enable the use of DMX512 control on their existing equipment by the use of a simple adapter to and from the standard 5-pin XLR style connector.
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Additionally, terminating the DMX line often exposes physical cable faults - for example, if the "Data −" wire is broken, an unterminated DMX run may partially work, while fitting the terminator immediately exposes the problem.
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It is important for users to check whether their devices have automatic or switched termination, as otherwise they may end up with the DMX line being terminated multiple times or not at all when they believed it to be correct.
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Maximum times are not specified because as long as a packet is sent at least once per second, the BREAK, MAB, inter-slot time, and the mark between the last slot of the packet and the break (MBB) can be as long as desired.
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All slots following the start code contain control settings for slave devices. A slot's position within the packet determines the device and function to be controlled while its data value specifies the control set point.
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zero) is the standard value used for all DMX512 compatible devices, which includes most lighting fixtures and dimmers. Other start codes are used for Text packets (0x17), System Information Packets (0xCF), for the
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A concession to use an alternate connector is available only when it is physically impossible to mount a 5-pin XLR connector on the product. In such cases all the following additional requirements shall be
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The standard also allows for isolated transmitter ports and non-isolated receivers. It also recommends that systems ground the signal common at only one point, in order to avoid the formation of disruptive
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Some equipment has automatic termination, others a physical switch, while the remainder requires a physical terminator (e.g. male XLR-5 plug fitted with a resistor) to be installed by the user.
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Other form-factors of connectors are permitted on equipment where the XLR and RJ-45 would not fit or are considered inappropriate, for example on equipment intended for permanent installation.
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has their own version of the RJ-45 connector for DMX, which predates the 2008 official inclusion in the DMX512 standard. The pinout specifically for Color Kinetics LED lighting products is:
939:, a DMX512 controller transmits asynchronous serial data at 250 kbit/s. The data format is fixed at one start bit, eight data bits (least significant first), two stop bits and no 1609:"TSP - Working Groups - About, Camera Cranes, Control Protocols, Electrical Power, Event Safety, Floors, Fog & Smoke, Followspot Position, Photometrics, Rigging, Stage Lifts" 1549: 1080:
Each NULL START Code packet contains no formal data or addressing structure. The device using data from the packet must know the position of that data within the packet.
474:(USITT), the DMX512 standard (for digital multiplex with 512 pieces of information) was created in 1986, with subsequent revisions in 1990 leading to USITT DMX512/1990. 381:
A DMX splitter/buffer. It allows a DMX universe from one source to be repeated to several chains of devices, in order to avoid signal degradation due to long cable runs.
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the IN connector of the next slave in the chain, and so on. For example, the block diagram below shows a simple network consisting of a controller and three slaves.
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In the early days of digital lighting control, several equipment manufacturers employed various connectors and pinouts for their proprietary digital control signals.
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Some of the more common symptoms of improper termination are flashing, uncontrollable or incorrect light operation, or other undesired random special effects.
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EIA485 are disallowed. Guidance on allowed usage can be found in Annex B of E1.11. Current standard practice is to leave the secondary data link pins unused.
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restriction or stipulation on connector choice. The contact (pin) numbering on the alternate connector should match numbering for the standard 5-Pin XLR
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voltage levels. DMX512 electrical specifications are identical to those of the EIA-485-A standard, except where stated otherwise in E1.11.
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each, the first pack would start at address 1 and the second pack at address 7. Each slot in the DMX512 packet corresponds to one dimmer.
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Interfaces are listed by their speed in the (roughly) ascending order, so the interface at the end of each section should be the fastest.
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patch cables. The avoidance of pins 4 and 5 helps to prevent equipment damage, if the cabling is accidentally plugged into a single-line
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issues arising from the differences in requirements for cables used in touring shows versus those used for permanent infrastructure.
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networks that are commonly used to control lighting and effects. It was originally intended as a standardized method for controlling
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DMX512's popularity is partly due to its robustness. The cable can be abused without any loss of function in ways that would render
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packets. One feature of SIPs is they allow checksums to be sent for DMX Null data. However, SIPs have rarely been implemented.
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2) The alternate connector shall not be any type of IEC 60603-7 8-position modular connector except as allowed in clause 7.3.
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wireless signal back to conventional DMX512 wired network signals or wireless receivers built into the individual fixtures.
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can be used to send DMX data over WiFi, this is not generally recommended due to the highly variable latency of WiFi.
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The first slot is reserved for a "Start Code" that specifies the type of data in the packet. A start code of 0x00 (
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extension to DMX (0xCC), and various proprietary systems. ESTA maintains a database of alternate start codes.
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Multiple incompatible wireless protocols currently exist. While DMX-over-Ethernet protocols such as E1.31 -
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Note: Several manufacturers used other pinouts for RJ-45 connectors prior to this inclusion in the standard.
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United States Institute for Theatre Technology -- Resources > Standards > DMX512 > DMX512 FAQ --
511:. A network consists of a single DMX512 controller – which is the master of the network — and one or more 2456: 2395: 2250: 802:
Note: There is a risk of equipment damage if 3-pin XLR audio and DMX signals are plugged into each other.
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A NULL START Code identifies subsequent data slots as a block of un-typed sequential 8-bit information.
662:(XLR-5), with female connectors used on transmitting (OUT) ports and male connectors on receiving ports. 82: 2587: 2055: 1820: 2425: 1689: 2110: 1049:(slots following the start code), takes approximately 23 ms to send, corresponding to a maximum 915:, commonly used for networking and telecommunications, has been tested by ESTA for use with DMX512A. 639: 512: 1469: 654:
The original DMX512 1990 specified that where connectors are used, the data link shall use five-pin
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of about 44 Hz. For higher refresh rates, packets having fewer than 512 channels can be sent.
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differential signaling at its physical layer, in conjunction with a variable-size, packet-based
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Data 1+ and - are often swapped over. The most commonly encountered pinout is given first:
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resistor connected across the primary data signal pair; this resistor matches the cable's
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7.2 Equipment intended for fixed installation with internal connections to the data link
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Most data is sent with the default Null Start Code of 00h. Quoting from the standard:
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are used by some DMX-compatible hardware with ESTA standard or proprietary pinouts.
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protocol or 65536 using the sACN protocol, and the existing Ethernet in buildings.
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DMX512 Protocol Implementation Using MC9S08GT60 8-Bit MCU (Application Note 3315)
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Digital communication network standard for controlling stage lighting and effects
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is frequently employed as the controller for a network of slave devices such as
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termination resistor to be fitted at the extreme end of the signal cable.
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2 pair, 24 AWG, 7x32 stranded, tinned copper, 6.9 left-hand twist/ft
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In 1998 the ESTA began a revision process to develop the standard as an
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The most common of these was the three-pin XLR connector (also called
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modular connector pinout matches the conductor pairing scheme used by
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Note: This connector is prohibited by section 7 of ANSI E1.11 - 2008.
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DMX512 signal on an oscilloscope, annotated to show measured timing
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dimmers, which, prior to DMX512, had employed various incompatible
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1) The alternate connector shall not be any type of XLR connector.
19:"Digital Multiplex" redirects here. For digital multiplexers, see 2543: 2497: 2481: 2307: 2125: 2070: 2005: 1960: 1247: 1229: 1215:
E1.11-2004, a revision of DMX512-A, also lays the foundation for
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7.1.2 Concession for use of an alternate connector (NCC DMX512-A)
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DMX512-A (ANSI E1.11-2008) defined the use of eight-pin modular (
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http://www.usitt.org/Resources/Standards2/DMX512/DMX512FAQ#a12
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uses wireless DMX to control the lighting on the pods and rim.
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asynchronous, half-duplex, serial protocol over a two-wire bus
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DMX512 data is transmitted over a differential pair using
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Up to 512 slots of channel data, each containing one byte
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is connected across it as well. Although simple systems (
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The use of any other XLR-style connector is prohibited.
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are two free-to-use protocols used to achieve this.
888:The standard cables used in DMX512 networks employ 455:, excessively long cables, or poor quality cables. 56:. Unsourced material may be challenged and removed. 780: 976:. Following the break, up to 513 slots are sent. 460:Entertainment Services and Technology Association 2574: 1299: 1137:DMX512-A specifies that the connector must be a 462:(ESTA), and can be downloaded from its website. 2583:American National Standards Institute standards 2158:Coherent Accelerator Processor Interface (CAPI) 1580: 1060: 472:United States Institute for Theatre Technology 1821: 507:strung together in what is commonly called a 1659:"Ujjal's DMX512 Pages....The DMX512 Packet" 470:Developed by the Engineering Commission of 1828: 1814: 1505: 1503: 956:Slot 0, containing the one-byte Start Code 1581:Luna, Oscar; Torres, Daniel (2002–2009). 1329: 1327: 1166:The DMX512 signal lines require a single 116:Learn how and when to remove this message 1363: 1115: 963:The start of a packet is signified by a 926: 884:Cable built to the DMX512A specification 879: 376: 1641:American National Standard E1.11 – 2004 1500: 21:Multiplexer § Digital multiplexers 2575: 1539: 1492:: CS1 maint: archived copy as title ( 1447:: CS1 maint: archived copy as title ( 1324: 1111: 1045:A maximum-sized packet, which has 512 838: 726:Data 2+ (Optional Secondary Data Link) 723:Data 2- (Optional Secondary Data Link) 557:. If a secondary data pair is used, a 1809: 1687: 1186: 618:, with a characteristic impedance of 489:American National Standards Institute 458:The DMX standard is published by the 1637: 54:adding citations to reliable sources 25: 1759:from the original on 8 January 2017 1511:"PLASA Technical Standards Program" 1158:connectors used for sound signals. 494: 13: 1098: 1089: 685:From ANSI E1.11 - 2008 section 7: 537: 14: 2604: 1775: 1729:from the original on 6 April 2017 1242:Architecture for Control Networks 775:public switched telephone network 592: 2559: 2558: 1619:from the original on 28 May 2017 1597:from the original on 2017-08-30. 307: 136: 30: 1741: 1711: 1700:from the original on 2019-05-24 1681: 1651: 1631: 1601: 1574: 1563: 1552:from the original on 2019-05-24 1430:from the original on 2016-04-17 1366:Recommended Practice for DMX512 1244:(ANSI E1.31/sACN/Streaming ACN) 1132: 806: 781:Common non-compliant connectors 730: 708: 41:needs additional citations for 1690:"W-DMX on the Singapore Flyer" 1540:Cadena, Richard (2009-10-31). 1533: 1410: 1394:"Introduction and Terminology" 1386: 1357: 1276: 1217:Remote Device Management (RDM) 1206: 1161: 757:Signal Common (0 V) for Data 2 754:Signal Common (0 V) for Data 1 1: 2342: 2153:Intel Ultra Path Interconnect 1269: 1228:, published May 4, 2009, and 649: 597: 427:DMX512 uses a unidirectional 2131:Intel QuickPath Interconnect 2121:Direct Media Interface (DMI) 1061:Addressing and data encoding 445:electromagnetic interference 302:Prohibited non-DMX connector 7: 1782:Technical Standards Program 1590:. Freescale Semiconductor. 1235: 922: 720:Data 1+ (Primary Data Link) 717:Data 1- (Primary Data Link) 499:A DMX512 network employs a 477: 10: 2609: 2116:Compute Express Link (CXL) 1265:(Remote Device Management) 1108:single chain of fixtures. 875: 465: 18: 2552: 2511: 2490: 2439: 2353:IEEE-1284 (parallel port) 2275: 2268:logical device interface) 2171: 1923: 1857: 1688:Evans, Jim (2008-09-23). 1570:DMX (DMX512) RJ-45 pinout 1542:"Troubleshooting DMX 512" 1220:and is gaining interest. 995: 909:to identify and correct. 791:jack in some countries). 370: 367: 362: 359: 354: 351: 346: 341: 336: 331: 326: 321: 318: 306: 291: 283: 275: 267: 259: 254: 249: 246: 241: 238: 233: 228: 225: 220: 217: 212: 207: 204: 199: 196: 191: 188: 183: 180: 175: 170: 165: 160: 155: 150: 147: 135: 1719:"DMX512 WITH OUT WIRES!" 1253:Lighting control console 972:data bytes are known as 946:Each frame consists of: 555:characteristic impedance 1364:Bennette, Adam (2006). 1258:Lighting control system 571:unshielded twisted pair 1915:List of bus bandwidths 1139:five-pin XLR connector 1125: 1082: 1077:recognizes this fact. 1070:8.5.1 NULL START code 932: 885: 834:1- (Primary Data Link) 827:1+ (Primary Data Link) 705: 542: 433:communication protocol 382: 327:General specifications 156:General specifications 1801:Open Lighting Project 1723:www.goddarddesign.com 1663:www.dmx512-online.com 1151:sound mixing consoles 1119: 1068: 930: 883: 688: 660:electrical connectors 541: 451:discharges, improper 402:proprietary protocols 394:digital communication 380: 2358:IEEE-1394 (FireWire) 2096:PCI Extended (PCI-X) 559:termination resistor 50:improve this article 2199:Parallel ATA (PATA) 1112:Secondary data link 1029:Receiver recognize 839:Other RJ-45 pinouts 573:connector (such as 303: 221:+6 VDC per pin 132: 2106:PCI Express (PCIe) 1749:"FAQ - LumenRadio" 1289:2011-10-20 at the 1187:Wireless operation 1126: 933: 886: 543: 529:intelligent lights 449:static electricity 441:theatrical rigging 418:intelligent lights 383: 301: 130: 2588:Network protocols 2570: 2569: 2556: 2283:Apple Desktop Bus 2260:PCI Express (via 2219:Serial ATA (SATA) 1905:Network on a chip 1521:on 1 January 2016 1379:978-0-9557035-2-2 1039: 1038: 515:. For example, a 453:cable termination 408:) to dimmers and 375: 374: 299: 298: 126: 125: 118: 100: 2600: 2562: 2561: 2554: 2016:HP Precision Bus 1830: 1823: 1816: 1807: 1806: 1769: 1768: 1766: 1764: 1745: 1739: 1738: 1736: 1734: 1715: 1709: 1708: 1706: 1705: 1685: 1679: 1678: 1676: 1674: 1665:. Archived from 1655: 1649: 1648: 1646: 1635: 1629: 1628: 1626: 1624: 1605: 1599: 1598: 1596: 1589: 1578: 1572: 1567: 1561: 1560: 1558: 1557: 1546:Stage Directions 1537: 1531: 1530: 1528: 1526: 1517:. Archived from 1507: 1498: 1497: 1491: 1483: 1481: 1480: 1474: 1468:. Archived from 1467: 1459: 1453: 1452: 1446: 1438: 1436: 1435: 1429: 1422: 1414: 1408: 1407: 1405: 1404: 1390: 1384: 1383: 1361: 1355: 1354: 1352: 1350: 1345:on 16 April 2013 1341:. Archived from 1331: 1322: 1321: 1319: 1317: 1303: 1297: 1280: 1169: 1004: 1003: 953:Mark-After-Break 903: 621: 552: 517:lighting console 495:Network topology 429:EIA-485 (RS-485) 412:devices such as 406:lighting console 322:Lighting control 311: 304: 300: 151:Lighting control 140: 133: 129: 121: 114: 110: 107: 101: 99: 58: 34: 26: 2608: 2607: 2603: 2602: 2601: 2599: 2598: 2597: 2573: 2572: 2571: 2566: 2557: 2548: 2507: 2486: 2435: 2348:IEEE-488 (GPIB) 2271: 2167: 2146:Infinity Fabric 1976:Europe Card Bus 1919: 1853: 1834: 1778: 1773: 1772: 1762: 1760: 1747: 1746: 1742: 1732: 1730: 1717: 1716: 1712: 1703: 1701: 1686: 1682: 1672: 1670: 1657: 1656: 1652: 1644: 1636: 1632: 1622: 1620: 1607: 1606: 1602: 1594: 1587: 1579: 1575: 1568: 1564: 1555: 1553: 1538: 1534: 1524: 1522: 1509: 1508: 1501: 1485: 1484: 1478: 1476: 1472: 1465: 1463:"Archived copy" 1461: 1460: 1456: 1440: 1439: 1433: 1431: 1427: 1420: 1418:"Archived copy" 1416: 1415: 1411: 1402: 1400: 1392: 1391: 1387: 1380: 1362: 1358: 1348: 1346: 1333: 1332: 1325: 1315: 1313: 1305: 1304: 1300: 1291:Wayback Machine 1281: 1277: 1272: 1238: 1209: 1189: 1171: 1167: 1164: 1135: 1122:Singapore Flyer 1114: 1101: 1099:DMX in practice 1092: 1090:8-bit v. 16-bit 1083: 1063: 1010:Min Break (μs) 998: 950:Break condition 937:data link layer 925: 917:RJ45 connectors 901: 890:XLR5 connectors 878: 841: 809: 800: 786: 783: 733: 711: 706: 701: 696: 694: 691: 676: 663: 652: 619: 600: 595: 547: 497: 480: 468: 439:or movement of 410:special effects 314: 242:250 kbit/s 143: 122: 111: 105: 102: 59: 57: 47: 35: 24: 17: 12: 11: 5: 2606: 2596: 2595: 2593:Stage lighting 2590: 2585: 2568: 2567: 2553: 2550: 2549: 2547: 2546: 2541: 2536: 2526: 2521: 2515: 2513: 2509: 2508: 2506: 2505: 2500: 2494: 2492: 2488: 2487: 2485: 2484: 2479: 2474: 2469: 2464: 2459: 2457:Intel HD Audio 2454: 2449: 2447:ADAT Lightpipe 2443: 2441: 2437: 2436: 2434: 2433: 2428: 2423: 2418: 2413: 2408: 2403: 2398: 2393: 2388: 2370: 2365: 2360: 2355: 2350: 2345: 2340: 2335: 2330: 2325: 2320: 2315: 2310: 2305: 2300: 2295: 2290: 2285: 2279: 2277: 2273: 2272: 2270: 2269: 2258: 2253: 2248: 2243: 2238: 2237: 2236: 2231: 2221: 2216: 2211: 2206: 2201: 2196: 2191: 2186: 2181: 2175: 2173: 2169: 2168: 2166: 2165: 2160: 2155: 2150: 2149: 2148: 2141:HyperTransport 2138: 2133: 2128: 2123: 2118: 2113: 2108: 2103: 2098: 2093: 2088: 2083: 2078: 2073: 2068: 2063: 2058: 2053: 2048: 2043: 2038: 2033: 2028: 2023: 2018: 2013: 2008: 2003: 1998: 1993: 1988: 1983: 1978: 1973: 1968: 1963: 1958: 1953: 1948: 1943: 1938: 1933: 1927: 1925: 1921: 1920: 1918: 1917: 1912: 1907: 1902: 1897: 1895:Bus contention 1892: 1887: 1882: 1877: 1872: 1870:Front-side bus 1867: 1861: 1859: 1855: 1854: 1851:computer buses 1833: 1832: 1825: 1818: 1810: 1804: 1803: 1798: 1793: 1788: 1777: 1776:External links 1774: 1771: 1770: 1753:lumenradio.com 1740: 1710: 1680: 1650: 1630: 1600: 1573: 1562: 1532: 1499: 1454: 1409: 1385: 1378: 1356: 1323: 1298: 1274: 1273: 1271: 1268: 1267: 1266: 1260: 1255: 1250: 1245: 1237: 1234: 1208: 1205: 1188: 1185: 1163: 1160: 1134: 1131: 1113: 1110: 1100: 1097: 1091: 1088: 1067: 1062: 1059: 1037: 1036: 1033: 1030: 1026: 1025: 1022: 1019: 1015: 1014: 1011: 1008: 997: 994: 961: 960: 957: 954: 951: 924: 921: 877: 874: 873: 872: 869: 866: 863: 860: 857: 854: 851: 844:Color Kinetics 840: 837: 836: 835: 828: 821: 808: 805: 782: 779: 759: 758: 755: 752: 749: 746: 743: 740: 737: 732: 729: 728: 727: 724: 721: 718: 715: 710: 707: 687: 651: 648: 599: 596: 594: 593:Physical layer 591: 503:topology with 501:multi-drop bus 496: 493: 479: 476: 467: 464: 398:stage lighting 373: 372: 369: 365: 364: 361: 357: 356: 353: 349: 348: 345: 339: 338: 335: 329: 328: 324: 323: 320: 316: 315: 312: 297: 296: 293: 289: 288: 285: 281: 280: 277: 273: 272: 269: 265: 264: 261: 257: 256: 252: 251: 248: 244: 243: 240: 236: 235: 231: 230: 227: 223: 222: 219: 215: 214: 210: 209: 206: 202: 201: 198: 194: 193: 190: 186: 185: 182: 178: 177: 174: 168: 167: 164: 158: 157: 153: 152: 149: 145: 144: 141: 124: 123: 38: 36: 29: 15: 9: 6: 4: 3: 2: 2605: 2594: 2591: 2589: 2586: 2584: 2581: 2580: 2578: 2565: 2551: 2545: 2542: 2540: 2537: 2534: 2530: 2527: 2525: 2522: 2520: 2519:Multidrop bus 2517: 2516: 2514: 2510: 2504: 2501: 2499: 2496: 2495: 2493: 2489: 2483: 2480: 2478: 2475: 2473: 2470: 2468: 2465: 2463: 2460: 2458: 2455: 2453: 2450: 2448: 2445: 2444: 2442: 2438: 2432: 2429: 2427: 2426:External PCIe 2424: 2422: 2419: 2417: 2414: 2412: 2409: 2407: 2406:Parallel SCSI 2404: 2402: 2399: 2397: 2394: 2392: 2389: 2386: 2382: 2378: 2374: 2371: 2369: 2366: 2364: 2361: 2359: 2356: 2354: 2351: 2349: 2346: 2344: 2341: 2339: 2336: 2334: 2331: 2329: 2326: 2324: 2321: 2319: 2316: 2314: 2311: 2309: 2306: 2304: 2301: 2299: 2298:Commodore bus 2296: 2294: 2291: 2289: 2286: 2284: 2281: 2280: 2278: 2274: 2267: 2263: 2259: 2257: 2254: 2252: 2249: 2247: 2246:Fibre Channel 2244: 2242: 2239: 2235: 2232: 2230: 2227: 2226: 2225: 2222: 2220: 2217: 2215: 2212: 2210: 2207: 2205: 2202: 2200: 2197: 2195: 2192: 2190: 2187: 2185: 2182: 2180: 2177: 2176: 2174: 2170: 2164: 2161: 2159: 2156: 2154: 2151: 2147: 2144: 2143: 2142: 2139: 2137: 2134: 2132: 2129: 2127: 2124: 2122: 2119: 2117: 2114: 2112: 2109: 2107: 2104: 2102: 2099: 2097: 2094: 2092: 2089: 2087: 2084: 2082: 2079: 2077: 2074: 2072: 2069: 2067: 2064: 2062: 2059: 2057: 2054: 2052: 2049: 2047: 2044: 2042: 2039: 2037: 2034: 2032: 2029: 2027: 2024: 2022: 2019: 2017: 2014: 2012: 2009: 2007: 2004: 2002: 1999: 1997: 1994: 1992: 1989: 1987: 1984: 1982: 1979: 1977: 1974: 1972: 1969: 1967: 1964: 1962: 1959: 1957: 1954: 1952: 1949: 1947: 1944: 1942: 1939: 1937: 1934: 1932: 1929: 1928: 1926: 1922: 1916: 1913: 1911: 1910:Plug and play 1908: 1906: 1903: 1901: 1900:Bus mastering 1898: 1896: 1893: 1891: 1888: 1886: 1883: 1881: 1878: 1876: 1875:Back-side bus 1873: 1871: 1868: 1866: 1863: 1862: 1860: 1856: 1852: 1849: 1845: 1843: 1838: 1831: 1826: 1824: 1819: 1817: 1812: 1811: 1808: 1802: 1799: 1797: 1794: 1792: 1789: 1787: 1783: 1780: 1779: 1758: 1754: 1750: 1744: 1728: 1724: 1720: 1714: 1699: 1695: 1691: 1684: 1669:on 2017-09-23 1668: 1664: 1660: 1654: 1643: 1642: 1638:ESTA (2004). 1634: 1618: 1614: 1610: 1604: 1593: 1586: 1585: 1577: 1571: 1566: 1551: 1547: 1543: 1536: 1520: 1516: 1512: 1506: 1504: 1495: 1489: 1475:on 2012-03-30 1471: 1464: 1458: 1450: 1444: 1426: 1419: 1413: 1399: 1395: 1389: 1381: 1375: 1371: 1367: 1360: 1344: 1340: 1336: 1330: 1328: 1312: 1308: 1302: 1296: 1292: 1288: 1285: 1279: 1275: 1264: 1261: 1259: 1256: 1254: 1251: 1249: 1246: 1243: 1240: 1239: 1233: 1231: 1227: 1221: 1218: 1213: 1204: 1202: 1201:Streaming ACN 1197: 1193: 1184: 1180: 1176: 1173: 1159: 1156: 1155:phantom power 1152: 1148: 1142: 1140: 1130: 1123: 1118: 1109: 1106: 1096: 1087: 1081: 1078: 1074: 1071: 1066: 1058: 1054: 1052: 1048: 1043: 1034: 1031: 1028: 1027: 1023: 1020: 1017: 1016: 1013:Min MAB (μs) 1012: 1009: 1006: 1005: 1002: 993: 989: 987: 982: 977: 975: 971: 966: 958: 955: 952: 949: 948: 947: 944: 942: 938: 929: 920: 918: 914: 910: 907: 897: 893: 891: 882: 870: 867: 864: 861: 858: 855: 852: 849: 848: 847: 845: 833: 829: 826: 822: 819: 818: 817: 814: 813: 804: 803: 796: 792: 790: 778: 776: 772: 768: 764: 756: 753: 750: 747: 744: 741: 738: 735: 734: 725: 722: 719: 716: 714:Signal Common 713: 712: 704: 698: 686: 683: 680: 679: 674: 669: 665: 661: 657: 647: 643: 641: 635: 633: 629: 623: 617: 612: 607: 605: 590: 588: 584: 580: 576: 572: 566: 564: 560: 556: 551: 540: 536: 532: 530: 526: 522: 518: 514: 513:slave devices 510: 506: 502: 492: 490: 485: 475: 473: 463: 461: 456: 454: 450: 446: 442: 438: 434: 430: 425: 421: 419: 415: 411: 407: 403: 399: 395: 391: 387: 379: 366: 358: 350: 344: 340: 334: 333:Hot pluggable 330: 325: 317: 310: 305: 294: 290: 286: 282: 278: 274: 270: 266: 263:Signal Common 262: 258: 253: 245: 237: 232: 224: 216: 211: 203: 195: 187: 179: 173: 169: 163: 162:Hot pluggable 159: 154: 146: 139: 134: 131:DMX connector 128: 120: 117: 109: 106:February 2011 98: 95: 91: 88: 84: 81: 77: 74: 70: 67: –  66: 62: 61:Find sources: 55: 51: 45: 44: 39:This article 37: 33: 28: 27: 22: 2051:TURBOchannel 1841: 1761:. Retrieved 1752: 1743: 1731:. Retrieved 1722: 1713: 1702:. Retrieved 1693: 1683: 1671:. Retrieved 1667:the original 1662: 1653: 1640: 1633: 1621:. Retrieved 1613:tsp.esta.org 1612: 1603: 1583: 1576: 1565: 1554:. Retrieved 1545: 1535: 1523:. Retrieved 1519:the original 1514: 1477:. Retrieved 1470:the original 1457: 1432:. Retrieved 1412: 1401:. Retrieved 1397: 1388: 1365: 1359: 1347:. Retrieved 1343:the original 1338: 1314:. Retrieved 1311:tsp.esta.org 1310: 1301: 1294: 1278: 1222: 1214: 1210: 1198: 1194: 1190: 1181: 1177: 1174: 1165: 1143: 1136: 1127: 1102: 1093: 1084: 1079: 1075: 1072: 1069: 1064: 1055: 1051:refresh rate 1046: 1044: 1040: 1018:Transmitted 999: 990: 978: 973: 962: 945: 934: 911: 898: 894: 887: 842: 831: 824: 815: 811: 810: 807:XLR-3 pinout 801: 797: 793: 788: 784: 777:phone jack. 771:twisted pair 760: 748:Not Assigned 745:Not Assigned 731:RJ-45 pinout 709:XLR-5 pinout 699: 689: 684: 681: 677: 670: 666: 653: 644: 640:ground loops 636: 631: 627: 624: 616:twisted pair 609:DMX512 is a 608: 601: 567: 562: 544: 533: 525:fog machines 498: 481: 469: 457: 437:pyrotechnics 426: 422: 414:fog machines 385: 384: 313:XLR3 pinouts 226:Max. current 218:Max. voltage 142:XLR5 pinouts 127: 112: 103: 93: 86: 79: 72: 60: 48:Please help 43:verification 40: 2524:CoreConnect 2503:ExpressCard 2431:Thunderbolt 2421:Camera Link 2204:Bus and Tag 1890:Address bus 1885:Control bus 1880:Daisy chain 1796:OpenDMX.net 1207:Development 1162:Termination 1147:microphones 981:hexadecimal 611:bus network 579:Cat 5e 509:daisy chain 343:Daisy chain 229:250 mA 172:Daisy chain 2577:Categories 2377:ACCESS.bus 2276:Peripheral 2076:InfiniBand 2071:HP GSC bus 1865:System bus 1704:2019-05-24 1694:LSi Online 1556:2019-05-24 1479:2011-08-11 1434:2016-06-28 1403:2020-04-12 1316:18 January 1270:References 1168:120 Ω 1133:Connectors 913:Cat5 cable 906:line-level 902:120 Ω 767:Category 5 650:Connectors 620:120 Ω 598:Electrical 583:Cat 6 575:Cat 5 213:Electrical 76:newspapers 2338:Lightning 2288:Atari SIO 2163:SpaceWire 1996:Zorro III 1936:S-100 bus 1931:SS-50 bus 1924:Standards 1844:standards 1837:Technical 1515:plasa.org 1339:usitt.org 799:adapters. 548:120  368:Connector 205:Connector 2564:Category 2539:Wishbone 2512:Embedded 2491:Portable 2411:Profibus 2343:DMX512-A 2229:Parallel 2081:Ethernet 1991:Zorro II 1941:Multibus 1842:de facto 1763:19 March 1757:Archived 1733:19 March 1727:Archived 1698:Archived 1673:19 March 1623:19 March 1617:Archived 1592:Archived 1550:Archived 1525:19 March 1488:cite web 1443:cite web 1425:Archived 1349:19 March 1287:Archived 1236:See also 1105:Ethernet 1047:channels 923:Protocol 871:Optional 868:Optional 865:Optional 862:Optional 859:Optional 830:Data 1+ 823:Data 1- 632:isolated 628:grounded 478:DMX512-A 390:standard 352:External 247:Protocol 181:External 65:"DMX512" 2544:SLIMbus 2498:PC Card 2482:TOSLINK 2172:Storage 2126:RapidIO 2006:FASTBUS 1961:STD Bus 1858:General 1398:Art-Net 1248:Art-Net 1230:Art-Net 935:At the 876:Cabling 853:Data 1+ 850:Data 1- 769:(Cat5) 751:Data 2- 742:Data 2+ 739:Data 1- 736:Data 1+ 604:EIA-485 587:Art-Net 521:dimmers 466:History 295:data 2+ 287:data 2- 279:data 1+ 271:data 1- 239:Bitrate 90:scholar 2477:S/PDIF 2368:1-Wire 2333:RS-485 2328:RS-423 2323:RS-422 2318:RS-232 2179:ST-506 2136:NVLink 1986:STEbus 1946:Unibus 1376:  1224:using 996:Timing 970:Framed 941:parity 856:Shield 820:Ground 789:cannon 658:style 386:DMX512 255:Pinout 92:  85:  78:  71:  63:  2472:McASP 2440:Audio 2385:SMBus 2381:PMBus 2363:UNI/O 2303:HP-IL 2256:SATAe 2241:ESCON 2214:HIPPI 2046:NuBus 2001:CAMAC 1971:Q-Bus 1966:SMBus 1951:VAXBI 1848:wired 1791:USITT 1784:from 1645:(PDF) 1595:(PDF) 1588:(PDF) 1473:(PDF) 1466:(PDF) 1428:(PDF) 1421:(PDF) 1370:PLASA 974:slots 965:break 505:nodes 388:is a 292:Pin 5 284:Pin 4 276:Pin 3 268:Pin 2 260:Pin 1 189:Cable 97:JSTOR 83:books 2529:AMBA 2467:MADI 2452:AES3 2313:MIDI 2266:NVMe 2262:AHCI 2224:SCSI 2209:DSSI 2184:ESDI 2061:SBus 2021:EISA 1956:MBus 1846:for 1839:and 1786:ESTA 1765:2018 1735:2018 1675:2018 1625:2018 1527:2018 1494:link 1449:link 1374:ISBN 1351:2018 1318:2024 1149:and 1120:The 763:8P8C 761:The 693:met: 673:8P8C 563:i.e. 527:and 484:ANSI 416:and 392:for 360:Pins 319:Type 234:Data 197:Pins 148:Type 69:news 2533:AXI 2462:I²S 2416:USB 2401:D²B 2396:SPI 2391:I3C 2373:I²C 2308:HIL 2293:DCB 2264:or 2251:SSA 2234:SAS 2194:SMD 2189:IPI 2111:AGP 2101:PXI 2091:PCI 2086:UPA 2066:VLB 2056:MCA 2041:VPX 2036:VXS 2031:VXI 2026:VME 2011:LPC 1981:ISA 1293:-- 1263:RDM 1226:ACN 1032:88 1024:12 1021:92 1007:-- 986:RDM 656:XLR 581:or 420:. 355:Yes 347:Yes 337:Yes 184:Yes 176:Yes 166:Yes 52:by 2579:: 2383:, 2379:, 1755:. 1751:. 1725:. 1721:. 1696:. 1692:. 1661:. 1615:. 1611:. 1548:. 1544:. 1513:. 1502:^ 1490:}} 1486:{{ 1445:}} 1441:{{ 1423:. 1396:. 1372:. 1368:. 1337:. 1326:^ 1309:. 1141:. 1035:8 943:. 832:or 825:or 642:. 634:. 577:, 531:. 523:, 447:, 2535:) 2531:( 2387:) 2375:( 1829:e 1822:t 1815:v 1767:. 1737:. 1707:. 1677:. 1627:. 1559:. 1529:. 1496:) 1482:. 1451:) 1437:. 1406:. 1382:. 1353:. 1320:. 550:Ω 371:1 363:3 208:1 200:5 119:) 113:( 108:) 104:( 94:· 87:· 80:· 73:· 46:. 23:.

Index

Multiplexer § Digital multiplexers

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Hot pluggable
Daisy chain

Hot pluggable
Daisy chain

standard
digital communication
stage lighting
proprietary protocols
lighting console
special effects
fog machines
intelligent lights
EIA-485 (RS-485)
communication protocol
pyrotechnics

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