aLTERNATE START CODES

The Alternate START Code Database is a record of all the known Alternate START Codes used in communications conforming to the USITT DMX512/1990 and ANSI E1.11-2004 standards. Please note that until ANSI E1.11-2004 was published, there was no formal procedure for registering Alternate START Codes, only an informal procedure of notifying one of the original authors of USITT DMX512, who kept a list of the Codes. Thus, some manufacturers implemented Alternate START Codes in products without assurance that the START Codes were not already being used by other manufacturers and without advertising the START Codes so that other manufacturers would not later adopt the same code for a different message type. ANSI E1.11 formalizes the Alternate START Code registration procedure. The publication of this database makes the known Alternate START Codes and their purposes available to the public.

The number of Alternate START Codes is limited to 255 possible values and many of these are already assigned or in use. Therefore, it is necessary to conserve the number of ASCs that remain for those few occasions when only an ASC will serve the purpose. Manufacturers are encouraged to obtain a two-byte Manufacturer's ID and to use it with Alternate START Code 91h to create a proprietary message in lieu of using a proprietary Alternate START Code. In those few cases where a proprietary message of more than 510 bytes following the START Code must be sent, an ASC may be used, but only one ASC will be assigned per manufacturer.

Any manufacturer wishing to register a new Alternate START Code may do so by sending information about the code to ESTA's Technical Standards Manager at . This information must include the Code's value, a brief description of its purpose, the company's name and address, and contact details for a person to whom questions about the Alternate START Code may be addressed. Contact details would include telephone and fax numbers, and email address.

Below is a listing of all registered and known DMX512, DMX512/1990, and ANSI E1.11-2004 Alternate START Codes.

Dec	Hex	Registered To	Description	Formally Registered Y/N
0	00h	USITT	Default Null Start Code for Dimmers per DMX512 & DMX512/1990	Y
1	01h	T-Recursive	Most significant Byte of double precision transmission	Y
1	01h	Soundlight	Undisclosed	N
1	01h	Mode Lighting		N
2	02h	T-Recursive	Following packet is 256 16-Bi words in Lo byte/Hi byte order	Y
3	03h	R.A. Gray	Undisclosed	Y
4	04h	T-Recursive	Checksum Message	Y
5	05h	T-Recursive	Answerback Query	Y
6	06h	T-Recursive	16 bit Lo byte	Y
7	07h	T-Recursive	Compressed data	Y
8	08h	T-Recursive	Compressed 16-bit data	Y
9	09h	Entertainment Technology	Undisclosed	Y
10	0Ah	Mode Lighting	Second universe of 512 channels on one data link.	Y
11	0Bh	Goddard Design Co.		Y
12	0Ch	S G M Elettronica Srl.		Y
13	0Dh	Engineering Arts		Y
14	0Eh	C.I.Tronics Lighting Designers Ltda	Minimum packet length: 4 bytesMaximum packet length: 513 bytesDescription: We would use our own alternate start code to send configuration informations to our devices. Also, we would like to use the possibility of two-way communication to get the status of these devices.	Y
15	0F	Morpheus Lights		Y
16	10h	ADB	Undisclosed	Y
17	11h	Tokyo Broadcast Systems Inc.	Undisclosed	Y
18	12	BJA Electronics	For updating the firmware in my equipment and to control it (Reset). My packet size will between the 3 and 256 bytes.	Y
19	13	Zero 88		Y
20	14h	Soundsculpture Incorporated	We are implementing a message-based protocol that is optimized for safe and secure motor control, embedded with lighting control. A unique Start Code is the ideal way to identify this alternate data type on the DMX network, while keeping packets as short as possible.	Y
21	15h	CDCA Ltd.	Firmware update and configuration info	Y
22	16h	Peradise	We build specialFx and moving set parts. The startcode will be used to identify data that is used for tacticle feedback from devices (Position, status, errors, etc).	Y
23	17h	Artistic Licence (UK) Ltd.	Text Packet (matches use in ANSI E1.11)	Y
23	17h	E1	ANSI E1.11 Text Packet	Y
24	18h	Andera Ltd.	Undisclosed	Y
25	19h	Hubbell Entertainment, Inc.		Y
26	1Ah	Integrated Theatre, Inc.	Well, I'm still convinced that we need to develop some (more) uses for the 2nd pair, and I have several ideas in mind. The ASC data would be used on the first pair in conjunction with the 2nd pair data. That way in systems that only had the 1st pair wired some functionality could still be had, but more could be gained by using both pairs. My thought is to develop these things as open standards, and if there is enough interest turn them over to ESTA for development into a consensus standard.	Y
27	1Bh	Espace Concept	The purpose is to toggle inner program of the receiver. If the Start code is 0, the machine answers with Program 1. If the Start code is 27, the machine answers with Program 2. Rest of the DMX trame would remain exactly the same as in USITT description. The purpose for us is to control different types of machines with the same DMX values (Program 2) using a switch box sending Start Code 27 and predetermined DMX values. The program run by Start Code 0 would be adapted to a fader control.	Y
28	1Ch	KLH Electronics PLC	The alternate byte is to provide real-time updates for triple precision data ( either 20 or 24 bit ) for use with Photon Cannon project. This will allow the use of the standard to control 100 lamp fixtures at greater than 75 Hz update rate	Y
29	1Dh	Dangeross Design	DMX512 slots with 8 data bits, Even parity, and 1 Stop bit	Y
33	21h	ELETTROLAB S.r.l.	unknown	Y
38	26h	High End Systems	Undisclosed Configuration	Y
48	30h	Pr-Lighting Ltd.	The Start Code purpose for now is to be able to perform firmware updates to our products. In the future we might add more functions to it.	Y
51	33h	TESI Elettronica srl	The start code's purpose is to send/receive application specificinformations and execute product software update.	Y
55	37h	TIR Systems Ltd.	Programmable DMX512-based LED controllers. Alternate START code used to specify various operating parameters for DMX512 network and standalone operation. Min.frames: 15; Max frames: 40 (current), 512 (reserved for future expansion)	Y
60	3Ch	AVAB	AVAB Internal Functions	Y
61	3Dh	AVAB	Smart 16 Bit Format	Y
62	3Eh	AVAB America	Manufacturer-specific configuration data.	Y
63	3Fh	SAND Network Systems, Inc.	Manufacturer-specific configuration data.	Y
65	41h	Microlite	Undisclosed	Y
66	42d	LSC Lighting Systems (Aust) Pty. Ltd.	Proprietary remote peripheral control	Y
67	43h	City Theatrical, Inc.	Purpose: firmware updates and product configuration	Y
68	44h	Coemar Spa		Y
72	48h	Enfis Ltd.	ASC is used for passing proprietary data for applications such as factory test, configuration, and software update.	Y
76	4Ch	Phoenix Service	4Ch is the START Code used for OpenDMX messages, a protocol developed for use on LUX Italia products, and published by them for royalty-free use by anyone. Visit the LUX Italia website (http://www.luxitalia.eu) for a copy of the specification.	Y
77	4Dh	Avolites Ltd.	Proprietary function with ART2000 products	Y
79	4Fh	Oscar Lighting AB	Backup States - Undisclosed	Y
80	50h	LightProcessor Ltd		Y
85	55h	E1	Test Packet	Y
87	57h	Wybron, Inc.		Y
131	83h	Anytronics Ltd.	To synchronise both the memory contents and the internal clocks of lighting control equipment. Min packet length 24 bytes. Max 512.	Y
138	8Ah	CLAY PAKY S.p.A	None given. Proprietary.	Y
139	8Bh	Martin Professional		N
144	90h	E1	90h is reserved for future expansion	Y
145	91h	E1	91h followed by a 2 byte Manufacturer ID field is reserved for Manufacturer/Organization specific use	Y
146	92h	E1	Reserved for Future Expansion of the DMX512 Standard	Y
147	93h	E1	Reserved for Future Expansion of the DMX512 Standard	Y
148	94h	E1	Reserved for Future Expansion of the DMX512 Standard	Y
149	95h	E1	Reserved for Future Expansion of the DMX512 Standard	Y
150	96h	E1	Reserved for Future Expansion of the DMX512 Standard	Y
151	97h	E1	Reserved for Future Expansion of the DMX512 Standard	Y
152	98h	E1	Reserved for Future Expansion of the DMX512 Standard	Y
153	99h	E1	Reserved for Future Expansion of the DMX512 Standard	Y
154	9Ah	E1	Reserved for Future Expansion of the DMX512 Standard	Y
155	9Bh	E1	Reserved for Future Expansion of the DMX512 Standard	Y
156	9Ch	E1	Reserved for Future Expansion of the DMX512 Standard	Y
157	9Dh	E1	Reserved for Future Expansion of the DMX512 Standard	Y
158	9Eh	E1	Reserved for Future Expansion of the DMX512 Standard	Y
159	9Fh	E1	Reserved for Future Expansion of the DMX512 Standard	Y
160	A0h	E1	Reserved for Future Expansion of the DMX512 Standard	Y
161	A1h	E1	Reserved for Future Expansion of the DMX512 Standard	Y
162	A2h	E1	Reserved for Future Expansion of the DMX512 Standard	Y
163	A3h	E1	Reserved for Future Expansion of the DMX512 Standard	Y
164	A4h	E1	Reserved for Future Expansion of the DMX512 Standard	Y
165	A5h	E1	Reserved for Future Expansion of the DMX512 Standard	Y
166	A6h	E1	Reserved for Future Expansion of the DMX512 Standard	Y
167	A7h	E1	Reserved for Future Expansion of the DMX512 Standard	Y
168	A8h	E1	Reserved for Future Expansion of the DMX512 Standard	Y
169	A9h	E1	Reserved for Future Expansion of the DMX512 Standard	Y
170	AAh	SUN	Undisclosed - bi-directional data transfer	Y
171	ABh	E1	Reserved for Future Expansion of the DMX512 Standard	Y
172	ACh	E1	Reserved for Future Expansion of the DMX512 Standard	Y
173	ADh	E1	Reserved for Future Expansion of the DMX512 Standard	Y
174	AEh	E1	Reserved for Future Expansion of the DMX512 Standard	Y
175	AFh	E1	Reserved for Future Expansion of the DMX512 Standard	Y
176	B0h	E1	Reserved for Future Expansion of the DMX512 Standard	Y
177	B1h	E1	Reserved for Future Expansion of the DMX512 Standard	Y
178	B2h	E1	Reserved for Future Expansion of the DMX512 Standard	Y
179	B3h	E1	Reserved for Future Expansion of the DMX512 Standard	Y
180	B4h	E1	Reserved for Future Expansion of the DMX512 Standard	Y
181	B5h	E1	Reserved for Future Expansion of the DMX512 Standard	Y
182	B6h	E1	Reserved for Future Expansion of the DMX512 Standard	Y
183	B7h	E1	Reserved for Future Expansion of the DMX512 Standard	Y
184	B8h	E1	Reserved for Future Expansion of the DMX512 Standard	Y
185	B9h	E1	Reserved for Future Expansion of the DMX512 Standard	Y
186	BAh	E1	Reserved for Future Expansion of the DMX512 Standard	Y
187	BBh	E1	Reserved for Future Expansion of the DMX512 Standard	Y
187	BBh	Martin Professional A/S	Undisclosed. Conflicts with area reserved for Future Expansion of the DMX512 Standard.	N
188	BCh	E1	Reserved for Future Expansion of the DMX512 Standard	Y
189	BDh	E1	Reserved for Future Expansion of the DMX512 Standard	Y
190	BEh	E1	Reserved for Future Expansion of the DMX512 Standard	Y
191	BFh	E1	Reserved for Future Expansion of the DMX512 Standard	Y
192	C0h	E1	Reserved for Future Expansion of the DMX512 Standard	Y
193	C1h	E1	Reserved for Future Expansion of the DMX512 Standard	Y
194	C2h	E1	Reserved for Future Expansion of the DMX512 Standard	Y
195	C3h	E1	Reserved for Future Expansion of the DMX512 Standard	Y
196	C4h	E1	Reserved for Future Expansion of the DMX512 Standard	Y
197	C5h	E1	Reserved for Future Expansion of the DMX512 Standard	Y
198	C6h	E1	Reserved for Future Expansion of the DMX512 Standard	Y
199	C7h	E1	Reserved for Future Expansion of the DMX512 Standard	Y
200	C8h	E1	Reserved for Future Expansion of the DMX512 Standard	Y
201	C9h	E1	Reserved for Future Expansion of the DMX512 Standard	Y
202	CAh	E1	Reserved for Future Expansion of the DMX512 Standard	Y
203	CBh	E1	Reserved for Future Expansion of the DMX512 Standard	Y
203	CBh	Martin Professional		N
204	CCh	E1	E1.20 (RDM) start code	Y
205	CDh	E1	Reserved for Future Expansion of the DMX512 Standard	Y
206	CEh	E1	Reserved for Future Expansion of the DMX512 Standard	Y
207	CFh	E1	ANSI E1.11 System Information Packet	Y
208	D0	eldoLED Ltd.	Configuration, firmware updates and standalone configuration. Framelength to vary from 12 to 512 bytes.	Y
221	DDh	Electronic Theatre Controls	Alternate start code DD is for use in transmitting per channel priority for use in merging streams in multi-source DMX applications. Priorities will range from 0 at the low end, which means do not use the data in the corresponding slot, to 200, which means use this data over any slot data supplied with a priority between 0 and 199. Values above 200 are reserved for future use.	Y
222	DEh	Martin Professional		N
223	DFh	Doug Fleenor Design, Inc.	Undisclosed	Y
223	DFh	Martin Professional A/S	Undisclosed. Conflicts with previously registered Doug Fleenor Design code.	N
224	E0h	NSI/Colortran	ENR Mode Control	Y
224	E0h	Martin Professional A/S	Undisclosed. Conflicts with registered NSI/Colortran ENR Mode Control.	N
225	E1h	NSI/Colortran	Dim/Non-Dim Control	Y
239	EDh	Electronics Diversified, Inc.	Download Dimmer Information - Undisclosed	Y
239	EDh	Martin Professional		N
240	F0h	E1	Prototyping/experimental use Only while the manufacturer/organization is waiting for their registered Alternate START Code to be assigned	Y
241	F1h	E1	Prototyping/experimental use Only while the manufacturer/organization is waiting for their registered Alternate START Code to be assigned	Y
242	F2h	E1	Prototyping/experimental use Only while the manufacturer/organization is waiting for their registered Alternate START Code to be assigned	Y
243	F3h	E1	Prototyping/experimental use Only while the manufacturer/organization is waiting for their registered Alternate START Code to be assigned	Y
244	F4h	E1	Prototyping/experimental use Only while the manufacturer/organization is waiting for their registered Alternate START Code to be assigned	Y
245	F5h	E1	Prototyping/experimental use Only while the manufacturer/organization is waiting for their registered Alternate START Code to be assigned	Y
246	F6h	E1	Prototyping/experimental use Only while the manufacturer/organization is waiting for their registered Alternate START Code to be assigned	Y
247	F7h	E1	Prototyping/experimental use Only while the manufacturer/organization is waiting for their registered Alternate START Code to be assigned	Y
255	FFh	AVO	Dimmer Curve Select	Y