Term
|
Definition
|
|
Term
| DMX was first published as the standard lighting protocol in what year? |
|
Definition
| 1986 – USITT publishes DMX512 Digital Data Transmission Standard for Dimmers and Controllers |
|
|
Term
|
Definition
| The United States Institute for Theater Technology |
|
|
Term
|
Definition
| Entertainment Services and Technology Association |
|
|
Term
| DMX is based on what protocol? |
|
Definition
| Based on TIA/EIA-485 protocol (RS 485) |
|
|
Term
| What is the refresh rate of a fully loaded universe of DMX? |
|
Definition
|
|
Term
|
Definition
Architecture for Control Networks.
A suite of control protocols that work together in order to distribute data over a network. |
|
|
Term
|
Definition
•Remote Device Management
•Bidirectional and includes error-checking
•Direction is controlled by the ASC (initiated by the controller)
•Controller “polls” the devices – asks a question, gets a response |
|
|
Term
|
Definition
•Bi-directional
•Alternate Start Codes (ASC) |
|
|
Term
|
Definition
| Evenly Spreading out the current draw across all legs of power |
|
|
Term
| Name 3 reasons to load balance your lighting system. |
|
Definition
-Reduce chance of overloading one leg
-Reduce neutral currents
-Reduce harmonic increase of current |
|
|
Term
| If a fixture draws 5 amps at 208 volts, how many total amps will this fixture draw from your entire power system? |
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
The Professional Lighting and Sound Association.
ESTA and PLASA merged. |
|
|
Term
| Whats Wrong with DMX? (According to Shawn) |
|
Definition
•512 channels
•Uni-directional
•8-bit parameters
•540 degrees of PAN
•256 steps of resolutions
•2.11 degrees of movement for each step increase
|
|
|
Term
| What is a FINE CHANNEL? What do they do? |
|
Definition
• 8-bit “Fine” channel + 8-bit “Course” channel
• Turns it into 16 bit resolution
• 540 degrees of pan
• 65536 steps
•.008 degrees per step |
|
|
