【 Weak current College 】 film and stage lighting control system design (2)

Network configuration and technical requirements
1. the system wiring
For ShowNet system hardware architecture, its selection of wire can be according to the system size and distance between nodes. Visible from the table, with the exception of the fibre (10Base-FL), the effective transmission distance up to 10Base-2. Theoretically it should be the best choice, but in the overall system configuration, also should be noted that the distribution of the Terminal and lines. In a typical 10Base-2 design, the line must be added 50 Ω termination head as the load on the entire network. Segment to a maximum of 185m, straight, cable laying if there are gaps in the original two paragraphs will be paralyzed. Coupled with the interface and wire more expensive, unless you need to connect the two subsystems, generally do not recommend this wire.
The Add method such as 10Base-T star-shaped, the center part of the hub (Hub) connection. Its interface RJ45 connector similar to telephone equipment, and wire a twisted pair category 5 Ethernet cable (100Mb/s). This kind of advantages are: simple and straightforward, materials economy, insurance coefficient is high, in the event of either segment circuit breakers, other with network Distributor connection node can continue to work.
10Base-FL (optical fibre) normally used by a large network system. General design for each connection between subsystems, such as large outdoor concerts, theme park to each topic area.
2. system hardware
ShowNet system by dimming platform, network nodes, PC, and hubs. Dim table as the center of the entire system, and also the action interface. You can use Strand500, P series, etc. using Strand300 Ⅲ processor computer dimming platform, you can define as the primary control console, backup, and remote control machine of three models. Console as the core of the entire network, you can have the 18000 optical path and 32 DMX-512 segment to control the entire system. Backup computer over a network connection with the console, and uses the entire track backup (FullTrackingBackup) mode on the console. Remote control computer-based control console of the control console, in the large performance often requires the Division of treatment, such as host control, the traditional lamp control console control intelligent lights.
The network can be divided into: SN100, SN102, SN103 and SN104. SN100 and SN102 subject can provide DMX input/output, you can provide such as colour TV, MIDI, AUX, Reporter, remote control and a floppy drive, etc. A small cat 5 network cable can contain so many signal, this is the traditional DMX line. SN103 and SN104 only DMX input/output, AC-powered, SN103 as SN104 24-48V DC power supply.
Throughout the network, the PC has a very important role. PC can be loaded GeniusPro, ShowNetPro, Reporter and Server-to-peer software.
3. system software
Siquande lighting company developed in the lighting network digital dimming system application software, including: GeniusPro, Tracker, Communique, Networker, Reporter, Server and ShowNetConfiguration, etc. Different software in a network of different functions.
(1) The entire system or GeniusPro PC operating system. The software has a deal with 6000 light path, 8192 SI road, 2000, 1000, 2000 macro, 600 × 99 results step, 30 results show, 3000 time code (SMPTE), and other functions; in addition to the application in the light table, you can put into the PC as offline editing or PC Backup.
(2) Tracker for computer light control, broadly speaking, is to control all incoming DMX signal and start of equipment.
(3) Communique for the dimming platform on external signal connection interface, such as analog input trigger, SMPTE, MIDI and macro triggers, etc.
(4) Networker as stand-alone and network bridge between the present to 10Mb/s stable running, future running speed can be up to 100Mb/s.
(5) Server console for all programming concentrated in, the console can be achieved through its resource sharing.
(6) the network workstation for the PC platform and installed ShowNetConfiguration software that takes the whole system DMX address code assignment work, its powerful, paragraph 512 circuit in any circuit with other segments of any loop into a new segment. The latest version of ShowNet ShowNetPro more the original processing capacity from 16 to 32, 32 × 512 = 16384 DMX address code, this 32 hidden to the network matching belt Netslot, each one can freely mix or defined as input/output, in any one SN network node in one interface. Set is completed, you can switch to PCReporter reporting software, which you can obtain CD80SV dimming all information in the Cabinet, so that the lighting Division on the status of the work and the Cabinet to the great power of his hand.