In the bright outdoor night scene, as long as the effect is achieved through an external controller, the two control systems of TTL and DMX512 are basically used. What is the difference between the two control systems? Guangchen Lighting has listed the following points.

1. The effect that can be presented; whether it is the outline effect or the screen effect, the effects that can be presented by the two control systems are the same.

2. Signal versatility; TTL needs to use the corresponding protocol of the lamp control chip. The chip protocols produced by different chip manufacturers may be different. If the same project purchases two control chips from different manufacturers, the effect cannot be linked or synchronized. Unite. DMX512 is an international general protocol, and the standard DMX512 is global. Lamps from different manufacturers can be used as long as they use the DMX512 protocol. The effect can be unified, and linkage synchronization can be realized. The large-scale light shows and stage lights we have seen are all controlled by DMX512 .

3. The number of lamps that can be brought; the number of lamps of the same type of TTL scheme that can be brought is more than that of DMX512. The DMX512 solution has relatively few lamps.

4. Later maintenance costs; TTL control adopts a series scheme, and the actual installation has a large number of lamps. This installation method has a characteristic. If the first lamp in series is broken, all the lamps in the series can not work normally. . It has a very serious impact on the use effect of the project. A broken light can incur very high maintenance costs.

The DMX512 control adopts a parallel scheme, single-point single-control, each lamp operates independently, and the failure of one lamp will not affect the normal use of other lamps. Only regular maintenance is required, and maintenance costs are greatly reduced. Therefore, some lighting projects with higher installation difficulty and higher floors will use lamps with DMX512 control scheme. Save expensive post-maintenance costs.

5. Cost; the cost of TTL of the same lamp is lower than that of DMX512, and the cost of finished products is higher than that of DMX512.