According to foreign elites, in the installation of digital signage system, although the line distribution is always ignored, it is the determining factor of whether the equipment investment can play a role.

One of the most critical elements of the success of any digital signage device is that securely hidden behind the screen, along the floor or ceiling, or in the walls: wiring.

Although people think of wiring as an insignificant part of the whole device, many times it can make or break a digital signage project, especially when the high-resolution picture size has to be stretched to more than 45 inches.

High-resolution video can easily fail at this distance - even with the most expensive wires - because so much data has to be sent from the source to the screen.

Here I'll talk about a line that uses DVI and HDMI digital formats to transmit audio and video over non-network systems within a 45-foot control range. Within 45 feet, any high-quality DVI or HDMI cable can handle the task of digital transmission. Up to 45 feet away, digital signage operators who don't want their video degraded badly have a few different options.

In general, many installers simply rely on a signal booster located in the middle of two distant wires, which can boost the high-resolution signal up to 100 feet away and get a good response at the receiving end. The only downside is that the cost of high-quality DVI and HDMI cables over long distances can be quite high.

Another option is to use a sending-receiving extension system that uses CAT-5 wires to connect the data source to the screen, which is very economical. These systems can deliver high-definition video, audio, IR reverse channel, RS-232 and Ethernet signals using a single 330-foot wire.

With these additional solutions, network operators are able to go far beyond the limits of distance, increasing the amount of data they can deliver to distant screens while still using industry-standard wires.

Another benefit is that installers can easily plug it into wire installations at local and distant destinations. The only downside is that additional extension systems generally cost more than wires or intensifiers.

For very long distances of more than 330 feet or 100 meters, optical fiber transmission and reception systems can solve the signal problem. These solutions work much like the CAT-5 wire version, except that they can control distances of up to 12 miles. They are ideal for long-distance transportation that must travel between large equipment such as different buildings or sports arenas.

They are also an excellent choice for medical devices because of their EMI (electromagnetic interference) immunity. Despite being more expensive than other options, fiber optic transmit and receive systems perform well due to the excellent characteristics of the pipeline components.

Finally, non-network, wireless, high-resolution expansion systems began to take off in a big way. Although point-to-point wireless extenders are effective within 30 feet, some can transmit signals to several screens simultaneously within 100 feet. And that's just the beginning. Advancing wireless technology will make them as reliable as wired systems in the near future.

All in all, choosing the right wire or wireless device must be considered well in advance in order to properly plan and install digital signage. It is best to have all digital accelerators in the same digital domain, eliminating the problems that arise when integrating old devices or older versions with new digital screens.

It is important that installers make it easy for employees to operate digital signage displays. Without this, all operations should be as simple as "point-and-hit".