How your computer will communicate with the LED sign is a matter of budget, preference and what your sign contractor has to offer and is qualified to set up. Following are five main types of LED sign communication systems common in the industry.
1. Wireless Methods
Wireless technology is useful in the LED sign industry. A computer can connect to an LED sign wirelessly in many ways, but certain conditions must be met. The sign must be within 100 to 200 yards of the origin of the transmission and it must have a clear path so the data can be sent and received effectively.
Radio frequency, which transmits data at speeds of 900 megahertz, is a good option when the connection must span a long distance, but the speed of information transmission is typically slower.
Wi-Fi transmits data at faster speeds of 2.4 gigahertz, and encryption can be incorporated so the information is only accessible to those with the password. You can enhance the connection to a 5 GHz data rate, which is both more secure and more efficient.
2. Phone Modem
If the connecting computer has a phone modem, a line can be run from the sign to the computer. Data can be sent via phone modem for a charge from the phone service provider. The speeds and efficiency will vary depending on the service and the strength of the connection.
3. Fiber Optics
Fiber optic cables can transmit data quickly. They are ideal for communication streams that must transmit large file sizes over long distances. Fiber optic communication can stretch up to 40 miles.
4. Serial Cables
Serial cables work as a transmission method when the distance between the sign and the computer is short - less than 50 feet - and when only basic messages are being sent rather than extensive files. Since many computers may not have the necessary port for this cable to connect to, a converter may have to be used.
5. Ethernet TCP/IP
Using TCP/IP over Ethernet is the most common of all LED sign communication systems. The sign connects to the Ethernet card installed in the computer for message transmission. The cable alone can reach 300 feet, but can be extended if necessary. Ethernet TCP/IP is more dependable and durable than fiber optic cables and does not require any convertors or adapters.
When analyzing LED sign communication systems, be sure to talk to those experienced in the sign installation and repair industry before you decide what to buy. In some cases, choosing a main system then installing a backup in case of communication failure is a good way to go. Professionals can point you toward one of the LED sign communication systems that will require the least updating and troubleshooting, and the provide the best investment over the long term.
Jen Stott is a writer and blogger, and works as the Content Director at Be Locally SEO in Salt Lake City, Utah
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