Latest revision as of 08:49, 23 July 2026

Essential Things to Know Before You Start

Learning computer networking is not difficult, but it does require a basic understanding of the hardware used to connect devices. This article introduces the networking concepts most commonly encountered in animated lighting displays.

Wire

The most common network cable used today is **Category 5e (Cat5e)** or **Category 6 (Cat6)** Ethernet cable. These cables are specifically designed to carry low-voltage digital data between network devices.

Ethernet cable contains eight conductors arranged as four twisted pairs. Each pair is twisted at a different rate to reduce electrical interference and improve signal integrity. Cat5e and Cat6 cable are available with either solid or stranded conductors, typically 24 AWG.

Because these cables are designed for data communication, they are **not** intended to carry high current or high voltage.

Ethernet cables typically use RJ45 connectors, making it easy to connect network devices.

Important: Just because a cable has an RJ45 connector, or a device has an RJ45 jack, does **not** mean it is an Ethernet network connection. In the animated lighting hobby, RJ45 connectors are also commonly used for serial communications, DMX, Renard, and other low-voltage signaling. Always verify what a connector is used for before plugging equipment together.

Older Ethernet installations sometimes used coaxial cable (10Base2), but modern lighting networks almost exclusively use Cat5e or Cat6 Ethernet cable.

Switches, Hubs, and Routers

To connect multiple devices together, a network typically uses switches and routers. These devices usually receive power from an external power supply or wall adapter.

Switch: A network switch is the preferred device for connecting multiple Ethernet devices. Switches intelligently direct traffic only to the intended destination, improving network performance and reducing unnecessary traffic.

Hub: Network hubs perform a similar function but simply repeat all incoming traffic to every connected device. Hubs have largely been replaced by switches and are rarely used today.

Router: A router connects different networks together and manages communication between them. In most home installations, the router connects the local network (LAN) to the Internet (WAN), assigns IP addresses, and directs network traffic.

Many home routers also include a built-in Ethernet switch, allowing several local devices to be connected directly.

Wireless Networking

A local area network (LAN) does not have to be wired. Many lighting controllers communicate using Wi-Fi, providing greater installation flexibility.

Wireless communication is extremely convenient but can be more susceptible to interference than wired Ethernet connections.

Common wireless devices include:

Wireless Router: A router that also provides Wi-Fi connectivity.

Wireless Access Point: Extends an existing wired network by allowing wireless devices to connect.

Many holiday lighting displays successfully use both wired and wireless networking, depending on the requirements of each controller.

Holiday Lighting Networks

Many hobbyists choose to operate their lighting controllers on a dedicated network separate from their home network. This can simplify controller configuration, reduce unnecessary network traffic, and make troubleshooting easier.

Whether using wired Ethernet, Wi-Fi, or a combination of both, careful network planning contributes to a reliable lighting display.

Getting Things Working

Networking problems are almost always configuration problems rather than hardware failures. If something doesn't work, carefully verify every network setting before assuming equipment is defective.

Some helpful troubleshooting suggestions include:

Keep your network configuration as simple as possible while testing.
If DHCP is available, use it initially to verify that devices communicate correctly before assigning static IP addresses.
Test Ethernet cables with an inexpensive network cable tester to verify all eight conductors are correctly connected.
For wireless networks, verify that a laptop, tablet, or smartphone can successfully connect to the wireless network.
If you are new to networking, spending a little time learning the basics through books, online tutorials, or videos will make troubleshooting much easier.

If you've verified your settings and still encounter problems, don't hesitate to ask for assistance on the forum. Many community members have extensive networking experience and are happy to help.

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-Learning computer networking is not horribly difficult but it does require some initial understanding of the electrical components required to make networking 'work.'
+= Essential Things to Know Before You Start =
-*''' Wire '''
+Learning computer networking is not difficult, but it does require a basic understanding of the hardware used to connect devices. This article introduces the networking concepts most commonly encountered in animated lighting displays.
-::The most common kind of wire used for computer networking today is called "category 5" or "category 6", abbreviated as cat5 or cat6. This wire is specifically designed to carry low voltage digital signals over a distance between a sending network device and a receiving device. You cannot substitute speaker wire or other kinds of wire in its place because the 8 wires that are inside a jacketed cat5 cable are paired, and each pair is twisted together at different twist intervals to help minimize noise and interaction between wire pairs. Cat5 cable contains either solid core wire or stranded wire, but in either case, the gauge of the wire is generally 24 gauge and has very thin insulation. Because it's rather tiny wire and does not have much insulation, cat5 wire is not a good choice for carrying high current or voltage loads. Cat5 wire uses plastic "crimp" plug connectors on the ends, making it easy to plug network devices together.
-:::'''Extremely important:''' '''Just because a cable has a cat5 crimp plug on the end, or because a device has a jack that looks like a cat5 plug can plug into it, do not automatically assume that it is a network connection or a network device. This hobby uses cat5 cable for both networking and for other low-voltage electrical connections between devices that are NOT actual network devices but may be serial communications and/or TTL signaling between various lighting equipment. Before plugging something in, find out what kind of devices are involved first.'''
+== Wire ==
-::Another kind of networking wire is coaxial wire, which is similar to TV coax cable. Generally RG58U is used, but because category 5 wiring is so much easier, less expensive and provides more options, coax is rarely used anymore. A coax-based network is typically called a 10-base-2 network and uses T-connectors and 50-ohm terminators to connect devices together. A serious drawback to 10-b-2 is that if a break in the network wire occurs, all the computers on that wire go down.
+The most common network cable used today is **Category 5e (Cat5e)** or **Category 6 (Cat6)** Ethernet cable. These cables are specifically designed to carry low-voltage digital data between network devices.
-*''' Switches, Hubs and Routers '''
+Ethernet cable contains eight conductors arranged as four twisted pairs. Each pair is twisted at a different rate to reduce electrical interference and improve signal integrity. Cat5e and Cat6 cable are available with either solid or stranded conductors, typically 24 AWG.
-::To have a network of multiple devices, one generally needs a way to interconnect them. Interconnections are the work of a network switches, hubs and routers. These devices require power, which is usually provided by simple wall warts. There are differences between the devices' functionalities and it's important to understand what they are. Almost exclusively these devices provide connections via convenient RJ45 plugs and cat5 wiring but some provide coaxial connections, too.
-::: '''SWITCH:''' Between a hub and a switch, this is the preferred device, is generally faster and is 'smart' in the sense that it remembers the connections between devices and automatically reconnects them for increased efficiency and communication speed.
+Because these cables are designed for data communication, they are **not** intended to carry high current or high voltage.
-::: '''HUB:''' This provides the same plug-in convenience that a switch does but it does not have the 'smart' electronics to remember connections. Consequently, traffic going through a hub has to search for and reestablish connections as needed which generally creates more network traffic, usually resulting in slower overall network performance.
+Ethernet cables typically use RJ45 connectors, making it easy to connect network devices.
-::: '''ROUTER:''' To differentiate between devices on a network and because there cannot be two devices on a network that have the same address, there must usually be some kind of traffic control system that assigns specific addresses to each device so that they may communicate with either other. The router performs this function so that communication "routes" can be created between devices. A router can also negotiate traffic between two different networks, such as between your local network and the internet. In this way, the router can translate and route data from one network to the other while keeping addresses completely unique. Many kinds of routers also incorporate convenient switch capability by providing four or more RJ45 jacks for other local network components. Dedicated routers normally include only two network connections: one for the WAN ("wide area network" or Internet) and one for the LAN ("local area network" or home network). Usually there is only one router on a LAN, and multiple switches and/or hubs can be connected to it, providing the capability to interconnect hundreds or even many thousands of devices.
+'''Important:''' Just because a cable has an RJ45 connector, or a device has an RJ45 jack, does **not** mean it is an Ethernet network connection. In the animated lighting hobby, RJ45 connectors are also commonly used for serial communications, DMX, Renard, and other low-voltage signaling. Always verify what a connector is used for before plugging equipment together.
-*''' Wireless '''
+Older Ethernet installations sometimes used coaxial cable (10Base2), but modern lighting networks almost exclusively use Cat5e or Cat6 Ethernet cable.
-::A LAN (local area network) doesn't have to be wired with cat5 or coax cabling; it can also be wireless. Some routers have miniature transmitters/receivers built into them so that their functionality can be extended to other wireless devices that operate in the same radio frequency range and channel. These frequencies and channels are predefined by the federal government for consistency and control. Wireless communication speeds are generally not quite as quick as wired connections and the very nature of using radio waves introduces the possibility of interference that is usually absent with wired connections. Nonetheless, wireless opens the door for unprecedented flexibility and convenience.
-::All this comes at a cost, however, insofar as wireless adds yet another layer or two of complexity to the networking pie. For example, there are wireless routers, wireless access points and wireless bridges, each of which has slightly different connectivity nuances to meet different needs. Space doesn't permit explaining everything in detail, but the following descriptions should provide some helpful information:
+== Switches, Hubs, and Routers ==
-::: '''Wireless Router:''' As its name implies, this is essentially a wired router with added wireless capability.
+To connect multiple devices together, a network typically uses switches and routers. These devices usually receive power from an external power supply or wall adapter.
-::: '''Wireless Access Point:''' Similar to a router but usually is not used to provide routing addresses; a wireless access point (AP) provides a way for wireless devices to connect to an existing wired network. In a way, it's probably more closely related to a wireless version of a switch.
+; '''Switch'''
+:A network switch is the preferred device for connecting multiple Ethernet devices. Switches intelligently direct traffic only to the intended destination, improving network performance and reducing unnecessary traffic.
-::: '''Wireless Bridge:''' Similar to a wireless access point, this can provide a translation function between two different networks, each having a different address or using a different communication protocol.
+; '''Hub'''
+:Network hubs perform a similar function but simply repeat all incoming traffic to every connected device. Hubs have largely been replaced by switches and are rarely used today.
-*''' Getting Things Working '''
+; '''Router'''
-::Networking can be tricky stuff. The networking gear for the blinky-flashy DIY'er works and works well. If you can't get it working, it is a virtual certainty that it's a configuration issue. Always, always, always check and recheck ALL your settings. When you think they're correct yet it still doesn't work, it's always because something is still NOT set correctly. Or, possibly, the unit isn't powered on. Before you go to the forum and post a comment such as "Need your help" or "It doesn't work" try some of the following suggestions:
+:A router connects different networks together and manages communication between them. In most home installations, the router connects the local network (LAN) to the Internet (WAN), assigns IP addresses, and directs network traffic.
-:::* Remove any security settings, passwords, encryption, etc. or any screwy settings you might have to keep people out of your network. More often than not, security settings are a huge cause of the "can't get it working" issue. Get things working first with the easiest possible networking settings and with no security.
+Many home routers also include a built-in Ethernet switch, allowing several local devices to be connected directly.
-:::* KISS. Keep It Simple Stupid! If DHCP addressing is available, try to use that first. Get it working to prove to yourself that the gear works. There's plenty of time to use dedicated IP addressing later when you inevitably will screw around with it.
+== Wireless Networking ==
-:::* With a wired network, TEST your network wiring to make sure it can work. This may involve purchasing an inexpensive cat5 network cable tester which tests all 8 wires in the cat5 cable. Don't be the person who causes all kinds of people in the forum to spin their wheels when all it turns out to be is a bad RJ45 plug or cat5 cable.
+A local area network (LAN) does not have to be wired. Many lighting controllers communicate using Wi-Fi, providing greater installation flexibility.
-:::* With a wireless network, make sure you can connect to your wireless router or access point with a laptop, tablet or smartphone to prove that the router is working and delivering DHCP connectivity.
+Wireless communication is extremely convenient but can be more susceptible to interference than wired Ethernet connections.
-:::* If you don't have any experience with networking connectivity at all, do not expect other forum members to teach it to you. That is completely unfair to them. Get a book, maybe a ''Networking for Dummies'' book to get started. If this sounds terribly unfriendly, it's the only reasonable response that can be made because other DIY'ers don't have unlimited time to offer help -- they have their own families, jobs and light shows and props to build and just because YOU don't have time (''or won't take the time'') don't expect to suck up all their spare time, too. DO IT YOURSELF.
+Common wireless devices include:
-:::* IF you've gone by the book and can verify that settings are correct but it still won't work, then please do post your problem in the forum. There are many, many members with professional expertise who are glad to review your problem and offer assistance. But posting in the forum should be the LAST resort, not the first.
+; '''Wireless Router'''
+:A router that also provides Wi-Fi connectivity.
+; '''Wireless Access Point'''
+:Extends an existing wired network by allowing wireless devices to connect.
+Many holiday lighting displays successfully use both wired and wireless networking, depending on the requirements of each controller.
+== Holiday Lighting Networks ==
+Many hobbyists choose to operate their lighting controllers on a dedicated network separate from their home network. This can simplify controller configuration, reduce unnecessary network traffic, and make troubleshooting easier.
+Whether using wired Ethernet, Wi-Fi, or a combination of both, careful network planning contributes to a reliable lighting display.
+== Getting Things Working ==
+Networking problems are almost always configuration problems rather than hardware failures. If something doesn't work, carefully verify every network setting before assuming equipment is defective.
+Some helpful troubleshooting suggestions include:
+* Keep your network configuration as simple as possible while testing.
+* If DHCP is available, use it initially to verify that devices communicate correctly before assigning static IP addresses.
+* Test Ethernet cables with an inexpensive network cable tester to verify all eight conductors are correctly connected.
+* For wireless networks, verify that a laptop, tablet, or smartphone can successfully connect to the wireless network.
+* If you are new to networking, spending a little time learning the basics through books, online tutorials, or videos will make troubleshooting much easier.
+If you've verified your settings and still encounter problems, don't hesitate to ask for assistance on the forum. Many community members have extensive networking experience and are happy to help.

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