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[#]: subject: "Does an Ethernet splitter slow down speed?"
[#]: via: "https://www.debugpoint.com/ethernet-splitter-speed/"
[#]: author: "Arindam https://www.debugpoint.com/author/admin1/"
[#]: collector: "lkxed"
[#]: translator: "MCGA"
[#]: reviewer: " "
[#]: publisher: " "
[#]: url: " "
Does an Ethernet splitter slow down speed?
======
This post summarises detailed information about ethernet splitter, their speed, and different FAQ to help you choose the best hardware.
Switches, hubs, and ethernet splitters are just some of the networking equipment that helps to expand a network. Small ethernet splitters are the most basic of these devices. Ethernet splitters are small network devices that split one Ethernet signal into two. They are cost-effective while being easier to use. These are also some of the simplest networking devices, as they don’t need a power source and don’t have specific buttons or status LEDs on their bodies. There are just three ethernet ports on this tiny gadget, two on one side and one on the other. A short ethernet cable with an [RJ45][1] connection on one end and two ethernet ports on the other is included with some kinds.
Although splitters have been around for a long time in the networking world, many people still don’t know how to utilize them efficiently. Contrary to popular belief, ethernet splitters should always be purchased in pairs. Directly attaching one end of the splitter to the router and then connecting two devices to the splitter’s two ethernet ports on the other side will not work. There is a correct technique to set up ethernet splitters in a network to function correctly.
### How to do a Basic Setup using Ethernet Splitter
Ethernet splitters are handy for connecting two devices located in different rooms from the primary signal source. In most situations, they assist in conserving wires and network wall outlets and provide dependable connections. Ethernet splitters are sold in pairs, as previously stated. One splitter combines two signals from a device (usually the router), while the other separates the signals into two channels, allowing two devices to communicate.
You have a router in Room A and two PCs in Room B, but each room has just one ethernet wall jack. In this scenario, you’ll need one splitter, two cables connected to the router, the other end of the wires connected to the splitter, and one end of the splitter connected to the wall jack in Room A. This is where the router’s two signals are combined into one. Next, connect the side with one port to Room B’s wall jack via the other splitter. The combined signal from Room A will now be split into two, giving you two ethernet ports for the two devices in Room B.
The advantage of the splitter is it can significantly reduce the number of wall ports and cables you may require for your setup. It helps you to avoid “cable hell” because it reduces your required ports/cable by a factor of 2.
![sample diagram using ethernet splitter][2]
### Does an Ethernet splitter slow down speed?
Will my network connection become slow? This is one of the common questions that may arise in your mind. Well, the answer depends on the type of network you have. Ideally, splitters are of BASE-T standard, aka [Fast Ethernet][3]. And they support up to Mbps speed.
To answer, no, the splitters will not slow down the connection if utilized in a 100Mbps network. However, if your router can deliver 1Gbps and you put a splitter in the middle, the bandwidth will be limited to 100Mbps. The splitters did restrict the speed in this case, and the connection will be slower.
### Advantages and Disadvantages of Ethernet Splitters
Ethernet splitters can be helpful in some situations, but they also have several disadvantages. For starters, each ethernet port can only give a maximum speed of 100Mbps. Due to this limitation, resources in a network capable of providing more than 100Mbps will not be properly optimized. Furthermore, because the number of devices you may connect to is limited to just two, ethernet splitters are not the most greatest option if you have more than two devices connected.
Furthermore, if your router has one remaining ethernet port, using the splitters would be impractical; some sacrifices must be made. Furthermore, even though they reduce the number of cables required to join two networks, the arrangement still requires two splitters to function.
Ethernet splitters, on the other hand, have a few advantages. They are much less expensive than conventional networking devices and do not require a complex setup. Unlike other network devices, they also don’t need any software or configuration. In residential networks with fewer devices connected, such as a maximum of two devices in one room, Ethernet splitters are an excellent choice. Ethernet splitters are the greatest option if you only need a 100Mbps connection and only have two devices to connect.
Ethernet splitters have been around for a long time, but as simple as they are, there isn’t much that can be done to improve them. They’re still based on the outdated Fast Ethernet standard, which may or may not be as relevant in today’s demand for higher speeds. Even if they have their advantages, they aren’t a realistic solution in most circumstances. With today’s technical advancements, the future of ethernet splitters remains bright. A genius may be able to raise it to a [Gigabit Ethernet][4] standard.
Now that you get some idea about Ethernet Splitters, here are some of the frequently asked questions (FAQ) about them.
### Frequently Asked Questions
#### Can you split an Ethernet cable into two devices?
This is conceivable if you want to split an Ethernet wire across two devices. This will, however, necessitate the acquisition of an Ethernet cable sharing splitter kit. A splitter kit allows multiple devices to use the same Ethernet cable simultaneously. If you want to connect a PC and a laptop to the same cable or a PC and a game console, this is a good option.
An Ethernet cable will outperform any other sort of connection when it comes to connection speeds. When you require quick connectivity for activities like gaming, an Ethernet cable is always the best option.
It’s worth mentioning that you can’t connect two devices with a single Ethernet cable because they’re only designed for one, which is why you’ll need an Ethernet cable splitter. It attaches to an existing Ethernet wire and provides a connection between two devices.
#### How do I connect two devices to one Ethernet port?
Two devices can be connected to a single Ethernet port. However, as previously stated, you will require the usage of a cable-sharing kit. This is because each Ethernet connection is dedicated to a single device.
With an Ethernet cable sharing kit, you may connect many devices to a single Ethernet port, which is very handy for your home network. It’s beneficial if you’re throwing a LAN party and have a few Ethernet connections available.
It’s also worth mentioning that you could have more than one Ethernet port accessible. If this is the case, using one port for each device is always the best option. When this isn’t possible, a cable sharing kit or splitter is an excellent backup alternative.
#### What’s the difference between an Ethernet splitter and a switch?
An Ethernet splitter and a switch perform similar functions but are fundamentally distinct. An Ethernet splitter allows two independent connections to be made over the same Ethernet cable. It does, however, limit you to two connections. If you want to connect one additional device to the Ethernet connection, this is a good option. However, it is not compatible with any other devices.
If you want to connect many devices to a single Ethernet connection, you’ll need to buy an Ethernet switch. These are similar to Ethernet splitters, except they allow for connecting more than two devices. This is especially handy if you have a lot of devices to connect but only a few Ethernet ports, such as if you’re having a LAN party.
While they support stacking, it’s worth remembering that they’ll also require power. Another difference between them and a basic Ethernet splitter is that they do not require any electricity and may be attached directly to the Ethernet port.
#### Do I need an Ethernet switch or splitter?
The number of devices you want to connect will determine whether you need an Ethernet switch or a splitter. You can use an Ethernet splitter if you need to connect two devices and don’t want to utilize a power source.
On the other hand, an Ethernet switch is an ideal solution if you need to connect several devices. It allows you to connect several devices to a single Ethernet port, but it requires electricity.
I hope this guide helps you to get an idea about ethernet splitters and how to use them. You can buy them at any online store at low prices. However, if you need a speed of more than a hundred Mbps, you might need to set up wiring for your network. *[This post is part of our hardware guides.][5]*
*Featured Photo by Jainath Ponnala on Unsplash*
--------------------------------------------------------------------------------
via: https://www.debugpoint.com/ethernet-splitter-speed/
作者：[Arindam][a]
选题：[lkxed][b]
译者：[译者ID](https://github.com/译者ID)
校对：[校对者ID](https://github.com/校对者ID)
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
[a]: https://www.debugpoint.com/author/admin1/
[b]: https://github.com/lkxed
[1]: https://en.wikipedia.org/wiki/Registered_jack
[2]: https://www.debugpoint.com/wp-content/uploads/2021/10/sample-diagram-using-ethernet-splitter-1024x896.jpg
[3]: https://en.wikipedia.org/wiki/Fast_Ethernet
[4]: https://en.wikipedia.org/wiki/Gigabit_Ethernet
[5]: https://www.debugpoint.com/category/hardware

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[#]: subject: "Does an Ethernet splitter slow down speed?"
[#]: via: "https://www.debugpoint.com/ethernet-splitter-speed/"
[#]: author: "Arindam https://www.debugpoint.com/author/admin1/"
[#]: collector: "lkxed"
[#]: translator: "MCGA"
[#]: reviewer: " "
[#]: publisher: " "
[#]: url: " "
以太网分离器会降低网速吗？
======
这批文章详细总结了以太网分离器，以及它们的速度，还有常见问题等信息，来帮助你选择最合适的硬件。
<ruby>交换机<rt>Switch</rt></ruby>，<ruby>集线器<rt>Hub</rt></ruby>，还有<ruby>以太网分离器<rt>Ethernet Splitter</rt></ruby>是用来帮助扩展网络的网络设备。这其中，最基础的设备就是小巧的以太网分离器了。它们是可以将一个以太网信号分成两个的小型设备。它们简单易用，并且还便宜。这可以算是最简单的网络设备之一了，因为他们不需要提供电源，也不需要特定的按键或者 LED 灯来提示状态。只是在一个小设备上有三个以太网端口，其中两个在一侧，另一个在另一侧。有些品种是在一侧有带着一小段 [RJ45][1] 网线的连接，另一侧是两个以太网端口。
尽管在网络世界中，分离器已经存在了相当长一段时间了，很多人还是不知道如何有效使用它们。与普遍的看法相反的是，以太网分离器应该总是成对购买。直接把分离器的一端和路由器连接，再把两个设备与分离器的两个端口连接，这样是不行的。想让分离器在网络中正常工作，是有一个正确的设置技巧的。
### 如何使用以太网分离器进行一个基本的设置
要从主信号源连接两个在不同房间的设备，以太网分离器是非常方便的。大多数情况下，它们可以节约网线、墙上的网络出口，以及提供可靠的连接 。就像之前说的，以太网分离器是成对卖的。一个分离器把信号从设备（通常是路由器）上合并，然后另一个把信号分成两个信道，这样就可以让两个设备通信了。
路由器在房间 A，两个 PC 在房间 B，但是每个房间的墙上只有一个以太网接口。这种情况下，就需要一个分离器，两条网线网线连到路由器上，网线的另外一端连到分离器上，然后分离器的另一端连到房间 A 墙上的接口。这样路由器的两个信号就合并到一起了。接下来，另一个分离器只有一个端口的那一端接到房间 B 墙上的接口上。从房间 A 合并的信号现在就会分成两个，这样在房间 B 里面，你就可以有两个以太网端口了。
分离器的优势是它可以大量减少墙上的接口，也会大量减少你这种情况下所需的网线。它会帮你避免“网线地狱”，因为这样会以 2 的倍数降低所需要的端口/网线。
![sample diagram using ethernet splitter][2]
### 以太网分离器会降低网速吗？
网络连接会变慢吗？这可能是你想到的常见问题之一。好吧，答案取决于你的网络类型。理想情况下，分离器是 BASE-T 标准，也就是<ruby>快速以太网<rt>Fast Ethernet</rt></ruby>。它们可以支持高达 Mbps 的速度。
答案是不，如果分离器在一个 100Mbps 的网络中使用，它是不会降低网速的。然而，如果你的路由器可以传输 1Gbps，然后你在中间用了一个分离器，那么带宽将被限制在 100Mbps。这种情况下，分离器确实会限制速度，连接会变慢。
### 以太网分离器的优势和劣势
以太网分离器在一些情况下很有用，但是它们也有一些缺点。对于小白来说，每个以太网端口只能提供最高 100Mbps 的速度。因为这个限制，网络中能够提供高于 100Mbps 的资源就不能被合理优化了。另外，因为你能连接的设备数量被限制在两个，如果你有两个以上的设备，以太网分离器并不是最佳选择。
此外，如果路由器只剩下一个以太网端口，使用分离器是不现实的；这时候就只能做一些牺牲了。然后，尽管它们可以减少把两个网络合并所需要的网线，这种方式需要两个分离器才能工作。
相反的，以太网分离器也有一些优势。它们比起常见的网络设备要便宜，也不需要复杂的设置。不像其他网络设备，它们也不需要软件和其他配置。在设备不多的家庭网络中，比如说一个房间最多两个设备，以太网分离器是一个绝佳的选择。如果你只需要 100Mbps 的网络，只有两个设备要连接，以太网分离器是最好的选项。
以太网分离器出现已经很长时间了，但是由于非常简单，也没有太多可以改进的空间。它们仍然是基于过时的<ruby>快速以太网<rt>Fast Ethernet</rt></ruby>标准，这也许和今天高速网络的需求有点格格不入。尽管有它们的优势，大多数情况下，它们还真不是一个现实的解决方案。随着现在技术的进步，以太网分离器的前景依然光明。也许某个天才可以让他用在<ruby>千兆以太网<rt>Gigabit Ethernet</rt></ruby>标准上。
现在你已经对以太网分离器有一些了解了，下面是一些常见问题（FAQ）。
### 常见问题
#### 可以把一条以太网线分到两个设备上吗？
如果你想把一条以太网线分到两个设备上，这是可以想象的。然而，这就需要买一个以太网线共享分离套件。分离器套件可以让多个设备同时使用同一条网线。如果你想把 PC 和笔记本，或者 PC 和游戏主机，同时连到同一个网线上，这是个不错的选择。
说到连接速度，以太网线会超过其他连接方式。当有些东西需要快速连接，比如说游戏，以太网线通常都是最好的选择。
需要指出的是，你不能用一个网线连接两个设备，因为它们只是为一个设备而设计的，这也就是为什么你需要一个以太网分离器。它会连到一个已有的网线上，然后为两个设备提供连接。
#### 我怎么把两个设备连到一个以太网端口？
两个设备可以连到一个以太网端口。然而，就像之前说的，你需要使用网线共享套件。这是因为每个以太网连接是为一个单个设备设计的。
有了以太网线共享套件，你就可以给一个以太网端口连上多个设备了，这对于家庭网络来说是非常方便的。如果你有几个以太网连接可用，然后需要很多的 LAN 连接，这肯定有用。
还需要说的一点是，如果你有多余的以太网端口可用，如果是这种情况，最好的选择是给每个设备分配一个端口。当这种情况不行的时候，网线共享套件或者分离器是一个完美的备选方案。
#### 以太网分离器和交换机有什么区别？
以太网分离器和交换机工作起来差不多，但是从根本上是不同的。以太网分离器可以在同一根以太网线上运行两个独立的连接。然而，这最多就是两个连接。如果你只想要一个另外的设备连到这个以太网上，这是个不错的选择。但是，再有其他设备就不行了。
如果你想往一个以太网连接上连很多个设备，就需要买一个以太网交换机。除了可以允许多于两个设备连接外，交换机和以太网分离起相似。如果有很多要连接的设备，但是只有几个以太网端口，交换机是非常方便的，比如说你正在连接很多设备到 LAN。
在他们支持多个设备的时候，需要记住的是，它们也需要供电。交换机和分离器的另一个不同是，分离器不要供电，可以直接连到以太网端口。
#### 我需要以太网交换机还是分离器？
你要连接的设备的数量决定了是需要一个交换机还是分离器。如果只需要连两个设备，可以用以太网分离器，也不用给他供电。
相反的，如果需要连好几设备，以太网交换机是一个理想的解决方案。它可以连接几个设备到同一个以太网端口，但是它需要供电。
我希望这篇指南能帮你了解以太网分离器以及如果使用它们。从网上可以以很低的价格买到。然而，如果需要超过 100Mbps 的速度，也许你需要给你的网络配置一下线路。 *[这篇文章是我们硬件指南的一部分。][5]*
*Featured Photo by Jainath Ponnala on Unsplash*
--------------------------------------------------------------------------------
via: https://www.debugpoint.com/ethernet-splitter-speed/
作者：[Arindam][a]
选题：[lkxed][b]
译者：[Yufei-Yan](https://github.com/译者ID)
校对：[校对者ID](https://github.com/校对者ID)
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
[a]: https://www.debugpoint.com/author/admin1/
[b]: https://github.com/lkxed
[1]: https://en.wikipedia.org/wiki/Registered_jack
[2]: https://www.debugpoint.com/wp-content/uploads/2021/10/sample-diagram-using-ethernet-splitter-1024x896.jpg
[3]: https://en.wikipedia.org/wiki/Fast_Ethernet
[4]: https://en.wikipedia.org/wiki/Gigabit_Ethernet
[5]: https://www.debugpoint.com/category/hardware