ZyXEL Communications PLA-470 - Manual (Page 20)

Chapter 1 Introducing the PLA-4xx
PLA-4xx Series User’s Guide
20
1.3 Coaxial Cable Networks with the PLA402 v2
The PLA402 v2 allows you to be more flexible in expanding your network by adding the
coaxial cable capability.
Figure 2 Expand Your Network with the PLA402 v2 over Coaxial Cable Wiring
As well as being able to connect your PLA402 v2 to a power outlet, you also have the option
of connecting to a coaxial cable outlet. Connect other powerline adapters in your powerline
network to coaxial cable outlets on the same line. Then set up your network with additional
devices such as a computer or printer the same way you would set up a powerline network on
an electrical circuit.
A coaxial connection has a far greater range than a powerline connection. This enables you to
set up networks for large areas.
If you are setting up a coaxial connection in a room with only one coaxial outlet you can use a
coaxial splitter to connect more than one device. For example, if you want to connect a TV and
a PLA402 v2 to a single outlet you could use a coaxial splitter.
1.4 PLA491 Power Strip with EMI Filter
The PLA491 is a powerline adapter and power strip for connecting electric devices. The power
outlets each have an EMI (Electromagnetic Interference) filter that reduces interference on the
power circuit from applicances such as hairdryers and lamps. Devices that cause interference
may reduce the speed of the traffic in your powerline network.
For an example of interference on a powerline network please refer to the
Electromagnetic
Interference Example on page 82 .
The following figure shows devices connected to the PLA491’s power outlets. A cell phone
charger can cause EMI on the power circuit so it is connected to a filtered power outlet on the
PLA491 to reduce any possible interference.