Crestron ZUMMESH-JBOX-20A-PLUG handleiding

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10 • Installation and Setup of Crestron RF Products Best Practices – DOC. 6689H

4. When networks such as infiNET EX or Zūm are installed, remember that

battery-operated devices are not routers and therefore do not extend the network

coverage.

5. To account for unexpected interference, do not exceed 75% of the typical indoor

network range between devices or between a device and a gateway.

One gateway is required for each individual network in the installation. The channel of each

network is dictated by the gateway; therefore, all client devices communicate on the same

channel as the gateway.

Keep in mind that some networks have the option of using either 2.4 or 5 GHz bands

(802.11n). Those networks should be treated separately from networks that must use a 2.4

GHz band (802.11b/g).

Once the list of networks is obtained, a site survey can be conducted.

Guidelines for Installations with Wi-Fi and 802.15.4 Networks

When 802.15.4 networks are installed, Wi-Fi will be installed either as part of the same

project or preexist onsite. Proper planning regarding dealing with potential Wi-Fi interference

can make the difference between having a reliable infiNETEX or Zūm

network and one that

regularly fails.

• Use the 5 GHz band (802.11a) for as much Wi-Fi traffic as possible. The best

option for minimizing RF interference is to keep all Wi-Fi traffic on 5 GHz. Since

5 GHz Wi-Fi has less range than 2.4 GHz Wi-Fi, it may require more WAPs for the

same coverage. However, 5 GHz offers higher speeds. If the network is 802.11a

capable and transmitting using 802.11g, move the network to 802.11a to escape

potential interference.

• If 2.4 GHz must be used, select Wi-Fi channels from this group: 1, 6, and 11. This

guarantees there will be four channels (15, 20, 25, and 26) for 802.15.4 networks

that do not overlap with Wi-Fi channels. These four channels are the only channels

that Zūm

Mesh uses, so it is important not to have Wi-Fi overlapping them.

• Using only nonoverlapped channels is not always enough to abate Wi-Fi

interference. Without enough distance between WAPs and 802.15.4 devices,

WAPs can interfere regardless of channel separation. For more information, refer to

the “RF Gateway Installation” section on page 18.

• For instances when Wi-Fi interference cannot be avoided, refer to the

“LNA Bypass” section on page 28 and the “Adding a Wi-Fi Filter” section on

page 28 for more information.

• The channel for Zūm Mesh is automatically selected. If it becomes necessary to

change the channel to avoid interference, the channel can be manually changed

but will require a Zūm

Net-Bridge or Zūm AV-Bridge. For more information, refer to

the “

Changing Zūm Mesh RF Channel” section on page 27.

• Not all Wi-Fi channels are available in all countries. The United States supports

Wi-Fi channels 1–11, while most European nations support the full range of

channels: 1–13.

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