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Appendix a: the rf spectrum, Infinet ex™ gateway crestron cen-rfgw-ex – Crestron electronic infiNET EX CEN-RFGWX-EX User Manual

Page 34

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InfiNET EX™ Gateway

Crestron CEN-RFGW-EX

Appendix A: The RF Spectrum

Crestron’s RF network provides 16 RF channels in the 2.4GHz ISM

*

band, specifically IEEE 802.15.4 channels 11 through 26. The 16
channels define the frequencies at which the RF device will
communicate.
RF devices on different channels will not communicate or interfere with
each other. However, since some of the channels are in the 2.4GHz ISM
band (as shown in the following diagram), interference can occur with
other devices using this band, such as 802.11b/g Wi-Fi devices, Crestron
infiNET™ devices or Zigbee devices, although the differing protocols
will not allow a link to be established or data to be transferred. Wireless
2.4GHz telephones and microwave ovens may also cause interference
with the network.

* Industrial, Scientific and Medical; refers to frequency range used for unlicensed

communications applications, such as Wi-Fi.

IEEE 802.15.4 channel selection (2400 MHz PHY)

Channel 11

(802.11b/g)

Channel 6

(802.11b/g)

Channel 1

(802.11b/g)

Channel

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

22 MHz

2 MHz

2483.5 MHz

2480

2462 MHz

2465

2470

2475

2460

2445

2450

2455

2440

2437 MHz

2435

2430

2425

2420

2415

2410

2405

2412 MHz

2400 MHz

Wi-Fi (802.11b/g)

RF (802.15.4)

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infiNET EX™ Gateway: CEN-RFGW-EX Operations & Installation Guide – DOC. 6706A