A ZigBee based network has 16 channels available for use. The TEC Series Wireless Thermostat Controller system and the ZFR183x Series Wireless Field Bus system use only channels 15, 20, and 25. These channels were selected because they do not overlap with channels used on a Wi-Fi network. Figure 1 is a diagram illustrating that the ZigBee channels do not interfere with the Wi-Fi network.
Figure 1. Comparing Channel Spacing of the Systems Using ZigBee Technology Versus Wi-Fi Networks