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SERIAL INTERFACE
24
NETWORKING
PAN ID - PAN ID (EEPROM address 0x79) is a 16-bit field and is similar to a password or network number and helps
differentiate collocated networks. A transceiver will not be associated with a network unless its PAN ID and Channel
Number match that of the Coordinator. Range is 0x0000 to 0x3FFF.
RF Channel Number - (EEPROM Address 0x40) Channels 0x0B - 0x1A; 5 MHz spacing. The transceiver will operate
only on the RF Channel Number specified in the EEPROM.
Note: The ZB2430-Q is not approved for use on channel 0x1A and the channel number should therefore be selected
accordingly.
Figure 7: IEEE 802.15.4 RF Channels
Channel Select - When enabled in EEPROM (EEPROM address 0x56, bit-3) the Coordinator will select a channel
permitted by the Channel Mask with the least amount of energy present. The Coordinator will start on the first channel
and if RF energy is detected or another network is detected, it will change to the next channel. This continues for all
the channels and then the clearest channel is selected.
When a Router is powered on, it will scan each channel; periodically sending beacons and searching for a parent.
When the parent receives a beacon from the Router, it sends an acknowledgement to the Router, and the Router is
associated with that parent.
When disabled in EEPROM, the Coordinator will use the RF Channel programmed at EEPROM address 0x40 to
establish it’s network.
Channel Mask - The Channel Mask (EEPROM Address 0x30) is a 32-bit field which specifies the range of allowable
channels that the radio can select from when choosing an RF channel. In order for two devices to communicate, a
common channel must be selected. At least one channel must be selected (set to 1).
To use the Channel Mask, enable Channel Select (EEPROM Address 0x56, bit 3). When Channel Select is enabled,
the radio disregards the Channel specified at EEPROM address 0x40. When Channel Select is disabled, only the
Channel specified at EEPROM Address 0x40 will be used.
Examples:
Table 6: RF Channel Number Settings
Radio Model
RF Channel Number
Range (0x40)
Frequency Details &
Regulatory requirements
Countries
ZB2430-D 0x0B - 0x1A 2400 - 2475 MHz Pending Approval
ZB2430-Q 0x0B - 0x19 2400 - 2465 MHz Global