ZAURA Datasheet, PDF (16/99 Pages) –

ZAURA RF Wireless Library
Programmer’s Reference Manual
4
Table 2. Center Frequencies in the 902–928 MHz Band (Continued)
Channel
5
6
7
8
9
10
11
12
Center Frequency (MHz)
908
909
910
911
912
913
914
915
Channel
18
19
20
21
22
23
24
Center Frequency (MHz)
921
922
923
924
925
926
927
All data communication occurs at 50 kbps with a Frequency Deviation
(FDEV) of 100 kHz and a Modulation Index (MI) of 4, regardless of the
frequency band used.
The ZAURA RF Wireless Network does not implement frequency hop-
ping. After a node has been configured to operate on a particular channel,
it will continue to use that channel until the node is configured to use a
different channel.
ZAURA RF Wireless Cell Network Identifiers
A ZAURA RF Wireless cell is composed of up to 254 peer nodes. Each
ZAURA RF Wireless cell operates independently of all other cells; each
cell uses a unique Network Identifier (NID). The size of the NID is a user-
configurable parameter that must be between 1 and 4 bytes in length.
Because it may at times be difficult for the radio hardware to distinguish
between a valid Network ID and noise (or the absence of any FSK signal),
network identifiers should not contain long sequences of repeated binary
digits. For example, the 16-bit Network ID 0x0001 is a poor choice;
whereas 0xA5B9 provides much better immunity to noise.
The ZAURA RF Wireless Library
RM006003-1011