OleumTech WT H2S Series, Руководство пользователя

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WIRELESS H2S TRANSMITTER (WT SERIES) - USER GUIDE
7. RF Enhancements
To ensure data reliability and delivery over RF, OleumTech Wireless Sensor
and I/O Network provides RF collision detection for the 900 MHz and 915
MHz and RF collision avoidance with 868 MHz and 2.4 GHz radio versions.
8. RF Security
AES Encryption
OTC Wireless Sensor and I/O Network provides the ability to enable over-
the-air encryption using AES. The 900 MHz radio version supports 256-bit
AES encryption, whereas the 868 MHz, 915 MHz, and 2.4 GHz versions
support 128-bit AES encryption.
Minimum software/firmware revision levels for AES Encryption feature:
BreeZ Software v5.1 or later
DH3 v1.0 or later
DH1 (Base Unit) / DH2 / DH2-W v2.0 (RF2) or later
WT Series Transmitters v2.0 (RF2) or later
Site Authentication
OleumTech Wireless Sensor and I/O Network also provides users the
ability to enable Site Authentication. This method further extends security
measures and eliminates or minimizes crosstalk with neighboring
networks.
How to enable RF security in BreeZ v5.1 or later.
a. Open or create a BreeZ project file (v5.1 or later).
b. Right-click on “site” in the project tree and select “edit.”
c. Check Enhanced Site Security to enable Site Authentication.
d. Check Enable AES Encryption to enable AES encryption.
e.
Save project file.
f. Upgrade all wireless device firmware to version that supports AES.
g. Update all wireless devices in the project file.
9. 900/915 MHz Bit Rate
The Edit Site dialog contains two bit rate options for a 900 MHz network
configuration, 9600 and 115,200 bps.
If a network contains heavy RF traffic
and/or fast Tx interval, using the higher 115,200-bit rate will a solve
majority of RF issues. When using the higher bit rate, be sure to check RSSI
to ensure RF signal integrity due to shortened RF range.