Tempest 900 - Network Number and Lockout Key

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Tempest900 2-Channel Operating Manual
Network Number and Lockout Key
The Network Number determines the RF frequency hopping pattern for the BaseStation and its corresponding BeltStations. This is a key
operational parameter and is represented by a number between 0 and 36.
When using multiple collocated Tempest BaseStations, it is imperative that Network Numbers are properly coordinated. Synchronized
BaseStations must utilize the same Network Number Group for optimal performance to be achieved. Under ideal conditions, three to ve
Tempest 900 BaseStations can be utilized in one Network Number Group. For example, a conguration using three Tempest 900 BaseStations
would assign each BaseStation a Network Number (0,1,2) from Group One. The chart below outlines each Network Number Group and its
capacity. However, when collocating more than three BaseStations, it is highly recommended to contact your Tempest Applications Engineer for
assistance with system implementation.
The Lockout Key prevents systems with the same Network Number from trying to communicate with each other and is represented by a number
between 0 and 255. BaseStations that are collocated within the same installation may have the same Lockout Key as long as the Network
Numbers are different. Lockout keys serve as differentiators for systems using the same Network Number. Together, the Network Number and
Lockout Key represent more than 11,000 possible combinations to minimize the possibility of inter-system interference.
The Network Numbers and Lockout Keys for Tempest Wireless BaseStations are set to a factory default before leaving the factory. It is always
recommended to adjust the Network Number and Lockout Key upon initial set up out of the box. Failure to set a unique Network Number and
Lockout Key may result in poor system performance caused by interference from another Tempest Wireless system using the same Network
Number and Lockout Key. Because of the requirement to pair every BeltStation to each BaseStation that it will communicate with, it is not
possible to manipulate Network Numbers and Lockout Keys at a BeltStation to gain unauthorized access to a communication channel.
*When collocating more than three BaseStations, it is highly recommended to
contact your Tempest Applications Engineer for assistance.
Collocated BaseStations must use Network Numbers from the same Network Number Group; failure to
do so can lead to poor performance.