l
Endpoint/Repeater: This operation mode designates the radio as an endpoint/repeater.
This mode allows the endpoint/repeater to operate as both an endpoint and a repeater.
The endpoint/repeater will repeat packets sent across the radio network to the gateway,
endpoints, repeaters, and other endpoint/repeaters. In addition, the endpoint/repeater will
send packets received from the gateway to the device attached to the active interface
(CS I/O or RS-232) and send data received from the device attached to the active interface
to the gateway. Endpoint/repeaters may communicate with the gateway through one or
more repeaters and/or other endpoint/repeaters.
7.1.5 Network ID
All radios in a network need to have the same Network ID. The value must be between 0 and
4095 (excluding 255). The ID of 255 is reserved.
An endpoint will link with the first gateway or repeater it hears with a matching Network ID.
Assigning a unique Network ID will reduce the chance a radio in your network links with another,
unrelated network in the same RF area.
If necessary, the Network ID function can be used in conjunction with the SubNet ID feature. See
(p. 15) for more information.
7.1.6 Frequency Key
The Frequency Key determines the frequency hopping sequence of the transceiver. There are 15
choices available (0–14) which represent 15 unique pseudo-random hop patterns. This setting
allows you to minimize RF interference with other FreeWave transceivers operating in the same
RF area.
NOTE:
The Frequency Key setting should be the same for all radios in the entire network. The
exception to this is if the Repeater Frequency Key setting is used. If this is used, the repeater's
Frequency Key would be different from the gateway radio, and downstream radios intended
to connect to the repeater would have the same Frequency Key setting as the repeater.
7.1.7 Repeater Frequency Key
This is a setting that is only used by repeaters. The Use Repeater Frequency Key checkbox must
be selected when you want a repeater to use a Frequency Key other than that of the gateway.
This is useful when there are parallel repeaters in a network, and you want to force
communications through a particular repeater. When this setting is used, the repeater will receive
on the Frequency Key of the upstream gateway (or repeater), and transmit on its Frequency Key
setting (which typically is set to a different value than the gateway).
RF451/RF452 Spread Spectrum Radio
12