User's Manual

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In situations where wired connection is impractical between a
host computer and a network of SaviReaders (or between two
sub-networks of SaviReaders), two Savi RF Relays can create a
wireless connection. This connection allows one host computer
to control readers that monitor a much larger physical area than
is possible using only wired connections.
The Savi RF Relay is available in two models, both of which are
described in this manual:
• The RFR-100 model provides a long-distance wireless link
in an RS-485 network, using an RF modem.
• The RFR-200 model provides a long-distance wireless link
in a LonWorks network, using an RF modem.
Both models of the Savi RF Relay have four basic components:
• The RF Relay itself, which includes a wireless transceiver
and network interface in a weatherproof NEMA enclosure
• An up/down converter (two models), which provides
necessary frequency conversion between the RF Relay and
the antenna
• A bandpass filter that attaches to the end of the antenna
(up/down converter model UDC2.4B-0C only)
• An omnidirectional 2.4 GHz antenna
Figure 1-1 shows a Savi RF Relay with its antenna and up/down
converter mounted on the same mast.