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SST-2450 Wireless Modem User’s Manual Ver1.5, Feb /2003, OMH-030-10, ---3
1. Introduction
SST-2450EXT is a spread spectrum radio modem with controlling an
RS-232/RS-485 interface port. It is designed for data acquisition and control
applications between a host and remote sensors. It is also useful for those
applications where the installation of cable wire is inconvenient. The
SST-2450 can be used not only in peer-to-peer mode (refer to page 8), but
also in a multi-point structure (refer to page 13).
The SST-2450 is based on a direct sequence spread spectrum and RF
technology, operating In the ISM bands with a Frequency Range of
2410.496MHz~2471.936MHz. The Channel Spacing is 4.096MHz.
The SST-2450 is similar to the SST-2400, with the major difference being
the setting control method. The SST-2400 is set using jumpers, whereas the
SST-2450 is set using a software utility. The older SST-2400 can work in
conjunction with the new SST-2450 by changing its internal 8051 chip. The
new chip includes updated firmware, so please contact us and we will send a
new chip. Refer to page 26 for detail.