ICP DAS USA SST-2450 user manual Introduction

Page 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.

SST-2450 Wireless Modem User’s Manual Ver1.5, Feb /2003, OMH-030-10,---3

Image 3
Contents SST-2450 Wireless Modem User’s Manual Table of Contents Introduction PN code rate SpecificationsProduct Description SST-2450Block diagram Peer to Peer ApplicationsPC to PC connections --Using Mode Using Mode Both SST-2450 modules are setting as follows Both SST-2450 modules settings are as followsHalf-Duplex Connecting a PC to a PLC Using ModeUsing the 7188 as a Bridge -- Using Mode Application Network communicationApplication Quick Start instructions for the SST-2450 Installing the softwarePage SST-2450 Settings Page Testing the SST-2450 Troubleshooting Setting errorTesting error Dimensions Din-rail Mounting External Antenna ANT-8Omni directional ANT-12PDirectional Appendix