| Image | Model | Description | Features |
|---|---|---|---|
 | Model SIG-0 Communication Bridge | Communication Bridge | Communication bridge between RS-232 and network Able to load, configure, and store information Packages and exports RS-232 data Integrated configuration mode LED network indicator Multiple ways to update firmware |
 | Model SIG-1 Communication Bridge | Communication Bridge | Communication bridge between devices and network Remote access via Telnet Records time-stamped information logs Measures and reports current draw Controls switch power on and off Logs RS-485 or RS-232 commands Configures information into memory |
