Issue
After replacing the Niagara R2 Enterprise Server hardware, alarms no longer print because the dot-matrix printer was connected via a USB adapter instead of the original parallel port.
Product Line
TAC IA SeriesEnvironment
- Niagara R2 Enterprise Server
- Dot-matrix printer used for alarm printing
Cause
Niagara R2 does not support USB-connected printers. The original hardware provided a parallel or RS-232 port, which is required for printer communication.
Resolution
Use a printer connection via:
- RS-232 serial port, or
- Standard 25-pin parallel port
USB printer connections are not supported by Niagara R2.
