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Ordering Information
| Model | Part Number to Order | Description |
| ULI-223D | BB-422PP9R | RS-422 Converter - RS-232 DB9F to RS-422 DB9F, Port-powered. |
| ULI-223T | BB-485PP9TB | RS-422 Converter - RS-232 DB9F to RS-422 TB, Port-powered. (Optional external PSD, sold separately.) |