Sealevel 7105-DB9 Single port RS-422 RS-485 serial interface. The 7105-DB9 PCI serial interface is designed with a DB-9 connector pinned out compatible with AC24AT and AC422AT Opto-22 ISA bus cards. This allows Optomux devices to be controlled from PCs that do not have an ISA bus expansion slot available. The 7105-DB9 is compatible with standard 5V PCI slots. The 7105-DB9 PCI serial interface provides a single field selectable port configurable as RS-422 or RS-485 supporting asynchronous data rates up to 460.8K bps. Host Interface PCI # of Ports 1 Electrical Interface RS-422, RS-485, RS-530 RoHS Yes UART Series 850 UART Serial Connector(s) DB9M PC Bracket Standard Height Communications Chip 16C850 Max Data Rate 460.8K bps Max Data Distance 4000 feet Operating Temperature 0 - +70C Storage Temperature -50 - +105C Humidity Range 10 - 90% Relative Humidity, Non-Condensing