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The 3440 ISA serial interface card provides four RS-422 or RS-485 ports. This product features extended interrupt support, individually selectable or sharable interrupts and an onboard interrupt status port for maximum Windows flexibility.
For user's that require custom baud rates, isochronous communications, or 9-bit protocol, the 3440 ISA serial interface is available with the Oxford 16C950 UART, part number 3440-SN.
For user's that require custom baud rates, isochronous communications, or 9-bit protocol, the 3440 ISA serial interface is available with the Oxford 16C950 UART, part number 3440-SN.
| Host Interface | ISA |
|---|---|
| # of Ports | 4 |
| Electrical Interface | RS-422, RS-485 |
| UART | 550 UART |
| Serial Connector(s) | DB9M |
| Communications Chip | 16550 |
| Max Data Rate | 460.8K bps |
| Max Data Distance | 4000 feet |
| RS-485 Operation | Full Duplex (4 wire), Half Duplex (2 wire) |
| Operating Temperature | 0 - +70C |
| Storage Temperature | -50 - +105C |
| Humidity Range | 10 - 90% Relative Humidity, Non-Condensing |
- • 16-bit addressing eliminates I/O conflicts
- • Selectable termination, echo mode and two or four wire operation
- • Selectable and shareable IRQ level (2-5, 7, 10-12 and 15)
- • Onboard interrupt status port for Windows flexibility
- • DB-9P connectors providing TD, RD, RTS and CTS
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