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The 3420 ISA serial interface card provides eight RS-232 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 3420 ISA serial interface is available with the Oxford 16C950 UART, part number 3420-SN.
| Host Interface | ISA |
|---|---|
| # of Ports | 8 |
| Electrical Interface | RS-232 |
| UART | 550 UART |
| Serial Connector(s) | DB25M |
| Communications Chip | 16550 |
| Max Data Rate | 460.8K bps |
| Max Data Distance | 50 feet |
| Power Requirement | +12V @ 30mA -12V @ 50mA |
| Current Specifications | +5V @ 240mA |
| Operating Temperature | 0 - +70C |
| Storage Temperature | -50 - +105C |
| Humidity Range | 10 - 90% Relative Humidity, Non-Condensing |
• The ISA 8 Port RS-232 Interface occupies 64 consecutive I/O locations user selectable as: consecutive with DIP-switch or customizable with PAL option
• Shareable IRQ level (2-5, 7, 10-12 and 15)
• Supports standard PC data rates up to 460.8K bps
• Shareable IRQ level (2-5, 7, 10-12 and 15)
• Supports standard PC data rates up to 460.8K bps
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