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BPS 2322S1P

PCI 2-Port RS-232 Serial Interface Card, 920 kbps Data Rate, 16-Byte FIFO Buffer, with 2 DB-9M Connectors and 1 Parallel Port

Qty   Price (with options selected)
Shipping: 2+ weeks
System BusPCI (32-bit, 5V keyed)
Data Rate per Port, Max.920 kbps
Number of RS-232 Serial Ports2
Number of Parallel Ports1

The BPS 2322S1P is a high-performance RS-232 with 16C550-style UARTs that feature 16-byte transmit and receive buffers to help guard against loss of data in your busy system. All card may be addressed as COM1: to COM4: or any other I/O address you choose from 000 up to 3F8 hex. All ports are capable of operating at speeds up to 920kbaud simultaneously, making this card ideal for high-speed applications such as ISDN modems.

Interrupt Sharing: The Key to Adding Many Serial Ports

The powerful interrupt feature allows multiple ports on a single card to use the same interrupt. With this technology, up to eight ports in one system (when using eight-port cards) can share one interrupt. Any of eleven interrupt choices are available for each port. The interrupt status register may be located at any address, and when used with interrupt sharing, it will supply you with a pointer to indicate which port has an interrupt pending. This feature allows you to find out which of up to eight ports has a pending interrupt with only a single read operation. Our RS-232 and 422 units are jumper-selectable for compatibility with protocols used by Digi®. This functionality provides drop-in replacement capability at reduced cost. Because each port's address may be defined individually, you don't have to worry about address conflicts the way you would with cards that use 32- and 64-byte blocks for addressing. Our serial cards are compatible with all application software that communicates with a standard serial port using an 8250 or 16C450 UART (the UARTs which virtually all PC's use for serial ports). The card supports the standard RS-232 interface and all the above mentioned features; it's DTE/DCE selectable so no special cables are required.

Drivers are automatically and instantly disabled (and receivers enabled) after transmission of the stop bit. Drivers and receivers may also be controlled with data bits 0 and 1 by writing to the base address+7 for the port (MetraByte™ COM-485 protocol compatible). RTS and CTS flow control is supported as well. Convenient on-board jumpers allow for 220-ohm termination as needed for each driver and receiver.

  Detailed Specifications  More Detail
Product Information
System Bus PCI (32-bit, 5V keyed)
Data Rate per Port, Max. 920 kbps
FIFO Buffer Length 16 Bytes
Card Form Factor Short-length standard card (up to 7.5")
I/O Ports
Serial Ports UART/Controller Type 16C954
Number of RS-232 Serial Ports 2
Parallel Ports Number of Parallel Ports 1
Detailed Specifications More Detail
Ordering - Includes Options Indicated Below
BPS 2322S1P
PCI 2-Port RS-232 Serial Interface Card, 920 kbps Data Rate, 16-Byte FIFO Buffer, with 2 DB-9M Connectors and 1 Parallel Port
Catalog # Shipping Price (with options) Qty  
BPS 2322S1P 2+ weeks
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