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ISA Serial Interface Card with 1 RS-232 Port
ISA Serial Interface Card with 1 RS-232 Port
BLS 2321S

ISA 1-Port RS-232 Serial Interface Card, 460.8 kbps Data Rate, 16-Byte FIFO Buffer, with DB-9M Connector

Qty   Price (with options selected)
Shipping: Low Stock
 Features
System BusISA (16-bit, AT)
Data Rate per Port, Max.460.8 kbps
Number of RS-232 Serial Ports1
ISA Serial Interface Card with 1 RS-232 Port ISA RS-232 Serial Interface Card, Backplate View
 
Introduction

The BLS 2321 is a high-performance RS-232 card with a 16C550-style UART that features 16-byte transmit and receive buffers to help guard against loss of data in your busy system. The card may be addressed as COM1: to COM4: or any other I/O address you choose from 000 up to 3F8 hex. The DB-9M port is capable of operating at speeds up to 460kbaud.

The serial card is 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).

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 ISA (16-bit, AT)
Data Rate per Port, Max. 460.8 kbps
FIFO Buffer Length 16 Bytes
I/O Ports
Serial Ports UART/Controller Type 16C550-compatible
Number of RS-232 Serial Ports 1
Detailed Specifications More Detail
 
Ordering - Includes Options Indicated Below
BLS 2321S
ISA 1-Port RS-232 Serial Interface Card, 460.8 kbps Data Rate, 16-Byte FIFO Buffer, with DB-9M Connector
$89.00
Catalog # Shipping Price (with options) Qty  
BLS 2321S Low Stock
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