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Product Data Sheets (pdf)...V.35 Interface Converters


Product Data Sheets (pdf)...RS-232 to Current Loop DIN Rail Converter with Opto-Isolation


Black Box Explains...UARTs at a glance.

Universal Asynchronous Receiver/Transmitters (UARTs) are integrated circuits that convert bytes from the computer bus into serial bits for transmission. By providing surplus memory in a buffer, UARTs help applications overcome... more/see it nowthe factors that can hinder system performance, providing maximum throughput to high-performance peripherals without slowing down CPUs.

Early UARTs such as 8250 and 16450 did not include buffering (RAM or memory). With the advent of higher-speed devices, the need for UARTs that could handle more data became critical. The first buffered UART was the 16550, which incorporates a 16-byte First In First Out (FIFO) buffer and provides greater throughput than its predecessors.

Manufacturers have been developing enhanced UARTs that continue to increase performance standards. These faster chips provide improvements such as larger buffers and increased speeds. Here are the rates of today’s common UARTs:

UART FIFO Buffer Rate Supported
16550 16-byte 115.2 kbps
16554 16-byte 115.2 kbps
16650 32-byte 460.8 kbps (burst rate)
16654 64-byte 460.8 kbps (burst rate)
16750 64-byte 460.8 kbps (burst rate)
16850 128-byte 460.8 kbps (sustained rate)
16854 128-byte 460.8 kbps (sustained rate) collapse



  • Manual... 
  • Industrial RS-232↔RS-422/RS-485 DIN Rail Converter User Manual
    User Manual for the ICD105A (Version 1)
 

  • Manual... 
  • RS-232 to RS-485/422 Bidirectional Converter Plus Rackmount Card
    Installation and User Guide (Apr-02)
 

Product Data Sheets (pdf)...IEEE 1284 Serial to Parallel Converter

  • Manual... 
  • RS-232 to RS-485/422 Bidirectional Converter Plus Rackmount Card
    Installation and User Guide (Jan-05)
 
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