Data Rate 1X or 4X Clock Speed | B&B Electronics RS-422 specs

B&B Electronics RS-422 Data Rate 1X or 4X Clock Speed, Example Data Rate, Clock Speed, 4x Windows

Data Rate - 1X or 4X Clock Speed

The 3PCIO1 port in the Device Manager has Data Rate, Clock Speed settings for 1X or 4X.

The 4X position provides a compatibility mode for software which requires it. In the 4X position, all standard baud rate settings are multiplied 4 times. For example, if the software sets 57.6K baud, the actual baud rate will be 230.4K baud, 115.2K becomes 460.8K.

Example – Data Rate, Clock Speed, 4x (Windows 98)

Refer to Specifications in Chapter 1 for baud rates available.

In many systems, faster baud rates can improve throughput significantly. Actual throughput and faster baud rates are only proportional if the system can keep up with the communications, otherwise increasing the baud rate effectively only increases the idle time between characters.

Continued next page

Chapter 4

Documentation Number 3PCIO1-0903 Manual

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RS-422 specifications

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