Serial Communication Board with 8 RS-232/422/485 Ports
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Self-Tuner
The VXC-148U/PCIe-S148 card is equipped with an internal “Self-Tuner” chip that is used to
automatically control the direction of the transmission and receiving of signals on the RS-485 ports.
Without the help inclusion of the Self-Tuner, the RS-485 transmitter would need to be manually
enabled before transmitting, and then disabled once the transmission is complete. The timing
method that is used to enable and disable the transmitter (direction control) is major source of
many communication problems, and is very difficult to rectify.
The built-in Self-Tuner embedded on the VXC-148U/PCIe-S148 card can help effectively any issues
related to direction control and also simplifies the software programming required for
communication applications.
Automatically Select COM Port Numbers
The VXC-1x8U/PCIe-S1x8 series card support drivers choose an available COM port number
automatically. Users can specify the COM port number of the VXC-1x8U/PCIe-S1x8 card under
software control.
Various Accessories
There are a lot of optional accessories for the VXC-1x8U and PCIe-S1x8 multiport series cards, such
as RS-232 cables and daughter boards. These tools make wiring much easily than ever.
