ICP DAS New Product: VXC-114iAU
Universal PCI, 4-Port RS-232 Communication Board
 
 
Introduction:
The VXC-114iAU communication card provides 4 RS-232 serial ports and supports 3.3 V/5 V PCI bus. Each port is equipped with a 128-byte hardware FIFO, and offers speed up to 115200 bps. The RS-232 serial ports of VXC-114iAU tolerate isolation voltage up to 2.5 kV.

Users can select a specified COM port number manually by setting DIP switch, or let the driver choose an available number automatically. The driver provides a maximum of 128 KB software FIFO for each COM port under Windows. It's practical for large file transmission.

In harsh industrial environments, the on board ESD protection component diverts the potentially damaging charge away from sensitive circuit and protects the computer and equipment from damage caused by high potential voltage.

VXC-114iAU offers photo isolation to protect your computer and equipment against damages in harsh environment. It can help cutting down on-ground loops, common-mode voltages and blocking voltage spikes, provide electrical isolation, and offer significant protection from serious over-voltage conditions in one circuit affecting the other.

The serial communication card is designed for use with intelligent devices like bar code reader, serial printers, intelligent sensors, instrumentation equipment, computers and almost any device with an RS-232 port.
 
ESD Protection
The VXC cards offer TVS diode ESD protection technology, protecting your system from being damaged by the high potential voltages.
 
How does TVS diode work?
Under normal operating conditions, the TVS diode presents high impedance (appears as an open circuit) to the protected component. When the voltage is beyond the limits, the TVS diode avalanches to provide a low impedance path for the transient current. As a result, the transient current is diverted away from the protected components and shunted through the TVS diode. The device returns to a high impedance state after the transient threat passed.
 
Hardware FIFO up to 128 bytes
FIFO stands for "First In, First Out", an abstraction in ways of organizing and manipulating data relative to time and prioritization. FIFO is used for buffering and flow control while data come from hardware to software. When using hardware FIFO (buffer), a little delay on software or operating system will not lost data at all.
VXC Cards are equipped with 16- or 128-byte hardware FIFO for each port. Large hardware FIFO is useful to prevent data lost when your system works on heavy loading, and even helpful while you are running on a multi-task operating system, such as Windows, Linux¡K etc.
 
Isolation
Photo coupler is a device that uses a short optical transmission path to transfer a signal between elements of a circuit, typically a transmitter and a receiver. This keeping them electrically isolated ¡X since the signal goes from an electrical signal to an optical signal, the electrical contact along the path is broken.

It can help cutting down on-ground loops, common-mode voltages and blocking voltage spikes, provide electrical isolation, and offer significant protection from serious over-voltage conditions in one circuit affecting the other.
 
Feature:
  • Built-in COM-Selector
  • Short Card Design
  • Supports 3.3 V/5 V PCI bus, Plug and Play
 
     
     
  • Up to 128 KB Software FIFO (max.) for each COM Port under Windows
  • 128-byte hardware FIFO for each port
 
     
  • +/-4 kV ESD Protection
  • 2500 VDC Isolation
 
     
For more information, please visit the following web site:
 
The VXC Family -- Mulit-port Serial Cards:
 
Model Description
VXC-112AU Universal PCI Bus, serial communication board with 2 RS-232 ports
VXC-112iAU Universal PCI Bus, serial communication board with 2 RS-422/485 ports
VXC-142U Universal PCI Bus, serial communication board with 2 RS-422/485 ports
VXC-142iU Universal PCI Bus, serial communication board with 2 Isolated RS-422/485 ports
VXC-182iU Universal PCI Bus, serial communication board with 1 Isolated RS-422/485 port and 1 RS-232 port
VXC-114U Universal PCI, 4-port RS-232 Communication Board (RoHS)
VXC-114iAU Universal PCI Bus, serial communication board with 4 Isolated RS-232 ports
VXC-144U Universal PCI, 4-port RS-422/485 Communication Board (RoHS)
VXC-144iU Universal PCI, 4-port Isolated RS-422/485 Communication Board (RoHS)
 
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