COM-2PD(PCI)H Serial Communication PCI Card RS-422A/485 2ch / Isolation and Surge Protection

• Overview / Features
• Specifications
• Ordering Information
• Support / Downloads

Overview / Features

This product is a PCI bus-supported board designed for extending RS422A/485 compatible serial communication functionality on your PC. The product has two RS-422A/485 communication ports. Higher noise-resistant models with isolation between a PC and bus line as well as a surge protection circuit for communication ports. With a 128byte built-in FIFO buffer for transmission and reception of each channel, the product supports a baud rate of up to 921,600bps. Windows / Linux compatible driver software is available that can be used just like a COM port on a PC. This product supports CONTEC-defined driver library “API-PAC(W32)” that provide local routines.
The COM-2PD (PCI)H boards are backward compatible with the CONTEC COM-2PD (PCI) boards. The COM-2PD(PCI)H can therefore replace the COM-2PD(PCI) in an existing system.

• Max. 921,600bps RS-422A/485 Serial Communication.

  • The product has two RS-422A/485-standard serial ports. Baud rates from 2 to 921,600bps can be set. When using the supported “Standard COM Driver Software” and “Driver library APIPAC(W32)”, baud rates from 15 to 921,600bps can be set.
• Isolation between channels and between PCs, surge protection for all signal lines.

  • The channels are electrically isolated from each other and from the PC. As isolation is provided between channels as well as isolation of the bus, this prevents electrical noise between channels as well as between the PC and external circuits. As surge protection is provided on all signal lines, you can safely use the boards in environments where you are concerned about surges causing incorrect operation or damage to the PC.
• Max. 16 boards can be installed as configured in the range COM1 - COM256.

  • Up to 16 boards can be mounted on a single PC. COM1 - COM256 can be set using the device manager.
• Each channel is equipped with separate 128-byte FIFO buffers for transmit and receive.

  • Employed a buffer memory 128-byte dedicated to transmission and 128-byte for each channel. These are FIFO format, useful for high speed communications and to reduce the load to the CPU when transmitting/receiving. As the device manager can be used to enable/disable the use of FIFO and set the FIFO trigger size, you can build an optimum system according to your use.