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PCIe cards support backward compatibility

Posted: 22 Jul 2010     Print Version  Bookmark and Share

Keywords:PCIe  serial  communication card 

Access I/O Products, Inc. debuts its PCIe-COM line of RS-232/422/485 serial communication cards that support DB9M and RJ45 connectivity and are designed to support applications such as POS systems and kiosks.

The product line offers a selection of two, four, or eight ports of software-selectable RS-232, RS-422, and RS-485 serial protocols. The cards feature a x1 lane PCI Express connector that can be used in any available x1, x2, x4, x8, x12, or x16 PCI Express expansion slot.

Each RS-232 port is capable of supporting data communication rates up to 921.6kbit/s and implement full modem control signals to ensure compatibility with a broad variety of serial devices. RS-422 and RS-485 modes support data communication speeds up to 3Mbit/s. Existing serial peripherals can connect directly to industry standard DB9M or RJ45 connectors which are provided on-board each card or via a breakout cable.

The PCIe-COM family was designed using type 16C950 UARTS and use 128B transmit/receive FIFO buffers to decrease CPU loading and protect against lost data in multi-tasking systems. New systems can continue to use legacy serial peripherals, yet benefit from the use of the high performance PCI Express bus. The cards are fully software compatible with current PCI 16550 type UART applications and allow for users to maintain backward compatibility.

9-bit data mode and RS-485 full-duplex (4-wire) are fully supported. RS-232 only versions and extended temperature (-40°C to +85°C) are available. Available accessories include a broad range of cables, screw terminal boards and breakout connection boxes for a variety of quick and easy connectivity options.

A complete driver support package is provided including an easy-to-use Windows terminal program for testing your COM ports. This simplifies the verification of proper COM port operation. The cards install as standard COM ports in all operating systems including DOS, Linux (including Mac OS X) and Windows 2000/XP/2003/Vista/7.

Prices range from Rs.8,358.97 ($179) to Rs.25,637.30 ($549), depending on model.

- Toni McConnel
EE Times

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