Sealevel’s New Dual-Port Multi-Interface PCI Express Serial Adapter Offers Highest Data Rates

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Product Features

  • Two serial ports configurable for RS-232, RS-422 or RS-485 interface
  • Electrical interface selection via on-board DIP switch with Windows device driver override
  • Software selectable 250K Slew Rate Limiting to minimize electromagnetic interference
  • Ultra high-speed UART with 256-byte Tx and Rx FIFOs
  • Supports asynchronous data rates exceeding 1 Mbps
  • Bus-derived 125 MHz BRG and clock prescalar support wide range of baud rates
  • Automatic RS-485 enable/disable for Windows applications
  • PCI Express X1 compliant
  • Compatible with low profile PCI Express slots (standard profile slots with optional bracket)
  • All modem control signals implemented in RS-232 mode
  • Includes 36” cable that terminates to two DB9M connectors

Sealevel’s best-selling dual-port multi-interface PCI Express serial adapter has been enhanced with the release of the 7205ec. This new board features an ultra high-speed UART, flexible clock prescalar, and larger 256-byte Tx/Rx FIFOs that allow the adapter to support the widest range of standard and non-standard baud rates exceeding 1 Mbps. These improvements make the 7205ec ideal for data intensive applications that require reliable, ultra-fast throughput rates.

The electrical interface, echo suppression and line termination continue to be set via convenient on-board DIP switches. Optionally, these settings can now be overridden by the Windows device driver. Another addition to the Windows driver is the software-selectable Slew Rate Limiting feature that minimizes electromagnetic interference when the serial ports operate at baud rates below 250K bps. For rapid troubleshooting, on-board LEDs have been added to display the board heartbeat, confirm electrical interface selection and line termination state.

The 7205ec is a “form, fit and function replacement” for the 7205e; existing customers of the 7205e simply need to update to the latest 7205ec software driver to ensure their application will continue to operate as expected. The 7205ec is a PCI Express X1 board compatible with any low profile PCI Express slot. Low volume price is $259 and the board is available from stock.