PMC Serial I/O

This product reached the end of its lifecycle (end-of-life) on December 31, 2010

Please refer to downloads section below if you require documentation or software. If you have any questions or require product support, including help migrating to our latest products, please contact us.


The PMC421 provides a uniquely effective solution for integrating serial I/O requirements into a VMEbus or CompactPCI system. Implemented on a single PMC card, the PMC421 is fully compatible with current generation VMEbus and CPCI Single Board Computers, as well as any special purpose processor that includes a PMC connector. In addition, card edge PCI systems can be accommodated using our PMC239 adapter for rapid prototype and development. Intelligent Serial, 8 Ports, Front or Rear I/O, Onboard CPU to off-load host, Character blocking & DMA for efficient PCI utilization, Baud rate from 150 bps - 1.5 bps, Software selectable, RS232, RS422 & RS485 (full and half duplex), All ports fully independent, Custom firmware options for special purpose applications.

  • Custom Firmware Options for Special Purpose Applications
  • All Ports Fully Independent
  • Software Selectable RS232, RS422 & RS485 (Full Duplex & Half Duplex)
  • Baud Rate from 150bps - 1.5Mbps
  • Character Blocking & DMA for Efficient PCI Utilization
  • On-Board CPU to Off-Load Host
  • PMC/PCI Form Factor


Form Factor
# ARINC Channels
Front I/O
Rear I/O


VxWorks, Solaris, NT, Linux, LynxOS Software Drivers.

06-2600000 - 68-pin SCSI to DB9 x 8 cable


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