CompactPCI® Serial  8-Port RS-232 & RS-485 Interface

The SU4-SOPRANO is a peripheral slot card for CompactPCI® Serial systems, equipped with a PCI Express® eight channel UART (Universal Asynchronous Receiver Transmitter). All ports are available through Micro-D front panel connectors, and can be user configured individually for either RS-232 or RS-485 by means of DIP-switches. The on-board transceivers allow for maximum bit rates up to 15Mbps when operated in RS-485 mode and up to 1Mbps in RS-232 mode. Full- and half-duplex is supported for RS-485, with up to 256 nodes on a bus. The line termination can be switched on/off individually.
As an alternate, any particular port (TTL level) can be redirected to the optional backplane connectors P3 and P4, for rear I/O usage together with a suitable rear I/O module.

The SU4-SOPRANO fits into any CompactPCI® Serial peripheral slot that is PCIe enabled.

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Application Notes

General Information


  • PICMG® CompactPCI® Serial standard (CPCI-S.0)
  • Single size Eurocard 3U 4HP 100x160mm2
  • Suitable for CompactPCI® Serial peripheral slot (PCI Express® enabled)
  • CompactPCI® Serial backplane connector P1 for PCI Express®, single lane link
  • Option CompactPCI® Serial backplane connectors P3, P4 for rear I/O

Simplified Block Diagram

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