EKF - Short Profile
EKF - Short Profile

CompactPCI® Serial • Modular Isolated RS-232 & RS-485 Interface



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SU3-ENSEMBLE • Isolated RS-232 & RS-485

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CompactPCI® Serial • Octal UART

Modular Isolated RS-232 & RS-485

The SU3-ENSEMBLE is a peripheral slot card for CompactPCI® Serial systems, based on a PCI Express® octal UART. The board can be individually populated with up to eight isolated transceivers, either RS-485 or RS-232, in any order. The transceiver modules are optionally available with RJ45, Micro-D or D-Sub front panel connectors.

A 4HP front panel is sufficient for up to four transceiver modules with RJ45 and/or Micro-D connectors. For up to eight modules the SU3-ENSEMBLE is available with an 8HP F/P. Transceiver modules with a D-Sub connector may require up to 12HP front panel width, dependent on the total number of ports, and are typically attached via flat cables.


SU3-ENSEMBLE (4HP Front, Quad Port, RJ45 Connector)

Feature Summary

  • 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 connector P6 for even more mechanical ruggedness

  • Pericom® PCI Express® Octal UART PI7C9X7958
  • Eight high performance 950-class UARTs
  • 16C550 software compatible
  • 128-Byte FIFO for each transmitter/receiver
  • Baud rate up to 15Mbps
  • XON/XOFF in-band flow control
  • CTS/RTS or DSR/DTR out-of-band control
  • Driver enable signal for PartyLine operation
  • Data frame 5, 6, 7, 8 and 9 bits
  • Clock prescaling 4 to 46
  • 14.4756MHz UART clock
  • 58.9824MHz clock option for highest RS-485 data rates available (SU5-ENSEMBLE)
  • Windows® WHQL device driver support
  • QNX driver support

RS-485 Transceiver Modules
  • Choice of three front panel connector types
  • SUF-RS485 - Micro-D (20mm width module)
  • SUH-RS485 - RJ45 (20mm width module)
  • SUJ-RS485 - D-Sub 9-pos. (31mm width module)
  • 5kV rms isolation barrier RS-485/RS-422 transceivers (Analog Devices ADM2682)
  • Configurable as half- or full-duplex
  • ±15 kV ESD protection on RS-485 input/output pins
  • Transceiver data rate 16Mbps max.
  • Connect up to 256 nodes on one PartyLine bus (driver enable control via dedicated UART mode select outputs)
  • Open- and short-circuit, fail-safe receiver inputs
  • High common-mode transient immunity >25 kV/µs
  • Thermal shutdown protection
  • Suitable e.g. for industrial fieldbus applications

RS-232 Transceiver Modules
  • Choice of three front panel connector types
  • SUE-RS232 - Micro-D (20mm width module)
  • SUG-RS232 - RJ45 (20mm width module)
  • SUI-RS232 - D-Sub 9-pos. (31mm width module)
  • 2.5kV Isolation barrier RS-232 transceivers (Analog Devices isoPower ADM3252E)
  • Transceivers meet EIA/TIA-232-E specifications
  • High data rate up to 460kbps (each board tested @921.6kbps)
  • ±8kV/±15kV ESD protection on Transceiver input/output pins
  • High common-mode transient immunity >25 kV/µs
  • Suitable for high noise data communications and diagnostic ports

Front Panel I/O
  • Up to 4 transceiver modules RJ45 and/or Micro-D within 4HP front panel width
  • RS-485 front ports isolated against each other and board circuitry
  • Up to 8 transceiver modules RJ45 and/or Micro-D within 8HP front panel width
  • Up to 6 transceiver modules D-Sub within 8HP front panel width (flat cable attachment, front handle replaced by screw lock)
  • Any mix of transceiver modules together with custom specific front panel design, up to 12HP width

Option Rear I/O
  • 4 x Rear I/O UART ports (TTL Level), wired to P4 for optional usage with RIO module
  • Each rear I/O UART port suitable for versatile use with an appropriate transceiver on a RIO module, e.g. RS-232 or RS-232, isolated or non-isolated
  • Standard rear I/O modules available (SUA-RIO for 4 x RS-232 isolated, SUB-RIO for 4 x RS-485 isolated)
  • Option all 8 ports available for rear I/O (SUC-RIO)
  • EKF offers custom specific rear I/O module design

Environment, Regulatory
  • Designed & manufactured in Germany
  • Certified quality management according to ISO 9001
  • Long term availability
  • Rugged solution (coating, sealing, underfilling on request)
  • RoHS compliant
  • Operation temperature -40°C to +85°C (industrial temperature range)
  • Storage temperature -40°C to +85°C, max. gradient 5°C/min
  • Humidity 5% ... 95% RH non condensing
  • Altitude -300m ... +3000m
  • Shock 15g 0.33ms, 6g 6ms
  • Vibration 1g 5-2000Hz
  • MTBF 53.1 years (SU3 board w/o transceiver modules)
  • EC Regulatory EN55035, EN55032, EN62368-1 (CE)

SU3-ENSEMBLE - Simplified Block Diagram

SU3-ENSEMBLE - Simplified Block Diagram

SU3-ENSEMBLE (Six Port D-Sub 8HP Front Panel)

SU3-ENSEMBLE - 8HP Assembly
Ordering Information
Please refer to List 21 for popular SKU