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8-Channel and 4-Channel High-Speed Serial I/O XMC Adapter

PDF print version of this specification

The 8-Channel High-Speed Serial I/O XMC Adapter provides eight channels of simultaneous, high-speed (>16 Mbit/s), bi-directional serial communications. All channels are jumper configurable as RS232/422/485. This adapter also supports a number of UART (Universal Asynchronous Receiver/Transmitter) (<1 Mbit/s) channels.

The 4-Channel High-Speed Serial I/O XMC Adapter is a reduced cost version of the 8-Channel adapter with only half the line drivers fitted.

The adapter design complies with the XMC specification (ANSI/VITA 42.3-2006) and the Conduction-Cooled PMC (CCPMC) specification (ANSI/VITA 20-2001) and is available in ruggedised, industrial and commercial versions. A version with front panel I/O is available as an option.

Block Diagram
8-Channel HSS XMC Adapter Block Diagram


The 8-Channel High-Speed Serial I/O XMC Adapter are intelligent adapters designed with Xilinx Artix-7 Field-Programmable Gate Array (FPGA). The Xilinx Artix-7 FPGA can easily be configured to implement different serial protocols, thus allowing the adapters to keep up with technological advances. All ultra high-speed serial I/O channels are implemented using the Artix-7 FPGA.


  • Cost-effective and flexible option for systems that require both high-speed, real-time communication links as well as some low-speed serial links
  • Offers independent I/O processing offboard the host


The conduction-cooled 8-Channel and 4-Channel High-Speed Serial I/O XMC Adapter conforms to the CCPMC (Conduction-Cooled PCI Mezzanine Card) Standard, namely ANSI/VITA 20-2001.


  • Distributed real-time applications in harsh environments
  • Mission-critical applications
  • Avionics
  • Vetronics
  • High-speed sensor integration

Host Interface4-Lane; 2,5 GHz PCIe
Electrically : PCI Express Rev. 2.0
High-Speed Channels8 or 4
High-Speed Channel ProtocolsSDLC, HDLC, BiSync, Asynchronous UART, custom
High-Speed Channel Data RateRS422/485 : 16 Mbit/s per channel maximum
RS-232 : 1 Mbit/s per channel maximum
High-Speed Channel Serial I/O InterfaceRS-422/385 : TxD, RxD, CLK_IN, CLK_OUT
High-Speed Channel Termination100 ohm, individually selectable for each RS422/485 channel
High-Speed Channel External Clock8 MHz maximum
Asynchronous UART-only Channels4 or 2, 1 Mbit/s per channel maximum, RS-232 only, TxD, RxD, RTS, CTS
FPGAXilinx Artix-7 100T
Power10 W maximum, 3,3 V
ReliabilityFigures according to MIL-HDBK-217F, Parts Stress Method
Commercial and Industrial Grade, 4-ChannelGround Benign, Controlled, 25 C790 000 hours
Commercial and Industrial Grade, 8-ChannelGround Benign, Controlled, 25 C570 000 hours
Ruggedised Grade, 4-ChannelGround Mobile, 45 C
Naval, Sheltered, 40 C
Airborne, Inhabited Cargo, 55C
80 000 hours
190 000 hours
860 000 hours
Ruggedised Grade, 8-ChannelGround Mobile, 45 C
Naval, Sheltered, 40 C
Airborne, Inhabited Cargo, 55C
52 000 hours
126 000 hours
56 000 hours
Software DriversSoftware driver support for Linux. VxWorks is a costed option

Physical Characteristics
XMC143,75 mm x 74,00 mm (+0,0 / -0,5 mm) conforming to VITA 20 height envelope80 g +/- 10 g
CCXMC143,75 mm x 74,00 mm (+0,0 / -0,5 mm) conforming to VITA 20 height envelope80 g +/- 10 g

Environmental Specifications
 Commercial GradeIndustrial GradeRuggedised
- Operating
- Storage
0 C to +55 C
-40 C to +85 C
-15 C to +75 C
-50 C to +85 C
-40 C to +85 C
-60 C to +125 C
Humidity0% - 90% non-condensing0% - 95% non-condensing0% - 95% non-condensing
ShockN/A30 g peak for 11 ms40 g peak for 11 ms
- Sine
- Random
2 g (peak) 10 Hz to 100 Hz
0,04 g/Hz at 15 Hz to 2 kHz
2 g (peak) 5 Hz to 2 kHz
0,1 g/Hz at 15 Hz to 2 kHz
10 g (peak) 5 Hz to 2 kHz
0,1 g/Hz at 15 Hz to 2 kHz

Part Selector
Part NumberFormfactorGradeNumber of channels
CCII/HSS/XMC/8P/FP/COMXMCCommercial8 x RS-232/422/485,
4 x RS-232
CCII/HSS/XMC/8P/FP/INDXMCIndustrial8 x RS-232/422/485
4 x RS-232
CCII/HSS/XMC/8P/FP/RGDXMCRuggedised8 x RS-232/422/485
4 x RS-232
CCII/HSS/XMC/8P/BP/CCXMCConduction-Cooled8 x RS-232/422/485
CCII/HSS/XMC/4P/FP/COMXMCCommercial4 x RS-232/422/485
2 x RS-232
CCII/HSS/XMC/4P/FP/INDXMCIndustrial4 x RS-232/422/485
2 x RS-232
CCII/HSS/XMC/4P/FP/RGDXMCRuggedised4 x RS-232/422/485
2 x RS-232
CCII/HSS/XMC/4P/BP/CCXMCConduction-Cooled4 x RS-232/422/485

CH8SS007 Rev 0.1 2017-08-03
CCII Systems (Pty) Ltd P.O. Box 171 Rondebosch 7701  South Africa 
Telephone : (+27 21) 683 5490 Facsimile : (+27 21) 683 5435 WWW : www.ccii.co.za

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