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

PDF print version of this specification

The 8-Channel Ultra High-Speed Serial I/O XMC Adapter provides eight channels of simultaneous, high-speed (>20 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 Ultra 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 UHS XMC Adapter Block Diagram


The 8-Channel Ultra High-Speed Serial I/O XMC Adapter are intelligent adapters designed with NXP PowerQUICC II Integrated PowerPC Microprocessors as communication controllers. The PowerQUICC II processor can easily be configured to implement different serial protocols, thus thus allowing the adapters to keep up with technological advances. All high-speed serial I/O channels are implemented using the PowerQUICC II.


  • 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 4-Channel Ultra High-Speed Serial I/O XMC Adapter conforms to the CCXMC (Conduction-Cooled XMC Mezzanine Card) Standard, namely ANSI/VITA 20-2005 (S2018).


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

Host InterfaceSingle Lane; 2,5 GHz PCIe
Electrically : PCI Express Rev. 2.0
High-Speed Channels8 x SCC + 2 x SMC
High-Speed Channel ProtocolsSDLC, HDLC, BiSync, Asynchronous UART, custom
High-Speed Channel Data RateRS422/485 : 20 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 Clock16 MHz maximum
Asynchronous UART-only Channels4 or 2, 1 Mbit/s per channel maximum, RS-232 only, TxD, RxD, RTS, CTS
CPUNXP PowerQUICC II Integrated PowerPC Microprocessor
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 DriversVarious software drivers offered including for VxWorks, Linux and basic Windows operating systems as standard; others are costed options.
(*Standard PC HAL [Hardware Abastraction Layer] only)

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/UHS/XMC/8P/FP/COMXMCCommercial8 x RS-232/422/485,
4 x RS-232
CCII/UHS/XMC/8P/FP/INDXMCIndustrial8 x RS-232/422/485
4 x RS-232
CCII/UHS/XMC/8P/FP/RGDXMCRuggedised8 x RS-232/422/485
4 x RS-232
CCII/UHS/XMC/4P/FP/COMXMCCommercial4 x RS-232/422/485
2 x RS-232
CCII/UHS/XMC/4P/FP/INDXMCIndustrial4 x RS-232/422/485
2 x RS-232
CCII/UHS/XMC/4P/FP/RGDXMCRuggedised4 x RS-232/422/485
2 x RS-232
CCII/UHS/XMC/4P/BP/CCXMCConduction-Cooled4 x RS-232/422/485

CH8SS007 Rev 0.4 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