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Diamond Point International

Aitech S750 - Radiation Tolerant Gigabit Ethernet PMC Switch

Managed 16-Port Gigabit Ethernet Switch, Layer 2 and Layer 3 Management


The S750 provides a four (4) port Gigabit Ethernet switch in a compact, single width, PMC form-factor. Based upon a large capacity, space-rated Xilinx FPGA, the S750 provides GbE switch performance in a radiation-tolerant, space-rated product. The FPGA based S750 provides the unique ability for the performance to be quickly customized to meet the most demanding Earth orbit or deep space applications.

The feature set provided by the S750 product is as follows:

  • Designed to operate and host on the Aitech S950 or SP0 Single Board Computer (SBC)
  • Optimized to switch and transfer data between the SBC and each S750 GbE network port
  • Switches data between all ports based on the Media Access Control (MAC) Forwarding Table
  • Stores dynamically learned host MAC addresses of devices connected to the S750 in the MAC Forwarding Table
  • Provides real-time status to the SBC software using memory-mapped access over the local PCI bus
  • Operational switch status and functions of each Ethernet port are presented to the SBC target software application via the Local PCI bus
  • Onboard 1500-byte FIFO and DMA data fed directly into a pre-defined 8-MBytes buffer on the S950 triple-voted volatile memory for data traffic. VxWorks END driver provided for the host (primitive) port
  • Supports transmit and receive Internet Protocol Version 4 (IPv4) RFC 791, User Datagram Protocol (UDP) RFC 768 (TBR 114) and Transmission Control Protocol (TCP) data packets
  • Managed via software on the host carrier PMC mother board


Main Specification

FunctionPMC Network Interface Card (NIC) with Four port, Layer-2 Gigabit Ethernet Switch designed for Space Environments
Interface(s)Four 10/100/1000BaseT Full Duplex (FD) Ethernet ports
One host (primitive) port provides network access for an Aitech SBC via the local PCI bus
Connection(s)All Ethernet ports rear I/O via the host SBC to the cPCI backplane


Electrical+3.3V (±5%), 2.42 A (typical)
MechanicalConduction cooled form factor per ANSI/VITA20-2001 for installation on top of an IEEE 1101.2 or ANSI/VITA 30.1 conduction-cooled mother boardsuch as the S950 or CM950.
Conduction-cooled 74mm X 149 mm form factor per ANSI/VITA 20-2001 standard.
Conformal CoatingConformal optional (series 100), standard (series 200/500). Acrylic or Silicone
TemperatureSeries-100 Lab Grade EDU
• Temperature range (operation): 0 to +55°C
• Temperature range (storage): -40 to +85°C

Series-200 Qual Unit
• Temperature range (operation): -40 to +71°C
• Temperature range (storage): -50 to +100°C

Series-500 Radiation Tolerant Flight Unit
• Temperature range (operation): -40 to +65°C (space vacuum)
• Temperature range (storage): -62 to +125°C

Ruggedization level is determined in the part numbering scheme - refer to datasheet for further details
HumiditySeries-100 Lab Grade EDU: 0-90%
Series-200 Qual Unit: 0-100% (coating as standard)
Series-500 Radiation Tolerant Flight Unit: 0-100% (coating as standard)
AltitudeSeries-100 Lab Grade EDU: 15,000ft
Series-200 Qual Unit: 70,000ft
Series-500 Radiation Tolerant Flight Unit: 10 to the -4 Torr
VibrationSeries-100 Lab Grade EDU:
• Random (g2/Hz): 20-2000Hz/0.02 g2/Hz
• Sine (g PEAK): 10-100Hz/2g

Series-200 Qual Unit:
• Random (g2/Hz): 20-2000Hz/0.1 g2/Hz
• Sine (g PEAK): 50-500Hz/10g

Series-500 Radiation Tolerant Flight Unit:
• Conduction-cooled: Random (g2/Hz): 20-2000Hz/0.1 g2/Hz
• Conduction-cooled: Sine (g PEAK): 50-500Hz/10g
ShockSeries-100 Lab Grade EDU: 20g/6mS
Series-200 Qual Unit: 40g/11ms, 100g/6ms
Series-500 Radiation Tolerant Flight Unit: 40g/11ms, 100g/6ms (pyro-shock 875g)
Warranty1 Year

Ordering Details

BoardRefer to datasheet for ordering part number scheme