GM3 - Quad Gigabit Ethernet Rear I/O Card (Product Discontinued)

The GM3 is a mezzanine card which is plugged onto CompactPCI Serial CPU boards to implement four Ethernet interfaces on the backplane.

The CompactPCI Serial standard defines up to eight Ethernet interfaces, which can be connected in a star or in full mesh architecture via the backplane. The GM3 is used to implement four Gigabit Ethernet interfaces, which are led to the backplane via CompactPCI Serial connector P6. All four interfaces are controlled by one Ethernet controller, which supports the IEEE 802.3x standard.

In addition, the GM3 also provides a mSATA SSD slot.

The board is screened for operation in the extended temperature range of -40 to +85°C.


  • Mezzanine card for CompactPCI Serial CPU boards
  • Four 10/100/1000Base-T Ethernet channels
  • Support of full mesh and star architecture
  • Wake-on-LAN
  • Fully integrated to comply with IEEE802.3u and IEEE802.3ab
  • TCP/IP checksum offload
  • -40 to +85°C screened