EKF - Short Profile
EKF - Short Profile

Low Profile Mezzanine Module for CompactPCI® PlusIO CPU Cards

M.2 NVMe SSD Storage • Backplane or Rear I/O Gigabit Ethernet



Ordering Information

Product Information

Block Diagram

General Information
Mezzanine Connectors

PlusIO Introduction

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Low Profile Mezzanine Card for PC7-FESTIVAL CPU

M.2 NVMe® SSD Storage • 2.5GBASE-T Ethernet for the Backplane

The P82-GBE is a low profile mezzanine expansion module which comes as a 4HP assembly together with the PC7-FESTIVAL CPU carrier card. It provides a Solid-State Drive mass storage solution, and in addition can supply the CompactPCI® PlusIO backplane with two Gigabit Ethernet ports.

The P82-GBE is equipped with an M.2 style PCIe® x4 socket, suitable for a NVMe® or SATA type SSD module, for installation of the operating system and also for data storage.

Two discrete Gigabit Ethernet controllers are provided on the P82-GBE, for CompactPCI® PlusIO backplane communication via the carrier CPU card J2 connector. The Intel® I226-IT NICs support 4-speed operation 10BASE-Te, 100BASE-TX, 1000BASE-T and 2.5GBASE-T.

The Ethernet backplane ports can be used either for a hybrid backplane as CompactPCI® Serial system expansion, or with a J2 rear I/O module.

P82-GBE • Photo Soon Here

Feature Summary

  • Proprietary size mezzanine module for PC7-FESTIVAL CPU card
  • Fits basically into the 4HP (20.32mm) envelope of the CPU carrier board
  • Typically delivered as a ready to use assembly unit (including CPU card)
  • Mounting position right (on top of a CPU board)

  Suitable CPU Carrier Card
  • PC7-FESTIVAL (2022 version) as of current

  Host I/F Connectors HSE1/HSE2, GBE
  • High speed mezzanine connectors
  • Suitable for PCI Express® Gen3
  • Bottom mount connectors HSE1, HSE2 (high speed expansion) and GBE (Ethernet)
  • Mating with the carrier card connectors HSE1/2 and GBE
  • Board-to-board height 10.0mm for a 4HP assembly


  • PCI Express® x4 support from CPU card to P82 (dedicated to the NVMe SSD module M.2 socket


  • PCI Express® 4x1 support from CPU Card to P82 (dedicated to the on-board Gigabit Ethernet controllers, two of 4 PCIe® links in use)


  • Dual Gigabit Ethernet support from P82 to the CPU Card (wired there to the J2 backplane connector according to the CompactPCI® PlusIO specification pin assignment)

  M.2 NVMe Module Connector

  • Single M.2 (formerly known as NGFF) socket, maximum M.2 size 2280
  • Suitable for an M.2 NVMe SSD module, key Id M, PCIe x4 I/F
  • PCIe x4 sourced via HSE1 mezzanine connector (option SATA)
  • Maximum (theoretical) 32Gbps I/O data transfer rate (Gen3 PCIe 8GT/s)
  • M.2 SATA SSD option (auto detect, only available with PC7-FESTIVAL CPU carrier card)
  • Module dimensions 2230/2242/2260/2280, screw fixed
  • Module height (Label) S1-S5 D1-D4
  • Power switch, undervoltage lockout, short-circuit protection, quick discharge

  • Two individual Intel® I225/226-IT networking interface controllers (NIC)
  • 2.5GBASE-T, 1000BASE-T, 100BASE-TX, 10BASE-T 802.3 specifications
  • -40°C to +85°C operating temperature 10M/100M/1G
  • -40°C to +70°C operating temperature 2.5G (I225)
  • -40°C to +85°C operating temperature 2.5G (I226)
  • UDP, TCP and IP checksum offload
  • 9KB Jumbo Frame support
  • Four transmit and four receive queues
  • IEEE 802.3az Energy Efficient Ethernet
  • Ultra-low power at cable disconnect (5mW)
  • Time Sensitive Networking (TSN)
  • IEEE 1588 - Basic time-sync (Precision Time Protocol)
  • IEEE 802.1AS-Rev - Higher precision time synchronization with multiple (dual) clock masters
  • IEEE 802.1Qav - Credit Based Shaping and Basic scheduling
  • IEEE 802.1Qbu - Frame Preemption
  • IEEE 802.1Qbv - Time Aware Shaper
  • IEEE 802.3br - Interspersing Express Traffic
  • PCIe® PTM for synchronization between the NIC and Host timers

  Mezzanine Expansion Option
  • Option side card connector 5 x USB 3.0
  • 4 x via optional uPD720201 on-board controller, 1 x derived from HSE1 connector (CPU card)
  • Erni/Tyco Microspeed mezzanine connector for board-to-board space 7mm
  • 8HP assembly stack with side card
  • Custom specific side card design offered by EKF

  • Low profile mezzanine module for EKF CPU Card PC7-FESTIVAL
  • 4HP assembly CPU carrier board and P82-GBE mezzanine card
  • Adds SSD mass storage and backplane Ethernet networking to the CPU carrier
  • M.2 based mass storage, 1 x M.2 PCIe x4 socket (NVMe) or SATA
  • On-board GbE NICs for backplane communication (CompactPCI® Serial slots) or passive RIO module

  Regulation & Environmental
  • Designed & manufactured in Germany
  • ISO 9001 certified quality management
  • Long term availability
  • Rugged solution
  • Coating, sealing, underfilling on request
  • Lifetime application support
  • RoHS compliant
  • Operating 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
  • EC Regulatory EN55024, EN55032, EN62368-1
  • MTBF tbd years (MIL-HDBK-217F, SN29500 @+40C)

P82-GBE • Simplified Block Diagram

P82-GBE • Simplified Block Diagram
Ordering Information
Please refer to List 21 for popular SKUs