EKF - Short Profile
EKF - Short Profile


CompactPCI® Serial • Quad M.2 WWAN Module Carrier

4-Way Antenna Signal Combiner/Splitter
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CompactPCI® Serial  Quad M.2 WWAN Module Carrier Board
4-Way Antenna Signal Combiner/Splitter

The SPX-PHASE is a peripheral slot card for CompactPCI® Serial systems. The board serves as a quad carrier for M.2 3042 style WWAN modules, e.g. 3G or 4G (LTE) modems, and forthcoming technologies beyond 4G. Four front panel Mini SIM card slots are provided, related to the M.2 module sockets.

The R/F module connectors are strapped to an on-board 4:1 R/F combiner circuit. While maintaining good isolation between the inputs, the combiner has its low loss R/F sum port wired to the SMA type front panel antenna connector, for minimum external antenna cabling effort.

As an option, the SPX-PHASE can be equipped with a custom specific 8HP or 12HP front panel, providing up to six or twelve more antenna connectors, which would be strapped directly to the module W.FL type R/F jacks, hence bypassing the R/F combiner circuit.

An on-board PCI Express® to quad USB 3.0 5Gbps controller is used as upstream connection from the M.2 sockets to the CompactPCI® Serial CPU card.

The SPX-PHASE is well suited especially for higher throughput applications which require WWAN bandwidth aggregation.


Feature Summary

  • General
    • PICMG® CompactPCI® Serial Standard (CPCI-S.0) Peripheral Slot Card
    • Single Size Eurocard 3U 4HP 100x160mm2
    • CompactPCI® Serial backplane Connector P1
    • Suitable for PCIe x1 Gen2 peripheral slots
  • USB Controller
    • Texas Instruments PCI Express® to quad-port USB 3.0 controller TUSB7340
    • PCI Express® x 1 Gen2 interface for optimum performance
    • USB 3.0 xHCI (eXtensible host controller interface) SuperSpeed supported
    • USB 2.0 high-speed, full-speed, low-speed supported
    • Drivers available for download
  • M.2 Sockets
    • 4 x M.2 sockets, for 30mm x 42mm cards, B-key
    • Socket 2 WWAN configuration according to PCI Express M.2 Specification Rev. 1.1 2016
    • USB controlled host I/F, USB 3.0 and USB 2.0
    • Future proof by USB 3.0 SuperSpeed, maximum data rate 5Gbps full duplex
    • Legacy compliant 2G/3G/4G (LTE) by USB 2.0 480Mbps
    • +3.3V power supply, 3.7A typ. current limited electronic power switches, option I2C controlled M.2 socket power on/off
    • F/P Mini SIM card holder associated to each socket, 2 x dual-slot
    • Suitable for 25mm x 15mm 2FF UICC, often referred to as 'Standard SIM'
    • Front panel screw lock solution available for Mini SIM cards
    • Front panel LED array associated to M.2 modem LED outputs
    • Common F/P antenna connector SMA R/P for simplified external antenna cabling
    • Custom specific F/P design for additional pigtail antenna connectors (8HP/12HP width)
  • R/F Combiner/Splitter Circuit
    • Mini-Circuits SEPS-4-272+, on-board soldering, 4:1
    • 690-2700MHz, 50 Ohm
    • Isolation 20dB typ.
    • nsertion loss 7dB typ. 800-2200MHz
    • Active antenna DC current 1A max. (250mA per port)
    • On-board R/F strapping from M.2 WWAN modules (e.g. diversity antenna connector) to combiner/splitter via e.g. Hirose W.FL or I-PEX MHF4 or Murata HSC (2x2mm2) coaxial connectors and cable assemblies
    • Combiner/splitter bypassing option w. pigtail antenna connectors (custom specific F/P required e.g. 8HP width)
  • Applications
    • WWAN e.g. 3G 4G LTE with or w/o data transfer rate aggregation
    • Railway, transportation
    • Industrial IoT networking
  • Environment & Regulation
    • Designed & manufactured in Germany
    • Certified quality management according to ISO 9001
    • Long term availability
    • Rugged solution (coating, sealing, underfilling available on request)
    • 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
    • MTBF 58.6 years
    • EC Regulations EN55022, EN55024, EN60950-1 (UL60950-1/IEC60950-1)

SPX-PHASE - Simplified Block Diagram

SPX-PHASE - Simplified Block Diagram


SPX-PHASE w. SIM Card Screw Lock Plate

SPX-PHASE 19-Inch Cluster

SPX-PHASE 19-Inch Cluster
Ordering Information
Please refer to List 21 for popular SKU
EKF is an ISO-9001 certified company
EKF Elektronik GmbH • Philipp-Reis-Str. 4 • 59065 Hamm • Germany
Phone +49 (0)2381/6890-0 • Fax +49 (0)2381/6890-90 • E-Mail