EKF - Short Profile
EKF - Short Profile


CompactPCI® Serial • 9-Port Gigabit Ethernet Switch

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Product Information
Block Diagram
M12-X Connector
Ethernet Switch
Application Example
Internet in Trains

General Information
CPCI Serial Concept

SL2-BRASS • 9-Port Gigabit Ethernet Switch

SL2-BRASS • Industrial GbE Switch Fabric

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CompactPCI® Serial • 9-Port Gigabit Ethernet Switch

The SL2-BRASS is a 9-port Gigabit Ethernet switch on a peripheral slot card for CompactPCI® Serial systems. The on-board Marvell® 88E6390 GbE switch provides a rich feature set and includes an integrated microprocessor to enable lightly managed switches.

While four 1000Base-T GbE ports are wired to associated M12 X-coded front panel receptacles, another four GbE ports are available for backplane communication via the CompactPCI® Serial connector P6.

M12 X-coded connectors are optimized for industrial applications, and also for railway usage. X-coded cables and connectors comprise four data signal pairs and comply with Cat6A. Hence, M12 X-coded installations are ready for the forthcoming 2.5/5/10G Ethernet.

As an option, the SL2-BRASS is available with an Intel® I210-IS Gigabit Ethernet controller (NIC) in addition, which is internally connected to an SGMII/Serdes port of the GbE switch. Usage of the NIC is based on a PCIe Express® enabled CompactPCI® Serial slot (via backplane connector P1).

The Gigabit Ethernet switch provides latest features such as 802.1 Audio Video Bridging (AVB/TSN) and Quality of Service (QoS) support.

Multiple SL2-BRASS boards on a suitable CompactPCI® Serial backplane can be cascaded to a switch fabric with a scalable number of GbE ports, with or w/o a CPU card on the backplane system slot. When completed with a CompactPCI® Serial CPU board and an LTE module carrier card, a high performance router system can be configured.


SL2-BRASS • 9-Port GbE Switch

As the main component, the SL2-BRASS is equipped with a Marvell® 88E6390 Gigabit Ethernet switch. This device provides eight ports with integrated Gigabit Ethernet transceivers (PHY) and another three MAC ports with digital interfaces (2 x SerDes/SGMII, 1 x RGMII).

A total of nine GbE ports are in use on-board, wired to the front panel receptacles (4), and the CompactPCI® Serial backplane connector P6 (up to 4). One of the SerDes ports is connected internally to the optional on-board Gigabit Ethernet controller.

The SL2-BRASS can be inserted into any CompactPCI® Serial peripheral slot. A single PCI Express® lane would be sufficient for communication via the on-board Gigabit Ethernet controller. The CompactPCI® Serial backplane connector P1 is populated anyway, for +12V power supply.

The backplane connector P6 will be provided as an option, to be used with a Gigabit Ethernet star architecture, which would allow to cascade up to eight SL2-BRASS cards with or w/o need of a CPU card.

Feature Summary

  • PICMG® CompactPCI® Serial standard (CPCI-S.0) peripheral slot card or system slot card
  • Single Size Eurocard 3U 4HP 100x160mm2
  • CompactPCI® Serial backplane connectors P1, P6
  • Suitable for PCIe® x 1 capable standard peripheral slots (for option on-board NIC)
  • Suitable for CompactPCI® Serial backplane with star archtitecture Ethernet (P6)

Front Panel I/O
  • 4 x M12 X-coded front panel GbE receptacles, rail approved, Cat6A, IEC 61076-2-109
  • 1000BASE-T, 100BASE-TX, 10BASE-T compliant data transfer rate front ports
  • Future proof investment into cabling infrastructure - up to 10Gbps with M12 Cat6A
  • M12 X-coded to RJ45 connector Cat6A cable assemblies available from several suppliers

Backplane I/O (Option)
  • CompactPCI® Serial backplane connector P1 used for PCI Express® x 1 lane to optional Intel® I210-IS Gigabit Ethernet Controller
  • Option GbE backplane communication - CompactPCI® Serial backplane connector P6 used for 4 x GbE over backplane
  • CompactPCI® Serial star type Ethernet architecture backplane suitable for control via system slot CPU card, up to eight SL2-BRASS individually connected to system slot CPU P6 Ethernet ports, for a total of up to 32 x M12 linked front panel switch ports (link type depends on CPU card P6 solution either switch or NIC)
  • CompactPCI® Serial star type Ethernet architecture backplane suitable for cascading of up to five SL2-BRASS w/o CPU card, one SL2-BRASS master (system slot) is wired via P6 to a maximum of four SL2-BRASS slave boards (peripheral slots), for a total of up to 20 x M12 directly interconnected front panel switch ports
  • CompactPCI® Serial backplane w/o P6, suitable for CPU control over up to eight SL2-BRASS by means of the optional on-board NIC, for a total of up to 32 x M12 front panel switch ports, for highest application flexibility (routers, LAN segmentation e.g.)

Gigabit Ethernet Switch
  • Marvell® 88E6390 based Gigabit Ethernet switch (in use 8 x GbE MAC/PHY 1000BASE-T, 1 x GbE MAC/SerDes)
  • High performance, non-blocking, Gigabit Ethernet
  • Support for up to 16K MAC addresses, 10KByte Jumbo Frames
  • Supports 802.1 Audio Video Bridging (AVB) Gen 2
  • Time Sensitive Networking (TSN) Standards, IEEE 1588v2 one-step PTP
  • Synchronous Ethernet
  • Quality of Service (QoS) support with 8 traffic classes
  • Supports 4096 802.1Q VLANs, three levels of 802.1Q security
  • Unmanaged or managed solution
  • Integrated microprocessor (IMP) enables enhanced managed switch designs (customer programming)
  • IMP GUI debugger w. ANSI C compiler & assembler available on request from Marvell®
  • Remote (in-band) management available on request via Marvell® SOHO Switch GUI Software
  • Configurable in-band management through SerDes/SGMII switch port (connected to the optional on-board NIC), or GbE PHY switch port via P6 backplane Ethernet (1_ETH)

Gigabit Ethernet Controller (Option)
  • Intel® I210-IS Gigabit Ethernet controller internally wired to GbE switch via SerDes
  • 9.5KB Jumbo Frame support
  • Hardware-based time stamping (IEEE 1588) and support for 802.1AS
  • Option IEEE 802.1Qav compliant Audio-Video Bridging (AVB)
  • IPv4, IPv6, TCP/UDP checksum offloads
  • Based on PCI Expess® x 1 from CompactPCI® Serial backplane connector P1
  • Driver support for all major operating systems

  • Scalable (modular) GbE switching based on 19-inch rack mounting
  • Light in-band management
  • Railway usage via front panel M12 cabling
  • Industrial IoT networking - TSN

Environmental, Regulatory
  • Designed & manufactured in Germany
  • Certified quality management according to ISO 9001
  • Long term availability
  • Rugged solution
  • Ccoating, sealing, underfilling available on request
  • RoHS compliant
  • Operating temperature 0°C to +70°C (commercial temperature range) available
  • Operating temperature -40°C to +85°C (industrial temperature range) available
  • 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 54.5 years (MIL-HDBK-217F, SN29500 @+40°C)
  • EC Regulatory EN55035, EN55032, EN62368-1 (CE)
  • Power consumption 12V/0.4A max.

SL2-BRASS - Simplified Block Diagram

SL2-BRASS - Simplified Block Diagram


SL2-BRASS • Front Cables M12-X attached

Scalable Industrial Switch Fabric

SL2-BRASS • Scalable Industrial Switch Fabric
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