EKF - Short Profile
EKF - Short Profile
Embedded Gold • Ready-for-Use Industrial PCB Assembly

GL700 • Single Pair Ethernet Switch

5 x 100BASE-T1 • 2 x 1000BASE-T
4-Way Power + Data M8 Hybrid Connectors IEC 63171-6

Automotive Ethernet • Industrial Ethernet • BroadR-Reach®



Product Information

Block Diagram

GL700 • SPE Switch

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Embedded Gold Ready-for-Use Industrial PCB Assembly

GL700 • Single Pair Ethernet Switch • 5 x 100BASE-T1 • 2 x 1000BASE-T
4-Way Power + Data M8 Hybrid Connectors IEC 63171-6

The GL700 Embedded Gold is a Single Pair Ethernet (SPE) switch designed for rugged industrial applications. The PCB assembly is provided with five 100BASE-T1 (IEEE 802.3bw) ports and in addition two 1000BASE-T RJ45 jacks for uplink and port expansion.
The 4-way circular M8 Hybrid SPE connectors are covered by the IEC 63171-6, combining power and data distribution. Any GL700 SPE port can deliver up to 2.3A at voltages up to 57V, individually protected by an eFuse.
The M12-A power input connector accepts 9-57VDC. As an option the board can be equipped with a terminal block power connector.

The GL700 is equipped with the Marvell® 88Q5072 Automotive Ethernet switch and is configured by default for self-managed operation. Its PHYs are fully inter-operable with the Open Alliance BroadR-Reach® (OABR) standard for automotive connectivity.
The GL700 is an assembly of the basic PCB and a riser card which accommodates the M8 Hybrid connectors. Switch port expansion (daisy-chaining) can be easily achieved by means of RJ45 Ethernet patch cables, connecting two or more GL700 together.
As GL710, the switch is also available with a mezzanine CPU card (GC370) for additional protocol support such as AVB/TSN, and Wi-Fi 6 wireless communication.


GL700 • Single Pair Ethernet Switch • M8-Hybrid Power & Data

Technical Features

  • 100BASE-T1 IEEE 802.3bw Ethernet switch
  • PCB assembly, intended for rugged applications, ready-for-use (Embedded Gold)
  • 5 x M8 Hybrid circular connectors (data & power), IEC 63171-6 (style 6J-M8CI), 100BASE-T1
  • 2 x RJ45 1000BASE-T Gigabit Ethernet connector
  • Intended for industrial and automotive use
  • Self-managed operation
  • AVB/TSN protocol stack under development
  • PCB Dimensions (basic card): 133mm (W) x 78mm (D) w/o connector overlap
  • Metal case, DIN rail bracket or wall mount plate
  • M12-A DC power connector
  • Sales option terminal block power connector
  • 9-57VDC power input operation
  • GC370 CPU card can be stacked for AVB/TSN protocol support

Front I/O
  • 2 x RJ45 connector1000BASE-T, 100BASE-TX, 10BASE-T compliant
  • 5 x 100BASE-T1 SPE front ports M8 Hybrid (4-way IEC 63171-6 style 6J-M8CI), data pair hipot isolated by transformers, power output protected by eFuse* (set to 1A by default), power output voltage corresponds approximately to power input voltage
  • 1 x M12-A 5-pin DC power input, for internal circuitry and as source for M8 Hybrid power lines
   * due to supply chain issues eFuses may be replaced by ordinary chip fuses

Power Requirements (DC Input)
  • DC Power input, 9-57V (e.g. 12VDC, 24VDC, 48VDC)
  • Absolute maximum input voltage 62VDC
  • Internal power consumption 2.5W max.
  • DC Power input fast acting chip fuse (PCB soldered type - no replacement on-site)
  • Protected against reverse polarity
  • ESD protection (TVS)
  • Common mode input filter
  • Option terminal block 3.5mm pitch 4-position screw lock power input
  • Power input voltage must be chosen to meet power output voltage requirements via the M8 Hybrid connector ports

Power Conditions M8 Hybrid SPE Connectors (DC Output)
  • DC Output voltage 9V to 57V
  • Output current limited to 1A per M8 Hybrid connector by default
  • Current limit 0.1A to 2.23A custom specific on request
  • Industrial eFuse* TPS26600 assigned to each M8 Hybrid connector (circuit breaker w. auto-retry)
  • DC Input voltage must be equal to DC output voltage provided at M8 Hybrid connectors (consider minor voltage drop between DC input voltage at M12 input power connector and M8 Hybrid connectors caused by internal circuitry)
   * due to supply chain issues eFuses may be replaced by ordinary chip fuses

Single Pair Ethernet Switch
  • Marvell® 88Q5072 11-port Automotive Ethernet switch AEC-Q100 Grade 2 qualified
  • 802.1Qat SR Aware 20Gbps switching engine
  • 2 Mbit packet memory +16 MAX addresses
  • Queue controller 8-Level QoS per port
  • 256 entry TCAM (ingress & egress)
  • 3 color ingress policy
  • Hardware support for Layer 3 static routing
  • AVB/TSN per queue shaping 802.1Qav/Qbv
  • 802.1AS & IEEE 1588/PTP
  • Advanced security features including deep packet inspection engine (DPI)
  • DoS (Denial of Service engine)
  • On-Board EEPROM up to 512kb for switch configuration
  • Integrated high-performance ARM® Cortex® M7 CPU 350MHz w. 1MB SRAM
  • Integrated IEEE 802.3bw 100BASE-T1 PHYs Single Pair Ethernet SPE
  • SPE PHYs configured as Master by default
  • Fully inter-operable w. Open Alliance BroadR-Reach® (OABR) PHYs
  • 2 x front port RJ45 connector 1000BASE-T (88EA1512 RGMII/SGMII PHY)
  • 5 x front port connectors M8 Hybrid (88Q5072 integrated 100BASE-T1 PHYs)
  • 2 x 5Gbps SERDES internal mezzanine connectors for custom specific hardware expansion
  • Simple switch expansion option (daisy-chaining) by connecting two or more GL700 boxes via RJ45 patch cables
  • AL710 available (GL700 with GC370 CPU card for protocol support)

  • Industrial networks - IIoT
  • AVB/TSN ready
  • Automotive gateway
  • In-vehicle networking
  • Automotive test equipment
  • Rugged environments
  • Edge computing
  • Transportation
  • Construction vehicles
  • Harvester

Software under Development (AL710)
  • More to come

Environmental, Regulatory
  • Designed & manufactured in Germany
  • Certified quality management according to ISO 9001
  • Long term availability
  • Rugged solution
  • RoHS compliant
  • Coating, sealing, underfilling on request
  • 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 EN55035, EN55032, EN62368-1 (CE)
  • MTBF tbd years
all items may be subject to technical changes

EKF is menber of the SPE Industrial Partner Network