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G303 - Unmanaged 16-Port Industrial Ethernet Switch

3U CompactPCI Serial

The G303 is an unmanaged rugged industrial Gigabit Ethernet switch implemented as a CompactPCI Serial board with up to 16 Ethernet ports.

  • G303 Product ImageG303 3U CompactPCI Serial Unmanaged 16-Port Gb ETH Switch
  • G303 Product ImageG303 3U CompactPCI Serial Unmanaged 16-Port Gb ETH Switch
  • G303 Product ImageG303 3U CompactPCI Serial Unmanaged 16-Port Gb ETH Switch
  • G303 Product Image
  • G303 Product Image
  • G303 Product Image

Main Features

  • Unmanaged 16-port rugged Ethernet switch
  • Up to 16 Gigabit Ethernet ports on rear I/O
  • Or 3 ports on front and up to 13 ports on rear
  • LEDs for front port and board states
  • -40°C to +85°C
  • EN 50155 class TX compliant (railways) 
  • PICMG CPCI-S.0 CompactPCI Serial peripheral card
G303 Product Image

Technical Data

Key Features
  • High-speed non-blocking, store-and-forward switching
  • Up to three 10/100/1000Base-T ports at front panel (Electrical isolation: 1500 Vrms)
  • Up to sixteen 10/100/1000Base-T ports at rear connector (Electrical isolation: 100 Vrms)
  • Port configuration: copper, 10/100 and 1000 Mbit/s
  • Auto-negotiation / Auto MDI/MDIX crossover on all ports
  • 8K MAC address lookup table with automatic learning and aging
  • Up to 4096 VLANs
Supported Protocols and Standards
Port-based VLANs
Front I/O
  • Three Ethernet ports on RJ45 or M12 connectors
  • Six link and activity Ethernet status LEDs (2 per channel)
Rear I/O
Up to 16 Ethernet links
CompactPCI Serial
  • Compliance with CompactPCI Serial PICMG CPCI-S.0 Specification
  • System or Peripheral slot
Electrical Specifications
Supply voltage/power consumption
  • +12 V (+/-10%), approx. 13 W max.
Mechanical Specifications
  • Dimensions: conforming to CompactPCI Serial specification for 3U boards
  • Front panel: 4HP with ejector
  • Weight: 156 g (with RJ45 connectors)/tbd g (with M12 connectors)
Environmental Specifications
  • Temperature range (operation):
    • -40..+85°C
    • Airflow: 1.0 m/s
  • Temperature range (storage): -40..+85°C
  • Relative humidity (operation): max. 95% non-condensing
  • Relative humidity (storage): max. 95% non-condensing
  • Altitude: -300 m to +3000 m
  • Shock: 50 m/s², 30 ms (EN 61373)
  • Vibration (function): 1 m/s², 5 Hz - 150 Hz (EN 61373)
  • Vibration (lifetime): 7.9 m/s², 5 Hz - 150 Hz (EN 61373)
  • Climatic tests according to EN 68068
  • Fully EN 50155-compliant (Power Interruption Class 2, Temperature Class TX)
887 895 h @ 40°C according to IEC/TR 62380 (RDF 2000)
Flammability (PCBs)
  • PCB manufactured with a flammability rating of 94V-0 by UL recognized manufacturers
EMC Conformity
  • EN 55022 (radio disturbance)
  • EN61000-4-2 (ESD Immunity)
  • IEC 61000-4-4 (burst)


Ethernet Switch
Managed version G302
Front Connectors
RJ45 connectors or M12 connectors
Front I/O, Rear I/O
Flexible combination of front and rear ports
  • Three ports on front and up to 13 ports on rear
  • Up to 16 ports on rear (suitable for conduction cooled version)
Environmental specifications
Conformal coating
Cooling Concept
Also available with conduction cooling in MEN CCA frame
Some of these options may only be available for large volumes.
Please ask our sales staff for more information.

Ordering Information

Standard G303 Models

G303, 3U CompactPCI Serial, 11-port unmanaged Gigabit Ethernet switch, 8 links on backplane plus 3 RJ45 on front, -40..+85°C with qualified components

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