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SF4 - Unmanaged 8-port Rugged Ethernet Switch with M12
 

3U 19" Industrial Stand-Alone Device

This product has been discontinued.

The SF4 is a stand-alone, unmanaged industrial Fast Ethernet switch that comes in a compact 3U, 22HP, 19" cassette. It was specifically designed for rugged mobile systems, e.g., in transportation.

Download data sheet

  • SF4 Product ImageSF4 Railway Ethernet Switch
  • SF4 Product Image

Main Features

  • Unmanaged 8-port rugged Ethernet switch
  • 3U, 22 HP, 19" rack mountable
  • 8 Fast Ethernet ports (front) on M12 connectors
  • Power over Ethernet PSE functionality
  • Service interface via D-Sub
  • LEDs for port, PoE and board states
  • Wide input range PSU (14.4 to 154 V), EN 50155 qualified (railways)
  • -40 to +70(+85)°C according to EN 50155 Class Tx with qualified components
  • Conformal coating
SF4 Product Image

Technical Data

Key Features
  • High-speed non-blocking, store-and-forward switching
  • Eight 10/100Base-T ports at front panel (Electrical isolation: 1500 Vrms)
  • Port configuration: copper, 10/100 Mbit/s
  • Auto-negotiation / Auto MDI/MDIX crossover on all ports
  • Layer2-based Policy Control List
  • 8K MAC address lookup table with automatic learning and aging
  • Up to 4096 VLANs
Supported Protocols and Standards
  • Ethernet flow control (IEEE 802.3x)
  • Link aggregation LACP / EtherChannel (IEEE 802.3ad, 2005)
  • Priority-based switching, Quality of Service/DiffServ, tagged frames, Layer2-based 801.1Q VLAN-ID packet routing (IEEE 802.1p)
  • Port-based authentication on registered MAC Address Lists
  • Power over Ethernet support (IEEE 802.3af / IEEE 802.3at, Type 1)
  • TCP/IP v4 and v6
  • VLAN/port-based VLANs GVRP/MVRP (IEEE 802.1Q Rev D5.0, 2005)
Power Over Ethernet Features
Power over Ethernet functions on ports 1 and 2
  • PSE (Power Sourcing Equipment) function
  • Supplies one PD class 0 device or two PD class 2 devices (up to 15W total)
Service Interface
  • 9-pin D-Sub connector at front
  • SPI interface for external SPI programmer
Front I/O
  • Eight Ethernet ports via M12 connectors
  • One service interface via 9-pin D-Sub plug connector
  • One power input via mixed 7-pin D-Sub plug connector
  • Sixteen link and activity Ethernet status LEDs (two per channel)
  • Four Power over Ethernet status LEDs, two each for ports 1 and 2
  • Status LEDs for power and reset
Electrical Specifications
  • Power supply unit
    • 14.4..154 VDC wide range according to EN 50155
  • Isolation (according to EN 50155)
    • Input/output: 1500 Vrms
    • Input/shield: 1500 Vrms (7W2 D-Sub power connector: 1000 Vrms)
    • Output/shield: 1500 Vrms
    • Ground/shield: 1500 Vrms
    • Service connector: 1000 Vrms
  • Power consumption: 24 W (incl. 15 W PoE)
Mechanical Specifications
  • 19" rack-mount standard
  • Dimensions: 3U, 22HP, 168 mm depth
  • Weight: 970 g
Environmental Specifications
  • Temperature range (operation):
    • -40..+70°C (qualified components, +85°C for ten minutes according to EN50155 Class Tx)
  • 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: according to EN 60068-2-27
  • Bump: according to EN 60068-2-29
  • Vibration (sinusoidal): according to EN 60068-2-6
  • Conformal coating
MTBF
479 534 h @ 40°C according to IEC/TR 62380 (RDF 2000)
Safety
Flammability
  • PCBs 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)
  • IEC 61000-4-5 (surge)

Options

Ethernet Switch
Fixed managed version
  • With fixed configuration according to customer requirements
Ethernet-powered version without PSU (on request)
Class 2 Powered Device supplied via Ethernet Port 1
  • No internal power supply unit
Some of these options may only be available for large volumes.
Please ask our sales staff for more information.

Ordering Information

Miscellaneous Accessories
05RS01-03

Cable set for G302, RSx and 19" rack-mountable SFx switches, consisting of: 4 Ethernet cables (M12 to RJ45), 1 service adapter (M12 to D-sub), 1 service cable, 1 dongle adapter (D-Sub to M12), 1 power cable (M12 to open end), -40 to +85°C