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NL33 - Robust 24-Port Fully Managed Ethernet Switch

Layer 2/3 Switch with M12 Front Connectors & Fiber Option

Rugged 24-port Gigabit Ethernet switch with layer 2/3 extension, M12 connectors and optional fiber-optics on the front panel.

  • NL33 Product ImageNL33 - 24-Port Fully Managed Ethernet Switch
  • NL33 Product Image

Main Features

  • 24x 10/100/1000BASE-TX ports
  • 2x 10/100/1000BASE-TX uplink ports with bypass relay on one uplink pair
  • M12 A-, D- or X-coded (screwed and push-pull)
  • Ultra-wide range rail power supply: 24 V DC to 110 V DC
  • ITU-T G.8031/G.8032 Ethernet linear and ring protection switching
  • 2x 1000BASE-SX fiber uplink (Q-ODC) (optional)
  • -40 °C to +70 °C (+85 °C), fanless
  • EN 50155 compliant (railways)
NL33 Product Image

Technical Data

Switch Key Features
  • Switching matrix
    • Total switching capacity of chipset: 29 Gbit/s
    • MAC address table size: 8192
    • Switching algorithm: Store-and-forward, TCAM high-speed (Ternary Content-Addressable Memory)
  • General network support
    • IPv4
    • IPv6
    • IPv6 Ready Logo approved
  • Protocols and functionality
    • DHCP ARP inspection
    • DHCP Option 82
    • DHCP Server/Client
    • DHCP snooping
    • DNS Client (RFC 2136)
    • DNS Proxy (RFC 5625)
    • IEEE 1588v2 PtP
    • One-step and two-step clocks
    • Transparent clock
  • Ports and port control
    • Energy Efficient Ethernet (IEEE 802.3az)
    • ETH Signal Equalization and Power Control
    • Inband management (VRAP)
    • Port frame size (Jumbo Frames: 9216 bytes/packet max.)
    • Port state (admin), speed, duplex mode and flow control
    • Port status (link monitoring) and statistics (MIB counters)
    • Port VeriPHY (cable diagnostics), ActiPHY and PerfectReach
  • User configuration interfaces
    • Command line interface (CLI) via console, SSHv2, Telnet
    • Web interface (HTTP/HTTPS) via IPv4, IPv6
  • See the firmware product page for more information on the switch firmware features.
    • 14ETSW-02
  • This product includes interface options
  • Ethernet
    • 2 × 1000BASE-SX, Q-ODC, receptacle
    • 24 × 10/100/1000BASE-T, M12, X-coded, receptacle
    • 24 × 10/100/1000BASE-T, M12, A-coded, receptacle
    • 22 × 10/100BASE-T, M12, D-coded, receptacle
    • 2 × 10/100/1000BASE-T, M12, A-coded, receptacle
    • D-coded connectors are always combined with two A-coded connectors for uplink.
    • For possible combinations contact MEN.
  • Serial
    • 1 × RS232, non-isolated, M12, A-coded, receptacle (console port)
  • LED
    • Status: power status, system status
    • Ethernet: link, activity
  • Power
    • 1 × power in, M12, A-coded, plug
  • Earthing connection
    • M6 screw
Supervision and Control
  • Temperature measurement
  • Watchdog timer
Electrical Specifications
  • Supply voltage: 24 V DC to 110 V DC nom. (EN 50155)
  • Power consumption: 30 W max.
Mechanical Specifications
  • Dimensions: (W) 390 mm, (D) 236 mm, (H) 89 mm
  • Weight: 6.55 kg max.
  • Mounting
    • Rack-mount in 19" cabinet
    • Wall-mount
  • Cooling: Air cooling, natural convection, airflow 0.4 m/s
  • Protection rating: IP30
Product Compliance: Rail - Rolling Stock
  • Operating temperature: -40 °C to +70 °C, +85 °C for 10 min (EN 50155:2017, class OT4, ST1)
  • Rapid temperature variations: EN 50155:2017, class H1, no requirements
  • Storage temperature: -40 °C (EN 50155:2017) to +85 °C (EN 60068-2-2, Bb)
  • Altitude: +3000 m max. (EN 50125-1:2014, class AX)
  • Pollution degree: EN 50124-1:2017, class PD2
  • Humidity: +55 °C and +25 °C, 100 % RH max. (EN 50155:2017)
  • Shock: 30 ms @ 50 m/s² (EN 61373:2010/AC:2017-09, vehicle body, cat. 1, class B)
  • Vibration: 10 min @ 2.02 m/s² (functional) and 5 h @ 11.44 m/s² (long-life) (EN 61373:2010/AC:2017-09, vehicle body, cat. 1, class B x 2)
  • Power supply
    • General compliance with power supply requirements of EN 50155:2017
    • Interruption of voltage supply: 10 ms (EN 50155:2017, class S2)
  • Electrical safety
    • EN 50124-1:2017
    • EN 50153:2014 + A1:2017
    • EN 50155:2017
    • EN ISO 13732-1:2008
  • Fire protection: EN 45545-2:2013 + A1:2015, HL3
  • EMC emission
    • EN 50121-3-2:2016
    • Regelung Nr. EMV 06 :2019-05-09 (2.0), Anhang E: Messung an Geräten
  • EMC immunity: EN 50121-3-2:2016
  • Protective coatings: EN 50155:2017, class PC2 (Any PCB protected on both sides)
  • Useful life: 20 years (EN 50155:2017, class L4)
370 694 h predicted @ 40 °C according to IEC/TR 62380 (RDF 2000)

Ordering Information

Standard NL33 Models

Fully managed 24-port Ethernet switch, 22x 10/100BASE-TX on M12 D-coded, 2x 10/100/1000BASE-TX on M12 A-coded (uplink), -40°C to +70°C (+85°C), conformal coating

Miscellaneous Accessories

19" mounting kit for large box PCs (BL)

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Ethernet switch management firmware (Gen 2) including SNMP MIBs and open-source license compliance documentation

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