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NM31 - Fully Managed 8-Port Industrial Ethernet Switch with PoE
 

Rugged Embedded Railway & Automotive Network Box

The NM31 family is a range of 8-port fanless and maintenance-free managed Power over Ethernet switches with IP40 protection, developed specifically for rough environmental conditions in rolling stock and automotive applications.

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  • NM31 Product ImageNM31 Managed 8-Port Rugged Industrial Ethernet Switch
  • NM31 Product ImageNM31 Managed 8-Port Rugged Industrial Ethernet Switch
  • NM31 Product ImageNM31 Managed 8-Port Rugged Industrial Ethernet Switch
  • NM31 Product Image
  • NM31 Product Image
  • NM31 Product Image

Main Features

  • Fully managed 8-port rugged Ethernet switch
  • M12 D, A or X-Coded connectors on the front panel
  • 10/100 (Fast) or 10/100/1000 Mbit/s variants
  • 29 Gbit/s carrier grade switching matrix
  • ITU G.8031/G.8032 Ethernet Linear/Ring Protection
  • PoE+ Power Sourcing Equipment (PSE ), up to 60 W output power
  • Fanless and maintenance-free design
  • Ultra wide range power supply input (14.4 to 154 V DC) with interruption class S2
  • -40°C to +70 (+85)°C with qualified components
  • Compliant to EN 50155 (railways)
NM31 Product Image

Technical Data

Supported Port Types
The following configurations are available:
  • 8x 10/100BASE-T fully managed switch with D-coded connectors, 8x PoE + PSE with max. 60 W output power (Model: 09NM31-01)
  • 8x 10/100/1000BASE-T fully managed switch with A-coded connectors, 8x PoE + PSE with max. 60 W output power (Model: 09NM31-03)
  • 8x 10/100/1000BASE-T fully managed switch with X-coded connectors, 8x PoE + PSE with max. 60 W output power (Model: 09NM31-05)
Protocols and Functionality
  • IEEE 802.3 for 10BASE-T
  • IEEE 802.3u for 100BASE-T
  • IEEE 802.3ab for 1000BASE-T
  • General Network Support
    • IPv4
    • IPv6 Ready
    • IPv6 Ready Phase 2
  • Host Configuration Protocols
    • DHCP Server / Client
    • DHCP Option 82
    • DHCP Snooping
    • DHCP ARP Inspection
  • DNS
    • DNS Client (RFC 2136)
    • DNS Proxy (RFC 5625)
Ports and Port Control
  • Energy Efficient Ethernet (IEEE 802.3az)
  • ETH Signal Equalization and Power Control
  • Port state (admin), speed, duplex mode and flow control
  • Port frame size (Jumbo Frames: 9216 Bytes max.)
  • Port status (link monitoring) and statistics (MIB counters)
  • Port VeriPHY (cable diagnostics), ActiPHY and
  • PerfectReach
  • Inband management (VRAP)
Switch Management and Monitoring
  • OAM
    • Link OAM: IEEE 802.3ah (a.k.a. EFM)
    • CFM: IEEE 802.1ag
    • ITU-T Y.1731 Down-MEP, ITU-T Y.1731 Up-MEP, ITU-T Y.1731 MIP
    • MEF E-LMI Configuration Management
    • SMAC/DMAC Swap
    • OAM Performance Monitoring MEF35 Phase 1
  • SNMP Management v1, v2c, v3 (RFC 1212, 1901-1908, 3411-3418)
  • SNMP v1 Traps (RFC 1157) with multiple destinations
  • LLDP (IEEE 802.10AB)
  • TIA 1057 LLDP-MED extensions
  • CDP (Cisco Discovery Protocol)
  • RMON Group 1, 2, 3 and 9 (RFC 2819)
  • Syslog (RFC 5424)
  • sFlow (RFC 3176)
  • Port and Flow Mirroring
  • Fallback Firmware
Configuration Management
  • TFTP (RFC 1350)
  • Fallback Configuration
  • Configurable by Web / CLI / Telnet /SSL / Console
Redundancy and Flow Control
  • Static Link Aggregation
  • IEEE 802.3ad Link Aggregation Protocol
  • IEEE 802.3X Back Pressure Flow Control
  • IEEE 802.1D Spanning Tree Protocol (STP)
  • IEEE 802.1w Rapid STP (RSTP)
  • IEEE 802.1s Multiple STP (MSTP)
  • BDPU Guard / Restrict Role
  • ITU-T:G.8032 Ring Protection
  • ITU-T:G.8031 Linear Protection
  • IEEE 802.1ag / ITU-T Y.1731 Connectivity Fault Protection
  • Loop Protection
Security
  • Network Access Server (NAS):
    • Port-based IEEE 802.1x
    • Single and multiple IEEE 802.1x
    • MAC based authentication
    • VLAN and QOS assignment
    • Guest VLAN
  • RADIUS accounting (RFC 2866ff)
  • MAC address limit and MAC freeze
  • IP MAC Binding / Binfind dynamic to static
  • TACACS+ Accounting
  • Web and CLI Authentication
  • IP Source guard
  • Authorization (15 user levels)
  • DHCP Snooping (RFC 2132)
  • Dynamic ARP Inspection
VLAN
  • VLAN Tagging and Trunking (IEEE 802.1Q)
  • Supported VLAN Types:
    • Private Static VLAN (RFC 5517)
    • MAC, Protocol, IP-Subnet and Port based VLAN (IEEE 802.1Q)
    • VOICE VLAN (IEEE 802.1Q, IEEE 802.1P)
  • Dynamic VLANs (GVRP)
  • Multicast VLAN Registration (IEE 802.1ak MRP and MVRP)
Multicast
  • IPv4 Internet Group Management protocol (IGMP) v1, v2, v3
  • Maximum number of IGMP Groups:
    • 8000 for Layer2
    • 8000 for IP4/IP6
  • IPv6 Multicast Listener Protocol (MLD) v1, v2
  • Multicast VLAN registration protocol (MVR)
  • MRP/GMRP Multicast Registration Protocol (IEEE 802.1ak)
QoS
  • Active Priority Queues per Port: 8
  • Class of Service (IEEE 802.1p)
  • Port and queue egress shaper
  • Storm control (for Unicast, Broadcast, Multicast, unknown)
  • Port and Queue Egress shaper
  • Scheduler Mode (weighted and fair scheduling)
  • Port Default/User Priority and Input Priority Mapping
  • DCSP remarking (RFC 2474)
  • QoS control list (QCL mode))
  • Random Early Detection (RED, RFC 2309)
  • Policers (port, service, queue and global/VCAP - ACL)
  • DiffServ (RFC 2474) and Tag remarking
Synchronization
  • NTPv4 Client (RFC 5005)
  • IEEE 1588v2 PTP with one-step and two-step clock
  • IEEE 1588v2 PTP with redundant master clocks
  • IEEE 1588v2 boundary clock
  • IEEE 1588v2 unicast and multicast support
Power Over Ethernet Features
  • Power over Ethernet functions on all ports
    • PSE (Power Sourcing Equipment) function
    • Up to 60 W total output power
  • Derating
    • > 55°C: 0.9W/K
Service Interface
  • Console interface
    • RS232 rear console port for local system management
  • Web interface
    • Web based control and management interface over any Ethernet port
Front Interfaces
  • Ethernet
    • Eight M12 connectors
  • Ethernet LED
  • Power supply
    • One M12 connector for ultra wide range power
  • Power status LED
    • Indicates power supply stability or range validity
Rear Interfaces
RS232
  • One M12 service console
Electrical Specifications
  • Supply voltage
    • 14.4 VDC to 154 VDC
    • Nominal voltages 24, 36, 48, 72, 96 and 110V VDC, according to EN50155
    • Power interruption class S2 (10 ms)
    • 18 VDC to 32 VDC
  • Power consumption
    • +85 W Max. with 60W PoE Max.
Mechanical Specifications
  • Dimensions: Height 44.1 mm x Width 220 mm x Length 164 mm
  • Weight
    • 10/100BASE-T managed switch: 1400 g
    • 10/100/1000BASE-T managed switch: 1500 g
Environmental Specifications
  • IP protection
    • IP40 when surface-mounted
  • Temperature range (operation)
    • -40°C to 70°C (screened), with up to 85°C for 10 minutes according to class Tx (EN 50155)
    • Fanless operation
  • Temperature range (storage): -40°C to +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 to 150 Hz (EN 61373)
  • Vibration (lifetime): 7.9 m/s², 5 Hz to 150 Hz (EN 61373)
  • Conformal coating of internal components
Reliability
MTBF: 511 624 h @ 40°C according to IEC/TR 62380 (RDF 2000)
Safety
  • Flammability (PCBs)
    • UL 94 V-0
  • Fire Protection
    • EN 45545-2
  • Electrical Safety
    • EN 50153:2014 / EN 50155:2007
EMC Conformity (Railway)
EN 50121-3-2:2015
Software Support
Firmware for configuration and management included

Ordering Information

Standard NM31 Models
09NM31-01

Managed 8-port 10/100 MBit Ethernet switch, PoE+ PSE (60W max), 14.4 to 154 V DC, EN 50155 class Tx compliant, -40 to +70(85)°C with qualified components, conformal coating

09NM31-03

Managed 8-port 10/100/1000 MBit Ethernet switch with A-Coded M12 connectors, PoE+ PSE (60W max), 14.4 to 154 VDC, EN 50155 class Tx compliant, -40 to +70(85)°C with qualified components, conformal coating

09NM31-05

Managed 8-port 10/100/1000 MBit Ethernet switch with X-Coded M12 connectors, PoE+ PSE (60W max), 14.4 to 154 VDC, EN 50155 class Tx compliant, -40 to +70(85)°C with qualified components, conformal coating

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