MEN Mikro Elektronik Mikro NM31 User manual

Brand: MEN Mikro Elektronik

Model: Mikro NM31

Category: Network switches

Type: User manual

User Manual



NM31

Fully Managed 8-Port Rugged Ethernet Switch with PoE

IP40 Industrial Stand-Alone Device

2017-01-1120NM31-01 E2

20NM31-01 E2 

2017-01-11 Page 2

Contents

Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

About this Document . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Product Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Legal Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1 Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1.1 Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1.2 External Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

1.3 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

1.4 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

1.5 Product Identification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

2 Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.1 Unpacking the NM31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

2.2 Scope of Delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

2.3 Mounting the NM31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

2.3.1 Safety Instructions for Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

2.3.2 Wall-Mounting the NM31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2.3.3 Horizontal Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

2.3.4 Connecting and Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

2.3.5 Safety Instructions for Connection . . . . . . . . . . . . . . . . . . . . . . . . . .23

2.3.6 Connecting an Earthing Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

2.3.7 Starting Up the System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

2.4 Accessing the Ethernet Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

2.4.1 Web Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

2.4.2 Command Line Interface (CLI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

2.5 Starting Up the Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

2.5.1 Login and Reset Configuration to Factory Defaults . . . . . . . . . . . .28

2.5.2 Setting the Device Hostname . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

2.5.3 Setting a Password for the Admin User . . . . . . . . . . . . . . . . . . . . . .29

2.5.4 Setting the VLAN 1 IP Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

2.5.5 Displaying and Saving the Configuration . . . . . . . . . . . . . . . . . . . . .30

3 Functional Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

3.1 Power Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33

3.1.1 Onboard Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

3.1.2 Power Status LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33

3.2 Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

3.2.1 Fast Ethernet D-Coded . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34

3.2.2 Gigabit Ethernet A-Coded . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35

3.2.3 Gigabit Ethernet X-Coded . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

3.2.4 Ethernet Status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37

3.2.5 Ethernet Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37

3.2.6 Power over Ethernet (PoE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

3.3 RS232 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

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Contents

Figures

Figure 1. Front interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Figure 2. Rear interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Figure 3. Block diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Figure 4. Product label. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

Figure 5. NM31 dimension diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Figure 6. Mounting the NM31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

Figure 7. Mounting the NM31 overhead. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

Figure 8. Accessing the help option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Figure 9. Command line interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

Figure 10. Position of Ethernet status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Tables

Table 1. Connector types – power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33

Table 2. Pin assignment – power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Table 3. Signal mnemonics – power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Table 4. Power status LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Table 5. Connector types – M12 D-Coded. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34

Table 6. Pin assignment – Ethernet (4-pin M12). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34

Table 7. Signal mnemonics – Ethernet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34

Table 8. Connector types – Ethernet M12 A-coded . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35

Table 9. Pin assignment – Ethernet (8-pin M12). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35

Table 10. Signal mnemonics – Ethernet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35

Table 11. Connector types – Ethernet M12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36

Table 12. Pin assignment – Ethernet (8-pin M12). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36

Table 13. Signal mnemonics – Ethernet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36

Table 14. Ethernet status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37

Table 15. Default switch configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Table 16. Power over Ethernet classes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37

Table 17. PoE specific pin assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Table 18. Connector types – RS232 M12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38

Table 19. Pin assignment – RS232 M12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38

Table 20. Signal mnemonics – RS232 M12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

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About this Document

This user manual is intended only for system developers and integrators, it is not

intended for end users.

It describes the design, functions and connection of the product. The manual does not

include detailed information on individual components (data sheets etc.).

History

NM31 product page with up-to-date information and downloads:

www.men.de/products/nm31/

Issue Comments Date

E1 First issue 2016-07-04

E2 General Update 2017-01-11

20NM31-01 E2 

2017-01-11 Page 5

About this Document

Conventions

Indicates important information or warnings concerning situations which

could result in personal injury, or damage or destruction of the

component.

Indicates important information concerning electrostatic discharge which

could result in damage or destruction of the component.

Indicates important information or warnings concerning proper

functionality of the product described in this document.

The globe icon indicates a hyperlink that links directly to the Internet.

When no globe icon is present, the hyperlink links to specific information

within this document.

Italics Folder, file and function names are printed in italics.

Mono A monospaced font type is used for hexadecimal numbers, listings, C

function descriptions or wherever appropriate. Hexadecimal numbers are

preceded by "0x".

Comment Comments embedded into coding examples are shown in green text.

IRQ#

/IRQ

Signal names followed by a hashtag "#" or preceded by a forward slash "/"

indicate that this signal is either active low or that it becomes active at a

falling edge.

In/Out Signal directions in signal mnemonics tables generally refer to the

corresponding board or component, "in" meaning "to the board or

component", "out" meaning "from the board or component".

20NM31-01 E2 

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Product Safety

Electrostatic Discharge (ESD)

Computer boards and components contain electrostatic sensitive devices.

Electrostatic discharge (ESD) can damage components. To protect the PCB

and other components against damage from static electricity, you should

follow some precautions whenever you work on your computer.

Power down and unplug your computer system when working on the

inside.

Hold components by the edges and try not to touch the IC chips, leads,

or circuitry.

Use a grounded wrist strap before handling computer components.

Place components on a grounded antistatic pad or on the bag that came

with the component whenever the components are separated from the

system.

Only store the product in its original ESD-protected packaging. Retain

the original packaging in case you need to return the product to MEN for

repair.

20NM31-01 E2 

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Legal Information

Changes

MEN Mikro Elektronik GmbH ("MEN") reserves the right to make changes without further

notice to any products herein.

Warranty, Guarantee, Liability

MEN makes no warranty, representation or guarantee of any kind regarding the

suitability of its products for any particular purpose, nor does MEN assume any liability

arising out of the application or use of any product or circuit, and specifically disclaims

any and all liability, including, without limitation, consequential or incidental damages.

TO THE EXTENT APPLICABLE, SPECIFICALLY EXCLUDED ARE ANY IMPLIED WARRANTIES

ARISING BY OPERATION OF LAW, CUSTOM OR USAGE, INCLUDING WITHOUT LIMITATION,

THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

PURPOSE OR USE. In no event shall MEN be liable for more than the contract price for

the products in question. If buyer does not notify MEN in writing within the foregoing

warranty period, MEN shall have no liability or obligation to buyer hereunder.

The publication is provided on the terms and understanding that:

1. MEN is not responsible for the results of any actions taken on the basis of

information in the publication, nor for any error in or omission from the publication; and

2. MEN is not engaged in rendering technical or other advice or services.

MEN expressly disclaims all and any liability and responsibility to any person, whether a

reader of the publication or not, in respect of anything, and of the consequences of

anything, done or omitted to be done by any such person in reliance, whether wholly or

partially, on the whole or any part of the contents of the publication.

Conditions for Use, Field of Application

The correct function of MEN products in mission-critical and life-critical applications is

limited to the environmental specification given for each product in the technical user

manual. The correct function of MEN products under extended environmental

conditions is limited to the individual requirement specification and subsequent

validation documents for each product for the applicable use case and has to be agreed

upon in writing by MEN and the customer. Should the customer purchase or use MEN

products for any unintended or unauthorized application, the customer shall indemnify

and hold MEN and its officers, employees, subsidiaries, affiliates, and distributors

harmless against all claims, costs, damages, and expenses, and reasonable attorney fees

arising out of, directly or indirectly, any claim or personal injury or death associated with

such unintended or unauthorized use, even if such claim alleges that MEN was negligent

regarding the design or manufacture of the part. In no case is MEN liable for the correct

function of the technical installation where MEN products are a part of.

Qualified Personnel

The product/system described in this documentation may be operated only by

personnel qualified for the specific task in accordance with the relevant documentation,

in particular its warning notices and safety instructions. Qualified personnel are those

who, based on their training and experience, are capable of identifying risks and

avoiding potential hazards when working with these products/systems.

20NM31-01 E2 

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Legal Information

Conformity

MEN products are no ready-made products for end users. They are tested according to

the standards given in the Technical Data and thus enable you to achieve certification of

the product according to the standards applicable in your field of application.

RoHS

Since July 1, 2006 all MEN standard products comply with RoHS legislation.

Since January 2005 the SMD and manual soldering processes at MEN have already been

completely lead-free. Between June 2004 and June 30, 2006 MEN’s selected component

suppliers have changed delivery to RoHS-compliant parts. During this period any change

and status was traceable through the MEN ERP system and the boards gradually became

RoHS-compliant.

WEEE Application

Nevertheless, MEN is registered as a manufacturer in Germany. The registration number

can be provided on request.

The WEEE directive does not apply to fixed industrial plants and tools. The

compliance is the responsibility of the company which puts the product

on the market, as defined in the directive; components and sub-

assemblies are not subject to product compliance.

In other words: Since MEN does not deliver ready-made products to end

users, the WEEE directive is not applicable for MEN. Users are

nevertheless recommended to properly recycle all electronic boards

which have passed their life cycle.

Germany

MEN Mikro Elektronik GmbH

Neuwieder Straße 3-7

90411 Nuremberg

Phone +49-911-99 33 5-0

France

MEN Mikro Elektronik SAS

18, rue René Cassin

ZA de la Châtelaine

74240 Gaillard

Phone +33-450-955-312

USA

MEN Micro Inc.

860 Penllyn Blue Bell Pike

Blue Bell, PA 19422

Phone 215-542-9575

China

MEN Mikro Elektronik

(Shanghai) Co., Ltd.

Room 808-809, Jiaxing

Mansion, No. 877 Dongfang

Road

200122 Shanghai

Phone +86-21-5058-0961

[email protected]

www.men.de

[email protected]

www.men-france.fr

sales@menmicro.com

www.menmicro.com

sales@men-china.cn

www.men-china.cn

Product Overview

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1 Product Overview

1.1 Product Description

Maintenance Free and Extremely Rugged

The NM31 family is a range of 8-port fanless and maintenance-free managed Ethernet

switches, developed specifically for rough environmental conditions in rolling stock

applications.

High Speed, High Efficiency and Extensive Protocols

The NM31 range of managed switches provide the additional ability to configure,

manage and monitor the LAN which allows more control over how data travels through

the network and who has access. The use of the identical firmware as provided for the

G101 Ethernet Switch, simplifies complex administration and reduces efforts for

administrator training.

Versatile Application Possibilities

The NM31 range provide eight channels at the front panel, accessible through M12

connectors and cover different application requirements including with or without PoE+,

IEEE802.3at type 1 and type 2 (previously af and at) compliant, and either 100 Mb or 1Gb

Ethernet interfaces.

Compliant to Railway and Automotive Standards

The voltage supply for the NM31 Managed Ethernet Switch is designed for maximum

flexibility and supports wide range input supply voltages from 14.4 to 154 V DC, and

meets all EN50155 class S2 requirements for voltages ranging 24 to 110 VDC.

Conduction Cooled

The NM31 is designed for fanless operation at temperatures ranging from -40 to +70°C.

The NM31 features IP40 protection when surface-mounted and cooling fins which serve

as a heatsink for the internal electronics, and in this way provides conduction cooling.

Familiar Family Concept

As a member of MEN's family of extremely rugged industrial box PCs, the NM31

provides the same flexibility and scalability, as well as a look and feel which is common

to the family.

Product Overview

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1.2 External Interfaces

Figure 1. Front interfaces

Figure 2. Rear interfaces

EarthingStud

2Widerangepowersupply(14.4‐154VDC)

3 2 1

3M12Ethernetconnectors

RS232Serviceconsole

Product Overview

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1.3 Block Diagram

Figure 3. Block diagram

10/100BaseT Ethernet

10/100/1000 BaseT Ethernet

10/100BaseT Ethernet

10/100/1000 BaseT Ethernet

10/100BaseT Ethernet

10/100/1000 BaseT Ethernet

10/100BaseT Ethernet

10/100/1000 BaseT Ethernet

10/100BaseT Ethernet

10/100/1000 BaseT Ethernet

10/100BaseT Ethernet

10/100/1000 BaseT Ethernet

10/100BaseT Ethernet

10/100/1000 BaseT Ethernet

10/100BaseT Ethernet

10/100/1000 BaseT Ethernet

FBuffer10ms

+14.4to154VDC

Flash

QuadPoE

Controller

Protection

PoEPowerControl

Max.60WIsolated

RS232ServiceR

FFront RearRB Onboard Options

Vitesse

EthernetSwitch

Product Overview

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1.4 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)

See the MEN website for available standard configurations:

www.men.de/products/nm31/#ord

Product Overview

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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

Product Overview

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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

Product Overview

20NM31-01 E2 

2017-01-11 Page 15

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

Product Overview

20NM31-01 E2 

2017-01-11 Page 16

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

-UL 94V-0

Fire Protection

-EN 45545-1:2013 HL3

Electrical Safety

-EN 50153:2014 / EN 50155:2007

EMC Conformity (Railway)

EN 50121-3-2:2015

Software Support

Firmware for configuration and management included

Product Overview

20NM31-01 E2 

2017-01-11 Page 17

1.5 Product Identification

MEN user documentation may describe several different models and/or design revisions

of the NM31. You can find information on the article number, the design revision and the

serial number on a label affixed to the chassis.

Article number: Indicates the product family and model. This is also MEN’s order-

ing number. To be complete it must have 9 characters.

Revision number: Indicates the design revision of the product.

Serial number: Unique identification assigned during production.

If you need support, you should communicate these numbers to MEN.

Figure 4. Product label

Serial No.:

000010

Article No.:

09NM-0

Rev.: 00.01.00

RevisionnumberSerialnumber

Completearticlenumber

Getting Started

20NM31-01 E2 

2017-01-11 Page 18

2 Getting Started

2.1 Unpacking the NM31

After unpacking, check whether there are any transport or other damages on the

system. If one of the following situations arises, have the equipment checked by service

personnel:

The power cable or plug is damaged.

Liquid has penetrated into the equipment.

The equipment has been exposed to moisture.

The equipment does not work well, or you cannot get it to work according to the

user manual.

The equipment has been dropped and damaged.

The equipment has obvious signs of breakage.

2.2 Scope of Delivery

The delivery includes the following accessories:

NM31 Network Box

2 x M5 Mounting screws

Electric Shock and Fire Hazard Caused by Damaged Device

Damaged equipment may be under dangerous voltage and can cause fire.

Damaged equipment has unpredictable behavior and characteristics.

Prevent damaged equipment from being installed and put into

operation.

Mark the damaged equipment and keep it under lock and key.

Send the equipment to repair immediately.

Damage from Condensation

When the equipment has been subjected to low temperatures or extreme

temperature variations, condensation can form on or inside the system.

Humidity causes short circuits in electric circuits and damages the system.

To avoid damages, do the following:

Store the equipment in a dry environment.

Ensure that the equipment has the same temperature as the

environment before starting it up.

Do not subject the equipment to the direct radiation of a heating device.

Wait until the equipment has dried completely or wait 12 hours before

switching on the equipment.

Please contact MEN should any of these items be missing or damaged.

Getting Started

20NM31-01 E2 

2017-01-11 Page 19

2.3 Mounting the NM31

Before installing the NM31, make sure that the installation site has been prepared and

that the operating environment meets the equipment requirements.

The NM31 network box has been designed to either sit on a flat surface or be securely

mounted to a wall or similar surface.

Figure 5. NM31 dimension diagram

Please check all hardware requirements before mounting the NM31, as

any modifications necessary to the system are difficult, or even

impossible to do after the network box has been mounted.

Please make sure to use the connectors listed in this manual. Other

connectors might cause damage to the device.

Please connect the M12 connectors before mounting the NM31.

Please pay attention to the mounting instructions and product dimensions as

provided in Figure 5, NM31 dimension diagram on page 19 to ensure correct

installation of the network box.

164 mm

220 mm

11.5 mm

0.50 mm

186.3 mm

44.1 mm

3 mm

Getting Started

20NM31-01 E2 

2017-01-11 Page 20

2.3.1 Safety Instructions for Mounting

Risk of Damages or Injuries

Make sure that the cabinet or the wall where you want to install the

system supports the weight of the system.

Do not put the system on top of other equipment. When the system

drops it can cause damages and injuries.

Risk of Fire Through Overheating

Make sure that the equipment does not overheat. Overheating can cause

fire or malfunction of the device. Conformity to standards expires.

Mount the equipment only in the mounting position described in this

document and adhere to the environmental conditions specified in the

Technical Data.

Leave enough space above and below the system to enable the

required airflow (at least 15 cm).

Do not cover openings which are required for the airflow.

Do not install the system near any heat sources (e.g., radiators, heat

registers).

Risk of Damage to the System

Keep the system away from liquids. Avoid exposure to dripping or

splashing.

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MEN Mikro Elektronik Mikro NM31 User manual

Brand: MEN Mikro Elektronik

Model: Mikro NM31

Category: Network switches

Type: User manual

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MEN Mikro Elektronik Mikro NM31 User manual

MEN Mikro Elektronik Mikro NM31 User manual

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