20NM31-01 E2
2017-01-11 Page 2
Contents
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
20NM31-01 E2
2017-01-11 Page 4
About this Document
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
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
2017-01-11 Page 7
Legal Information
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
2017-01-11 Page 8
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.
Copyright © 2017 MEN Holding. All rights reserved.
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
www.men.de
www.men-france.fr
sales@menmicro.com
www.menmicro.com
sales@men-china.cn
www.men-china.cn
Product Overview
20NM31-01 E2
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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
20NM31-01 E2
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1.3 Block Diagram
Figure 3. Block diagram
10/100BaseT Ethernet
F
10/100/1000 BaseT Ethernet
10/100BaseT Ethernet
F
10/100/1000 BaseT Ethernet
10/100BaseT Ethernet
F
10/100/1000 BaseT Ethernet
10/100BaseT Ethernet
F
10/100/1000 BaseT Ethernet
10/100BaseT Ethernet
F
10/100/1000 BaseT Ethernet
10/100BaseT Ethernet
F
10/100/1000 BaseT Ethernet
10/100BaseT Ethernet
F
10/100/1000 BaseT Ethernet
10/100BaseT Ethernet
F
10/100/1000 BaseT Ethernet
FBuffer10ms
+14.4to154VDC
Flash
QuadPoE
Controller
Protection
16
PoEPowerControl
Max.60WIsolated
RS232ServiceR
FFront RearRB Onboard Options
Vitesse
EthernetSwitch
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
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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
RevisionnumberSerialnumber
Completearticlenumber
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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