Siemens SIMATIC NET RUGGEDCOM RS920W Technical Document

Edition 11/2023
Equipment Manual
SIMATIC NET
Rugged Ethernet switches
RUGGEDCOM RS920W
https://www.siemens.com/ruggedcom

SIMATIC NET
Rugged Ethernet switches
RUGGEDCOM RS920W
Equipment Manual
Preface
Introduction 1
Installing the Device 2
Device Management 3
Communication Ports 4
Technical Specifications 5
Certification 6
11/2023
C79000-G8976-1033-12

Legal information
Warning notice system
This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent
damage to property. The notices referring to your personal safety are highlighted in the manual by a safety
alert symbol, notices referring only to property damage have no safety alert symbol. These notices shown
below are graded according to the degree of danger.
DANGER
indicates that death or severe personal injury will result if proper precautions are not taken.
WARNING
indicates that death or severe personal injury may result if proper precautions are not taken.
CAUTION
indicates that minor personal injury can result if proper precautions are not taken.
NOTICE
indicates that property damage can result if proper precautions are not taken.
If more than one degree of danger is present, the warning notice representing the highest degree of danger
will be used. A notice warning of injury to persons with a safety alert symbol may also include a warning
relating to property damage.
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.
Proper use of Siemens products
Note the following:
WARNING
Siemens products may only be used for the applications described in the catalog and in the relevant
technical documentation. If products and components from other manufacturers are used, these must be
recommended or approved by Siemens. Proper transport, storage, installation, assembly, commissioning,
operation and maintenance are required to ensure that the products operate safely and without any
problems. The permissible ambient conditions must be complied with. The information in the relevant
documentation must be observed.
Trademarks
All names identified by ® are registered trademarks of Siemens Canada Ltd.. The remaining trademarks in this
publication may be trademarks whose use by third parties for their own purposes could violate the rights of
the owner.
Disclaimer of liability
We have reviewed the contents of this publication to ensure consistency with the hardware and software
described. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the
information in this publication is reviewed regularly and any necessary corrections are included in subsequent
editions.
Digital Industries
Process Automation
300 Applewood Crescent
Concord, Ontario, L4K 4E5
Canada
C79000-G8976-1033-12
© 11/2023 Subject to change
Copyright © Siemens Canada Ltd. 2023
All rights reserved

Table of contents
Preface ............................................................................................................................................ v
Cybersecurity information ....................................................................................................... v
Accessing documentation ........................................................................................................ v
Supplementary documentation ............................................................................................... vi
SIMATIC NET glossary ............................................................................................................. vi
Registered trademarks ............................................................................................................ vi
Warranty ................................................................................................................................ vii
Training ................................................................................................................................. vii
Customer support ................................................................................................................. viii
Contacting Siemens .............................................................................................................. viii
1 Introduction ........................................................................................................................... 1
1.1 Feature Highlights ................................................................................................. 2
1.2 Description ............................................................................................................ 2
1.3 Required Tools and Materials ................................................................................. 4
1.4 Decommissioning and disposal .............................................................................. 4
1.5 Cabling Recommendations .................................................................................... 5
2 Installing the Device ............................................................................................................. 7
2.1 General Procedure ................................................................................................. 8
2.2 Unpacking the device ............................................................................................ 8
2.3 Mounting the Device ............................................................................................. 9
2.3.1 Mounting the Device on a DIN Rail ........................................................................ 9
2.3.2 Mounting the Device to a Panel .......................................................................... 11
2.4 Connecting the Failsafe Alarm Relay .................................................................... 12
2.5 Connecting Power ............................................................................................... 13
2.5.1 Connecting High AC/DC Power ............................................................................ 14
2.5.2 Connecting Low DC Power .................................................................................. 15
3 Device Management ........................................................................................................... 19
3.1 Connecting to the Device .................................................................................... 19
3.2 Configuring the Device ........................................................................................ 20
4 Communication Ports .......................................................................................................... 21
4.1 Wireless Ethernet Ports ........................................................................................ 21
4.1.1 Supported Wireless Standards ............................................................................. 22
4.1.2 Radio Characteristics ........................................................................................... 22
4.1.3 Channel Allocations for IEEE 802.11b/g ............................................................... 22
4.2 EoVDSL Ports ....................................................................................................... 23
4.3 Serial Ports .......................................................................................................... 25
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Table of contents
5 Technical Specifications ...................................................................................................... 27
5.1 General specifications ......................................................................................... 27
5.2 Power Supply Specifications ................................................................................ 27
5.3 Failsafe Alarm Relay Specifications ...................................................................... 27
5.4 Supported Networking Standards ........................................................................ 28
5.5 Serial Port Specifications ..................................................................................... 28
5.6 Operating Environment ....................................................................................... 28
5.7 Mechanical Specifications .................................................................................... 29
5.8 Dimension Drawings ........................................................................................... 29
6 Certification ......................................................................................................................... 31
6.1 Approvals ............................................................................................................ 31
6.1.1 CSA ..................................................................................................................... 31
6.1.2 European Union (EU) .......................................................................................... 32
6.1.3 FCC ..................................................................................................................... 32
6.1.4 FDA/CDRH ........................................................................................................... 32
6.1.5 ISED .................................................................................................................... 33
6.1.6 TÜV SÜD ............................................................................................................. 33
6.1.7 ISO ...................................................................................................................... 33
6.1.8 RoHS ................................................................................................................... 33
6.1.9 Other Approvals .................................................................................................. 34
6.2 EMC and Environmental Type Tests ..................................................................... 34
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Preface
This guide describes the RUGGEDCOM RS920W. It describes the major features of the
device, installation, commissioning and important technical specifications.
It is intended for use by network technical support personnel who are responsible
for the installation, commissioning and maintenance of the device. It is also
recommended for use by network and system planners, system programmers, and
line technicians.
Note
Illustrations are intended for demonstration purposes only.
Cybersecurity information
Siemens provides products and solutions with industrial cybersecurity functions that
support the secure operation of plants, systems, machines and networks.
In order to protect plants, systems, machines and networks against cyber threats,
it is necessary to implement – and continuously maintain – a holistic, state-of-the-
art industrial cybersecurity concept. Siemens' products and solutions constitute one
element of such a concept.
Customers are responsible for preventing unauthorized access to their plants,
systems, machines and networks. Such systems, machines and components should
only be connected to an enterprise network or the internet if and to the extent
such a connection is necessary and only when appropriate security measures (e.g.
firewalls and/or network segmentation) are in place.
For additional information on industrial cybersecurity measures that may be
implemented, please visit https://www.siemens.com/cybersecurity-industry.
Siemens' products and solutions undergo continuous development to make them
more secure. Siemens strongly recommends that product updates are applied as
soon as they are available and that the latest product versions are used. Use of
product versions that are no longer supported, and failure to apply the latest updates
may increase customer's exposure to cyber threats.
To stay informed about product updates, subscribe to the Siemens Industrial
Cybersecurity RSS Feed under https://www.siemens.com/cert.
Accessing documentation
The latest user documentation for RUGGEDCOM RS920W is available online at https://
support.industry.siemens.com. To request or inquire about a user document, contact
Siemens Customer Support.
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Preface
Supplementary documentation
Supplementary documentation
Documentation related to RUGGEDCOM RS920W is available on the Siemens Industry
Online Support website at https://support.industry.siemens.com/cs/ww/en/ps/15906.
For specific documents, search the following:
•Product notes
https://support.industry.siemens.com/cs/ww/en/ps/15906/pm
•Manuals
https://support.industry.siemens.com/cs/ww/en/ps/15906/man
•FAQs
https://support.industry.siemens.com/cs/ww/en/ps/15906/faq
•Application examples
https://support.industry.siemens.com/cs/ww/en/ps/15906/ae
•Catalogs/brochures
https://support.industry.siemens.com/cs/ww/en/ps/15906/cat
•Certificates
https://support.industry.siemens.com/cs/ww/en/ps/15906/cert
•Downloads
https://support.industry.siemens.com/cs/ww/en/ps/15906/dl
Other documents that may be of interest include:
•SINEC NMS Operating Instructions
https://support.industry.siemens.com/cs/ww/en/ps/25518/man
•SINEC PNI Operating Instructions
https://support.industry.siemens.com/cs/ww/en/ps/26672
SIMATIC NET glossary
The SIMATIC NET glossary describes special terms that may be used in this document.
The glossary is available online via Siemens Industry Online Support (SIOS) at:
https://support.industry.siemens.com/cs/ww/en/view/50305045
Registered trademarks
The following and possibly other names not identified by the registered trademark
sign ® are registered trademarks of Siemens Canada Ltd.:
• RUGGEDCOM
• ROS
• RCDP
• Discovery Protocol
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Preface
Warranty
Other designations in this manual might be trademarks whose use by third parties
for their own purposes would infringe the rights of the owner.
Warranty
Siemens warrants this product for a period of five (5) years from the date of
purchase, conditional upon the return to factory for maintenance during the
warranty term. This product contains no user-serviceable parts. Attempted service by
unauthorized personnel shall render all warranties null and void. The warranties set
forth in this article are exclusive and are in lieu of all other warranties, performance
guarantees and conditions whether written or oral, statutory, express or implied
(including all warranties and conditions of merchantability and fitness for a particular
purpose, and all warranties and conditions arising from course of dealing or usage
or trade). Correction of nonconformities in the manner and for the period of time
provided above shall constitute the Seller’s sole liability and the Customer’s exclusive
remedy for defective or nonconforming goods or services whether claims of the
Customer are based in contract (including fundamental breach), in tort (including
negligence and strict liability) or otherwise.
For warranty details, visit https://www.siemens.com or contact a Siemens customer
service representative.
Training
Siemens offers a wide range of educational services ranging from in-house training
of standard courses on networking, Ethernet switches and routers, to on-site
customized courses tailored to the customer's needs, experience and application.
Siemens' Educational Services team thrives on providing our customers with the
essential practical skills to make sure users have the right knowledge and expertise
to understand the various technologies associated with critical communications
network infrastructure technologies.
Siemens' unique mix of IT/Telecommunications expertise combined with domain
knowledge in the utility, transportation and industrial markets, allows Siemens to
provide training specific to the customer's application.
For more information about training services and course availability, visit https://
www.siemens.com or contact a Siemens Sales representative.
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Preface
Customer support
Customer support
Customer support is available 24 hours, 7 days a week for all Siemens customers.
For technical support or general information, contact Siemens Customer Support
through any of the following methods:
Online
Visit http://www.siemens.com/automation/support-request to submit a Support Request
(SR) or check on the status of an existing SR.
Telephone
Call a local hotline center to submit a Support Request (SR). To locate a local hotline center,
visit https://w3.siemens.com/aspa_app/?lang=en.
Mobile app
Install the Industry Online Support app by Siemens AG on any Android, Apple iOS or
Windows mobile device and be able to:
• Access Siemens' extensive library of support documentation, including FAQs and
manuals
• Submit SRs or check on the status of an existing SR
• Contact a local Siemens representative from Sales, Technical Support, Training, etc.
• Ask questions or share knowledge with fellow Siemens customers and the support
community
Contacting Siemens
Address Siemens Canada Ltd.
Digital Industries
Process Automation
300 Applewood Crescent
Concord, Ontario
Canada, L4K 5C7
Telephone Toll-free: 1 888 264 0006
Tel: [phone]
Fax: [phone]
E-Mail [email protected]
Web https://www.siemens.com
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Introduction 1
The RUGGEDCOM RS920W is a utility-grade serial device server that combines an
IEEE 802.11b/g Local Area Network (LAN) with wired serial ports. It allows network
designers to connect any RS232/422/485 serial device at up to 230 kbps for wireless
access and control via an IEEE 802.11i WLAN. The RUGGEDCOM RS920W eliminates
costly wiring and simplifies network installation.
The RUGGEDCOM RS920W can also act as a wireless access point and can – in
combination with an Ethernet over VDSL (EoVDSL) interface – aggregate many
devices at a remote location back to the central control room using existing
telephone grade cable (or other legacy serial cabling) at distances of up to 5 km (3
mi) at up to 35 Mbps (upstream and downstream).
The RUGGEDCOM RS920W functions as a wireless client/bridge within an IEEE
802.11b/g compliant WLAN. This allows the RUGGEDCOM RS920W to transfer data
for connected serial port and Ethernet devices via an installed Wireless Access Point.
The RUGGEDCOM RS920W is capable of wireless data rates of up to 54 Mbps whose
bandwidth is available for the combined device traffic volume emanating from two
serial ports and two Ethernet ports.
Static authentication support is provided by WPA-PSK. For authentication by an
access point and a RADIUS server, the RUGGEDCOM RS920W supports IEEE 802.1X/
RADIUS for wireless user traffic and distributing dynamic encryption keys. All wireless
communications are protected by modern network security features, including
strong encryption protocols using WPA with TKIP and even WPA2/802.11i with
128-bit AES encryption. Static authentication support is provided by WPA-PSK. For
additional centralized control, the RUGGEDCOM RS920W also supports IEEE 802.1X/
RADIUS for wireless user traffic and distributing dynamic encryption keys.
The RUGGEDCOM RS920W provides a high level of immunity to electromagnetic
interference and heavy electrical surges typical of environments found on plant
floors and curb-side traffic control cabinets. An operating temperature range of -40
to 85 °C (-40 to 185 °F), optional conformal coating, and a galvanized steel enclosure
allows the RUGGEDCOM RS920W to be placed in almost any location.
The RUGGEDCOM RS920W can be mounted on a DIN rail or panel for efficient use of
cabinet space.
The integrated power supply supports a wide range of voltages (88-300 VDC or
85-264 VAC) for worldwide operability.
The RUGGEDCOM RS920W's superior ruggedized design and embedded RUGGEDCOM
Rugged Operating System (ROS) provides superior system reliability and advanced
networking features making it ideally suited for creating Ethernet networks for
mission-critical, real-time, control applications.
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Introduction
1.1Feature Highlights
1.1 Feature Highlights
Serial Interface
• 2 x RS485/RS422/RS232 Serial Ports (DB9 or RJ45)
• [Optional] Serial Fiber Interface (ST)
Ethernet Over VDSL (EoVDSL)
• 1 x Ethernet over VDSL (EoVDSL) ports
• Symmetric data rates up to 35 Mbps
• Asymmetric data rates up to 40 Mbps
• Automatically selects fastest data rate based on distance and quality of cable
• Software selectable to be master or slave
• Frequency Division Multiplexing (FDM)
Rated for Reliability in Harsh Environments
• Immunity to EMI and heavy electrical surges
• -40 to 85 °C (-40 to 185 °F) ambient operating temperature (no fans)
• 20 AWG Galvanized Steel
• DIN or panel mounting options provide secure mechanical reliability
• [Optional] Conformal coated printed circuit boards
Power Supply
• Fully integrated power supply
• Universal high-voltage range: 88-300 VDC or 85-264 VAC
• Terminal blocks for reliable maintenance free connections
• CSA/UL 62368-1 safety approved to 85 °C (185 °F)
1.2 Description
The RUGGEDCOM RS920W features various ports, controls and indicator LEDs on the
front panel for connecting, configuring and troubleshooting the device.
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Introduction
1.2Description
6
1
2
3
4
7
5
4
8
9
1 POWER LED
2 ALARM LED
3 EoVDSL Port
4 Wireless Ethernet Ports
5 Serial Ports
6 RS232 Console Port (Serial)
7 Failsafe Alarm Relay
8 Chassis Ground Connection
9 Power Supply Terminal Block
Figure1.1 RUGGEDCOM RS920W
POWER LED Illuminates green during boot up and when power is supplied to the
device.
ALARM LED Illuminates red when an alarm condition exists.
Console Port The serial console port is for interfacing directly with the device
and accessing initial management functions. For information
about connecting to the device via the serial console port, refer to
"Connecting to the Device" (Page 19).
Communication Ports Communication ports in general receive and transmit data, as
well as provide access to the RUGGEDCOM ROS Web interface.
For more information about the various ports available, refer to
"Communication Ports" (Page 21).
Failsafe Alarm Relay Latches to default state when a power disruption or other alarm
condition occurs. For more information, refer to:
• "Connecting the Failsafe Alarm Relay" (Page 12)
• "Failsafe Alarm Relay Specifications" (Page 27)
Power Supply Terminal Blocks Pluggable terminal blocks for connecting one or
more power sources. For more information, refer to
"Connecting Power" (Page 13) and "Power Supply
Specifications" (Page 27).
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Introduction
1.3Required Tools and Materials
1.3 Required Tools and Materials
The following tools and materials are required to install the RUGGEDCOM RS920W:
Tools/Materials Purpose
AC power cord (16 AWG) For connecting power to the device.
CAT-5 Ethernet cables For connecting the device to a LAN.
Flathead screwdriver For mounting the device to a DIN rail.
Phillips screwdriver For mounting the device to a panel.
4 x #6-32 screws For mounting the device to a panel.
1.4 Decommissioning and disposal
Proper decommissioning and disposal of this device is important to prevent malicious
users from obtaining proprietary information and to protect the environment.
Decommissioning
This device may include sensitive, proprietary data. Before taking the device out of
service, either permanently or for maintenance by a third-party, make sure it has
been fully decommissioned.
For more information, refer to the associated "RUGGEDCOM ROS Configuration
Manual".
Recycling and disposal
This device is low in pollutants, can be recycled, and meets the requirements of the
WEEE directive 2012/19/EU for the disposal of electrical and electronic equipment.
Do not dispose of devices at public disposal sites.
For environmentally friendly recycling and the disposal of devices, contact a certified
disposal company for electronic scrap or your Siemens contact.
For more information, refer to https://support.industry.siemens.com/cs/ww/en/
view/109479891.
Note the different national regulations.
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Introduction
1.5Cabling Recommendations
1.5 Cabling Recommendations
All copper Ethernet ports on RUGGEDCOM products include transient suppression
circuitry to protect against damage from electrical transients and conform with
IEC 61850-3 and IEEE 1613 Class I standards. This means that during a transient
electrical event, communications errors or interruptions may occur, but recovery is
automatic.
Siemens also does not recommend using copper Ethernet ports to interface with
devices in the field across distances that could produce high levels of ground
potential rise (i.e. greater than 2500 V), during line-to-ground fault conditions.
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Introduction
1.5Cabling Recommendations
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Installing the Device 2
This chapter describes how to install the device, including mounting the device,
connecting power, and connecting the device to the network.
DANGER
Electrocution hazard – risk of serious personal injury and/or damage to
equipment
Before performing any maintenance tasks, make sure all power to the device has
been disconnected and wait approximately two minutes for any remaining energy
to dissipate.
WARNING
Radiation hazard – risk of serious personal injury
This product contains a laser system and is classified as a Class I LASER PRODUCT.
Use of controls or adjustments or performance of procedures other than those
specified herein may result in hazardous radiation exposure.
WARNING
Fire/electrical/burn hazard – risk of serious personal injury and/or damage to
the device
Do not use any parts that show evidence of damage. If damaged parts are used, the
device may not function according to the specification. Damaged parts can lead to:
• Injury to personnel
• Loss of certification/approvals
• Violation of EMC regulations
• Damage to the device or other components
CAUTION
Burn hazard – risk of personal injury
The surface of the device may be hot during operation, or as a result of the ambient
air temperature.
Wear appropriate personal protective equipment and use caution when working
with or around the device.
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Installing the Device
2.1General Procedure
NOTICE
This product contains no user-serviceable parts. Attempted service by unauthorized
personnel shall render all warranties null and void.
Changes or modifications not expressly approved by Siemens Canada Ltd. could
invalidate specifications, test results, and agency approvals, and void the user's
authority to operate the equipment.
NOTICE
This product should be installed in a restricted access location where access can only
be gained by authorized personnel who have been informed of the restrictions and
any precautions that must be taken. Access must only be possible through the use
of a tool, lock and key, or other means of security, and controlled by the authority
responsible for the location.
2.1 General Procedure
The general procedure for installing the device is as follows:
Note
The user is responsible for the operating environment of the device, including
maintaining the integrity of all protective conductor connections and checking
equipment ratings. Make sure to review all operating and installation instructions
before commissioning or performing maintenance on the device.
1. Review the relevant certification information for any regulatory requirements.
For more information, refer to "Approvals" (Page 31).
2. Mount the device.
3. Connect the failsafe alarm relay.
4. Connect power to the device and ground the device to safety Earth.
5. Connect the device to the network.
6. Configure the device.
2.2 Unpacking the device
When unpacking the device, do the following:
1. Inspect the package for damage before opening it.
2. Visually inspect each item in the package for any physical damage.
3. Verify all items are included.
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Installing the Device
2.3Mounting the Device
Note
If any item is missing or damaged, contact Siemens for assistance.
2.3 Mounting the Device
The RUGGEDCOM RS920W is designed for maximum mounting and display flexibility.
It can be equipped with adapters that allow it to be attached to a DIN rail or panel.
Note
Heat generated by the device is channeled outwards from the enclosure. As such, it
is recommended that 2.5 cm (1 in) of space be maintained on all open sides of the
device to allow for some convectional airflow.
Forced airflow is not required. However, any increase in airflow will result in a
reduction of ambient temperature and improve the long-term reliability of all
equipment mounted in the rack space.
Note
For detailed dimensions of the device with either DIN rail or panel hardware installed,
refer to "Dimension Drawings" (Page 29).
2.3.1 Mounting the Device on a DIN Rail
The RUGGEDCOM RS920W can be ordered with a DIN rail adapter preinstalled on the
back of the chassis. Use the adapter to mount the device to a standard 35 mm (1.4
in) IEC/EN 60715 or TS35 DIN rail.
Mounting the Device
To mount the device to a DIN rail, do the following:
1. Hook the top teeth of the adapter onto the DIN rail.
Note
The adapter features a sliding release with a slot at the bottom for a flathead
screwdriver.
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Installing the Device
2.3.1Mounting the Device on a DIN Rail
1
2
3
2
1
1
1 DIN Rail
2 DIN Rail Adapter
Figure2.1 Mounting the Device to a DIN Rail
2. Insert a flathead screwdriver into the slot of the sliding release and move it
down.
3. Push the device against the bottom of the DIN rail, then let go of the sliding
release to latch the device.
Removing the Device
To remove the device from a DIN rail, do the following:
1. Insert a flathead screwdriver into the slot of the sliding release and move it
down.
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Installing the Device
2.3.2Mounting the Device to a Panel
1
2
1
1
2
3
1 DIN Rail
2 DIN Rail Adapter
Figure2.2 Removing the Device from a DIN Rail
2. Swing the bottom of the device away from the DIN rail.
3. Lift the device off the DIN rail.
2.3.2 Mounting the Device to a Panel
For panel installations, the RUGGEDCOM RS920W can be equipped with panel
adapters on the top and bottom of the chassis. The adapters allow the device to be
attached to a panel using screws.
To mount the device to a panel, do the following:
1. Prepare mounting holes in the panel where the device is to be installed.
2. Place the device against the panel and align the adapters with the mounting
holes.
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