Siemens SCALANCE XR-100WG Series User manual

SIMATIC NET
Industrial Ethernet switches
SCALANCE XR-100WG
Operating Instructions
09/2020
C79000-G8976-C455-04
Introduction
Safety notices 1
Description of the device 2
Installation 3
Connecting up 4
Upkeep and maintenance 5
Technical speci󹪝cations 6
Dimension drawings 7
Approvals A

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.
Quali󹪝ed Personnel
The product/system described in this documentation may be operated only by personnel quali󹪝ed for the speci󹪝c
task in accordance with the relevant documentation, in particular its warning notices and safety instructions.
Quali󹪝ed 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 identi󹪝ed by ® are registered trademarks of Siemens AG. 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.
Siemens AG
Digital Industries
Postfach 48 48
90026 NÜRNBERG
GERMANY
C79000-G8976-C455-04
Ⓟ 08/2020 Subject to change
Copyright © Siemens AG 2017 - 2020.
All rights reserved

Introduction
Purpose of the Operating Instructions
These operating instructions support you when installing and connecting up devices of the
SCALANCE XR-100WG product group.
Validity of the Operating Instructions
These operating instructions apply to the following devices:
• SCALANCE XR108-2PoE WG
• SCALANCE XR124WG
Unless mentioned otherwise, the descriptions in these operating instructions refer to all devices
of the SCALANCE XR-100WG product group named above in the section on validity.
Designations used
Classi󹪝cation Description Terms used
Product line The product line includes all devices and variants of all product groups.
If information applies to all product groups within the product line, the term
SCALANCE X-100 is used.
SCALANCE X-100
Product group If information applies to all devices and variants of a product group, the term
SCALANCE XR-100WG is used.
SCALANCE XR-100WG
Device If information relates to a speci󹪝c device, the device name is used. SCALANCE XR124WG
Device group If an item of information applies to all SCALANCE XR-100WG with Power
over Ethernet, the following terms are used.
You can recognize the PoE variants by the su󹪟x "PoE" in the type designa‐
tion.
SCALANCE XR-100PoE WG,
PoE variants
Variant For a variant of the device, the device name has the appropriate variant
added to it in brackets. or the characteristic of the variant.
e.g. SCALANCE XR124WG
(24 VDC) or 24 VDC variant
Additional documentation
In addition, note the Operating Instructions of the pluggable transceivers.
You will 󹪝nd the supplementary documentation here:
• On the data medium that ships with some products:
– Product CD / product DVD
– SIMATIC NET Manual Collection
• On the Internet pages of Siemens Industry Online Support (https://
support.industry.siemens.com/cs/ww/en/ps/15247)
SCALANCE XR-100WG
Operating Instructions, 09/2020, C79000-G8976-C455-04 3

Further documentation
In the system manuals "Industrial Ethernet / PROFINET Industrial Ethernet" and "Industrial
Ethernet / PROFINET passive network components", you will 󹪝nd information on other SIMATIC
NET products that you can operate along with the devices of this product line in an Industrial
Ethernet network.
There, you will 󹪝nd among other things optical performance data of the communications
partner that you require for the installation.
You will 󹪝nd the system manuals here:
• On the data medium that ships with some products:
– Product CD / product DVD
– SIMATIC NET Manual Collection
• On the Internet pages of Siemens Industry Online Support:
– Industrial Ethernet / PROFINET Industrial Ethernet System Manual (https://
support.industry.siemens.com/cs/ww/en/view/27069465)
– Industrial Ethernet / PROFINET Passive Network Components System Manual (https://
support.industry.siemens.com/cs/ww/en/view/84922825)
SIMATIC NET manuals
You will 󹪝nd the SIMATIC NET manuals here:
• On the data medium that ships with some products:
– Product CD / product DVD
– SIMATIC NET Manual Collection
• On the Internet pages of Siemens Industry Online Support (https://
support.industry.siemens.com/cs/ww/en/ps/15247).
SIMATIC NET glossary
Explanations of many of the specialist terms used in this documentation can be found in the
SIMATIC NET glossary.
You will 󹪝nd the SIMATIC NET glossary here:
• SIMATIC NET Manual Collection or product DVD
The DVD ships with certain SIMATIC NET products.
• On the Internet under the following address:
50305045 (https://support.industry.siemens.com/cs/ww/en/view/50305045)
Security information
Siemens provides products and solutions with industrial security functions that support the
secure operation of plants, systems, machines and networks.
Introduction
SCALANCE XR-100WG
4Operating Instructions, 09/2020, C79000-G8976-C455-04

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 security
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. 󹪝rewalls and/or network segmentation) are in place.
For additional information on industrial security measures that may be implemented, please visit
https://www.siemens.com/industrialsecurity (https://www.siemens.com/industrialsecurity)
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 customers’ exposure to cyber
threats.
To stay informed about product updates, subscribe to the Siemens Industrial Security RSS Feed
under
https://www.siemens.com/industrialsecurity (https://www.siemens.com/industrialsecurity)
Catalogs
You will 󹪝nd the article numbers for the Siemens products of relevance here in the following
catalogs:
• SIMATIC NET Industrial Communication / Industrial Identi󹪝cation, catalog IK PI
• SIMATIC Products for Totally Integrated Automation and Micro Automation, catalog ST 70
• Industry Mall - catalog and ordering system for automation and drive technology, Online
catalog (https://mall.industry.siemens.com/goos/WelcomePage.aspx?regionUrl=/
en&language=en)
You can request the catalogs and additional information from your Siemens representative.
Device defective
If a fault develops, send the device to your SIEMENS representative for repair. Repairs on-site are
not possible.
Recycling and disposal
The products are low in pollutants, can be recycled and meet the requirements of the WEEE
directive 2012/19/EU for the disposal of electrical and electronic equipment.
Do not dispose of the products at public disposal sites.
For environmentally friendly recycling and the disposal of your old device contact a certi󹪝ed
disposal company for electronic scrap or your Siemens contact (Product return (https://
support.industry.siemens.com/cs/ww/en/view/109479891)).
Note the di󹪜erent national regulations.
Introduction
SCALANCE XR-100WG
Operating Instructions, 09/2020, C79000-G8976-C455-04 5

Trademarks
The following and possibly other names not identi󹪝ed by the registered trademark sign ® are
registered trademarks of Siemens AG:
SIMATIC NET, SCALANCE, C-PLUG, OLM
Introduction
SCALANCE XR-100WG
6Operating Instructions, 09/2020, C79000-G8976-C455-04

Table of contents
Introduction ........................................................................................................................................... 3
1 Safety notices ........................................................................................................................................ 9
2 Description of the device..................................................................................................................... 11
2.1 Product overview ............................................................................................................... 11
2.2 Device views...................................................................................................................... 12
2.2.1 24 V DC variant.................................................................................................................. 12
2.2.2 240 V AC variant ................................................................................................................ 13
2.2.3 SCALANCE XR108-2PoE WG ............................................................................................... 13
2.3 Accessories........................................................................................................................ 13
2.4 LED display ........................................................................................................................ 16
2.4.1 Fault LED "F" ...................................................................................................................... 16
2.4.2 "OVERLOAD" LED................................................................................................................ 17
2.4.3 LED "L"............................................................................................................................... 17
2.4.4 Port LEDs "P" ...................................................................................................................... 17
2.5 Power over Ethernet .......................................................................................................... 17
2.5.1 Power and voltage range according to the standard............................................................ 18
2.5.2 PoE properties of the devices ............................................................................................. 18
2.5.3 Voltage transmission and pin assignment (ports P1 to P8) .................................................. 19
3 Installation........................................................................................................................................... 21
3.1 Safety notices for installation ............................................................................................. 21
3.2 Types of installation ........................................................................................................... 24
3.3 19" rack mounting ............................................................................................................. 24
3.4 DIN rail mounting / wall mounting ..................................................................................... 26
3.5 Inserting and removing pluggable transceivers................................................................... 29
3.5.1 General notes for SFP transceivers...................................................................................... 29
3.5.2 Using a pluggable transceiver (SFP).................................................................................... 29
3.5.3 Removing a pluggable transceiver (SFP) ............................................................................. 30
4 Connecting up ..................................................................................................................................... 31
4.1 Safety when connecting up................................................................................................ 31
4.2 Industrial Ethernet ............................................................................................................. 33
4.2.1 Electrical............................................................................................................................ 33
4.2.2 Optical............................................................................................................................... 34
4.3 Wiring rules ....................................................................................................................... 35
4.4 24 VDC power supply......................................................................................................... 35
4.5 Power supply 240 VAC ....................................................................................................... 36
4.6 Functional ground ............................................................................................................. 38
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Operating Instructions, 09/2020, C79000-G8976-C455-04 7

5 Upkeep and maintenance.................................................................................................................... 41
6 Technical speci󹪝cations ....................................................................................................................... 43
6.1 Technical speci󹪝cations of SCALANCE XR108-2PoE WG ....................................................... 43
6.2 Technical speci󹪝cations of the SCALANCE XR124WG (24 VDC variant)................................. 44
6.3 Technical speci󹪝cations of the SCALANCE XR124WG (240 VAC variant) ............................... 45
6.4 Cable lengths..................................................................................................................... 46
6.5 Switching properties.......................................................................................................... 46
6.6 Mechanical stability (in operation) ..................................................................................... 47
7 Dimension drawings............................................................................................................................ 49
A Approvals............................................................................................................................................. 51
A.1 FDA and IEC XR-100WG marks............................................................................................ 58
Index .................................................................................................................................................... 61
Table of contents
SCALANCE XR-100WG
8Operating Instructions, 09/2020, C79000-G8976-C455-04

Safety notices 1
Read the safety notices
Note the following safety notices. These relate to the entire working life of the device.
You should also read the safety notices relating to handling in the individual sections,
particularly in the sections "Installation" and "Connecting up".
CAUTION
To prevent injury, read the manual before use.
Safety notices on use in hazardous areas
General safety notices relating to protection against explosion
WARNING
EXPLOSION HAZARD
Do not open the device when the supply voltage is turned on.
Safety notices when using the device according to Hazardous Locations (HazLoc) and FM.
If you use the device under HazLoc or FM conditions you must also keep to the following safety
notices in addition to the general safety notices for protection against explosion:
This equipment is suitable for use in Class I, Division 2, Groups A, B, C and D or non-hazardous
locations only.
This equipment is suitable for use in Class I, Zone 2, Group IIC or non-hazardous locations only.
SCALANCE XR-100WG
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Safety notices
SCALANCE XR-100WG
10 Operating Instructions, 09/2020, C79000-G8976-C455-04

Description of the device 2
2.1 Product overview
Article numbers
Device Properties Article number
SCALANCE
XR108-2PoE WG
• 8 x 10/100/1000 Mbps RJ45 ports
• 2 x plug-in transceiver slots with 1000/10000 Mbps
• 1 x 100 to 240 V AC, power supply connector at rear
• Grounding bolt on the back of the device
• Power over Ethernet at 8 ports
6GK5 108-2QS00-3AR3
SCALANCE
XR124WG
24 VDC Variant
• 24 x 10/100 Mbps RJ-45 ports
• 2 x 24 VDC, connector for the power supply on the front
• Grounding screw on the front of the device
6GK5 124-0BA00-2AR3
240 VAC variante
• 24 x 10/100 Mbps RJ-45 ports
• 1 x 240 VAC, connector for the power supply on the rear
• Grounding screw on the front of the device
6GK5 124-0BA00-3AR3
Components of the product
The following components are supplied with a SCALANCE XR-100WG:
• One device
• Two 2-terminal blocks for the power supply 24 V DC
The following parts are included in the scope of delivery of a SCALANCE XR-100WG with plug-in
transceiver slots:
• 1 cover per pluggable transceiver slot
SCALANCE XR-100WG
Operating Instructions, 09/2020, C79000-G8976-C455-04 11

Unpacking and checking
WARNING
Do not use any parts that show evidence of damage
If you use damaged parts, there is no guarantee that the device will function according to the
speci󹪝cation.
If you use damaged parts, this can lead to the following problems:
• Injury to persons
• Loss of the approvals
• Violation of the EMC regulations
• Damage to the device and other components
Use only undamaged parts.
1. Make sure that the package is complete.
2. Check all the parts for transport damage.
2.2 Device views
2.2.1 24 V DC variant
The following 󹪝gure shows an overview of the components of a 24 VDC variant of a
SCALANCE XR124WG.

①Grounding screw
②Electrical ports with port LEDs
③Integrated brackets for 19" rack mounting
④24 VDC power supply
⑤LED "L for the power supplies
Description of the device
2.2 Device views
SCALANCE XR-100WG
12 Operating Instructions, 09/2020, C79000-G8976-C455-04

2.2.2 240 V AC variant
The following 󹪝gure shows an overview of the components of a 240 VAC variant of a
SCALANCE XR124WG.

①Electrical ports with port LEDs
②Integrated brackets for 19" rack mounting
③240 V AC power supply (rear)
④Grounding screw
⑤LED "L for the power supplies
2.2.3 SCALANCE XR108-2PoE WG
The following 󹪝gure shows an overview of the components of a 240 V AC variant of a
SCALANCE XR108-2PoE WG.

①Electrical ports with port LEDs
②Pluggable transceiver slots
③Integrated brackets for 19" rack mounting
④240 V AC power supply (rear)
⑤Grounding bolts (rear)
⑥LED display
• The "F" LED for faults
• LED "OVERLOAD" for PoE use
• LED "L for the power supplies
2.3 Accessories
The following accessories are available for SCALANCE XR-100WG:
Description of the device
2.3 Accessories
SCALANCE XR-100WG
Operating Instructions, 09/2020, C79000-G8976-C455-04 13

Power cable
Type Description Article number
Power cable
100 to 240 VAC, straight, 3 m
For Germany, France, Spain, Nether‐
lands, Belgium, Sweden, Austria, Finland
6ES7 900-0AA00-0XA0
Power cable
100 to 240 VAC, straight, 3 m
For Great Britain 6ES7 900-0BA00-0XA0
Power cable
100 to 240 VAC, straight, 3 m
For Switzerland 6ES7 900-0CA00-0XA0
Power cable
100 to 240 VAC, straight, 3 m
For America 6ES7 900-0DA00-0XA0
Power cable
100 to 240 VAC, straight, 3 m
For Italy 6ES7 900-0EA00-0XA0
Power cable
100 to 240 VAC, straight, 3 m
For China 6ES7 900-0FA00-0XA0
Pluggable transceiver SFP (1000 Mbps)
Type Property Article number
SFP992-1 1 x 1000 Mbps, LC port optical for glass FO cable
(multimode), up to max. 750 m
6GK5 992-1AL00-8AA0
10 packing unit (VPE 10) 6GK5 992-1AL00-8AC0
SFP992-1 (C) 1 x 1000 Mbps, LC port optical, for glass FO cable
(multimode), up to max. 750 m, varnished
6GK5 992-1AL00-8FA0
SFP992-1+ 1 x 1000 Mbps, LC port optical for glass FO cable
(multimode), up to max. 2 km
6GK5 992-1AG00-8AA0
SFP992-1LD 1 x 1000 Mbps LC port optical for glass FO cable
(single mode) up to max. 10 km
6GK5 992-1AM00-8AA0
10 packing unit (VPE 10) 6GK5 992-1AM00-8AC0
SFP992-1LD (C) 1 x 1000 Mbps LC port optical for glass FO cable
(single mode) up to max. 10 km, varnished
6GK5 992-1AM00-8FA0
SFP992-1LD+ 1 x 1000 Mbps LC port optical for glass FO cable
(single mode) up to max. 30 km
6GK5 992-1AM30-8AA0
SFP992-1LH 1 x 1000 Mbps LC port optical for glass FO cable
(single mode) up to max. 40 km
6GK5 992-1AN00-8AA0
SFP992-1LH+ 1 x 1000 Mbps LC port optical for glass FO cable
(single mode) up to max. 70 km
6GK5 992-1AP00-8AA0
SFP992-1ELH 1 x 1000 Mbps LC port optical for glass FO cable
(single mode) up to max. 120 km
6GK5 992-1AQ00-8AA0
Pluggable transceivers with the supplement (C) in the type name have varnished printed circuit boards
(conformal coating).
Description of the device
2.3 Accessories
SCALANCE XR-100WG
14 Operating Instructions, 09/2020, C79000-G8976-C455-04

Note
Restriction for pluggable transceivers
The maximum ambient temperature changes if you use pluggable transceivers:
• If you use pluggable transceivers of the types +, LD+, LH, LH+ or ELH, the maximum ambient
temperature is reduced to 50 °C.
For the values of the ambient temperature without pluggable transceivers, refer to the section
"Technical speci󹪝cations (Page 43)".
Bidirectional plug-in transceiver SFP
Bidirectional plug-in transceivers feature only one 󹪝ber connection. They transmit and receive
on two di󹪜erent wavelengths. To establish a connection, you need two matching bidirectional
SFPs. The connected SFPs must respectively transmit on the wavelength at which the
connection partner receives.
Type Properties Article number
SFP992-1BXMT 1 x 1000 Mbps LC port optical for glass FO (multi‐
mode) with max. 500 m, transmits at 1550 nm,
receives at 1310 nm
6GK5 992-1AL00-8TA0
SFP992-1BXMR 1 x 1000 Mbps LC port optical for glass FO (multi‐
mode) with max. 500 m, transmits at 1310 nm,
receives at 1550 nm
6GK5 992-1AL00-8RA0
SFP992-1BX10T 1 x 1000 Mbps LC port optical for glass FO (single
mode) with max. 10 km, transmits at 1550 nm,
receives at 1310 nm
6GK5 992-1AM00-8TA0
SFP992-1BX10R 1 x 1000 Mbps LC port optical for glass FO (single
mode) with max. 10 km, transmits at 1310 nm,
receives at 1550 nm
6GK5 992-1AM00-8RA0
Note
Restriction for pluggable transceivers
The maximum ambient temperature changes if you use pluggable transceivers:
• If you use bidirectional pluggable transceivers, the maximum ambient temperature is
reduced to 50 ℃.
For the values of the ambient temperature without pluggable transceivers, refer to the section
"Technical speci󹪝cations (Page 43)".
Description of the device
2.3 Accessories
SCALANCE XR-100WG
Operating Instructions, 09/2020, C79000-G8976-C455-04 15

SFP+ transceiver
Type Properties Article number
SFP993-1 1 x 10 Gbps, LC port optical for glass FO cable
(multimode), up to max. 550 m
6GK5 993-1AT00-8AA0
SFP993-1LD 1 x 10 Gbps, LC port optical for glass FO cable
(single mode), up to max. 10 km
6GK5 993-1AU00-8AA0
SFP993-1LH 1 x 10 Gbps, LC port optical for glass FO cable
(single mode), up to max. 40 km
6GK5 993-1AV00-8AA0
Can only be operated in SFP+ slots.
Note
Restriction for pluggable transceivers
The maximum ambient temperature changes if you use pluggable transceivers:
• If you use the pluggable transceivers SFP993-1 or SFP993-1LD pluggable transceivers, the
maximum ambient temperature is reduced to 50 ℃.
• If you use pluggable transceiver SFP993-1LH, the maximum ambient temperature is reduced
to 40 ℃.
For the values of the ambient temperature without pluggable transceivers, refer to the section
"Technical speci󹪝cations (Page 43)".
2.4 LED display
2.4.1 Fault LED "F"
The fault LED "F" indicates the incorrect functioning of the device.
LED color LED status Meaning
Red Lit The device has detected a problem. Possible errors/faults:
• Internal power supply error
• Short-circuit at power supply
-O󹪜 The device is switched o󹪜 or has not detected a problem.
Description of the device
2.4 LED display
SCALANCE XR-100WG
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2.4.2 "OVERLOAD" LED
The "OVERLOAD" LED indicates the range in which the PoE consumption takes place.
LED color LED status Meaning
Orange Lit The device is operated above the limit range. More power is supplied
than speci󹪝ed.
Example:
The device has a PoE power budget of 200 W.
If the connected PoE consumers use a total greater than 200 W, the LED
lights up. The power supply can only provide the higher power for a short
time.
Check the PoE consumers and reduce consumption.
-O󹪜 The device is operated within the speci󹪝ed range.
2.4.3 LED "L"
The LED "L" shows the range of the power supply at connector L1.
LED color LED status Meaning
Green Lit The power supply is connected.
-O󹪜 No external power supply is connected.
2.4.4 Port LEDs "P"
The port LEDs indicate the status of the ports.
RJ-45 ports
Each RJ-45 port has 1 integrated LED.
The green LED shows the status of the link and the data transfer.
LED color LED status Meaning
Green Lit link exists
Green Flashing Link exists and there is data transmission at the port
-O󹪜 No link exists
2.5 Power over Ethernet
Function
The "Power over Ethernet" function supplies connected devices with power via the Ethernet
cable. Devices supplied with power via an Ethernet cable do not require a separate voltage
source.
Description of the device
2.5 Power over Ethernet
SCALANCE XR-100WG
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PoE-compliant devices can be divided into the following groups:
• Power source (PSE - Power Sourcing Equipment)
These inject power onto the Ethernet cable.
• Power consumer (PD - Powered Device)
These are supplied with power via the Ethernet cable.
2.5.1 Power and voltage range according to the standard
Note the values speci󹪝ed for the power of the power source, so that the power supply is ensured
at the power consumers according to the standard.
PoE class Power supplied by the pow‐
er source
Available power at the pow‐
er source
Type Standard Designation
0 15.4 W 12.95 W 1 IEEE802.3af PoE
1 4 3.84 W
2 7 6.49 W
3 15.4 W 12.95 W
4 30 25.5 W 2 IEEE802.3at PoE+
5 45 40 W 3 IEEE802.3bt 4-pair PoE
6 60 51 W
2.5.2 PoE properties of the devices
Note
Turn o󹪜 the power source before you disconnect the PoE cable of a power consumer.
Power source
• The device can supply energy consumers of the standards IEEE802.af Type 1, IEEE802.at
Type 2 or IEEE802.3bt Type 3.
• A power source can make provide a total of 210 W available (including line losses). The power
can be distributed to the ports as desired.
PoE ports
• The PoE ports are not isolated from each other. This means that they meet the conditions
named in Environment A (IEEE 802.3): Power supply over Ethernet within a power supply
system.
• The electrical isolation of the ports is designed for 1500 Vrms (1 minute).
• Ports P1 to P8 support PoE classes 0 to 6. They supply connected devices with up to 60 W per
port (according to IEEE802.3af, IEEE802.3at and IEEE802.3bt).
Description of the device
2.5 Power over Ethernet
SCALANCE XR-100WG
18 Operating Instructions, 09/2020, C79000-G8976-C455-04

Power
• If the maximum power is exceeded, the supply is switched o󹪜 port by port (according to
priority).
• In the case of an incorrect con󹪝guration, the supply is switched o󹪜 port by port (according to
priority) if the permissible minimum voltage according to IEEE 802.3bt is fallen below.
2.5.3 Voltage transmission and pin assignment (ports P1 to P8)
The table below shows the most important power transfer and pin assignment for ports P1 to P8.
Pin number Assignment
Pin 1 Positive power supply
Pin 2 Positive power supply
Pin 3 Negative power supply
Pin 4 Positive power supply
Pin 5 Positive power supply
Pin 6 Negative power supply
Pin 7 Negative power supply
Pin 8 Negative power supply
Description of the device
2.5 Power over Ethernet
SCALANCE XR-100WG
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Description of the device
2.5 Power over Ethernet
SCALANCE XR-100WG
20 Operating Instructions, 09/2020, C79000-G8976-C455-04