Hirschmann RS30-...U Series User manual

RS20/RS30...U
Release 01 06/2012
Technical Support
https://hirschmann-support.belden.eu.com
User Manual
Installation
Industrial Ethernet Rail Switch
RS20/RS30-...U Family (unmanaged)
RS20
LA learn
+24V(P1) 0V 0V
FAULT
+24V(P2)
SW2
3
5
7
4
6
8
P FAULT
ON
LS DA
1
LS DA
1
LS DA
1
RS30
LA learn
+24V(P1) 0V 0V
FAULT
+24V(P2)
SW2
P FAULT
ON
3
5
7
9
4
6
8
10
11
13
15
12
14
16
LS DA
1
LS DA
1
LS DA
1
LS DA
1
RS20
LS DA
LA learn
+24V(P1) 0V 0V
FAULT
+24V(P2)
SW2
3
5
7
9
11
13
15
17
2
LS DA
1
4
6
8
10
12
14
16
18
19
21
23
20
22
24
P FAULT
ON
RS30
LA learn
+24V(P1) 0V 0V
FAULT
+24V(P2)
SW2
3
5
7
9
11
13
15
17
4
6
8
10
12
14
16
18
19
21
23
25
20
22
24
26
P FAULT
ON
2
LS
DA
1
LS
DA
RS30
LA learn
+24V(P1) 0V 0V
FAULT
+24V(P2)
SW2
P FAULT
ON
LS DA
1
LS DA
2
3
5
7
9
4
6
8
10

The naming of copyrighted trademarks in this manual, even when not specially indicated, should
not be taken to mean that these names may be considered as free in the sense of the trademark
and tradename protection law and hence that they may be freely used by anyone.
© 2012 Hirschmann Automation and Control GmbH
Manuals and software are protected by copyright. All rights reserved. The copying, reproduction,
translation, conversion into any electronic medium or machine scannable form is not permitted,
either in whole or in part. An exception is the preparation of a backup copy of the software for
your own use. For devices with embedded software, the end-user license agreement on the
enclosed CD applies.
The performance features described here are binding only if they have been expressly agreed
when the contract was made. This document was produced by Hirschmann Automation and
Control GmbH according to the best of the company's knowledge. Hirschmann reserves the right
to change the contents of this document without prior notice. Hirschmann can give no guarantee
in respect of the correctness or accuracy of the information in this document.
Hirschmann can accept no responsibility for damages, resulting from the use of the network
components or the associated operating software. In addition, we refer to the conditions of use
specified in the license contract.
You can get the latest version of this manual on the Internet at the Hirschmann product site
(www.hirschmann.com).
Printed in Germany
Hirschmann Automation and Control GmbH
Stuttgarter Str. 45-51
72654 Neckartenzlingen
Germany
Tel.: [phone]
RS20/RS30...U 039 524-101-01-0612 18.6.12

RS20/RS30...U
Release 1.0 07/2011 3
Contents
Safety instructions 5
About this Manual 14
Key 14
1 Device description 15
1.1 Description of the device variants 15
1.1.1 Combination options for RS20/30-...U 16
1.1.2 Number of ports and media for RS20...U 19
1.1.3 Number of ports and media for RS30...U 22
2 Assembly and start-up 25
2.1 Installing the device 25
2.1.1 Unpacking and checking 25
2.1.2 Installing the SFP modules (optional) 25
2.1.3 Adjust DIP switch settings 26
2.1.4 Connecting the terminal blocks for supply voltage and
signal contact 26
2.1.5 Installing the device on the DIN rail, grounding 27
2.1.6 Dimension drawings 28
2.1.7 Installing the terminal block, start-up procedure 29
2.1.8 Connecting the data lines 29
2.2 Display elements 31
2.3 Maintenance 32
2.4 Disassembly 33
3 Technical data 34
A Further Support 41

4RS20/RS30...U
Release 1.0 07/2011

RS20/RS30...U
Release 01 06/2012 5
Safety instructions
Important Information
Notice: Read these instructions carefully, and look at the equipment to
become familiar with the device before trying to install, operate, or maintain
it. The following special messages may appear throughout this
documentation or on the equipment to warn of potential hazards or to call
attention to information that clarifies or simplifies a procedure.
The addition of this symbol to a Danger or Warning safety label
indicates that an electrical hazard exists, which will result in
personal injury if the instructions are not followed.
This is the safety alert symbol. It is used to alert you to potential
personal injury hazards. Obey all safety messages that follow this
symbol to avoid possible injury or death.
Note: A note contains important information on the product, on how to
manage the product, or on the respective section of the documentation to
which your special attention is being drawn.
DANGER
DANGER indicates an imminently hazardous situation which, if not
avoided, will result in death or serious injury.
WARNING
WARNING indicates a potentially hazardous situation which, if not avoided,
can result in death or serious injury.
CAUTION
CAUTION indicates a potentially hazardous situation which, if not avoided,
can result in minor or moderate injury.

6RS20/RS30...U
Release 01 06/2012
Certified usage
Please observe the following: The device may only be employed for the
purposes described in the catalog and technical description, and only in
conjunction with external devices and components recommended or
approved by the manufacturer. The product can only be operated
correctly and safely if it is transported, stored, installed and assembled
properly and correctly. Furthermore, it must be operated and serviced
carefully.
Supply voltage
For safety reasons the devices have been designed to operate at low
voltages. Thus, they may only be connected to the supply voltage
connections and to the signal contact with SELV circuits with the voltage
restrictions in accordance with IEC/EN 60950-1.
The supply voltage is electrically isolated from the housing.
Use undamaged parts.
Relevant for North America:
The device may only be connected to a supply voltage of class 2 that
fulfills the requirements of the National Electrical Code, Table 11(b). If
the voltage is being supplied redundantly (two different voltage
sources), the combined supply voltages must fulfill the requirements of
the National Electrical Code, Table 11(b).
Relevant for North America: For use in class 2 circuits.
Use 60/75 °C or 75 °C copper (Cu) wire only.
The device does not contain any service components. Internal fuses
are only triggered if there is a fault in the device. If the device is not
functioning correctly, or if it is damaged, switch off the supply voltage
and return the device to the plant for inspection.
Only switch on the supply voltage to the device if
the housing is closed,
the terminal blocks are wired up correctly and
the terminal blocks are connected.

RS20/RS30...U
Release 01 06/2012 7
Shielding ground
Note: The shield ground wire of the twisted pair lines is connected to the
front panel as a conductor.
Beware of possible short circuits when connecting a cable section with
conductive shielding braiding.
Hazardous Locations
Relevant for North America for devices certified for Hazardous Locations:
Power, input and output (I/O) wiring must be in accordance with Class I,
Division 2 wiring methods [Article 501-4(b) of the National Electrical
Code, NFPA 70] and in accordance with the authority having jurisdiction.

SUITABLE FOR USE IN CLASS I, DIVISION 2, GROUPS A, B, C AND D
HAZARDOUS LOCATIONS, OR NON-HAZARDOUS LOCATIONS
ONLY.
WARNING – EXPLOSION HAZARD – SUBSTITUTION OF ANY
COMPONENTS MAY IMPAIR SUITABLE FOR CLASS I, DIVISION 2.
WARNING – EXPLOSION HAZARD – DO NOT DISCONNECT
EQUIPMENT WHILE THE CIRCUIT IS LIVE OR UNLESS THE AREA IS
KNOWN TO BE FREE OF IGNITABLE CONCENTRATIONS.

The USB connector is for temporary connection only. Do not use,
connect, or disconnect unless area is known to be non-hazardous.
Connection or disconnection in an explosive atmosphere could result in
an explosion.

Peripheral equipment must be suitabel for the location it is used in. 
Use 60/75 °C or 75 °C copper (Cu) wire only.

8RS20/RS30...U
Release 01 06/2012
CONTROL DRAWING: Hazardous Locations Class I Division 2 Groups A, B ,C ,D
Notes:
The nonincendive field wiring circuit concept allows interconnection of nonincendive field wiring apparatus
and associated nonincendive field wiring apparatus using any of the wiring methods permitted for
unclassified locations when certain parametric conditions are met.
CaCi+ CCable ; LaLi+ LCable
Nonincendive field wiring circuits must be wired in accordance with the National Electrical Code (NEC),
NFPA 70 , article 501.
Nonincendive Field Wiring Parameters:
Entity Parameters
... for Class I Division 2 Groups A,B,C,D =>
Vmax
[V]
Imax
[mA]
Ci
[nF]
Li
[µH]
Fault contacts 30 90 2,5 1,0
WARNING - EXPLOSION HAZARD – SUBSTITUTION OF COMPONENTS MAY IMPAIR SUITABILITY
FOR HAZARDOUS LOCATIONS OR EXPLOSIVE ATMOSPHERES.
WARNING - EXPLOSION HAZARD - DO NOT DISCONNECT EQUIPMENT UNLESS POWER HAS BEEN
SWITCHED OFF OR THE AREA IS KNOWN TO BE NON-HAZARDOUS.
DO NOT OPEN WHEN ENERGIZED.
:
CONTROL DRAWING for RS20, RS22, RS30, RS32 and RS40 Family
Size A4 Document No.: 000157671DNR Rev. 0
Date: 2011-09-21 Sheet 1 of 1
NON HAZARDOUS LOCATION
USB Port for Auto Configuration
Adapter.
For maintenance only
See
P1
P2
HAZARDOUS LOCATION
1
)DXOWFRQWDFWV
(TXLSPHQWZLWKQRQLQFHQGLYHILHOGZLULQJSDUDPHWHUV
V<30V I<90mA Li<1,0µH Ci<2,5nF
1
86%3RUWIRU$XWR RQILJXUDWLRQ$GDSWHU
)RUPDLQWHQDQFHRQO\±6HH,QVWDOODWLRQ,QVWUXFWLRQV
USB Port for Auto Configuration Adapter.
For maintenance only – See Installation
Instructions
Power supply (Redundant: P1 P2)
Type “P”: 48Vdc max.
)DXOWFRQWDFWV
(TXLSPHQWZLWKQRQLQFHQGLYHILHOGZLULQJSDUDPHWHUV
V<30V I<90mA Li<1,0µH Ci<2,5nF
1
Power supply:
(Redundant: P1 P2)
Type “D”: 9,6Vdc – 60Vdc
P1
P2
P1
P2

RS20/RS30...U
Release 01 06/2012 9
ATEX Directive 94/9 EC – Special conditions for safe use
Relevant for RS20/RS30-...U family devices when operating in explosive
gas atmospheres according to ATEX Directive 94/9 EC, the following
applies:
List of Standards: 
EN 60079-0:2009
EN 60079-15:2010
Certificate No.: DEKRA 11ATEX0139 X.
Make sure that the device has the following label:
II 3G Ex nA IIC T4 Gc DEKRA 11ATEX0139 X
Ambient rating:
Ta: 0 °C ... +60 °C for “U” types (item 17 of nomenclature
breakdown).
The modules shall be installed in a suitable enclosure in accordance
with EN 60079-15 providing a degree of protection of at least IP54
according to EN 60529, taking into account the environmental
conditions under which the equipment will be used.
When the temperature under rated conditions exceeds 70 °C at the
cable or conduit entry point, or 80 °C at the branching point of the
conductors, the temperature specification of the selected cable and
cable entries shall be in compliance with the actual measured
temperature values.
Provisions shall be made to prevent the rated voltage from being
exceeded by transient disturbances of more than 40 %.
Connectors shall be connected or disconnected exclusively in dead-
voltage state.
DIP switches shall be switched exclusively in dead-voltage state.
The USB port (not mounted to RS20/RS30-...U devices) shall
remain disconnected.


10 RS20/RS30...U
Release 01 06/2012
Housing
Only technicians authorized by the manufacturer are permitted to open
the housing.
The housing is grounded via the separate ground screw on the bottom left
of the front panel.
For the ground conductor, use a cable with a cross section of at least
1.0 mm².
The clearance between the ventilation slots of the housing and other
objects must be at least 10 cm (3.94 in).
The device must be installed in the vertical position.
If installed in a living area or office environment, the device must be
operated exclusively in switch cabinets with fire protection
characteristics in accordance with EN 60950-1.
WARNING
ELECTRIC SHOCK
Never insert any pointed objects (small screwdrivers, wires, etc.) into the
product!
Never insert sharp objects (small screwdrivers, wires, etc.) into the
connection terminals for the supply voltage or the signal contact, and do not
touch the terminals!
Failure to follow these instructions can result in death, serious injury,
or equipment damage.
CAUTION
EQUIPMENT OVERHEATING
When installing the device, make sure any ventilation slots remain free. 
Maintain a clearance of at least 10 cm (3.94 in).
Failure to follow these instructions can result in injury or equipment
damage.

RS20/RS30...U
Release 01 06/2012 11
Environment
The device may only be operated at the specified surrounding air
temperature (temperature of the surrounding air at a distance of up to
5 cm (1.97 in) from the device) and relative air humidity specified in the
technical data.
Install the device in a location where the climatic threshold values
specified in the technical data will be observed.
Use the device only in an environment within the pollution degree
specified in the technical data.
Qualification requirements for personnel
Qualified personnel as understood in this manual and the warning signs,
are persons who are familiar with the setup, assembly, startup, and
operation of this product and are appropriately qualified for their job. This
includes, for example, those persons who have been:
trained or directed or authorized to switch on and off, to ground and to
label power circuits and devices or systems in accordance with current
safety engineering standards;
trained or directed in the care and use of appropriate safety equipment
in accordance with the current standards of safety engineering;
trained in providing first aid.
General safety instructions
Electricity is used to operate this equipment. Comply with every detail of
the safety requirements specified in the operating instructions regarding
the voltages to apply.
See “Supply voltage” on page 6.
Non-observance of these safety instructions can therefore cause material
damage and/or injuries.
Only appropriately qualified personnel should work on this device or in
its vicinity. Qualified personnel must be thoroughly familiar with the
warnings and maintenance procedures in accordance with this
operating manual.
The proper and safe operation of this device depends on proper
handling during transport, proper storage and assembly, and
conscientious operation and maintenance procedures.
Never start operating the device with damaged components.
Only use the devices in accordance with this manual. In particular,
observe the warnings and safety-related information.
Any work that may be required on the electrical installation may only
be carried out by personnel trained for this purpose.

12 RS20/RS30...U
Release 01 06/2012
Note: LED or LASER components in compliance with IEC 60825-1
(2007):
CLASS 1 LASER PRODUCT
CLASS 1 LED PRODUCT
National and international safety regulations
Make sure that the electrical installation meets local or nationally
applicable safety regulations.
CE marking
The devices comply with the regulations contained in the following
European directive(s):
2011/65/EU (RoHS)
Directive of the European Parliament and of the Council on the restriction
of the use of certain hazardous substances in electrical and electronic
equipment.
2004/108/EC (EMC)
Directive of the European Parliament and the council for standardizing the
regulations of member states with regard to electromagnetic
compatibility.
In accordance with the above-named EU directive(s), the EU conformity
declaration will be at the disposal of the relevant authorities at the
following address:
Hirschmann Automation and Control GmbH
Stuttgarter Str. 45-51
72654 Neckartenzlingen
Tel.: [phone]
The product can be used in the industrial sector.
Interference immunity: EN 61000-6-2:2005
Emitted interference: EN 55022:2010
Warning! This is a class A device. This device can cause interference in
living areas, and in this case the operator may be required to take
appropriate measures.
Note: The assembly guidelines provided in these instructions must be
strictly adhered to in order to observe the EMC threshold values.
FCC note:
This device complies with part 15 of the FCC rules. Operation is subject
to the following two conditions : (1) This device may not cause harmful
interference; (2) this device must accept any interference received,
including interference that may cause undesired operation.

RS20/RS30...U
Release 01 06/2012 13
Appropriate testing has established that this device fulfills the
requirements of a class A digital device in line with part 15 of the FCC
regulations.
These requirements are designed to provide sufficient protection against
interference when the device is being used in a business environment.
The device creates and uses high frequencies and can also radiate high
frequencies, and if it is not installed and used in accordance with this
operating manual, it can cause radio transmission interference. The use
of this device in a living area can also cause interference, and in this case
the user is obliged to cover the costs of removing the interference.
Recycling note
After usage, this product must be disposed of properly as electronic
waste, in accordance with the current disposal regulations of your county,
state and country.

14 RS20/RS30...U
Release 01 06/2012
About this Manual
The “Installation” user manual contains a device description, safety
instructions, a description of the display, and the other information that you
need to install the device.
Key
The symbols used in this manual have the following meanings:
Listing
Work step
Subheading

RS20/RS30...U
Release 01 06/2012 15
1 Device description
The RS20/RS30...U family provides you with a range of device variants. You
can set up your device individually based on different criteria:
Number of ports
Transmission speed
Media type
Types of connectors
Temperature range
Certifications
The RS20/RS30...U devices are designed for the special requirements of
industrial automation. They meet the relevant industry standards, provide
very high operational reliability, even under extreme conditions, and also
provide long-term reliability and flexibility.
The devices allow you to set up switched industrial Ethernet networks that
conform to the IEEE 802.3 standard using copper wires or optical fibers in a
line structure.
The devices work without a fan.
The voltage is supplied redundantly.
The devices are mounted very quickly by snapping them onto the DIN rail.
Depending on the device variant, you can choose various media to connect
terminal devices and other infrastructure components:
twisted pair cable
multimode F/O
singlemode F/O
The twisted pair ports support:
Autocrossing
Autonegotiation
Autopolarity
The Hirschmann network components help you ensure continuous
communication across all levels of the company network.
1.1 Description of the device variants
The devices differ with regard to the number of interfaces and the media type
for connecting segments.

16 RS20/RS30...U
Release 01 06/2012
The table below shows 2 port categories for each product variant: uplink
ports and other ports. The table also shows for each product category the
number of ports you can select, and the type of ports. In the column for the
port type, the abbreviations F/O (optical fiber) and TP (twisted pair) indicate
the media type, while the abbreviations DSC, ST, SFP and RJ45 indicate the
socket type.
1.1.1 Combination options for RS20/30-...U
The product designation of your device is made from combining the desired
product characteristics in accordance with the following table. You will find
the corresponding short designation in columns 3 and 4.
Uplink ports Other ports
Variant Numbe
r
Type Number Type
RS20-...U 2 10/100 Mbit/s,
media selectable,
DSC, ST, RJ45
6, 14, 22 10/100 Mbit/s,
TP, RJ45
3 10/100 Mbit/s,
media selectable,
DSC, ST, RJ45
6, 14, 22 10/100 Mbit/s,
TP, RJ45
RS30-...U 2 1000 Mbit/s,
media selectable,
SFP, RJ45
8, 16, 24 10/100 Mbit/s,
TP, RJ45
4 2x100/1000 Mbit/s,
2x 100 Mbit/s,
F/O, SFP
6, 14, 22 10/100 Mbit/s,
TP, RJ45
Table 1: Number and type of ports

RS20/RS30...U
Release 01 06/2012 17
Item Characteristic Ident. Ident.2
a)
a. For device variants with two uplink ports you use the “Ident.” column for items 10+11 and for
items 12+13.
For device variants with three uplink ports you use the “Ident.2” column for items 10+11 and
the “Ident.” column for items 12+13.
For device variants with four uplink ports you use the “Ident.2” column for items 10+11 and
for items 12+13.
Property
1 to 4 Product RS20 Rail Switch without gigabit ports
RS30 Rail Switch with gigabit ports
5 - (hyphen) -
6 to 7 Number of 10/100 08 8 * 10/100 Mbit Ethernet
Mbit ports 09 9 * 10/100 Mbit Ethernet
16 16 * 10/100 Mbit Ethernet
17 17 * 10/100 Mbit Ethernet
24 24 * 10/100 Mbit Ethernet
25 25 * 10/100 Mbit Ethernet
8 and 9 Number of 1000 00 0 * 1000 Mbit Ethernet
Mbit ports 02 2 * 1000 Mbit Ethernet
10 and 11 a) Uplink port(s) T1 Twisted pair T(X), RJ45
1 port (Ident.
column)
M2 MM b)
b. For RS20-0900...U, RS20-1700...U, RS20-2500...U
Multimode FX, DSC, 100 Mbit
or alternatively M4 NN b) Multimode FX, ST, 100 Mbit
2 ports S2 VV b) Singlemode FX, DSC, 100 Mbit
(Ident.2 column) S4 UUb) Singlemode FX, ST, 100 Mbit
L2 LLb) Singlemode Longhaul, DSC, 100 Mbit
O6 OO c)
c. In connection with “2nd uplink port” “ZZ” and “1st uplink port” “OO”.
SFP slot, 1000 Mbit
Z6 ZZ c) SFP slot, 100 Mbit
12 and 13 a) See items 10 and
11
14 Temperature range S Standard 0 °C to +60 °C
T Extended -40 °C to +70 °C d)
d. Not when using GG or G2 transceivers.
E Extended -40 °C to +70 °C, conformal
coating d)
15 Voltage range D 9.6 VDC to 60 VDC or 18 VAC to 30 VAC
16 Certification A CE, UL508, ISA 12.12.01 (UL1604)
H e)
e. Without railway certification EN50155 (Train).
CE, UL508, ISA 12.12.01 (UL1604), GL,
Railway (along track), Sub Station
B e) CE, UL508, ISA 12.12.01 (UL1604), GL,
Railway (along track), Sub Station,
Hazardous Location (ATEX)
17 Software variant U Unmanaged
Table 2: Combination options for the device variants RS20...U/RS30...U

18 RS20/RS30...U
Release 01 06/2012
Examples for product name
Additional examples of devices with 3 or 4 uplink ports:
RS20-0900NNM4TDAU for RS20 with 3 uplink ports (ST)
NN: 2 * Multimode FX, ST, 100 Mbit/s (ports 1 and 2)
M4: 1 * Multimode FX, ST, 100 Mbit/s (port 3)
RS30-2402OOZZTDAU for RS30 with 4 uplink ports (SFP)
OO: 2 * SFP slot, 1000 Mbit/s (ports 1 and 2)
ZZ: 2 * SFP slot, 100 Mbit/s (ports 3 and 4)
RS30-
RS30- Rail Switch with gigabit ports
08
08 8 * 100 Mbit/s Ethernet ports
02
02 2 * 1000 Mbit/s Ethernet ports
O6
O6 Port 1 = SFP slot, 1000 Mbit/s
T1
T1 Port 2 = twisted-pair TX, RJ45 connector, 1000 Mbit/s
T
T Temperature range extended: -40 °C to +70 °C
D
D Voltage range: 9.6 V DC to 60 V DC or 18 V AC to 30 V AC
A
A Certifications: CE, UL 508, ISA 12.12.01 (UL 1604)
U
U Software variant: Unmanaged
Table 3: Example of RS30-...U with 2 uplink ports: RS30-0802O6T1TDAU
RS20-
RS20- Rail Switch without gigabit ports
09
09 9 * 100 Mbit/s Ethernet ports
00
00 0 * 1000 Mbit/s Ethernet ports
MM
MM Port 1 + 2 = 2 * Multimode FX, DSC, 100 Mbit/s
M2
M2 Port 3 = Multimode FX, DSC, 100 Mbit/s
S
S Temperature range standard: 0 °C to +60 °C
D
D Voltage range: 9.6 V DC to 60 V DC or 18 V AC to 30 V AC
A
A Certifications: CE, UL 508, ISA 12.12.01 (UL 1604)
U
U Software variant: Professional
Table 4: Example of RS20-...U with 3 uplink ports: RS20-0900MMM2SDAU

RS20/RS30...U
Release 01 06/2012 19
1.1.2 Number of ports and media for RS20...U
Figure 1: Device variants with 8 * 10/100 Mbit/s ports (RS20-0800...U) 
1 – plug-in terminal block, 6-pin 
2 – LED display elements 
3 – 2-pin DIP switch 
4 – ports in compliance with 10/100BASE-T(X) (RJ45 connections) 
5 – port 1 + port 2, free choice of connections: 
T1: Twisted-pair T(X), RJ45, 10/100 Mbit/s 
M2: Multimode FX, DSC, 100 Mbit/s 
M4: Multimode FX, ST, 100 Mbit/s 
S2: Singlemode FX, DSC, 100 Mbit/s 
S4: Singlemode FX, ST, 100 Mbit/s 
L2: Singlemode Longhaul FX, DSC, 100 Mbit/s 
G2: Singlemode Longhaul+ FX, DSC, 100 Mbit/s, 200 km
RS20
LS DA
LA learn
+24V(P1) 0V 0V
FAULT
+24V(P2)
SW2
2
LS DA
1
3
5
7
4
6
8
P FAULT
ON
RS20-0800M2M2...D...U RS20-0800M2T1...D...U
RS20
LA learn
+24V(P1) 0V 0V
FAULT
+24V(P2)
SW2
LS DA
1
3
5
7
4
6
8
P FAULT
ON
DA
2
LS
RS20
LA learn
+24V(P1) 0V 0V
FAULT
+24V(P2)
SW2
1
3
5
7
2
4
6
8
P FAULT
ON
RS20-0800T1T1...D...U
4
5
5
1
2
3

20 RS20/RS30...U
Release 01 06/2012
Figure 2: Device variants with 16 * 10/100 Mbit/s ports (RS20-1600...U) 
1 to 5 – see fig. 1
Figure 3: Device variants with 24 * 10/100 Mbit/s ports (RS20-2400...U)

1 to 5 – see fig. 1
RS20
LS DA
LA learn
+24V(P1) 0V 0V
FAULT
+24V(P2)
SW2
2
LS DA
1
P FAULT
ON
3
5
7
9
4
6
8
10
11
13
15
12
14
16
RS20-1600M2M2...D...U RS20-1600T1T1...D...U
RS20
LA learn
+24V(P1) 0V 0V
FAULT
+24V(P2)
SW2
1
3
5
7
2
4
6
8
9
11
13
15
10
12
14
16
P FAULT
ON
RS20-1600M2T1...D...U
RS20
LA learn
+24V(P1) 0V 0V
FAULT
+24V(P2)
SW2
LS DA
1
P FAULT
ON
3
5
7
9
4
6
8
10
11
13
15
12
14
16
2
DA
LS
4
44
5
5
1
2
3
RS20
LS DA
LA learn
+24V(P1) 0V 0V
FAULT
+24V(P2)
SW2
3
5
7
9
11
13
15
17
2
LS DA
1
4
6
8
10
12
14
16
18
19
21
23
20
22
24
P FAULT
ON
RS20-2400M2M2...D...U RS20-2400M2T1...D...U
RS20
LA learn
+24V(P1) 0V 0V
FAULT
+24V(P2)
SW2
3
5
7
9
11
13
15
17
4
6
8
10
12
14
16
18
19
21
23
20
22
24
P FAULT
ON
LS DA
1
2
DA
LS
RS20-2400T1T1...D...U
RS20
LA learn
+24V(P1) 0V 0V
FAULT
+24V(P2)
SW2
1
3
5
7
9
11
13
15
2
4
6
8
10
12
14
16
17
19
21
23
18
20
22
24
P FAULT
ON
4
44
5
5
1
2
3