Belden Hirschmann RS20 U Series User manual

Installation RS20/RS30-...U
Release 03 08/2019
Technical support
https://hirschmann-support.belden.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.
© 2019 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.
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).
Hirschmann Automation and Control GmbH
Stuttgarter Str. 45-51
72654 Neckartenzlingen
Germany
Installation RS20/RS30-...U 13.8.19

Installation RS20/RS30-...U
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Contents
Safety instructions 5
About this Manual 14
Key 14
1 Description 15
1.1 Description of the device variants 16
1.1.1 Combination options for RS20/30-...U 16
1.1.2 Number of ports and media for RS20...U 18
1.1.3 Number of ports and media for RS30...U 21
1.2 Ethernet ports 23
1.2.1 10/100 Mbit/s twisted pair port 23
1.2.2 10/100/1000 Mbit/s twisted pair port 24
1.2.3 100 Mbit/s F/O port 25
1.2.4 1000 Mbit/s F/O port 25
1.3 Display elements 26
1.3.1 Device state 26
1.3.2 Port state 27
2 Installation 28
2.1 Checking the package contents 28
2.2 Installing and grounding the device 28
2.2.1 Installing the device onto the DIN rail 29
2.3 Grounding the device 29
2.4 Installing an SFP transceiver (optional) 29
2.5 Adjust DIP switch settings 30
2.6 Connecting the terminal block 31
2.6.1 Supply voltage 31
2.6.2 “FAULT” signal contact 32
2.7 Mounting the terminal block 32
2.8 Operating the device 32
2.9 Connecting data cables 32
2.10 Filling out the inscription label 33

4Installation RS20/RS30-...U
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3 Monitoring the ambient air temperature 34
4 Maintenance and service 35
5Disassembly 36
5.1 Removing the device 36
5.2 Removing an SFP transceiver (optional) 37
6 Technical data 38
A Further support 47

Installation RS20/RS30-...U
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Safety instructions
General safety instructions
You operate this device with electricity. Improper usage of the device
entails the risk of physical injury or significant property damage. The
proper and safe operation of this device depends on proper handling
during transportation, proper storage and installation, and careful
operation and maintenance procedures.
Before connecting any cable, read this document, and the safety
instructions and warnings.
Operate the device with undamaged components exclusively.
The device is free of any service components. In case of a damaged
or malfunctioning the device, turn off the supply voltage and return the
device to Hirschmann for inspection.
Certified usage
Use the device solely for the application cases described in the
Hirschmann product information, including this manual.
Operate the device solely according to the technical specifications.
See “Technical data” on page 38.
Supply voltage
The supply voltage is electrically isolated from the housing.
The devices are designed for operation with safety extra-low voltage.
Connect only SELV circuits with voltage restrictions in line with IEC/EN
60950-1 to the supply voltage connections and signal contacts.
Connect only a supply voltage that corresponds to the type plate of
your device.
WARNING
UNCONTROLLED MACHINE ACTIONS
To avoid uncontrolled machine actions caused by data loss, configure all
the data transmission devices individually.
Before you start any machine which is controlled via data transmission, be
sure to complete the configuration of all data transmission devices.
Failure to follow these instructions can result in death, serious injury,
or equipment damage.

6Installation RS20/RS30-...U
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Ground the device before connecting any other cables.
Observe the maximum values for the contact load of the signal
contact.
Relevant for North America:
The device may only be connected to a Class 2 supply voltage 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 (140/167 °F) or 75 °C (167 °F) copper (Cu) wire only.
Internal fuses are triggered only in the case of a detected error in the
device. In case of damage or malfunction of the device, turn off the
supply voltage and return the device to the plant for inspection.
Start connecting the electrical wires only if all the above safety
requirements are fulfilled.
Enable the supply voltage for the device only when the following
requirements are fulfilled:
the housing is closed
the terminal blocks are wired correctly
the terminal blocks for the power supply are connected
Grounding the device
The housing is grounded via the separate ground screw on the bottom left
of the front panel.
For the ground conductor, use a wire diameter of at least 1.0 mm².
Ground the device before connecting any other cables.
Disconnect the grounding only after disconnecting all other cables.
Shielding ground
The overall shield of a connected shielded twisted pair cable is connected
to the ground connector on the front panel as a conductor.
Beware of possible short circuits when connecting a cable section with
conductive shielding braiding.

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Relevant for use in explosion hazard areas (Hazardous
Locations, Class I, Division 2):
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 (140/167 °F) or 75 °C (167 °F) copper (Cu) wire only.
Avertissement - Risque d'explosion - Ne pas débrancher tant que le
circuit est sous tension à moins que l'emplacement soit connu pour ne
contenir aucune concentration de gaz inflammable.
Avertissement - Risque d'explosion - La substitution de tout composant
peut rendre ce matériel incompatible pour une utilisation en classe I,
division 2.

8Installation RS20/RS30-...U
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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 ANY 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
Fault contacts. Equipment with nonincendive
field wiring parameters:
V<30V I<90mA L
i
<1,0µH C
i
<2.5nF
1
USB Port for Auto Configuration Adapter.
For maintenance only – See Installation
Instructions
USB Port for Auto Configuration Adapter.
For maintenance only – See Installation
Instructions
Power supply (Redundant: P1 P2)
Type “P”: 48Vdc
(47Vdc min. … 52Vdc max.)
Fault contacts. Equipment with nonincendive
field wiring parameters:
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

Installation RS20/RS30-...U
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ATEX directive 94/9/EG – specific regulations for safe
operation
Relevant for RS20/RS30-...U 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 3 GEx 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 119 V.
Connectors shall be connected or disconnected exclusively in dead-
voltage state.
DIP switches shall be switched exclusively in dead-voltage state.
The USB port shall remain disconnected.

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IECEx – Certification Scheme for Explosive Atmospheres
For RS20/RS30-...U devices labeled with an IECEx certificate number,
the following applies:
List of standards:
IEC 60079-0:2011 + Corr.2012 + Corr.2013
IEC 60079-15:2010
The equipment shall only be used in an area of not more than pollution
degree 2, as defined in IEC 60664-1.
Make sure that the device has the following label:
Ex nA IIC T4 Gc IECEx DEK 14.0077X
Ambient rating and temperature code:
T4: 0 °C ≤Ta ≤+60 °C for “S” types
(item 14 of nomenclature breakdown) or
T4: −40 °C ≤Ta ≤+70 °C for “T” or “E” types
(item 14 of nomenclature breakdown).
The modules shall be installed in a suitable enclosure in accordance
with IEC 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 119 V.
Connectors shall be connected or disconnected exclusively in dead-
voltage state.
DIP switches shall be switched exclusively in
dead-voltage state.
The USB port shall remain disconnected.

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Device casing
Only technicians authorized by the manufacturer are permitted to open
the housing.
Never insert pointed objects (narrow screwdrivers, wires, etc.) into the
device or into the connection terminals for electric conductors. Do not
touch the connection terminals.
Keep the ventilation slits free to ensure good air circulation.
See “General technical data” on page 38.
Install the device in the vertical position.
At ambient temperatures > 140 °F (60 °C):
The surfaces of the device housing may become hot. Avoid touching
the device while it is operating.
Installation site requirements
When you are selecting the installation location, make sure you
observe the climatic threshold values specified in the technical data.
Operate the device at the specified ambient temperature (temperature
of the ambient air at a distance of 2 inches (5 cm) from the device) and
at the specified relative humidity exclusively.
Use the device in an environment with a maximum pollution degree
that complies with the specifications in the technical data.
Install the device in a fire protected enclosure according to
EN 60950-1.
If installed in a living area or office environment, the device must be
operated only in switch cabinets with fire protection characteristics
according to EN 60950-1.
Qualification requirements for personnel
Only allow qualified personnel to work on the device.
Qualified personnel have the following characteristics:
Qualified personnel are properly trained. Training as well as practical
knowledge and experience make up their qualifications. This is the
prerequisite for grounding and labeling circuits, devices, and systems
in accordance with current standards in safety technology.
Qualified personnel are aware of the dangers that exist in their work.
Qualified personnel are familiar with appropriate measures against
these hazards in order to reduce the risk for themselves and others.
Qualified personnel receive training on a regular basis.
National and international safety regulations
Verify that the electrical installation meets locally or nationally applicable
safety regulations.

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CE marking
The labeled devices comply with the regulations contained in the following
European directive(s):
2011/65/EU and 2015/863/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.
2014/30/EU (EMC)
Directive of the European Parliament and of the Council on the
harmonisation of the laws of the Member States relating 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
The device can be used in the industrial sector.
Interference immunity: EN 61000-6-2
Emitted interference: EN 55032
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.
LED or laser components
LED or LASER components according to IEC 60825-1 (2007):
CLASS 1 LASER PRODUCT
CLASS 1 LED PRODUCT
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.

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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 these
frequencies. 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 residential 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 device must be disposed of properly as electronic waste,
in accordance with the current disposal regulations of your county, state,
and country.

14 Installation RS20/RS30-...U
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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

Installation RS20/RS30-...U
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1 Description
You can choose from between a wide range of variants. You have the option
to 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
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 device is mounted by latching in place on a 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.

16 Installation RS20/RS30-...U
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1.1 Description of the device variants
The devices differ with regard to the number of interfaces and the media type
for connecting segments.
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 port type column,
the abbreviations F/O (optical fiber) and TP (twisted pair) designate the
media type. 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.
You have numerous options of combining the device characteristics. You can
determine the possible combinations using the configurator which is
available in the Belden E-Catalog (www.e-catalog.beldensolutions.com) on
the web page of the device.
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
Position Characteristic Ident. Ident.2
a) Property
1 to 4 Product RS20 Rail Switch without gigabit ports
RS30 Rail Switch with gigabit ports
5 - (hyphen) -
Table 2: Combination options for the RS20...U/RS30...U device variants

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6 bis 7 Number of 10/100
Mbit/s ports
08 8 × 10/100 Mbit/s Ethernet
09 9 × 10/100 Mbit/s Ethernet
16 16 × 10/100 Mbit/s Ethernet
17 17 × 10/100 Mbit/s Ethernet
24 24 × 10/100 Mbit/s Ethernet
25 25 × 10/100 Mbit/s Ethernet
8 and 9 Number of
1000 Mbit/s ports
00 0 × 1000 Mbit/s Ethernet
02 2 × 1000 Mbit/s Ethernet
10 and 11 a) Uplink port(s)
1 port (Ident.
column)
or alternatively
2 ports
(Ident.2 column)
T1 Twisted Pair TX, RJ45
M2 MM b) Multimode FX, DSC, 100 Mbit/s
M4 NN b) Multimode FX, ST, 100 Mbit/s
S2 VV b) Singlemode FX, DSC, 100 Mbit/s
S4 UUb) Singlemode FX, ST, 100 Mbit/s
L2 LLb) Singlemode Longhaul, DSC, 100 Mbit/s
O6 OOc) SFP slot, 100d)/1000 Mbit/s
Z6 ZZ c) SFP slot, 100 Mbit/s
12 and 13 a) See items 10 and
11
14 Temperature range S Standard: +32 °F to +140 °F (0 °C to +60
°C)
T Extended −40 °F to +158 °F (−40 °C to
+70 °C )e)
E Extended −40 °F to +158 °F (−40 °C to
+70 °C ),
Conformal Coating d)
15 Voltage range D 9.6 V DC to 60 V DC or
18 V AC to 30 V AC
16 Approval A CE, UL508, ISA 12.12.01 (UL1604)
H f) 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/IECEx
17 Software variant U Unmanaged
a. For device variants with 2 uplink ports you use the “Ident.” column for items 10+11 and for
items 12+13.
For device variants with 3 uplink ports you use the “Ident.2” column for items 10+11 and the
“Ident.” column for items 12+13.
For device variants with 4 uplink ports you use the “Ident.2” column for items 10+11 and for
items 12+13.
b. For RS20-0900...U, RS20-1700...U, RS20-2500...U
c. In combination with “2nd uplink port” “ZZ” and “1st uplink port” “OO”.
d. Only for “OO” combination
e. Not when using GG or G2 transceivers.
f. Without railway certification EN50155 (Train).
Position Characteristic Ident. Ident.2
a) Property
Table 2: Combination options for the RS20...U/RS30...U device variants

18 Installation RS20/RS30-...U
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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

Installation RS20/RS30-...U
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Figure 2: Device variants with 16 * 10/100 Mbit/s ports (RS20-1600...U)
1 to 5 – see figure 1
Figure 3: Device variants with 24 * 10/100 Mbit/s ports (RS20-2400...U)
1 to 5 – see figure 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

20 Installation RS20/RS30-...U
Release 03 08/2019
Figure 4: Device variants with 3 uplink ports (100 Mbit/s)
1 to 4 – see figure 1
5 – port 3, free choice of connection:
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
6 – port 1 + port 2, free choice of connections:
MM: Multimode FX, DSC, 100 Mbit/s
NN: Multimode FX, ST, 100 Mbit/s
VV: Singlemode FX, DSC, 100 Mbit/s
UU: Singlemode FX, ST, 100 Mbit/s
RS20
+24V(P1) 0V 0V
FAULT
+24V(P2)
4
6
8
10
12
14
16
18
5
7
9
11
13
15
17
19
20
22
24
21
23
25
RS20
+24V(P1) 0V 0V
FAULT
+24V(P2)
4
6
8
10
5
7
9
11
12
14
16
13
15
17
RS20
+24V(P1) 0V 0V
FAULT
+24V(P2)
4
6
8
5
7
9
LS DA
2
LS DA
1
LS DA
3
LS DA
2
LS DA
1
LS DA
3
LS DA
2
LS DA
1
LS DA
3
LA learn
SW2
P FAULT
ON LA learn
SW2
P FAULT
ON
LA learn
SW2
P FAULT
ON
4
44444
5
6
6
5
6
6
5
6
6
RS20-2500MMM2...D...U RS20-1700MMM2...D...U RS20-0900MMM2...D...U
1
2
3