Westermo Lynx DSS L206-S2 User manual

www.westermo.com
Lynx DSS
L106-S2/L206-S2
Industrial Ethernet
6-port Device Server Switch
WeOS

26643-2240

3
6643-2240
General information
Legal information
The contents of this document are provided “as is”. Except as required by applicable law,
no warranties of any kind, either express or implied, including, but not limited to, the
implied warranties of merchantability and fitness for a particular purpose, are made in
relation to the accuracy and reliability or contents of this document. Westermo reserves
the right to revise this document or withdraw it at any time without prior notice.
Under no circumstances shall Westermo be responsible for any loss of data or income or
any special, incidental, and consequential or indirect damages howsoever caused.
More information about Westermo can be found at the following address:
www.westermo.com
Software tools
Related software tools are available in the folder software tools under technical support
on the Westermo website.
License and copyright for included Free/Libre Open Source Software
This product includes software developed by third parties, including Free/Libre Open
Source Software (FLOSS). The specific license terms and copyright associated with the
software are included in each software package respectively. Please visit the product web
page for more information.
Upon request, the applicable source code will be provided. A nominal fee may be charged
to cover shipping and media. Please direct any source code request to your normal sales
or support channel.
WeOS Management Guide
This product runs WeOS (Westermo Operation System). Instructions for quick start,
configuration, factory reset and use of USB port are found in the WeOS Management
Guide at www.westermo.com.

46643-2240
Safety
Before installation:
Read this manual completely and gather all information on the unit. Make sure that
you understand it fully. Check that your application does not exceed the safe operating
specifications for this unit.
Warning - Hazardous voltage
The product must be installed by qualified service personnel
and built in to an apparatus cabinet or similar, where access is
restricted to service personnel only.
Before powering up, a protective earthing conductor must
be connected to the protective earthing terminal. Westermo
recommends a cross-sectional area of at least 4 mm2 on the
protective earthing conductor.
Do not open a connected product. Hazardous voltage may occur
when connected to a power supply.
Disconnect all network connectors and cable distribution system
connectors, including power supply, before disconnecting the
protective earthing terminal.
Warning - Protective fuse
The power supply wiring must be sufficiently fused. It must be
possible to disconnect manually from the power supply. Ensure
compliance to national installation regulations. Refer to the user
guide for detailed information.
Replacing the internal fuse must only be performed by Westermo
qualified personell.
Warning - Reduce the risk of fire
To reduce the risk of fire, use only no. AWG 26 or larger
telecommunication line cord.

5
6643-2240
Caution - Electrostatic discharge (ESD)
Prevent damage to internal electronic parts from electrostatic
discharge (ESD) by discharging your body to a grounding point
(e.g. use of a wrist strap).
Caution - Hot surface
Be aware of that the surface of this product may become hot.
When it is operated at high temperatures, the external surface
may exceed Touch Temperature Limit according to EN/IEC/UL
60950-1.
Westermo’s products are fanless and use convection cooling.
To avoid obstructing the airflow around the product, follow the
spacing recommendations.
Caution - Wiring
Ensure that the temperature rating of the cable is sufficient for the
application before connecting to the field wiring terminals.
Note
This unit can be connected to two different power sources.

66643-2240
Product disposal
This symbol means that the product shall not be treated
as unsorted municipal waste when disposing of it. It needs
to be handed over to an applicable collection point for
recycling electrical and electronic equipment.
By ensuring this product is disposed of correctly, you will
help to reduce hazardous substances and prevent potential
negative consequences to both environment and human
health, which could be caused by inappropriate disposal.
Care recommendations
Follow the care recommendations below to maintain full operation of unit and to fulfill
the warranty obligations:
• Do not drop, knock or shake the unit. Rough handling above the specification may
cause damage to internal circuit boards.
• Do not use harsh chemicals, cleaning solvents or strong detergents to clean the
unit.
• Do not paint the product. Paint can clog the product and prevent proper operation.
If the unit is not working properly, contact the place of purchase, nearest Westermo
distributor office or Westermo technical support.

7
6643-2240
Agency approvals and standards compliance
Type Approval / Compliance
EMC EN 61000-6-1, Immunity residential environments
EN 61000-6-2, Immunity industrial environments
EN 61000-6-3, Emission residential environments
EN 61000-6-4, Emission industrial environments
EN 50121-4, Railway signalling and telecommunications apparatus
IEC 62236-4, Railway signalling and telecommunications apparatus
Safety UL/IEC/EN 60950-1, IT equipment
Marine DNV GL rules for classification – Ships and offshore units
FCC Part 15.105
Notice:
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates, uses and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the following
measures:
… Reorient or relocate the receiving antenna
… Increase the separation between the equipment and receiver
… Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected
… Consult the dealer or an experienced radio/TV technician for help.
Corrosive
environment
Notice:
This product has been successfully tested in a corrosion test according to IEC 60068-
2-60, method 3. This means that the product meets the requirements to be placed in an
environment classified as ISA-S71.04 class G3.
Simplified EU declaration of conformity
Hereby, Westermo declares that the equipment is in compliance with EU directives. The
full EU declaration of conformity and other detailed information are available at the
respective product page at www.westermo.com. .
Caution - Corrosive gases
If the product is placed in a corrosive environment, it is important
that all unused connector sockets are protected with a suitable
plug, in order to avoid corrosion attacks on the gold plated
connector pins.

86643-2240
Type tests and environmental conditions
Environmental phenomena Basic standard Description Test levels
Electrostatic discharge EN 61000-4-2 Enclosure Contact: ±6 kV
Air: ±8 kV
Fast transients EN 61000-4-4 Power port ±2 kV
Ethernet
Status out/Digital in
Serial ports
Enclosure
Surge EN 61000-4-5 Power port L-L: ±0.5 kV, 2 Ω, 18 μF
L-E: ±2 kV, 42 Ω, 0.5 μF
L-L: ±1 kV, 42 Ω, 0.5 μF
L-E: ±2 kV, 12 Ω, 9 μF
L-L: ±1 kV, 12 Ω, 9 μF
Ethernet L-E: ±2 kV, 2Ω, 0.5 μF
Status out/Digital in L-E: ±2 kV, 42 Ω, 0.5 μF
L-L: ±1 kV, 42 Ω, 0.5 μF
RS-232 L-E: ±2 kV, 2 Ω, 0.5 μF
RS-422/485 L-E: ±2 kV, 42 Ω, 0.5 μF
Power frequency magnetic field EN 61000-4-8 Enclosure 300 A/m; 0, 16.7, 60 Hz
1000 A/m; 50 Hz
Pulsed magnetic field EN 61000-4-9 Enclosure 300 A/m
Radiated RF immunity EN 61000-4-3 Enclosure 20 V/m @ (80 – 2700) MHz
10 V/m @ (2700 – 6000) MHz
1 kHz sine, 80% AM
Conducted RF immunity EN 61000-4-6 Power port 10 V, 80% AM, 1 kHz; (0.15 – 80) MHz
Ethernet
Status out/Digital in
Serial ports
Earth port
Radiated RF emission CISPR 16-2-3
ANSI C63.4
(FCC Part 15)
Enclosure Class B / DNV bridge
Conducted RF emission CISPR 16-2-1
ANSI C63.4
(FCC Part 15b)
Power port Class B / DNV bridge
Ethernet Class B
Dielectric strength EN 60950-1 Power port to all
other ports
1.5 kVrms, 50 Hz, 1 min
Ethernet ports to all
other ports
RS-232 port to all
other ports
RS-422/485 port to all
other ports

9
6643-2240
Environmental
Temperatures EN 60068-2-1
EN 60068-2-2
Operating –40 to +70°C (–40 to +158°F)*
Storage and transport –50 to +85°C (–58 to +185°F)
Humidity EN 60068-2-30 Operating 5 to 95 % relative humidity
Storage and transport 5 to 95 % relative humidity
Altitude Operating 2 000 m / 70 kPa
MTBF MIL-C217F2,
Parts count
Ground Benign, 25°C
(77°F)
593 000 hours
Service life Operating 10 year
Vibration IEC 60068-2-6
(sine)
Operating 3 – 13.2 Hz: 1mm
13.2 – 100 Hz: 0.7 g
5.5 – 30 Hz: 1.5 g
30 – 50 Hz: 0.42 mm
50 – 500 Hz: 4.2 g**
IEC 60068-2-64
(random)
5 – 20 Hz: 2 m²/s³,
20 – 2000 Hz: – 3 dB/oct
Shock IEC 60068-2-27 Operating 30 g, 11 ms
100 g, 6 ms**
Bump IEC 60068-2-27 Operating 10 g, 11 ms
Packaging
Enclosure EN 60950-1 Zinc Fire enclosure
Dimension W x H x D
With connectors
52.5 x 100 x 101 mm
52.5 x 119 x 101 mm
Weight 0.7 kg
Degree of protection EN 60529 Enclosure IP 40
Cooling Convection
* Refer to “Safety” section in User Guide.
** Might require Ethernet cables to be fastened close to the unit.
Description
L106-S2/L206-S2 is an Industrial switch and device server made for harsh environments.
WeOS is the operating system of L106-S2/L206-S2 enabling the unit to operate in two
functional levels. The switch can be used in either 10 or 100 Mbit networks.
Lynx DSS L106-S2/L206-S2 has two serial ports, one that supports RS-232 and the other
configurable for RS-232/422/485 as well as serial protocols for interconnection with
legacy equipment.
Our unique FRNT (Fast Recovery of Network Topology) technology is the fastest
protocol on the market to re-configure a network in the event of any link or hardware
failure. That is why our equipement are used in safety critical applications such as tunnels,
traffic signal control and railway systems.

10 6643-2240
Interface specifications
Power
Operating voltage Rated: 24 to 48 VDC
Operating: 19 to 60 VDC
Rated current 150 mA (300 mA) @ 24 VDC (with 500 mA USB load)
80 mA (150 mA) @ 48 VDC (with 500 mA USB load)
Rated frequency DC
Inrush current, I2t 22.7·10-3 A2s @ 48 VDC
Startup current* 2 x Rated current
Polarity Reverse polarity protected
Redundant power input Ye s
Isolation to All other
Connection Detachable screw terminal
Conductor cross section 0.2 – 2.5 mm2(AWG 24 – 12)
Stripping length cable 7 mm
Tightening torque, terminal screw 0.5-0.6 Nm
Tightening torque, screw flange 0.3 Nm
Shielded cable Not required
* External supply current capability for proper start-up
Ethernet TX
Electrical specification IEEE std 802.3. 2005 Edition
Data rate 10 Mbit/s, 100 Mbit/s, manual or auto
Duplex Full or half, manual or auto
Circuit type TNV-1
Transmission range Up to 150 m with CAT5e cable or better*
Isolation to All other
Connection RJ-45, auto MDI/MDI-X
Cabling Shielded CAT5e or better is recommended
Conductive housing Ye s
Number of ports 4
* Refer to Safety section.

11
6643-2240
RS-232
Electrical specification EIA RS-232
Data rate 50 bit/s – 115.2 kbit/s
Data format 7 or 8 data bits, Odd, even or none parity, 1 or 2 stop bits
Protocol Transparent, optimised by packing algorithm
Circuit type SELV
Transmission range 15 m / 49 ft
Isolation to All other
Connection RJ-45 according to EIA-561
Shielded cable Recommended
Conductive housing Ye s
Number of ports 1
RS-232/422/485
Electrical specification Configurable for EIA RS-232 or EIA RS-422/485
Data rate RS-232 50 bit/s – 115.2 kbit/s
RS-422/485 50 bit/s – 2 Mbit/s
Data format 7 or 8 data bits, Odd, even or none parity, 1 or 2 stop bits
(2 stop bits only when no parity is set)
Circuit type TNV-1
Transmission range RS-232 15 m / 49 ft
RS-422/485 Up to 1200 m / 0.74 mi, depending on data rate and cable
type
Isolation to All other
Connection RS-232 RJ-45 according to EIA-561
RS-422/485 RJ-45
Shielded cable RS-232 Recommended
RS-422/485 Not required, but recommended in railway installations close
to the rails.*
Conductive housing Ye s
Number of ports 1
* To minimise the risk of interference, a shielded cable is recommended when the cable is located inside 3 m
boundary or the cable is longer than 30 m and inside 10 m boundary to the rails and connected to this port.
I/O / Relay output
Maximum voltage/current 60 VDC / 80 mA
Contact resistance Max 30 Ω
Isolation to All other
Connection Detachable screw terminal
Conductor cross section 0.14 – 1.5 mm2(AWG 28 – 16)
Stripping length cable 7 mm
Tightening torque, terminal screw 0.22 - 0.25 Nm
Tightening torque, screw flange 0.3 Nm

12 6643-2240
I/O / Digital input
Maximum voltage/load current 60 VDC / 2 mA
Voltage levels Logic one: >12V
Logic zero: <1V
Isolation to All other
Connection Detachable screw terminal
Conductor cross section 0.14 – 1.5 mm2(AWG 28 – 16)
Stripping length cable 7 mm
Tightening torque, terminal screw 0.22 - 0.25 Nm
Tightening torque, screw flange 0.3 Nm
USB
Electrical specification USB 2.0 host interface
Data rate Up to 12 Mbit/s (full-speed mode)
Circuit type SELV
Maximum supply current 400 mA
Connection USB receptacle connector type A
Console
Electrical specification LVTTL/LVCMOS-level
Data rate 115.2 kbit/s
Data format 8 data bits, no parity, 1 stop bit, no flow control
Circuit type SELV
Connection 2.5 mm jack, use only Westermo cable 1211-2027

13
6643-2240
Location of interface ports and LEDs
LED Indicators
Power connection
I/O connection
USB
Position Direction Description
No. 1 Out VBUS
No. 2 In/Out D–
No. 3 In/Out D+
No. 4 Out GND
Shield In/Out Connected to protective earth
Ethernet connection TX (4 ports)
Position Signal Direction Description
No.1 TD+ In/Out Transmitted/Received data
No. 2 TD– In/Out Transmitted/Received data
No. 3 RD+ In/Out Transmitted/Received data
No. 4 –Not Connected
No. 5 –Not Connected
No. 6 RD– In/Out Transmitted/Received data
No. 7 –Not Connected
No. 8 –Not Connected
Shield Connected to PE
RJ-45 connector (Front view)
Male Female
Pin 8
Pin 1
Pin 1
Pin 8
Pin 8 Pin 1

14 6643-2240
RS-232
Position Signal Direction Description
No. 1 DSR Out Data Set Ready
No. 2 DCD Out Data Carrier Detect
No. 3 DTR In Data Terminal Ready
No. 4 SG – Signal Ground, not chassis ground
No. 5 RD Out Receive Data
No. 6 TD In Transmit Data
No. 7 CTS Out Clear To Send
No. 8 RTS In Request To Send
RS-422/485 (for more details see below)
Position Signal Direction Description
RS-422
(4-wire)
RS-485
(2-wire)
No. 1 T+ T+/R+ Out/In RS-422: Transmit
RS-485: Transmit/Receive
No. 2 T– T–/R– Out/In RS-422: Transmit
RS-485: Transmit/Receive
No. 3 R– – In RS-422: Receive
No. 4 – – –Not used
No. 5 –– – Not used
No. 6 R+ – In RS-422: Receive
No. 7 – – – Not used
No. 8 – – – Not used
Lynx DSS is equipped with internal termination that is configurable through software
in RS-422/485 mode. The following termination schemes are supported:
RS-422
No termination
Rx
Terminate Rx Terminate Tx
Tx
Rx
Tx
Rx
Tx
Rx
Tx
Terminate Tx and Rx
RS-485
No termination Termination
When the unit is powered-off or during reboot, any internal termination will be
disconnected from the signal lines.
Note: Due to that the port is configurable for both RS-232 and RS-422/485,
there are no fail-safe biasing available for RS-422/485 signals.

15
6643-2240
Connection to console port
The console port can be used to connect to the CLI
(Command Line Interface).
The following steps needs to be taken
1. Connect the serial diagnostic cable to the console port
(use only Westermo cable 1211-2027).
2. Connect cable to your computer (USB port, if drivers are needed they can be downloaded
from our Web page).
3. Use a terminal emulator and connect with correct speed and format (115200, 8N1)
to the assigned port.
For more information about the CLI, see the WeOS management guide.
I/O connection (for details see page 10) Console port
(for details see page 10)
Cable 1211-2027
Bottom view
Accessories
Description Art no
Westermo console cable 1211-2027
RJ45 to terminal block 1200-2490
RJ45 to DB9 cable 1211-2210

16 6643-2240
Power connection
I/O connection
1
2
3
4
4-position Product marking Direction Description
No. 1 +DC1 Input Supply voltage input DC1
No. 2 +DC2 Input Supply voltage input DC2
No. 3 -COM Input Common
No. 4 -COM Input Common
LynxDSS supports redundant power connection. The positive inputs are +DC1 and +DC2, the negative input for
both supplies are –COM. Connect the primary voltage (e.g. +24 VDC) to the +DC1 pin and return to one of the
–COM pins on the power input.
1
2
3
4
4-position Product marking Direction Description
No. 1 Status + Output Alarm relay (status) contact
No. 2 Status – Output Alarm relay (status) contact
No. 3 Digital in + Input Digital in +
No. 4 Digital in – Input Digital in –
The Status output is a potential free, opto-isolated normally closed solid-state relay.
This can be configured to monitor various alarm events within the Lynx DSS unit, see WeOS Management Guide.
An external load in series with an external voltage source is required for proper functionality.
For voltage/current ratings, see Interface Specification section.
The Digital in is an opto-isolated
digital input which can be used to
monitor external events. For volt-
age/current ratings, see Interface
Specification section:
Lynx DSS
External
Load
Status
V
VDigital In
+
1
2
3
4
–

17
6643-2240
LED indicators
LED Status Description
ON OFF Unit has no power.
GREEN All OK, no alarm condition.
RED Alarm condition, or until unit has started up.
(Alarm conditions are configurable, see ''WeOS
Management Guide'').
BLINK Location indicator ("Here I am!"). Activated when
connected to IPConfig Tool, or upon request from
Web or CLI.
DC1 OFF Unit has no power.
GREEN Voltage present on DC1*.
RED Power failure on +DC1.
DC2 OFF Unit has no power.
GREEN Voltage present on DC2*.
RED Power failure on +DC2.
FRNT OFF FRNT disabled.
GREEN FRNT OK.
RED FRNT Error.
BLINK Unit configured as FRNT Focal Point.
RSTP OFF RSTP disabled.
GREEN RSTP enabled.
BLINK Unit elected as RSTP/STP root switch.
USR1 OFF
Configurable, see WeOS Management Guide.GREEN
RED
Rx/TD, TD OFF No serial data received.
GREEN
FLASH
Serial data received.
Tx/RD, RD OFF No serial data transmitted.
GREEN
FLASH
Serial data transmitted.
1 to 4 OFF No Link.
GREEN Link established.
GREEN
FLASH
Data traffic indication.
YELLOW Port alarm and no link. Or if FRNT or RSTP mode,
port is blocked.
* Note: Supply voltage levels must be ensured externally. A green LED may not guarantee a valid
operating voltage level.

18 6643-2240
Mounting
This unit should be mounted on 35 mm DIN-rail, which is horizontally mounted inside an
apparatus cabinet or similar. It is recommended that the DIN-rail is connected to ground.
Snap on mounting, see figure.
Mounting Lynx with integrated DIN-clip:
Removal
Cooling
This unit uses convection cooling.
To avoid obstructing the airflow
around the unit, use the following
spacing rules. Minimum spacing 25 mm
(1.0 inch) above / below and 10 mm
(0.4 inches) left / right the unit.
Spacing is recommended for the use
of unit in full operating temperature
range and service life.
10mm 10mm
Removing Lynx with integrated DIN-clip:
Press down the support at the back of the unit using a screwdriver. See figure.

19
6643-2240
Getting Started
This product runs Westermo Operating System (WeOS) which provides several
management tools that can be used for configuration of the unit.
• IPConfig tool
This is a custom Westermo tool used for discovery of attached Westermo units.
Note! Version of IP Config tool must be 10.4.0 or higher.
• Web
Configuration of the unit using the web browser.
• CLI
Configuration of the unit via the Command Line Interface.
Username: admin
Password: westermo
If the computer is located in the same subnet as the switch you can easily use a web
browser to configure the unit. Within the web you can configure most of the available
functions.
For advanced network settings and more diagnostic information, please use the CLI.
Detailed documentation is available in the chapter ”The Command Line Management
Tool”in the WeOS management guide.
Factory default IP address: 192.168.2.200
Netmask: 255.255.255.0
Gateway: Disabled
Note! If you are not sure about the subnet – consult your network administrator.
Configuration
Configure the unit via Web browser
The unit can easily be configured via a Web browser.
Open the link http://192.168.2.200 in your web browser, and you will be prompted with
a Login screen, where the default settings for Username and Password are:
Username: admin
Password: westermo
Once you have logged in, you can use the extensive integrated help function describing
all configuration options. Two common task when configuring a new switch is to assign
appropriate IP settings, and to change the password of the admin account.
The password can be up to 64 characters long, and should consist of printable ASCII
characters (ASCII 33-126); 'Space' is not a valid password character.

20 6643-2240
Factory default on L106-S2 and L206-S2
It is possible to set the unit to factory default settings by using two straight standard
Ethernet RJ-45 cables.
1. Power off the switch and disconnect all Ethernet cables (copper and fibre).
2. Connect one Ethernet cable between Ethernet ports 1 and 4, and the other between
Ethernet ports 2 and 3.
The ports need to be connected directly by an Ethernet cable, i.e., not via a hub or
switch. Use a straight cable – not a cross-over cable – when connecting the ports.
3. Power on the unit.
4. Wait for the unit to start up. Control that the ON LED is flashing red.
The ON LED flashing indicates that the unit is now ready to be reset to factory
default. You now have the choice to go ahead with the factory reset, or to skip factory
reset and boot as normal.
• Go ahead with factory reset:
Acknowledge that you wish to conduct the factory reset by unplugging the
Ethernet cables. The ON LED will stop flashing.
This initiates the factory reset process*, and the unit will restart with factory default
settings. When the switch has booted up, the ON LED will show a green light, and is
now ready to use.
• Skip the factory reset:
To skip the factory reset process, just wait for approximately 30 seconds
(after the ON LED starts flashing RED) without unplugging the Ethernet cables.
The switch will conduct a normal boot with the existing settings.
*Note Do not power off the unit while the factory reset process is in progress.
Referring documents
Type Description Document number
Management Guide Westermo OS management guide 6101-3201