Managed EX approved Ethernet switch


Lynx 110 EX is a layer 2 managed industrial Ethernet switch, powered by the Westermo WeOS network operating.
Independently tested for IECEX and ATEX by Baseefa, as well as Class 1 Division II by FM approval, Lynx is the perfect
solution for hazardous area applications in any part of the world.

Lynx is the most compact and has the lowest power requirements in this class of switch. Lynx has 8 10/100 Mbit/s ports in
addition to 2 ports which can be fitted with Gbit or 100 Mbit SFP transceivers.

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Only industrial grade components are used which gives Lynx an MTBF of 630,000 hours and ensures a long service life. A
wide operating temperature range –40 to +70°C (–40 to +158°F) can be achieved with no moving parts or cooling
holes in the case. Lynx has been tested both by Westermo and external test houses to meet many EMC, isolation,
vibration and shock standards, all to the highest levels suitable for heavy industrial environments and rail trackside

WeOS has been developed by Westermo to allow us to offer cross platform and future proof solutions. WeOS can
deliver 20 ms ring recovery performance even for networks with video or EtherNet/IP traffic. For EX approved
transceivers and more WeOS functionality please see the transceiver and WeOS datasheets.


Technical data


Product description
Article number3643-5100
Ports8 x RJ-45, 10 Mbit/s, 100 Mbit/s, Ethernet TX. 
2 x Ethernet SFP 100 Mbit/s or 1000 Mbit/s pluggable connections (FX or TX) transceivers supported.
1 x Digital I/O. 
1 x 2.5 mm jack, console.
DescriptionManaged EX approved Ethernet Switch
Warranty period5 Years
MarineDNV Standard for Certification no. 2.4
Hazardous locationsEN 60079-0 and EN 60079-15
Reliability prediction
MTBF, operating630 000 h (MIL-HDBK-217F (Gb) 25°C)
EMC (Electromagnetic Compatibility)
EN 61000-6-1Immunity residential environments
EN 61000-6-2Immunity industrial environments
EN 61000-6-4Emission industrial environments
EN 55022 +A1Emission IT equipment
EN 55024Immunity IT equipment
FCC part 15Class A
EN 50121-4Railway signalling and telecommunications apparatus
IEC 62236-4Railway signalling and telecommunications apparatus
EMC specifications
EN 61000-4-2, ESDContact: ±6 kV
Air: ±8 kV
EN 61000-4-4, fast transientsPower port, ±2 kV
Signal ports, ±2 kV
Earth port, ±1 kV
EN 61000-4-5, surgePower port
L-E: ±0.5 kV, 12 Ω, 9 μF
L-L: ±0.5 kV, 2 Ω, 18 μF
L-E: ±2 kV, 42 Ω, 0.5 μF
L-L: ±2 kV, 42 Ω, 0.5 μF
L-E: ±2 kV, 12 Ω, 9 μF
L-L: ±1 kV, 12 Ω, 9 μF

Signal ports
L-E: ±1 kV, 2 Ω
L-E: ±2 kV, 42Ω, 0.5 μF
EN 61000-4-8, power frequency magnetic field300 A/m; 0, 16.7, 50 Hz
EN 61000-4-9, pulsed magnetic field300 A/m
EN 61000-4-3, radiated RF immunity10 V/m @ (80 – 800) MHz
20 V/m @ (800 – 1000) MHz
10 V/m @ (1400 – 2100) MHz
5 V/m @ (2100 – 2500) MHz
1 V/m @ (2500 – 2700) MHz
1 kHz sine, 80% AM
EN 55022, radiated RF emissionClass A
FCC part 15, radiated RF emissionClass A
EN 55022, conducted emissionPower port, Class B
Signal ports, Class B
EN 61000-4-6, conducted RF immunityPower port, 10 V, 80% AM, 1 kHz; (0.15 – 80) MHz
Signal ports, 10 V, 80% AM, 1 kHz; (0.15 – 80) MHz
Earth port, 10 V, 80% AM, 1 kHz; (0.15 – 80) MHz
SafetyUL/IEC/EN 60950-1, IT equipment
EN 60950-1, dielectric strengthPower port to all other ports, 1.5 kVrms, 50 Hz, 1 min
Signal ports to all other ports, 1.5 kVrms, 50 Hz, 1 min
Temperature, operating–40 to +70°C (–40 to +158°F)
Temperature, storage–50 to +85°C (–58 to +185°F)
Humidity, operating5 to 95 % relative humidity
Humidity, storage5 to 95 % relative humidity
Dimensions (W x H x D)52.5 x 100 x 101 mm (With connectors 52.5 x 119 x 101 mm)
Weight0,7 kg
Degree of protectionIP 40
IEC-60068-2-27, shock30 g, 11 ms
100 g, 6 ms
IEC 60068-2-6, vibration3 – 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 60068-2-27, bump10 g, 11 ms
Interface specifications, power
Operating voltageRated: 24 to 48 VDC
Operating: 19 to 60 VDC
Rated current240 mA @ 24 VDC
120 mA @ 48 VDC
Rated frequencyDC
Inrush current22.7·10-3 A2s @ 48 VDC
Startup current2 x Rated current
PolarityReverse polarity protected
Redundant power inputYes
Isolation toAll other
ConnectionDetachable screw terminal
Connector size0.2 – 2.5 mm2 (AWG 24 – 12)
Shielded cableNot required
Interface specifications, 10/100BaseTX
Electrical specificationIEEE std 802.3. 2005 Edition
Data rate10 Mbit/s, 100 Mbit/s, manual or auto
DuplexFull or half, manual or auto
Circuit typeTNV-1
Transmission rangeUp to 150 m with CAT5e cable or better
Isolation toAll other
ConnectionRJ-45, auto MDI/MDI-X
Shielded cableNot required, except when installed in Railway applications as signalling and telecommunications apparatus and located close to rails.
Conductive housingYes
Number of ports8
Interface specifications, 100/1000SFP
Optical/Electrical specificationIEEE std 802.3. 2005 Edition
Data rate100 Mbit/s or 1000 Mbit/s transceivers supported
DuplexFull or Auto, depending on transceiver
Transmission rangeDepending on tranceiver
ConnectionSFP slot holding fibre transceiver or copper transceiver
Number of ports1 or 2
Interface specifications, I/O relay output
Maximum voltage / current60 VDC / 80 mA
Connect resistanceMax 30 Ω
Isolation toAll other
ConnectionDetachable screw terminal
Connector size0.2 – 2.5 mm2 (AWG 24 – 12)
Interface specifications, I/O Digital output
Maximum volt / current60 VDC / 2 mA
Voltage_levelsLogic one: >12V
Logic zero: <1V
Isolation toAll other
ConnectionDetachable screw terminal
Connector size0.2 – 2.5 mm2 (AWG 24 – 12)
Interface specifications, console
Electrical specificationTTL-level
Data rate115.2 kbit/s
Data format8 data bits, no parity, 1 stop bit, no flow control
Circuit typeSELV
Connection2.5 mm jack, use only Westermo cable 1211-2027



Protocols and functionality
Resiliency and high availabilityFast Reconfiguration of Network Topology (FRNT)
FRNT ring coupling
Multilink dual homing
IEEE 802.1D (STP) and IEEE 802.1w (RSTP)
IEEE 802.1AX/802.3ad Link Aggregation
Layer 2 switchingIEEE 802.1Q Static VLAN and VLAN Tagging
IEEE 802.3x Flow Control
IGMPv2/v3 snooping
AVT Dynamic VLAN (Adaptive VLAN Trunking)
Management VLAN (Management Interface concept)
Static Multicast MAC filters
Layer 2 QoSIEEE 802.1p Class of Service
Layer 2 securityIEEE 802.1X Port Access Control
MAC Authentication
ManageabilityManagement tools
• Web interface (HTTP and HTTPS or CLI (SSHv2 or Telnet)
• SNMPv1/v2c/v3
• Flexible management of configuration and log files
Flexible alarm/event handling system
USB Fluid configuration (Available for products with USB port)
Digital I/O and Flexible alarm/event handling system
Syslog (log files and remote syslog server)
Port Monitoring
SNTP (NTP client)
PPPoE client
DHCP client
DHCP server including option 82
DHCP relay agent including option 82
SNMP MIB supportRFC1213 MIB-2
RFC2863 Interface MIB (ifXTable)
RFC2819 RMON MIB (etherStatsTable)
RFC4188 Bridge MIB
RFC4133 Entity MIB (entityPhysical)
RFC3433 Entity Sensor MIB
RFC3621 Power Ethernet MIB


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Managed EX approved Ethernet switch