Managed Industrial Ethernet Switch - Industrial Networking Solution

Managed Industrial Ethernet Switch – VIPER-408


The Viper 408 is a product family of rugged Managed Industrial Ethernet switches designed for applications with severe operating conditions and extreme environments. The Westermo ethernet switch Viper meets the EN 50155 standard for electronic equipment used in railway applications. The super slim and extra robust housing is sealed to IP 65 and together with an MTBF (Mean Time Between Failure) calculated to more than a 100 years makes these units ideal for situations where mechanical stress, moisture, condensation, dirt or continuous vibrations could adversely affect the function of standard Ethernet switches. This line of products includes two eight-port managed and one unmanaged Ethernet switches with or without ring functionality.

Our unique FRNT (Fast Recovery of Network Topology) technology on Viper 408 is the fastest protocol on the market to re-configure a large network in the event of any failure of a link or hardware. That is why the Viper-series is used in safety critical applications such as railway systems, tunnels and traffic signal control.

Real-time properties are implemented in order to achieve determinism for real time critical applications. The switches support QoS (Quality of Service) with four priority queues and strict priority scheduling as well as HoL (Head of Line Blocking Prevention). All to ensure that the data network is deterministic.

Back to Managed Industrial Ethernet Switches

• Product Description
Status Active
Article number 3641-0360
Ports 8 x 10/100BaseTX, M12 contact
Description Ultra slim M12 switch platform
• EMC specifications
EN 61000-4-2, ESD Enclosure contact, ± 6 kV (crit A)
Enclosure air, ± 8 kV (crit A)
IEC 61000-4-3, RF field AM modulated Enclosure:
20 V/m 80% AM (1 kHz)
80 – 2500 MHz (crit A)
EN 61000-4-4, fast transients Ethernet ports, ± 2 kV (crit A)
Power port, ± 2 kV (crit A)
Earth port, ± 2 kV (crit A)
EN 61000-4-5, surge Fault port, ± 2 kV line to earth (crit A)
Ethernet ports, ± 2 kV line to earth (crit A)
Ethernet ports, ± 2 kV line to earth (crit A)
EN 61000-4-6, conducted RF immunity Ethernet ports, 10 V 80% AM (1 kHz), 0.15 – 80 MHz (crit A)
Power port, 10 V 80% AM (1 kHz), 0.15 – 80 MHz (crit A)
EN 61000-4-8, power frequency magnetic field Enclosure:
1000 A/m 50 Hz
300 A/m 16.7 Hz, 60 Hz, DC (crit A)
EN 61000-4-9, pulsed magnetic field Enclosure, 300 A/m (crit A)
EN-50155, voltage dips and interruption DC power ports:
10 ms, interruption (crit A)
100 ms +- 40 % above/below rated voltage (crit A)
EN 55022, radiated RF emission Enclosure, Class B
FCC part 15, radiated RF emission Enclosure, Class B
EN 55022, conducted emission DC power port & Ethernet ports, Class B
FCC part 15, conducted emission DC power port, Class B
• EMC (Electromagnetic Compatibility)
EN 61000-6-1 Immunity residential environments
EN 61000-6-2 Immunity industrial environments
EN 55024 Immunity IT equipment
EN 61000-6-3 Emission residential environments
EN 61000-6-4 Emission industrial environments
EN-50121-3-2 Railway applications – EMC: Rolling stock – Apparatus
FCC part 15 Class B
EN 50121-4 Railway signalling and telecommunications apparatus
IEC 62236-4 Railway signalling and telecommunications apparatus
• Safety
Safety EN 60950-1, IT equipment
EN 60950-1, dielectric strength Ethernet ports to other isolated ports, 707 VDC 1 min
• Reliability prediction
MTBF, operating MIL-HDBK- 217F, operating:
Ground Benign:
103 years @ 20ºC
100 years @ 40ºC
90 years @ 60ºC
Ground Mobile:
5.92 years @ 20ºC
5.91 years @ 40ºC
5.88 years @ 60ºC
Service life, operating Operating, 10 years
• Climatic
Temperature, operating –40 to +70°C (–40 to +158°F)
Temperature, storage –40 to +70°C (–40 to +158°F)
Humidity, operating 5 to 95 % relative humidity
Humidity, storage 5 to 95 % relative humidity
• Enclosure
Enclosure UL 94, Nickel coated zinc, flammability class V-1
Dimensions (W x H x D) 175 x 100 x 50 mm
Weight 0.8kg
Degree of protection IP 65 when all ports are protected/connected else IP 40
Cooling Convection
Mounting Wall mounted
• Mechanical
Vibration, random simulated long life Vertical: 7.9 m/s2
Transverse: 7.9 m/s2
Longitudinal: 7.9 m/s2
3 x 5 h
Vibration, random functional Vertical: 1.0 m/s2
Transverse: 1.0 m/s2
Longitudinal: 1.0 m/s2
3 x 10 min
Shock, half sine pulses Vertical: 50 m/s2
Transverse: 50 m/s2
Longitudinal: 50 m/s2
30 ms, 3 x 6 shocks
Shock, sawtooth Vertical: 100 m/s2
Transverse: 100 m/s2
Longitudinal: 100 m/s
211 ms, 3 x 6 shocks
• Interface specifications, power
Operating voltage Up to 110 VDC
Rated voltage 24 to 110 VDC
Rated current 30 mA @ 110 VDC
90 mA @ 24 VDC
Rated frequency DC
Inrush current Max 0.02 A2s @ 24 – 110 VDC
Startup current 7 Apeak @ 24 – 110 VDC
Polarity Reverse polarity protected
Redundant power input No
Isolation to Connections X1 – X8 and to ground, 1500 VAC.
Fault relay belongs to the same isolation group as the power supply lines (fault relay signals are also contained within PWR).
Fault relay resistance < 10 Ω
Connection 4 pin male M12 connector with A-code
Connector size M12, recommended cable area 0.5 mm2 recommended (minimum 0.25 mm2), cable dimensions depend on choice of M12 connector
Shielded cable Not required, twisted pair is recommended
Operating voltage Up to 110 VDC
Max continuous current 250 mA
• Interface specifications, 10/100BaseTX
Electrical specification IEEE std 802.3. 2005 Edition
Data rate 10 Mbit/s or 100 Mbit/s
Duplex Full or half, manual or auto
Circuit type TNV-1
Transmission range 100 m / 328 ft
Isolation to Other Ethernet ports, 500 VAC
PWR, 1500 VAC
Galvanic connection to None, except for shielded contact to housing
Connection 4-pole M12 female with D-code
Shielded cable Not required, twisted pair is recommended
Conductive housing Nickel plated zinc, metal housings of X1-X8 also connected to the housing
Number of ports 8 Ethernet (X1-X8

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