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