Viper Unmanaged & Managed Ethernet Switch

To meet the growing demand for reliable onboard railway communications networks, Westermo has introduced a new generation of industrial Ethernet switches that provide highly robust networks and long term field operation. Specifically designed for onboard applications around the “Westermo IP train concept”, the new Viper-212, Viper-112 and Viper 012 twelve-port switches, deliver a complete solution for onboard control systems, including improved levels of reliability and simplified network design, installation and maintenance.

The Westermo IP train concept provides a complete EN50155 Ethernet switch and routing solution providing an ultra-reliable network backbone for the creation of intelligent trains. This concept has been developed in answer to the many unique requirements of the rail industry which can be solved using a suite of IP protocols delivered by the Westermo Operating System - WeOS.

Onboard rolling stock applications present one of the toughest environments for any electronic device. The Viper series exceeds the EN 50155 onboard railway standard for electronic equipment, which encompasses not only EMC requirements, but also shock, vibration, extended temperature range and humidity. The switches have also been designed to achieve the highest mean time between failures of up to 900,000 hours, ensuring the extremely long-term and reliable field operation that is expected within the railway industry.

The Viper 212 is a managed layer 3 routing switch, The Viper 112 offers managed layer 2 switching functionality and the Viper 012 is an unmanaged solution. These different levels of software functionality allow users to select the most appropriate level of functionality for their network whilst still having hardware that meets the toughest environmental challenges.

The new Viper series incorporates M12 connectors that are integrated into the housing to reduce size and further protect against vibration. With an ultra-robust design, sealed to IP65 and vibration resistant to military standards, these units are ideal for situations where mechanical stress, moisture, condensation; dirt or continuous vibrations (such as those produced by engine) could adversely affect the function of standard Ethernet switches. A unique Gore-Tex membrane is used to prevent condensation build up by normal climatic day/night cycling. The Viper-212 is also very compact and ultra-thin, enabling installation within the confined spaces of railcar panels.

The WeOS operating system of the Viper and RedFox switches is able to balance data traffic on the network to maintain maximum throughout and stability. The introduction of increased traffic from new cameras or video stream will therefore not affect the stability of the entire network. In the event of any link or hardware failure Westermo’s unique FRNT technology is able to re-configure a large network in 20ms.

For easy configuration, the Ethernet switches can be safely accessed from anywhere in the network, or directly via a console port on the Viper switch or an Ethernet or USB port on the RedFox switch. The configuration can be backed up and restored in seconds using a using a special M12 USB memory stick. An easy to use, secure web configuration interface simplifies the setting up of a redundant ring network.

Viper 012 Unmanaged Ethernet Switch / Viper 112 / 212 Managed Ethernet Switch
	Features Include: SNMP management facility Wide DC power range - 24 – 110 VDC +/- 30% (16.8 VDC to 143 VDC) Redudant Power No moving parts or electrolytic capacitors Sealed to IP65 Gor-tex membrane (allows unit to breath) USB Port EN 50155 approved plus many other standards (view data sheets) M12 Connectors WeOS IGMP, FRNT, LACP, VRRP, OSPF (Viper 212) -40 C to 70 C (Cold start @ -40 C)
The Viper-012 is a basic unmanaged 12 port switch designed to meet the full requirements of the rail vehicle market. The incredibly compact and robust housing ensures the unit can be built into tight and environmentally hostile spaces. As is critical for all equipment to be installed in rail vehicles, the Viper has been externally tested across the complete spectrum of standards required by EN50155. The Viper-112 is a managed 12 port switch designed to meet the full requirements of the rail vehicle market. The incredibly compact and robust housing ensures the unit can be built into tight and environmentally hostile spaces. The Westermo WeOS operating system provides an extensive suite of IP networking standards allowing resilient and flexible networks to be created, meeting the needs of the rail market. The Viper-212 is a managed 12 port routing switch designed to meet the full requirements of the rail vehicle market. The incredibly compact and robust housing ensures the unit can be built into tight and environmentally hostile spaces. The Westermo WeOS operating system provides an extensive suite of IP networking standards allowing resilient and flexible networks to be created, meeting the needs of the rail market.
Downloads:	Possible Configurations:
Viper x12- Manual (1.86MB pdf) Viper 012- Data Sheet (722KB pdf) Viper 112- Data Sheet (745KB pdf) Viper 212- Data Sheet (745KB pdf) Management Guide - (8.46MB pdf) Viper Firmware WeOS 4.8 (16.67MB zip) Application Article - Railway (462KB pdf)
Part Number Description List Price (1 pc) Purchase Viper-012 12 x 10/100 Base TX Unmanaged Ethernet Switch with M12 Connection $1,374.00 Viper-112 12 x 10/100 Base TX Layer 2 Managed Ethernet Switch with M12 Connection $1,914.00 Viper-212 12 x 10/100 Base TX Layer 3 Managed Ethernet Switch with M12 Connection $2,694.00 USB-M12 USB Backup device with M12 connector $198.00  Contact ESI to assist in specifying product and for quantity pricing.

In severe operating conditions and applications where dirt and moisture, mechanical stress and vibrations affect the function of a standard Ethernet switch, this new ultra slim and extra robust switch from Westermo will hold. The strong metal housing is sealed to IP65 and MTBF is calculated to more than a 100 years. The Viper is designed to meet the EN 50155 railway standard as well as harsh industrial environments.

The Viper series is a family of two 8-port switches with different function levels. Both switches are fully managed with Real-time properties 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. The more advanced unit, Viper 408, has even more features and can be used for building redundant rings with a 20 ms reconfiguration time using Westermo patented FRNT technology. STP and RSTP are also supported.

The units are well prepared for use in harsh industrial environments. The IP65 sealed metal case and rugged M12 front connectors of the unit make it robust and allows for the surrounding air temperature to be between –40 to +70°C. There are no sensitive or fragile components, hardening the product against shock and vibration making these units suitable for rolling stock usage. The power supply operates over a wide input range from 24 to 110 VDC.

Viper 008 Robust Unmangaged Ethernet Switch
	Features Include: SNMP management facility Wide DC power range (24 – 110 VDC) No moving parts or electrolytic capacitors Ultra low power consumption (3,5W) Sealed to IP65 EN 50155 approved M12 Connectors
The Viper 008 is an ultra slim and extra robust Ethernet switch designed for the most severe operating conditions. This switch provides high availability, reliability and safety with a rugged housing sealed to IP65 together with a MTBF (Meantime Between Failure) calculated to more than a 100 years. The DIN-mounted case allows for the surrounding air temperature to be between -40 to 70°C and the power input allows for a extensive operating voltage range of 24 to 110 VDC. The construction of the units has gone through extensive testing by Westermo and approved test houses. The Viper series have worldwide on-board approvals for rolling stock applications.
Downloads:	Possible Configurations:
Viper - Manual (1MB pdf) Viper - Data Sheet (841KB pdf) Viper White Paper (757KB pdf) Viper Reference Guide (845KB pdf) Viper Firmware (2.54MB zip) Application Article - Railway (462KB pdf)
Part Number Description List Price (1 pc) Purchase Viper-008 8 x 10/100 Base TX Ethernet Switch with M12 Connection $1,433.00  Contact ESI to assist in specifying product and for quantity pricing.
Viper 408 Robust Managed Ethernet Switch w/ Redundant Ring Support
	Features Include: SNMP management facility 20 ms reconfiguration of redundant ring using proven & patented FRNT Technology Up to 200 switches supported in ring Wide DC power range (24 – 110 VDC) No moving parts or electrolytic capacitors Ultra low power consumption (3,5W) Suitable for building consist- or cross-consist redundant rings Sealed to IP65 EN 50155 approved M12 Connectors
The Viper 408 is an ultra slim and extra robust Ethernet switch designed for the most severe operating conditions. The Fast Re-configuration of Network Topology (FRNT) concept offers super fast reconfiguration (30 ms) in case of a network failure. This switch provides high availability, reliability and safety with a rugged housing sealed to IP65 together with a MTBF (Meantime Between Failure) calculated to more than a 100 years. The DIN-mounted case allows for the surrounding air temperature to be between -40°C to 70°C and the power input allows for a extensive operating voltage range of 24 VDC to 110 VDC. The construction of the units has gone through extensive testing by Westermo and approved test houses. The Viper series have worldwide on-board approvals for rolling stock applications.
Downloads:	Possible Configuration:
Viper - Manual (1MB pdf) Viper - Data Sheet (841KB pdf) Viper White Paper (757KB pdf) Viper Reference Guide (845KB pdf) Viper Firmware (2.54MB zip) Application Article - Railway (462KB pdf)
Part Number Description List Price (1 pc) Purchase Viper-408 8 x 10/100 Base TX Ethernet Switch Redundant Ring / M12 $2,000.00  Contact ESI to assist in specifying product and for quantity pricing.
Comparison of Viper 408
How does the Viper 408 Managed Ethernet Switch compare with others in the industry?
Westermo Moxa Part Number Viper-408 TN5508-LV-LV-T Number of Switches 8 8 Connection Type M12 M12 EN50155 Yes Yes IP Rating IP65 IP54 Operating Temperature -40 to +70C -40 to +70C Unit Price $2000.00 $2499.00
What do the IP ratings mean? They are a combination of numbers that indicate level of protection against solids and liquids. The first number represents the level of protection against solid materials. The second number represents the level of protection against liquids. The table below provides definitions for each number in relation to each class of material. We will apply the ratings for the Viper 408 and Moxa TN5508-LV-LV-T in order to provide understanding for this comparison: Viper 408 - IP65 (Solid Protection = Totally protected against dust; Liquid Protection = Protected against low pressure jets if water from all directions - limited ingress permitted) Moxa TN5508-LV-LV-T = IP54 (Solid Protection = Protected against dust - limited ingress (no harmful deposit); Liquid Protection = Protected against sprays from all directions - limited ingress permitted) By the standards provided below, the Viper 408 provides superior protection for demanding enviroments.
1st Number (Solids) Definition of Protection 2nd Number (Liquids) Definition of Protection 0 No protection 0 No protection 1 Protected against solids objects over 50mm (e.g. accidental touch by hands 1 Protected against vertically falling drops of water 2 Protected against solids objects over 12mm (e.g. fingers) 2 Protected against direct sprays up to 15o from the vertical 3 Protected against solids objects over 2.5mm (e.g. tools and wires) 3 Protected against direct sprays up to 60o from the vertical 4 Protected against solids objects over 1mm (e.g. tools, wires and small wires 4 Protected against sprays from all directions - limited ingress permitted 5 Protected against dust - limited ingress (no harmful deposit) 5 Protected against low pressure jets if water from all directions - limited ingress permitted 6 Totally protected against dust 6 Protected against strong jets of water e.g. for use on shipdecks - limited ingress permitted     7 Protected against the effects of temporary immersion between 15cm and 1m. Duration of test 30 minutes     8 Protected against long periods of immersion under pressure

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