Westermo Viper-20A Series: Managed Gigabit Ethernet Switch Router

Key Features

• Compact 20-port industrial switch router, approved for rolling stock
• 20 x 100 Mbit/s ports or 4 x 1 Gbit/s ports + 16 x 100 Mbit/s ports
• Unique model with a 24 to 110 VDC power supply range (±30 %)
• Designed for extreme operating environments
• Optimized design for enhanced robustness
• Numerous approvals from certified IEC/ISO 17025 laboratories
• Swedish quality engineering and production centre
• Proven Westermo WeOS network operating system
• Powerful set of protocols and functions, including Layer 3 routing, DHCP (server and client), and VRRP
• High level of cybersecurity
• Very simple to use

Technical Specifications

Dimensions and Weight

• Dimensions (W x H x D): 178 x 160 x 61 mm
• Weight: 1.7 kg
• Housing: All-metal

Power and Environment

• Nominal voltage: 24 to 110 VDC
• Service voltage: 16.8 to 143 VDC (14.4 VDC for 100 ms and 154 VDC for 1 s)
• Power disconnection: Class S2 (10 ms hold-up time)
• Operating temperature: -40 to +70°C (+85°C for a limited time)
• Storage and transport temperature: -55 to +85 °C
• Protection: IP67
• Humidity (operating): 5 to 95% relative humidity, in operation, storage, and transport
• Altitude: 2000 m / 80 kPa

Current Consumption

• Max at 24 VDC: 670 mA
• Max at 110 VDC: 160 mA

Interface

MTBF

Approvals and Compliance

Climate

• EN 50155 class OT4 / IEC 60571 class TX, Railway applications - Electronic equipment used on railway rolling stock
• IEEE 1478 class 1, condition E4 (including salt mist), Environmental conditions for transit vehicle electronic equipment

EMC

• EN/IEC 61000-6-2, Immunity in industrial environments
• EN/IEC 61000-6-4, Emission in industrial environments
• EN 50121-4/IEC 62236-4, Railway signalling and telecommunications equipment
• EN 50121-3-2/IEC 62236-3-2 Railway applications - Rolling stock equipment
• Tested and Verified for Class 1, directive 06 EMC DB, Radio compatibility VDB Rev 1.0 (Shunting Radio)
• Tested and verified for FCC part 15b, class A (CFR 47)
• E-Mark, road vehicles, E1 10R-058942

Mechanical (shock and vibration)

• EN 61373 category 1, classes A and B
• EN 60068-2-27 20 g, 11 ms and 100 g, 6 ms

Isolation (coordination and test)

• EN 50124-1, Railway applications - Insulation coordination
• EN 50155/IEC 60571, Railway applications - Electronic equipment used on railway rolling stock

Fire Protection

• EN 45545-2, Fire protection in railway vehicles
• NFPA130, Fire protection for railway transport and passenger systems

Software

• EN 50657:2017 Embedded software for rolling stock (Basic Integrity)
• EN/IEC/UL 61010-1, -2-201, Safety rules for electrical equipment for measurement, control, and laboratory use

Software and Warranty

Software

• WeOS
• WeConfig
• WeOS4: https://www.westermo.com/solutions/weos
• WeConfig: https://www.westermo.com/solutions/weconfig

Warranty

• Validity: 5 years

Product References and Accessories

Product References

Accessories

• 3641-0190: USB M12 configuration backup device
• 3641-7190: USB M12 configuration backup device with fixing cable
• 3146-11xx: Connection and power cables, see www.westermo.fr
• 1211-4073: Console cable
• WeConfig: https://www.westermo.fr/products/software/weconfig

WeOS 4: Operating System Features

Westermo has developed the WeOS operating system for its current and future Ethernet product range. This Layer 2 and Layer 3 switching solution enables Westermo to create complex ring and routing solutions. WeOS provides solutions for numerous complex industrial network problems, while also protecting investments by ensuring future compatibility of solutions. At the core of our latest Ethernet hardware ranges, WeOS enables the creation of complex ring and routing solutions.

Westermo benefits from extensive experience in developing products for industrial applications. All Westermo network solutions are developed with ergonomics in mind. The use of a single operating system for all Westermo Ethernet products simplifies the installation, use, and maintenance of individual equipment and entire networks. Once a user is familiar with one Westermo product, they can immediately apply that knowledge to all our other equipment. A web page facilitates the configuration of numerous functions, while a command-line interface allows for precise adjustment.

WeOS integrates unique features that allow Westermo solutions to offer integration of existing equipment. WeOS also allows Westermo to offer a unique range of network security solutions, including high-performance inspection firewalls and the IEEE 802.1X standard. Secure remote access can be provided via encrypted VPN tunnels. The administration manual “WeOS Management Guide, 6101-3201” (in English) presents the numerous functions that can be configured.

WeOS Standard - Layer 2 Protocols and Functionalities

Reliability and high availability

• Flexible ring topologies FRNTv0/v2 (multiple rings, sub-rings, and ring coupling), multiple links “Dual Homing”, media redundancy protocol IEC 62439-2 (MRP)ª, link aggregation protocol IEEE 802.1AX/802.3ad (LACP and static), Spanning Tree Protocol IEEE 802.1D (STP) and Rapid Spanning Tree Protocol IEEE 802.1w (RSTP)

Layer 2 Switching

• “Tagged” VLAN and static VLAN IEEE 802.1Q, VLAN Q-in-Q tunnelling, VLAN transparency, flow control IEEE 802.3x, IGMPv2/v3 snooping, adaptive VLAN path (AVT) management VLAN, static multicast MAC filters, Spanning Tree Protocol IEEE 802.1AB Link Layer Discovery (LLDP)

Layer 2 QoS

• IEEE 802.1p Class of Service, ingress rate limiting, egress rate shaping

Layer 2 Security

• Port Access Control IEEE 802.1X, MAC authentication, IP/MAC address conflict detection, port auto-disablement

Administration

• WeConfig, Web interface (HTTP and HTTPS), Command Line Interface (CLI) via console port, SSHv2 and Telnet, local and central user authentication (RADIUS and TACACS+), SNMPv1/v2c/v3. Secure copy (SCP), USB configuration and backupb, BOOTP client, flexible alarm/event management system, Syslog (logs on RAM/USB and remote syslog server), digital I/O, port monitoring, NTPv4 client/server, DHCP client (including options 60 and 61), DHCP server (including options 1, 3, 6, 7, 12, 15, 42, 61, 66, 67, 82, 121 and 249), DHCP relay agent (including options 54 and 82), DDNS

SNMP MIB Support

• RFC1213 MIB-2, RFC 2819 RMON MIB, interface MIB RFC 2863, RFC 3411 SNMP Framework MIB, sensor entity MIB RFC 3433, RFC 3635 Power Ethernet MIB, entity MIB RFC 4133, bridge MIB RFC 4188, RFC4318 RSTP MIB, RFC4363 Q-BRIDGE MIB, RFC4836 MAU MIB, IEEE 802.1AB LLDP MIB, IEEE 802.1AX LAG MIB, IEC 62439-2, MRPa., UCD SNMP MIB, WESTERMO-WEOS MIB, WESTERMO-FRNT MIB, WESTERMO-INTERFACE MIB

ª Available as a supplementary feature. Please contact your local Westermo sales representative to purchase a license for your product.

b. Available on products equipped with USB ports.

WeOS Extended - Layer 3 Protocols and Functionalities

IP Routing, Cybersecurity, and VPN

• Static IP routing, floating static routes, dynamic IP routing (OSPFv2, RIPv1/v2), VRRPv2/v3, static multicast routing, high-performance inspection firewalls, Modbus firewall (DPI), NAT, 1-to-1 NAT, proxy ARP for 1-to-1 NAT, port forwarding, DSCP/TOS modification, IPsec VPN (IKEv1 certificates and PSK failover, ESP, VPN), SSL VPN (client and server, local and central authentication with RADIUS, address pool and CN address, TLS authentication, WeConnect), GRE, Multinetting

SNMP MIB Support

• RFC 2787 VRRPv2 MIB, RFC 6527 VRRPv3 MIB

ª Products equipped with WeOS Extended include all functionalities listed for the WeOS standard.