westermo Viper 20A Series 20 Port Ethernet M12 Switches User Manual

Viper 20A Series
20 port Ethernet M12 switches

General Information

1.1. Legal Information
The contents of this document are provided “as is”. Except as required by applicable law, no warranties of any kind are made in relation to the accuracy and reliability or contents of this document, either expressed or implied, including but not limited to the implied warranties of merchantability and fitness for a particular purpose. Westermo reserves the right to revise this document or withdraw it at any time without prior notice.
Under no circumstances shall Westermo be responsible for any loss of data or income or any special, incidental, and consequential or indirect damages howsoever caused.
More information about Westermo can be found at www.westermo.com.
1.2. About This Guide
This guide is intended for installation engineers and users of the Westermo products.
It includes information on safety and regulations, a product description, installation instructions and technical specifications.
1.3. Software Tools
Related software tools are available at www.westermo.com/support/software- tools.
1.4. License and Copyright for Included FLOSS
This product includes software developed by third parties, including Free/Libre Open Source Software (FLOSS). The specific license terms and copyright associated with the
software are included in each software package respectively. Please visit the product web page for more information.
Upon request, the applicable source code will be provided. A nominal fee may be charged to cover shipping and media. Please direct any source code request to your normal sales or support channel.
1.5. WeOS Management Guide
This product runs WeOS 4 (Westermo Operating System). Instructions for quick start, configuration, factory reset and use of USB port are found in the WeOS Management Guide at www.westermo.com.

Safety and Regulations

2.1. Warning Levels
Warning signs are provided to prevent personal injuries and/or damages to the product.
The following levels are used:

Level of warning| Description| Consequence personal injury| Consequence material damage
---|---|---|---

WARNING

| Indicates a potentially hazardous situation| Possible death or major injury| Major damage to the product

CAUTION

| Indicates a potentially hazardous situation| Minor or moderate injury| Moderate damage to the product

NOTICE

| Provides information in order to avoid misuse of the product, confusion or misunderstanding| No personal injury| Minor damage to the product

NOTE

| Used for highlighting general, but important information| No personal injury| Minor damage to the product

Table 1. Warning levels

2.2. Safety Information
Before installation:
Read this manual completely and gather all information available on the product. Make sure it is fully understood. Check that your application does not exceed the safe operating specifications for the product.

WARNING – SAFETY DURING INSTALLATION
The product must be installed and operated by qualified service personnel and installed into an apparatus cabinet or similar, where access is restricted to service personnel only.
During installation, ensure a protective earthing conductor is first connected to the protective earthing terminal (only valid for metallic housings). Westermo recommends a cross-sectional area of at least 4 mm2.
Note that this product can be connected to two different power sources.
Upon removal of the product, ensure that the protective earthing conductor is disconnected last.
WARNING – HAZARDOUS VOLTAGE
Do not open the connected product. Hazardous voltage may occur within this product when connected to power supply.
WARNING – PROTECTIVE FUSE
The power supply wiring must be sufficiently fused. The fuse must be IEC 60127 certified and rated for T1.6 A and 250 V.
It must be possible to disconnect manually from the power supply. Ensure compliance to national installation regulations.
This product has no internal fuse and should be connected via an external fuse for protection.
WARNING – REDUCE THE RISK OF FIRE
To reduce the risk of fire, use only telecommunication line cords with a cable diameter of AWG 26 or larger. Regarding power cable dimensions, see Interface Specifications.

CAUTION – CABLE TEMPERATURE RATING FOR FIELD TERMINAL WIRES
There may be a requirement on the minimum temperature rating of the cable to be connected to the field wiring terminals, see Interface Specifications.
CAUTION – ELECTROSTATIC DISCHARGE (ESD)
Prevent electrostatic discharge damage to internal electronic parts by discharging your body to a grounding point (e.g. use a wrist strap).
CAUTION – HOT SURFACE
Be aware that the surface of this product may become hot. When it is operated at high temperatures, the external surface may exceed Touch Temperature Limit according to the product’s relevant electrical safety standard.
This product complies with Touch Temperature Limits throughout its operational temperature range.

NOTE – MECHANICAL FORCE ON VENTILATION MEMBRANE
Do not cover or bring mechanical force to the ventilation membrane on the back of the product.

2.3. Care Recommendations
Follow the care recommendations below to maintain full operation of the product and to fulfill the warranty obligations:

• Do not drop, knock or shake the product. Rough handling above the specification may cause damage to internal circuit boards.
• Use a dry or slightly water-damp cloth to clean the product. Do not use harsh chemicals, cleaning solvents or strong detergents.
• Do not paint the product. Paint can clog the product and prevent proper operation.

If the product is used in a manner not according to specification, the protection provided by the equipment may be impaired.
If the product is not working properly, contact the place of purchase, the nearest Westermo distributor office or Westermo technical support.

2.4. Product Disposal
This symbol means that the product shall not be treated as unsorted municipal waste when disposing of it. It needs to be handed over to an applicable collection point for recycling electrical and electronic equipment.
By ensuring the product is disposed of correctly, you will help to reduce hazardous substances and prevent potential negative consequences to both the environment and human health, which could be caused by inappropriate disposal.

Figure 1. WEEE symbol for treatment of product disposal

2.5. Compliance Information
2.5.1. Agency Approvals and Standards Compliance

applications – Electronic equipment used on rolling stock
•  IEEE 1478 class 1, condition E4 (incl Salt Mist), Environmental conditions for transit rail car electronic equipment
EMC| •  EN/IEC 61000-6-2, Immunity industrial environments
•  EN/IEC 61000-6-4, Emission industrial environments
•  EN 50121-4/IEC 62236-4, Railway signalling and telecommunications apparatus
•  EN 50121-3-2/IEC 62236-3-2 Railway applications – Rolling stock – apparatus
•  Tested and verified for Class S1, DB EMC Regulation 06, Commodity team Radio compatibility in VDB Rev 1.0 (Shunting Radio)
•  Tested and verified for FCC part 15b class A (CFR 47)
•  E-Mark, Road Vehicles, E1 10R-058547
Mechanical (Shock and vibration)| •  EN 61373 category 1, class A and B
•  EN 60068-2-27 20 g, 11 ms and 100 g, 6 ms
Insulation (Coordination and test)| •  EN 50124-1, Railway applications – Insulation coordination
•  EN 50155/IEC 60571, Railway applications – Electronic equipment used on rolling stock
Fire protection| •  EN 45545-2, Fire protection on railway vehicles
•  NFPA 130, Fire protection for fixed guideway transit and passenger rail system

Table 2. Agency approvals and standards compliance

2.5.2. FCC Part 15.105 Class A Notice
This product has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against harmful interference when the product is operated in a commercial environment.
This product generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the user manual, may cause harmful interference to radio communications. Operation of this product in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at the users own expense.
2.5.3. Simplified Declaration of Conformity
Hereby, Westermo declares that this product is in compliance with applicable EU directives and UK legislations. The full declaration of conformity and other detailed information is available at www.westermo.com/support/product- support.

**** Figure 2. The European Conformity and the UK Conformity Assessment markings

Product Description

3.1. Product Description
The Viper-20A series consists of of managed 20 port routing switches optimised for the needs of the railway rolling stock market. Gbps ports cope with high bandwidth devices such as access points and NVRs (Network Video Recorders).
The Viper-20A series is designed to withstand the tough environment on-board trains, exposing the switch to constant vibration, extreme temperatures, humidity and a demanding electrical environment.
A GORE-TEX® membrane prevents internal condensation. Threading integrated in chassis provides for additional vibration resistance. High-level isolation between all interfaces enables direct connectivity to vehicle auxiliary power and protects against overvoltage and flashover. IP67 protection prevents ingress of water and dust. An overall optimised design results in an extremely compact package in combination with very high MTBF for easy integration and low lifecycle cost.
Thorough type testing at independent ISO/IEC 17025 and ILAC MRA certified labs, accredited to a wide range of standards, show that the Viper series fulfills EN 50155 and other requirements. The state-of-the-art Westermo production facility ensures the quality of each individual unit, e.g. through temperature cycling burn-in testing.
The WeOS operating system offers an extensive suite of IP networking features for resilient and flexible networks, e.g. the FRNT ring protocol with very fast failover. The powerful layer 3 routing capability is very useful for separating networks in complex applications. The backup device accessory matches the Viper in robustness and offers easy configuration update and backup.
Meeting the requirements of the railcar market, the Viper-20A series is very well suited for deployment in any other application with severe operating conditions and tough environments, for instance in the mining industry.
3.2. Available Models
All switches are managed. Viper x20A is used when referring to both models 120A and 220A.

Table 3. Available Viper-x20A models

3.3. Hardware Overview

Figure 3. Location of interface ports and LED indicators

3.4. Connector Pinout

Viper-x20A supports redundant power connection. The positive inputs are +DC1 and +DC2. The negative input for both supplies is -COM

Table 4. Power connector

No Connect. Do not connect.
Table 5. Console connector

a No Connect. Do not connect.
Table 6. USB connector

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2| RD+
3| TD-
4| RD-
MDI, MDI-X and auto MDI/MDI-X modes are supported. The table shows signals in MDI mode.

Table 7. 100 Mbps Ethernet connector

Table 8. Gbps connector

3.5. LED Indicators

configurable, see WeOS Management Guide)
BLINK| Location indicator (“Here I am!”). Activated when connected to WeConfig tool, or upon request from web or/and CLI. RED BLINK during boot indicates pending cable factory reset.
RSTP| OFF| RSTP disabled
GREEN| RSTP enabled
BLINK| Product selected as RSTP/STP root switch
FRNT| OFF| FRNT disabled
GREEN| FRNT OK
RED| FRNT error
BLINK| Product configured as FRNT focal point
DC| OFF| Product has no power
GREEN| Power OK on DC1 and DC2
RED| Power failure on DC1 or DC2
X1 to X20| OFF| No link
GREEN| Link established
GREEN FLASH| Data traffic indication
YELLOW| Port alarm, or port is set in blocking state by link redundancy protocol

Table 9. LED indicators

3.6. Dimensions
Dimensions are stated in mm.

Installation

4.1. Wall Mounting
The product can be wall mounted vertically or horizontally. There are four pieces of 7 mm bores for this. Use four M5, M6 or 1/4″ screws with 12 mm washers on a flat and stable surface.

4.2. Protective Earth Connection
For correct function, the earth connection needs to be properly connected to a designated PE rail. See the figure below.

4.3. Connection of Cables
Recommended tightening torque for the M12 connectors is 0.6 Nm. All M12 connections are screw connections.
When connecting the power cable, ensure that the pins are connected correctly before tightening the power cable to the unit.

WARNING – PROTECTIVE FUSE
The power supply wiring must be sufficiently fused. The fuse must be IEC 60127 certified and rated for T1.6 A and 250 V.
It must be possible to disconnect manually from the power supply. Ensure compliance to national installation regulations.
This product has no internal fuse and should be connected via an external fuse for protection.

NOTE – UNUSED CONNECTORS
Unused connectors must be covered by a protective cap (delivered with the product), tightened to the specified torque in order to fulfill the specified ingress protection code.

4.4. Cooling
This product relies on convection cooling. Make sure that it is installed so that the ambient temperature is within the specified temperature range. Avoid obstruction of the airflow around the product.
4.5. Replacement of Product
Disconnect all cables and unscrew the product from the wall. Mount the replacement product and reconnect all cables, observing the instructions in Connection of Cables [16].
For easy replication of the configuration of the original product, it is recommended to have the Westermo USB plug permanently connected to the USB port and move it over to the replacement product before it is powered up.
MTTR (Mean Time To Repair), i.e. time for replacement of product is: < 15 minutes.

CAUTION – HOT SURFACE
Be aware that the surface of this product may become hot. When it is operated at high temperatures, the external surface may exceed Touch Temperature Limit according to the product’s relevant electrical safety standard.
This product complies with Touch Temperature Limits throughout its operational temperature range.

4.6. EN 45545-2 Mounting Notes
Two product can be mounted together and as a single interior non-listed group in the sense of EN 45545-2 definitions. For multiple product, the spacing requirements for interior non-listed groups must be met.

Specifications

5.1. Interface Specifications

DC, Power port

Rated voltage a| 24 to 110 VDC
Operating voltage b| 16.8 to 143 VDC (14.4 to 154 VDC for 100 ms)
Rated current| Max 670 mA at 24 VDC, max 160 mA at 110 VDC
Rated frequency| DC
Inrush current, I²t| Viper-x20 units: 100 mA²s at 24 VDC, 140 mA2s at 110 VDC
Viper-x20-T4G units: 110 mA2s at 24 VDC, 140 mA2S at 110 VDC
Startup current c| Max 1,37 A at 16.8 VDC
Polarity| Reverse polarity protected
Redundant power input| Yes
Isolation| To all other ports
Circuit type| Secondary circuit hazardous voltage, OVC II
Connector| 4-pin, male, M12, A-coded, recommended Westermo cables: 3146-1106 for 1.5 m
3146-1107 for 5 m
Cable size| M12, recommended power cable area 0.5 mm² (minimum 0.25 mm²), which correlates to AWG 21 or larger Cable dimensions depend on choice of M12 connector
Cable temperature rating| For minimum temperature rating of the cable to be connected to the field wiring terminals: -40 to +70 °C

a Also referred to as nominal voltage in EN/IEC 61010-1
b Also referred to as nominal input including fluctuations in EN/IEC 61010-1
c Recommended external supply current capability for proper startup

100 Mbps ports a

Electrical specification| IEEE std 802.3
Data rate| 10 Mbps, 100 Mbps, manual or auto
Duplex| Full or half, manual or auto
Circuit type| TNV-1
Transmission range| Up to 150 m with CAT5e cable or better
Isolation| 2250 VDC to all other portsb
Connector| 4-pin, female, M12, D-coded, auto MDI/MDI-X, recommended Westermo cables:
3146-1100 M12-M12 – 1 m
3146-1101 M12-M12 – 5 m
3146-1103 RJ45-M12 – 1 m
3146-1104 RJ45-M12 – 5 m
Shielded cable| Shielded cable CAT5e or better is recommended
Conductive chassis| Yes
FRNT reconfiguration time| Typically below 20 ms

a 100 Mbps ports are:
X1-X20 on Viper-x20A
X1-X5, X9-X13, X15-X20 on Viper-x20A-T4G
b 750 VDC after damp heat, according to EN 50155

Gbps ports a

Electrical specification| IEEE std 802.3
Data rate| 10 Mbps, 100 Mbps, 1000 Mbps, manual or auto
Circuit type| TNV-1
Transmission range| Up to 150 m with CAT5e cable or better
Isolation| 2250 VDC to all other portsb
Connector| 8-pin, female, M12, X-coded
Shielded cable| Shielded cable CAT5e or better is recommended
Conductive chassis| Yes
FRNT reconfiguration time| Typically below 20 ms

a Gbps ports are: X6-X8, X14 on Viper-x20A-T4G
b 750 VDC after damp heat, according to EN 50155

USB port

Electrical specification| USB 2.0 host interface
Data rate| Up to 480 Mbps (high-speed mode)
Maximum supply current| 500 mA
Circuit type| SELV
Isolation| To all Ethernet and DC ports
No isolation to CON or protective earth
Connector| 5-pin, female, M12, A-coded, recommended Westermo USB plug 3641-0190
Console port

Electrical specification| RS-232
Data rate| 115.2 kbit/s
Data format| 8 data bits, no parity, 1 stop bit, no flow control
Circuit type| SELV
Isolation| To all Ethernet and DC ports
No isolation to USB or protective earth
Connector| 5-pin, female, M12, B-coded, recommended Westermo cables: 1211-2215 (serial port) or 1211-4073 (USB)

5.2. Type Tests and Environmental Conditions

Environmental phenomena| Basic standard| Description| Test levels
---|---|---|---
ESD| EN 61000-4-2| Enclosure| Contact: ±6 kV Air: ±8 kV
Fast transients| EN 61000-4-4| Power port| ± 2 kV
Signal ports
Earth port
Surge| EN 61000-4-5| Power port| L-E: ± 2 kV, 42 Ω, 0.5 µF, 1.2/50 µs L-E: ± 0.5 kV, 12 Ω, 9 µF, 1.2/50 µs L-L: ± 2 kV, 42 Ω, 0.5 µF, 1.2/50 µs L-L: ± 0.5 kV, 2 Ω, 18 µF, 1.2/50 µs
Ethernet port| L-E: ± 2 kV, 2 Ω
Pulsed magnetic field| EN 61000-4-9| Enclosure| 300 A/m
Radiated RF immunity| EN 61000-4-3| Enclosure| 20 V/m at (80 MHz to 2 GHz)

10 V/m at (2-6 GHz)

1 kHz sine, 80% AM

Conducted RF immunity| EN 61000-4-6| Power port| 10 V, 80% AM, 1 kHz; (0.15-80) MHz
Ethernet ports
Earth port
Radiated RF emission| CISPR 16-2-3| Enclosure| EN 61000-6-4 (30-6000 MHz)
ANSI C63,4 (FCC Part 15)| EN 61000-6-4 (30-6500 MHz)
Conducted RF emission| CISPR 16-2-1| Power port| EN 61000-6-4
Ethernet ports| EN 61000-6-3
Dielectric strength| EN 60950-1| Power port to all other ports| 2250 VDC, 1 min
Ethernet ports to all other ports| 2250 VDC, 1 mina
Gbps Ethernet ports to all other ports| 2250 VDC, 1 mina

a 750 VDC after damp heat, according to EN 50155
Table 10. EMC and electrical conditions

Environmental phenomena| Basic standard| Description| Test levels
---|---|---|---
Temperatures| EN 60068-2-1

EN 60068-2-2

| Operational| -40 to +70°C (-40 to +158°F)ab
Storage and transport| -55 to +85°C (-67 to +185°F)
Humidity| EN 60068-2-30| Operational| 5-95% relative humidity
Storage and transport
Altitude| | Operational| 2000 m
Service life| | Operational| 20 years according to IEC/TR 62380
MTBF| MIL-217F2, GB, 25°C (+77°F)| | Viper-x20A: 530,500 h
Viper-x20A-T4G: 522,000 h
Vibration| IEC 60068-2-6 (sine)| Operational| 2 g rms 5-500 Hz, 5 sweeps
IEC

60068-2-64

(random)

| Non-operational long life simulation| 11.44 m/s² rms 5-150 Hz, 5 hours
2.3 m/s² rms 5-2000 Hz, 5 hours
Shock| IEC

60068-2-27

| Operational| 10 g, 30 ms, half sine
20 g, 11 ms, saw tooth
100 g, 6 ms, half sine
Weight| | | 1.6 kg
Degree of protection| EN 60529| Enclosure| IP67
Cooling| | | Convection
Overvoltage category| EN/IEC 61010-1| | OVC II
Pollution degree| EN/IEC 61010-1| | PD3 macro environment and PD2 micro environmentc
EN 50124-1| | PD2
Location| EN/IEC 61010-1| | Outdoor, wet locations
IEEE 1478| | Class 1, condition E4. Indoor

a Refer to “Safety and Regulations” chapter regarding touch temperature
b Operational at +85°C for a limited time
c Installation and maintenance shall be made under controlled environments.
Table 11. Environmental and mechanical conditions

Revision Notes

the user guide, 2.2 Safety Information – various warnings updated in accordance with General and Information Safety manual, 2.3 Care Recommendations, text updated, old chapter 2.4 Maintenance deleted, 2.5.1. Agency Approvals and Standards Compliance updated, 2.5.3 Simplified Declaration of Conformity; text and figure updated, 3.1. Product Description updated, 3.4. Connector Pinout, illustration for table 5 updated, 3.6. Dimensions, illustration updated, 4.2. Earth connection chapter added, 5.1. Interface Specifications updated (all tables), 5.2 Type Tests and Environmental Conditions updated (Altitude updated, Enclosure deleted, Overvoltage category added, Pollution degree added and Location added).
Rev. G| 2020-1| 2.6.1 Agency Approvals and Standards Compliance – references to SBB requirements and ÖBB removed.
Rev. F| 2019-09| 2.6.1 Agency Approvals and Standards Compliance updated with E-mark
Rev. E| 2019-06| Front page updated, 1.3 Software Tools text updated, 2.2 Safety Information: Notice – Mechanical force on ventilation membrane new information, 2.3 Care Recommendations text updated, 4.4 Replacement of Product text updated
Rev. D| 2018-12| 2.2 Safety Information updated with specific symbol for Caution – Hot surface, and text in Notice – Connect external fuse, 2.5 Environmental Protection updated to Product disposal, 2.6.3 Declaration of Conformity updated to Simplified Declaration of Conformity, 3.3 Hardware Overview table updated, 4.2 updated with Notice – Connect external fuse, 4.4 symbol for Caution – Hot surface updated, 5.1 Interface specification updated with inrush current, 5.2 Type Tests and Environmental Conditions – enclosure updated, end page updated
Rev. C| 2017-09| 2.6.1 Mechanical data updated, 3.6 Dimensional drawing updated, 5.1 Transmission range for Gbps ports updated, 5.2 Radiated + Conducted RF emission updated, Enclosure updated
Rev. B| 2017-07| New chapter (2.1 Warning levels chapter), Shock and NFPA 130 updated (2.6.1 Agency approvals updated), text updated (3.1 Product description), inrush current updated (5.1 Interface specifications), service life, shock and operating temperature updated (5.2 Type Tests and environmental conditions).
Rev. A| 2017-05| First issue of user guide

Westermo • Metallverksgatan 6, SE-721 30 Västerås, Sweden
Tel +46 16 42 80 00 Fax +46 16 42 80 01
E-mail: info@westermo.com
www.westermo.com

References

• Westermo ᐅ Robust and Secure Industrial Networking Solutions
• Product support, user guides and software downloads ᐅ Westermo
• Legacy Software Tools ᐅ Westermo
• Product support, user guides and software downloads ᐅ Westermo

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