Westermo Viper-112A-P8-HV User manual

©Westermo Teleindustri AB
12 port Ethernet M12 switch
with Power over Ethernet
www.westermo.com
User Guide
6641-22501
Viper-12A-PoE
SERIES
FRNT
RSTP
DC
ON
X8
X12
X7
X6
X10
X11
X5
X9
X1
USB
X2
X3
X4
48-110 V
DC
1000BASE-T
M12 Torque 0.6±0,1 Nm / 0,45±0,1 lbft
CON
PoE
FRNT
RSTP
DC
ON
X8
X12
RING
X7
X6
X10
X11
X5
X9
X1
USB
X2
X3
X4
48-110V
DC
M12 Torque 0.6±0,1 Nm / 0,45±0,1 lbft
CON
PoE
FRNT
RSTP
DC
ON
X8
X12
X7
X6
X10
X11
X5
X9
X1
USB
X2
X3
X4
48-110V
DC
1000BASE-T
M12 Torque 0.6±0,1 Nm / 0,45±0,1 lbft
CON
PoE

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Legal information
The contents of this document are provided “as is”. Except as required by applicable law, no warranties of any kind,
either express or implied, including, but not limited to, the implied warranties of merchantability and fitness for a
particular purpose, are made in relation to the accuracy and reliability or contents of this document. 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 http://www.westermo.com
Software tools
Related software tools are available in the folder software tools under technical support on the
Westermo website.
License and copyright for included Free/Libre Open Source Software
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 homepage 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.

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6641-22501
Safety
Before installation:
Read this manual completely and gather all information on the unit. Make sure
that you understand it fully. Check that your application does not exceed the safe
operating specifications for this unit.
This unit should only be installed by qualified personnel.
This unit should be built-in to an apparatus cabinet, or similar, where access is
restricted to service personnel only. The power supply wiring must be sufficiently
fused, and if necessary it must be possible to disconnect manually from all power
supply. Ensure compliance to national installation regulations. This unit relies on
convection cooling. Make sure that it is installed so that the ambient temperature
is within the specified temperature range, e.g. by avoiding obstruction of the
airflow around the unit. Also check chapter EN 45545-2 mounting notes.
The unit has no internal fuse and should be connected via an external fuse. The
fuse should be calculated in accordance with the rated current.
Before mounting, using or removing this unit:
Prevent access to hazardous voltage by disconnecting the unit from all power supply.
WARNING
Do not open connected unit. Hazardous voltage may occur within this unit when
connected to power supply.
Before powering-up, a protective earthing conductor must be connected to the
protective earthing terminal and have a cross-sectional area of at least 1.5 mm².
Note that this unit can be connected to two different power sources.
Be aware of that the surface of this unit may become hot. When this unit is
operated at high temperatures, the External Surface of Equipment may exceed
Touch Temperature Limit according to EN/IEC/UL 60950-1.
To reduce the risk of fire:
1. Use only No. 18 AWG or larger power cable for -LV Viper units
2. Use only No. 21 AWG or larger power cable for -HV Viper units
3. Use only No. 26 AWG or larger telecommunication line cord
Additionally, any cable that is used for Power over Ethernet shall fulfill
requirements specified in IEEE 802.3.
!
!

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Care recommendations
Follow the care recommendations below to maintain full operation of unit and to fulfill
the warranty obligations:
…Do not attempt to dissassemble the unit. There are not any user serviceable
parts inside.
…Do not drop, knock or shake the unit. Rough handling above the specification
may cause damage to internal circuit boards.
…Do not use harsh chemicals, cleaning solvents or strong detergents to clean the
unit.
…Do not expose the unit to any kind of liquid (water, beverages, paint etc),
unless all connectors are connected or fitted with protective caps (delivered
with the unit), tightened to the specified torque. Connected cables must have
the appropriate ingress protection code.
…Do not use or store the unit in dusty or dirty areas, unless all connectors and
the ventilation membrane are sufficiently protected.
…Do not cover or bring mechanical force to the ventilation membrane on the
back of the unit.
If the unit is not working properly, contact the place of purchase, nearest Westermo
distributor office or Westermo Tech support.
Maintenance
No maintenance is required, as long as the unit is used as intended within the specified
conditions.
Environmental protection
Waste electrical products should not be disposed of with household waste. Please
recycle where facilities exist. Check with your local authority or retailer for recycling
advice.

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Agency approvals and standards compliance
Type Approval / Compliance
Climate EN 50155/IEC 60571 class TX, Railway 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 61000-6-2, Immunity industrial environments
EN 61000-6-4, Emission industrial environments
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). Compliant with SBB requirements.
Tested and verified for Class S1, ÖBB Radio compatability in near field in
accordance with ÖBB-Infrastructure Edition 4, Revision 14 (Shunting Radio).
Tested and verified for FCC part 15
Mechanical
(Shock and
vibration)
EN 61373 category 1, class A
EN 60068-2-27 10 g, 30 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
FCC Part 15.105
Notice:
This equipment 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 equipment is operated in a
commercial environment. This equipment generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance with the instruction manual, may
cause harmful inter ference to radio communications. Operation of this equipment in
a residental area is likely to cause harmful interference in which case the user will be
requied to correct the interference at his own expense.

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Westermo Teleindustri AB
Declaration of Conformity
Org.nr/
Postadress/Postal address
Tel.
Telefax
Postgiro
Bankgiro
Corp. identity number
Registered office
S-640 40 Stora Sundby 016-428000 016-428001 52 72 79-4 5671-5550 556361-2604 Eskilstuna
Sweden Int+46 16428000 Int+46 16428001
The manufacturer
Westermo Teleindustri AB
SE-640 40 Stora Sundby, Sweden
Type of product Model
1
12-port managed Ethernet M12 PoE Switch Viper-x12A-P8
12-port managed Ethernet M12 PoE Switch with 3 Gbps ports Viper-x12A-T3G-P8
is in conformity with the following EU directive(s).
No Short name
2014/30/EU Electromagnetic Compatibility (EMC)
2011/65/EU Restriction of the use of certain hazardous substances in electrical and electronic equipment
(RoHS)
References of standards applied for this EU declaration of conformity.
No Title Issue
EN 50121-3-2 Railway applications – Electromagnetic compatibility – Rolling stock -
Apparatus
2015
EN 61000-6-2 Electromagnetic compatibility - Generic standards - Immunity for industrial
environments
2005
EN 61000-6-4 Electromagnetic compatibility - Generic standards - Emission standard for
industrial environments
2007
+A1:2011
EN 50581 Technical documentation for the assessment of electrical and electronic products
with respect to the restriction of hazardous substances
2012
The last two digits of the year in which the CE marking was affixed: 16
Pierre Öberg
Technical Manager
9
th
November 2016
1
Model Differences: x = 1 or 2 and indicates Software Class
Declaration of Conformity

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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 ±2 kV
Earth port ±2 kV
Surge EN 61000-4-5 Power port L-E: ±2 kV, 42Ω, 0.5 μF, 1.2/50 μs
L-E: ±0.5 kV, 12Ω, 9 μF, 1.2/50 μs
L-L: ±2 kV, 42Ω, 0.5 μF, 1.2/50 μs
L-L: ±0.5 kV, 2Ω, 18 μF, 1.2/50 μs
Ethernet ports 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 @ (80 MHz – 2.7 GHz)
10 V/m @ (2.7 – 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 10 V, 80% AM, 1 kHz; (0.15 – 80) MHz
Earth port 10 V, 80% AM, 1 kHz; (0.15 – 80) MHz
Radiated RF emission CISPR 16-2-3 Enclosure Class A (80 – 6000 MHz)
ANSI C63,4
(FCC Part 15)
Class A (80 – 6500 MHz)
Conducted RF emission CISPR 16-2-1 Power port Class A
Ethernet ports Class B
Dielectric strength EN 60950-1 Power port
to all other ports
±2250 VDC, 1 min
Fast Ethernet ports
to all other ports
±2250 VDC, 1 min*
Gbps Ethernet ports
to all other ports
±750 VDC, 1 min
PoE ports
to all other ports
±750 VDC, 1 min
* ±750 VDC after damp heat, according to EN 50155

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Environmental
Temperatures EN 60068-2-1
EN 60068-2-2
Operating –40 to +70°C (–40 to +158°F)**
Storage and transport –55 to +85°C (–67 to +185°F)
Humidity EN 60068-2-30 Operating 5 to 95% relative humidity
Storage and transport 5 to 95% relative humidity
Altitude Operating 2 000 m / 70 kPa
Service life Operating 15 years
MTBF Viper-x12A-P8-HV: 1: 403,000 hours
Viper-x12A-P8-LV: 1: 404,000 hours
Viper-x12A-T3G-P8-HV: 1: 399,000 hours
2: 471,000 hours
Viper-x12A-T3G-P8-LV: 1: 400,000 hours
2: 471,000 hours
1: MIL-C217F2, GB, 25°C (+77°F)
2: IEC 62380
Vibration IEC 60068-2-6
(sine)
Operational 2g rms 5 – 500 Hz, 5 sweeps
IEC 60068-2-64
(random)
Non-operating long
life simulation
11.44 m/s² rms 5 – 150 Hz, 5 hours
Shock IEC 60068-2-27 Operating 10 g, 30 ms, half sine
20 g, 11 ms, saw tooth
Enclosure EN 60950-1 Zinc Fire enclosure
Dimension W x H x D
With connectors
See "Dimensions" chapter for details
Weight 1.7 kg
Degree of protection EN 60529 Enclosure IP67***
Cooling Convection
** Refer to “Safety” section regarding touch temperature
*** Provided all connectors are connected with IP67 cabling or fitted with protective caps (delivered with the unit),
tightened to the specified torque

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Description
Designed for harsh industrial environments
The Viper-12A-PoE series is a series of managed 12 port switches optimised for the needs of the
railway rolling stock market. PoE ports offer effective powering of end-devices and Gbps ports
cope with high bandwidth devices such as access points and NVRs (Network Video Recorders).
The Viper 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 labs certify the compliance to a wide range of
standards, not least EN 50155, where the highest class is achieved in all aspects. 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 on
100 Mbps as well as Gbps ports. 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 is very well suited for
deployment in any other application with severe operating conditions and tough
environments, for instance in the mining industry.
Product models
All switches are managed and have eight PoE ports. Viper x12A-PoE is used when
referring to both models 112A-PoE and 212A-PoE.
Art.no Model Layer Gbps
ports
HV LV
3635-0110 Viper-112A-P8-HV 2 - 48-110 V
3635-0120 Viper-212A-P8-HV 3 - 48-110 V
3635-0210 Viper-112A-P8-LV 2 - 24-38 V
3635-0220 Viper-212A-P8-LV 3 - 24-38 V
3635-0410 Viper-112A-T3G-P8-HV 2 3 48-110 V
3635-0420 Viper-212A-T3G-P8-HV 3 3 48-110 V
3635-0510 Viper-112A-T3G-P8-LV 2 3 24-38 V
3635-0520 Viper-212A-T3G-P8-LV 3 3 24-38 V

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Interface specifications
DC, Power port
Rated voltage Viper-x12A-(TxG)-P8-LV: 24 to 38 VDC
Viper-x12A-(TxG)-P8-HV: 48 to 110 VDC
Operating voltage Viper-x12A-(TxG)-P8-LV: 16.8 to 49,4 VDC
(14.4 to 53.2 VDC for 100 ms)
Viper-x12A-(TxG)-P8-HV: 33.6 to 143 VDC
(28.8 to 154 VDC for 100 ms)
Rated current Viper-x12A-(TxG)-P8-LV: Max 3.7 A at 24 VDC
Max 2.4 A at 38 VDC
Viper-x12A-(TxG)-P8-HV: Max 1.9 A at 48 VDC
Max 0.8 A at 110 VDC
Rated frequency DC
Inrush current, I²t Viper-x12A-(TxG)-P8-LV: 780 mA²s at 24 V, 235 mA²s at 38 V
Viper-x12A-(TxG)-P8-HV: 145 mA²s at 48 V, 65 mA²s at 110 V
Startup current* Viper-x12A-(TxG)-P8-LV: 1.5 A at 16.8 VDC
Viper-x12A-(TxG)-P8-HV: 750 mA at 33.6 VDC
Polarity Reverse polarity protected
Redundant power input No
Isolation to ±2250 VDC to all other ports
Connection Viper-x12A-(TxG)-P8-HV:
4 pin male M12 A-coded connector, use e.g. Westermo cable
3146-1106 for 1.5 m, 3146-1107 for 5 m
Viper-x12A-(TxG)-P8-LV:
4 pin male M12 T-coded connector, use e.g. Westermo cable
3146-1108 for 5 m
Cable size Viper-x12A-(TxG)-P8-HV:
M12, recommended cable area 0.5 mm² (minimum 0.25 mm²),
cable dimensions depend on choice of M12 connector
Viper-x12A-(TxG)-P8-LV:
M12, recommended cable area 1 mm² (minimum 0.75 mm²),
cable dimensions depend on choice of M12 connector
* External supply current capability for proper start-up