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Viper, Managed EN50155 PoE switch--WESTERMO
VIPER-112-P8
     Product Information
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The Viper-112-P8 is a managed 12 port switch designed to meet the full requirements of the rail vehicle market. The Viper is capable of delivering up to 66 W of power across 8 of the ports, derived from the wide operating DC voltage of the unit. 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.
 
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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. A unique feature of this Viper is the galvanic isolation provided between the input DC voltage and the power delivered through PoE to the connected equipment.
 
Westermo understand that systems on railcars are required by the EN50155 standard to have a useful life of 20 years, so as well as using the highest quality components to deliver extended MTBF figures, we also implement features like the Gore-Tex® membrane in the IP65 enclosure to prevent water build up in the units. Due to the high vibration environment of the rail industry, we have also developed the Viper case with integral threading for the M12 connectors to ensure the IP65 seal is maintained for the life of the product.
 
The EN50155 standard requires mandatory performance and isolation testing. Not only does Westermo meet these, we exceed them in order to meet the additional manufacturer requirements for train control. Westermo’s Swedish factory has been building Ethernet switches for the railcar market for many years now and understands the measures that are required to provide the highest quality manufactured solutions.
 

Viper-112-P8

Product description
Status Active
Article number 3641-0580
Ports 12 x 10/100 Mbit/s, Ethernet TX, M12 (8 with PoE capability).
1 x USB.
1 x Console port, RS-232.
Description EN 50155 PoE Switch
Warranty period 5 Years
Standard compliance
Environmental EN 61373:1999
Railway applications – Rolling stock equipment. Shock and vibration tests

IEEE 1478:2001
Environmental conditions for transit rail car electronic equipment

EN 50124-1
Railway applications – Insulation coordination

50121-4
Railway signaling and telecommunications apparatus

EN 50121-3-2:2006
Railway applications –Rolling stock – apparatus

EN 50155:2007
Railway applications – Electronic equipment used on rolling stock

IEC 62236-4
Railway signaling and telecommunications apparatus
Reliability prediction
MTBF, operating 448 000 h (MIL-HDBK-217F (Gb) 25°C)
Service life, operating 15 years
EMC (Electromagnetic Compatibility)
EN 61000-6-1 Immunity residential environments
EN 61000-6-2 Immunity industrial environments
EN 61000-6-4 Emission industrial environments
EN 55022 Emission IT equipment
EN 55024 Immunity IT equipment
FCC part 15 Class A
EMC specifications
EN 61000-4-2, ESD Enclosure:
Contact: ±6 kV
Air: ±8 kV
EN 61000-4-4, fast transients Power port, ±4 kV
Signal ports, ±2 kV
Earth port, ±1 kV
EN 61000-4-5, surge Power port:
L-E: ±0.5 kV, 12 Ω, 9 μF, 1.2/50 μs
L-L: ±0.5 kV, 2Ω, 18 μF, 1.2/50 μs
L-E: ±2 kV, 42 Ω, 0.5 μF, 1.2/50 μs
L-L: ±2 kV, 42Ω, 0.5 μF, 1.2/50 μs
L-E: ±8.4 kV, 100 Ω, 0.05/0.1 μs
L-L: ±8.4 kV, 100 Ω, 0.05/0.1 μs

Ethernet ports:
L-E: ±2 kV, 2 Ω
EN 61000-4-8, power frequency magnetic field Enclosure, 300 A/m; 0, 16.7, 50, 60 Hz
EN 61000-4-9, pulsed magnetic field Enclosure, 300 A/m
EN 61000-4-3, radiated RF immunity Enclosure:
20 V/m @ (80 MHz – 2.7 GHz)
1 kHz sine, 80% AM
EN 61000-4-6, conducted RF immunity 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
EN 55022, radiated RF emission Enclosure, class A
FCC part 15, radiated RF emission Enclosure, class A
EN 55022, conducted emission Power port, class A
Ethernet ports port, class B
Safety
EN 60950-1, dielectric strength Power port to all other ports, 1.5 kV ACrms, 50 Hz, 1 min
Ethernet ports to all other ports, 1.5 kV ACrms, 50 Hz, 1 min
Safety EN 60950-1, IT equipment
Climatic
Temperature, operating –40 to +70°C (–40 to +158°F)
Temperature, storage –50 to +85°C (–58 to +185°F)
Humidity, operating 5 to 95 % relative humidity
Humidity, storage 5 to 95 % relative humidity
Enclosure
Enclosure EN 60950-1, Zinc (front), Aluminum (rear), Fire enclosure
Dimensions (W x H x D) 177 x 100 x 110 mm (6.96 x 3.93 x 4.33 in)
Weight 1.7 kg
Degree of protection IP 65
Cooling Convection
Mechanical
IEC 60068-2-6, vibration IEC 60068-64 (random)
Operating:
5 – 20 Hz, 0.01857 g²/Hz
20 – 150 Hz, –6 dB / oct 5h, 0.8 grms
IEC-60068-2-27, shock IEC 60068-2-27
Operating:
5 g, 30 ms
10 g, 11 ms
100 g, 6 ms
Interface specifications, power
Operating voltage Rated: 48 to 110 VDC
Operating: 48 to 110 VDC ±30%
Operating for 100 ms: 48 to 110 VDC ±40%
Rated current Max 1.8 A @ 48 V
Max 0.8 A @ 110 V
@ full PoE load
Rated frequency DC
Inrush current 21 mA²s @ 48 V
68 mA²s @ 110 V
Startup current 0.3 A @ 48 V
0.15 A @ 110 V
Polarity Reverse polarity protected
Redundant power input Yes
Isolation to 1500 VAC rms to all other
Connection 4 pin male M12 A-coded connector, use Westermo cable
3146-1106 for 1.5 m (4.9 ft)
3146-1107 for 5 m (16.4 ft)
Connector size M12, recommended cable area 0.5 mm² recommended (minimum 0.25 mm²), cable dimensions depend on choice of M12 connector
Interface specifications, 10/100BaseTX
Electrical specification IEEE std 802.3. 2005 Edition
Data rate 10 Mbit/s, 100 Mbit/s, manual or auto
Duplex Full or half, manual or auto
Circuit type X1-X12, Ethernet ports
Circuit type X1-X3, X5-X7, X9-X10: SELV
Circuit type X4, X8, X11, X12: TNV-1
Transmission range Up to 150 m with CAT5e cable or better (non PoE ports only)
Isolation to Other Ethernet ports, 1500 VAC rms (not between PoE ports)
USB and CON, 1500 VAC rms
DC, 1500 VAC rms
Connection 4-pin M12 D-code, auto MDI/MDI-X, use e g Westermo cable
3146-1100 M12-M12 – 1 m (3.3 ft)
3146-1101 M12-M12 – 5 m (16.4 ft)
3146-1103 RJ45-M12 – 1 m (3.3 ft)
3146-1104 RJ45-M12 – 5 m (16.4 ft)
Shielded cable Not required, but recommended in severe electromagnetic environments
Conductive housing Yes
Number of ports 12
Interface specifications, PoE
Electrical specification IEEE std 802.3af, 2003 edition, IEEE std 802.3at, 2009 edition
Transmission range Up to 100 m with CAT5e cable or better
Output voltage 54 VDC, ±5%
Output power Max 30.8 W on one port
Max 61.6 W in total on all ports
Interface specifications, USB
Electrical specification USB 2.0 host interface
Data rate Up to 480 Mbit/s (high-speed mode)
Maximum supply current 500 mA
Circuit type SELV
Isolation to Ethernet ports, 1500 VAC rms
DC, 1500 VAC rms
No isolation to CON
Connection 5-pin M12 female A-code, use Westermo USB plug 3641-0190
Number of ports 1
Interface specifications, console
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 Ethernet ports, 1500 VAC rms
DC, 1500 VAC rms
No isolation to USB
Connection 5-pin M12 female B-code, use Westermo cable 1211-2215

 

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