The RFR-212-FB has been specially designed to allow the creation of a fault tolerant Ethernet backbone structure in trains. The dual bypass relay ensures that aggregated links between carriages are maintained, even if one carriage has a power failure. 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 RFR-212-FB has been externally tested across the com¬plete spectrum of standards required by EN50155.

 

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.

 

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.

 

RFR-12-FB

Product description
Status	Discontinued
Article number	3641-1630
Ports	12 x 10/100 Mbit/s (4 for bypass capability) 1 x 12 Mbit/s USB
Description	Managed EN50155 Backbone Routing Switch
Warranty period	5 Years
EMC (Electromagnetic Compatibility)
EN-50121-3-2	Railway applications – EMC: Rolling stock – Apparatus
EN-50155	Railway applications, Approval/Compliance
EMC specifications
EN 61000-4-2, ESD	Enclosure contact discharge immunity: ±6 kV Enclosure air discharge immunity: ±8 kV
IEC 61000-4-3, RF field AM modulated	Enclosure RF immunity: 20 V/m, 80 – 2700 MHz
EN 61000-4-4, fast transients	Signal port immunity: ±2 kV Power port immunity: ±2 kV
EN 61000-4-5, surge	Power port immunity: ±2 kV (L-E) ±1 kV (L-L)
EN 50155:2001, surge	Power port immunity: ±8.4 kV (L-E) ±8.4 kV (L-L)
EN 61000-4-6, conducted RF immunity	Signal port immunity: 10 V/m 0.15 – 80 MHz Power port immunity: 10 V/m 0.15 – 80 MHz
EN 61000-4-8, power frequency magnetic field	Enclosure immunity: 300 A/m 0, 16.7, 50 Hz
EN 61000-4-9, pulsed magnetic field	Enclosure immunity: 300 A/m
EN-50155, voltage dips and interruption	Residual voltage 0%: 10 ms
EN 50155, supply overvoltage and under voltage	Overvoltage 140%: 100 ms & 1000 ms Residual voltage 60%: 100 ms
EN 55011, Limits: EN 50121-3-2,radiated emsission	Enclosure measurement: 40 dBμV/m QP 30 – 230 MHz 47 dBμV/m QP 230 – 1000 MHz
EN 55011, Limits: EN 50121-3-2, conducted emission	Power port measurement: 99 dBμV QP 0.15 – 5 MHz 93 dBμV QP 5 – 30 MHz Signal port measurement: 99 dBμV QP 0.15 – 5 MHz 93 dBμV QP 5 – 30 MHz
Safety
EN 60950-1, dielectric strength	EN 60950-1, IT equipment
Reliability prediction
MTBF, operating	MIL-HDBK- 217F,operating, 306.000 h
Climatic
Temperature, operating	–40 to +70ºC (–40 to +158ºF)
Temperature, storage	–40 to +70ºC (–40 to +158ºF)
Humidity, operating	5 to 95% relative humidity
Humidity, storage	5 to 95% relative humidity
Maximum surface temperature	-
Enclosure
Dimensions (W x H x D)	175 x 100 x 144 mm (6.88 x 3.93 x 5.66 inch)
Weight	2240 g
Degree of protection	IP 65
Cooling	Convection
Mounting	Rear panel wall mounting
Mechanical
IEC 60068-2-6, vibration	Operating: 7.5 mm, 5 – 8 Hz 2 g, 8 – 500 Hz
IEC 60068-2-64, vibration	Operating: Vertical 1.0 m/s² Transverse 1.0 m/s² Longit. 1.0 m/s²
IEC-60068-2-27, shock	Operating: 15 g 11 ms, 3 x 6 chocks
Interface specifications, power
Rated voltage	24 to 110 VDC
Operating voltage	16.8 to 143 VDC
Rated current	580 mA @ 24 VDC 140 mA @ 110 VDC
Inrush current	5 mA²s @ 24 VDC 22 mA²s @ 110 VDC
Startup current	600 mA @ 24 VDC 275 mA @ 110 VDC (Power source capability)
Polarity	Reverse polarity protected
Redundant power input	No
Isolation to	All interfaces and chassis
Galvanic connection to	None
Connection	M12 A-coded male
Connector size	0.2 – 2.5 mm² (AWG 24 – 13)
Shielded cable	Not required
Interface specifications, 10/100BaseTX
Electrical specification	IEEE std 802.3. 2000 Edition
Data rate	IEEE std 802.3. 2000 Edition
Protocol	-
Duplex	Full or half, manual or auto
Circuit type	SELV
Transmission range	100 m / 328 ft
Isolation to	All interfaces and chassis
Galvanic connection to	None
Connection	M12 D-coded
Shielded cable	Yes. Should also be separated from EMI disturbers
Conductive housing	Yes
Miscellaneous	-
Number of ports	12
Interface specifications, USB
Electrical specification	USB
Data rate	12 Mbit/s
Protocol	USB v2.0
Connection	M12 A-coded female
Isolation to	All interfaces, but not to chassis