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MVB (Multifunction Vehicle Bus) Cables

MVB (Multifunction Vehicle Bus) Cables

Application

The cables are designed for transmission of digital signals under baud rate of 10M inside of rolling stock to

connect fi xed parts. The communication system in a locomotive uses a wire backed bus system to the TCN

standard for control and instrumentation and for diagnostics. This bus system consists of the rail bus WTB

(Wired Train Bus) and the road bus MVB (Multifunction Vehicle Bus) which are connected via redundant

gateways.

Standards

DIN 5510-1

Construction

Conductors

Stranded tinned copper conductor according to IEC 60228 class 5.

Insulation

0.6mm foam/foam sk in P E (for 0. 5sqm m cond uctor ), 0. 2mm PE ( for 0.25sqmm conductor).

Core Wrapping

Plastic tape(s).

EMC Screen

Tinned copper braid.

Outer Sheath

Cross-linked oil resistant LSZH compound.

Electrical Characteristics at 20℃

Nominal Cross Section mm² 0.5
Maximum Conductor Resistance Ω/km 41
Impedance@0.5-2MHz Ω 120+/-12
Maximum Attenuation @1.5MHz dB/km 17
Maximum Attenuation @3MHz dB/km 25
Maximum Transfer Impedance mΩ/m 20
Nominal Voltage Rating V 300

Mechanical and Thermal Properties

Minimum Bending Radius:6×OD (single); 10×OD (multiple)

Temperature Range:-40℃ to +90℃ (during operation);

                                -20℃ +50℃ (during installation)

Dimensions And Weight

Nominal  Cross-
Sectional Area

Number & Nominal   Nominal
Nominal
Diameter  of      Overall  Weight
Strands  Diameter

Max.
Conductor       Impedance
Resistance

Max.Transfer Impedance

Max.Attenuation

 

@1.5MHz       @3MHz

20 °C     @0.75-3MHz

f<=20MHz

mm2

No/mm

mm

kg/km

Ω/km

Ω

mΩ/m

dB/km

dB/km

0.5 / 0.25

19/0.18(0.5)  7/0.2(0.25)

7.9

95

41

120+/-12

20

17

25