 |
||||||||||
 |
Railway 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- |
Number & Nominal Nominal |
Max. |
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 |