| Cable type | PROFINET railway applications |
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| Cable type (abbreviation) | 939 |
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| Signal type/category | PROFINET CAT5 (IEC 11801), 100 Mbps |
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| Cable structure | 1x4xAWG22/7; SF/TQ |
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| Conductor cross section | 4x 0.34 mm² |
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| AWG signal line | 22 |
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| Conductor structure signal line | 7x 0.25 mm |
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| Core diameter including insulation | 1.4 mm ±0.1 mm |
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| Wire colors | white-blue, orange-yellow |
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| Overall twist | Star quad |
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| Shielding | Aluminum-lined polyester foil, tinned copper braided shield |
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| External sheath, color | black |
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| Outer sheath thickness | 1 mm |
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| External cable diameter D | 6.6 mm ±0.2 mm |
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| Minimum bending radius, fixed installation | 5 x D |
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| Minimum bending radius, flexible installation | 6 x D |
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| Tensile strength GRP | ≤ 60 N (temporary) |
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| ≤ 15 N (Permanent) |
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| Cable weight | 71 kg/km |
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| Outer sheath, material | PE-X |
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| Material conductor insulation | Cell PE |
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| Conductor material | Tin-plated Cu litz wires |
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| Insulation resistance | ≥ 5 GΩ*km |
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| Conductor resistance | ≤ 54.4 Ω/km |
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| Cable capacity | 44 nF/km (core-core) |
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| Wave impedance | 100 Ω ±5 Ω (f = 100 MHz) |
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| Near end crosstalk attenuation (NEXT) | 76 dB (with 1 MHz) |
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| 71 dB (at 4 МHz) |
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| 64 dB (at 10 MHz) |
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| 60 dB (at 16 MHz) |
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| 56 dB (at 31.25 МHz) |
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| 52 dB (at 62.5 МHz) |
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| 48 dB (at 100 MHz) |
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| 45 dB (at 155 MHz) |
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| 42 dB (at 200 MHz) |
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| Power-summated near end crosstalk attenuation (PSNEXT) | 73 dB (with 1 MHz) |
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| 68 dB (at 4 МHz) |
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| 61 dB (at 10 MHz) |
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| 57 dB (at 16 MHz) |
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| 53 dB (at 31.25 МHz) |
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| 49 dB (at 62.5 МHz) |
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| 45 dB (at 100 MHz) |
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| 42 dB (at 155 MHz) |
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| 39 dB (at 200 MHz) |
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| Attenuation | 1.5 dB (with 1 MHz) |
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| 3.3 dB (at 4 МHz) |
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| 5.3 dB (at 10 MHz) |
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| 6.9 dB (at 16 MHz) |
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| 9.9 dB (at 31.25 МHz) |
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| 14.5 dB (at 62.5 МHz) |
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| 18.8 dB (at 100 MHz) |
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| 23.6 dB (at 155 MHz) |
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| 27.3 dB (at 200 MHz) |
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| Return loss (RL) | 25 dB (with 1 MHz) |
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| 25 dB (at 4 МHz) |
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| 28 dB (at 10 MHz) |
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| 28 dB (at 16 MHz) |
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| 27 dB (at 31.25 МHz) |
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| 26 dB (at 62.5 МHz) |
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| 25 dB (at 100 MHz) |
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| 25 dB (at 155 MHz) |
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| 23 dB (at 200 MHz) |
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| Signal speed | 0.75 c |
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| Signal runtime | 4.4 ns/m |
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| Shield attenuation | 60 dB (up to 1000 MHz) |
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| Coupling resistance | < 13.00 mΩ/m (f = 1 MHz) |
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| < 8.00 mΩ/m (f = 10 MHz ... 100 MHz) |
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| Cable impedance | 100 Ω ±15 Ω (f = 0.5 MHz ... 3 MHz) |
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| Nominal voltage, cable | 125 V |
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| Test voltage Core/Core | 1000 V AC (50 Hz, 1 min.) |
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| Test voltage Core/Shield | 1000 V AC (50 Hz, 1 min.) |
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| Fire protection in rail vehicles | BS 6853 (Internal cable Ia, Ib, II/external cable Ia, Ib, II) |
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| DIN 5510-2 (Fire protection level 1, 2, 3, 4) |
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| EN 45545-2 (Risk level HL1 - HL3) |
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| EN 50306-4 |
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| NF F16-101 (Classification C/F1) |
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| NF F16-101 (Internal cable A1, A2, B/external cable A1, A2, B) |
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| NFPA 130 |
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| PN-K-02511 |
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| UIC 564-2 (Class A) |
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| Flame resistance | according to EN 60332-1-2 |
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| according to EN 50266-2-5 |
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| according to ISO 14572 5.21 (UN ECE-R 118.01) |
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| Halogen-free | According to EN 50267-2-1 |
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| according to EN 60684-2 |
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| Resistance to oil | according to EN 60684-2, 72 h at 100 °C, IRM 902 |
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| Other resistance | Resistant to fuel according to EN 60684-2, 72 h at 100 °C, IRM 903 |
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| Resistant to ozone according to EN 50306-4, 72 h at 40 °C, procedure B, volume concentration 200 x 10-6 |
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| Concentration of fumes | EN 61034-2 |
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| Ambient temperature (operation) | -40 °C ... 85 °C (cable, fixed installation) |
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| -25 °C ... 70 °C (cable, flexible installation) |
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