Digicode 30KHz Indoor Signalling Cables


The cables are designed for transmission of track circuit digicode signals up to 30 kHz in electrified lines.


  • EN 50266-2-4 & IEC 60332-3(Fire performance)
  • EN 50268-2(Smoke density)
  • EN 50267-2-1(Halogen content)
  • EN 50267-2-2(Gases acidity)
  • EN 50265-2-1, IEC 60332-1, NF C 32070 Cat C2 compliant (for PVC sheathed cables)

Cable Construction

Digicode 30KHz Indoor Signalling Cables Railway Cable
Conductors Solid Annealed copper, 1.4 mm nominal diameter (0.6 mm for the auxiliary pair).
Insulation Polyethylene.
Cabling Element Two insulated conductors are twisted together to form a pair.
Stranding Pairs are helically stranded to get the cable core.
Core Wrapping Plastic tape(s) with overlapping.
Inner Sheath Low density polyethylene.
Moisture Barrier Copolymer coated laminated aluminium tape.
Intermediate Sheath LSZH fi re retardant compound. PE or PVC option can be offered upon request.
Mechanical Protection Two helically applied steel tapes.
Outer Sheath LSZH fi re retardant compound. PE or PVC option can be offered upon request.

Electrical Characteristics at 20℃

Nominal Conductor Diameter mm 1.4
Maximum DC Conductor Resistance Ω/km 12.1
Maximum Resistance Unbalance % 3
Minimum Insulation Resistance @500 V DC (1min) MΩ.km 5000
Dielectric Strength (DC voltage 1 min)
Conductor to Conductor V 1000
Conductor to Screen V 3000
Minimum Spark Test On Outer Sheath (AC voltage) V 5000
Maximum Mutual Capacitance (Data pairs) nF/km 45
Nominal Mutual Capacitance (Auxiliary pair) nF/km 50
Maximum Capacitance Unbalance
Pair to Pair nF/500m 400
Pair to Ground nF/500m 1500
Maximum Characteristic Pair Attenuation
@2.1KHz dB/km 0.64
@4.1KHz dB/km 0.76
@9.5KHz dB/km 1.05
@20.7KHz dB/km 1.28
Minimum Near End Crosstalk Attenuation (NEXT)
@4.1KHz dB/km 54
@20.7KHz dB/km 42
Minimum Far End Crosstalk Attenuation (FEXT)
@4.1KHz dB/km 59
@20.7KHz dB/km 48
Minimum Unbalance Attenuation dB 40
Maximum Rated Voltage, between pair conductors V rms 220
Maximum Rated Current A rms 1

Mechanical and Thermal Properties

  • Minimum Bending Radius: 8×OD (static); 16×OD (dynamic)
  • Temperature Range: -40℃ to +60℃ (during operation); -20℃ to +50℃ (during installation)

Dimensions and Weight

Cable Code Number of Pairs Nominal Sheath Thickness Nominal Overall Diameter Nominal Weight
Inner Interm. Outer
    mm mm mm mm kg/km
RS/DIG-2Y2Y(L)HBH-1P1.4 1* 0.7 1.3 1.5 17.9 428
RS/DIG-2Y2Y(L)HBH-2P1.4 2* 0.7 1.3 1.5 19.2 497
RS/DIG-2Y2Y(L)HBH-3P1.4 3 0.7 1.3 1.5 20.2 562