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Twisted-pair brand ParLan intended for external and internal use.

Designed for signaling rates up to 100 MHz (category 5e) in the networking standard ISO/IEC 11801 at an operating voltage to 145 V AC.

Twisted pairs with solid copper conductors with diameter of 0.52 mm.

Design parameters:

  • Nominal insulation diameter - 0.9 mm
  • Outer cable diameter - 5.0 mm
  • Weight of cable - 29,2 g/m

Electrical parameters:

  • The electrical resistance of the circuit (two series-connected pair of conductors) DC at 20°C is not more than 19.0 Ohm/100m
  • Ohmic asymmetry of cores in a working pair at the length of 100 m - less than 2%
  • Electrical resistance of insulation at temperature of 20 ° C. is not less than 5000 Ohm x km
  • Electric capacity pair, no more than 56 pF/m
  • Impedance in the frequency range from 4 to 100 MHz - 100+/-15 Ohm
  • Impedance in the frequency range from 100 to 250 MHz - 100+/-22 Ohm
  • The propagation speed of not less than 60%

Electrical characteristics

Frequency, MHz 1 4 10 16 20 31,2 62,5 100 125
The attenuation coefficient is not more than dB/100m 2,1 4,1 6,5 8,3 9,3 11,7 17 20 24,9
The transitional attenuation on near end (NEXT) is not less than dB/100m 65 56 50 47 46 43 38 35 34

The total transient attenuation at the near end

(PS NEXT) is not less than dB/100m

62 53 47 44 43 40 35 32 31

Transient reduced far-end attenuation

(EL FEXT) is not less than dB/100m

64 52 44 40 38 34 28 24 21

Total transient reduced attenuation at the far end

(PS EL FEXT) is not less than dB/100m

61 49 41 37 35 31 25 21 19
Return loss (RL) is not less than dB 25 23,64 21,54 20,11 19,4
Signal delay time not more than / 100m 570 552 545,4 543 542,1 540,4 538,6 537,6 537,2

Operating conditions:

  • The environment from minus 50°C to plus 70°C
  • Resistant to high humidity - up to 98% at temperatures up to 35°C
  • Laying and installation of cables should be done at temperature not below minus 15°C
  • The minimum allowed bending radius for laying and installation - 8 maximum outer dimensions (diameter) cable

Cables for the inner pads have a certificate of compliance to the requirements of the Federal law "Technical regulations about requirements of fire safety" in terms of requirements to the non-proliferation of burning at a single gasket with the limit distribution of burning PRGO 1 according to GOST R 53315-2009 (PRGO O1 according to GOST R 53315-2009 Rev. 1).

The fire danger class according to the classification GOST R 53315-2009 for cables with PVC sheath - O1.8.2.5.4.

Permissible tensile stress in tension of the cable is not more than 20 N on one pair.

The cable service life - 20 years.

Cables - characteristics:

Cable sort
Twisted pair