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 PCM Cables
100 Ω/120 Ω Balanced PCM Cables for Transmission Equipment Installation
Ref. Standandards: Lucent, Ericsson, Alcatel & TEC
Conductor:
Solid plain annealed copper to IEC 60228
Insulation: PE/Foam PE.
Pair Colour: A Wire-Red, B Wire-Blue
Lay-up: Two insulated conductors twisted to form a pair, Screened with numbered Aluminium mylar tape with 0.5mm ATC earth wire. Required number of pairs are laid up, stranded together to form a compact circular cable.
Wrapping: Polyester or polyethylene tapes are taped around the cable for isolation.
Screening: Aluminium mylar tape lapped with overlap. Nominal thickness of tape is 0.05mm with earth wire 0.5mm ATC.
Braiding (Optional): 0.15mm ATC braiding with minimum coverage of 30% and 35-40° braid angle.
Sheath: PVC/FR/FRZH
Conductor
Diameter (mm)
Conductor Resis-
tance(Loop) at
20° C (Ω /km)
Insulation
Resistance
(MΩ/Km)
Capacitance Un-
balance Pair to
Ground(pF)for 500m
Impedance
(Ω )
Resistance
Unbalance
%
Cross talk
db for 500m.
Length
0.4 308.0 5000 2000 120 2.5 70
0.5 187.9 5000 2000 120 2.5 70
No. of Pairs No. ofCores Numbered Tape Sheath Thickness (mm) Nominal
1 2 1 0.8
2 4 2 0.8
3 6 3 0.8
4 8 4 0.8
5 10 5 0.8
6 12 6 1.0
7 14 7 1.0
8 16 8 1.0
9 18 9 1.0
10 20 10 1.0
11 22 11 1.4
12 24 12 1.4
13 26 13 1.4
14 28 14 1.4
15 30 15 1.4
16 32 16 1.4
 
 
     
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