PCM E1 Indoor Cable
PCM E1
This cable covers the requirements of high density polyethylene insulated, twist pair, overall foil screen,
copper tape shielded and Low Smoke Free Halogen sheath for digital exchanges and PCM E1 equipment
carrier systems.
Electrical Characteristics at 20℃
Item\Conductor Diameter |
(mm) |
0.4 |
0.5 |
Conductor Resistance(20℃) |
Ω/km |
Max.157.0 |
Max.100.2 |
Dielectric Strength(V/1 min.) |
Conductor-Conductor |
D.C 1000V or A.C 700V (r.m.s) |
|
Conductor-Screen |
D.C 1500V or A.C 1000V (r.m.s) |
||
Min. Insulation Resistance |
MΩ-km |
Min.5000 |
|
Mutual Capacitance (1KHz) |
nF/km |
Max. 50 |
|
Attenuation (at 1024 KHz) |
dB/km |
1P: Below 42.5 Above 1P: 25.0 |
1P: below 34.0 Above 1P: 20.0 |
Near-end crosstalk attenuation(at 1024 KHz) |
dB |
A.C. 360/2 (R.M.S);D.C. 50/1 |
|
Characteristic Impedance( at 1024 KHz) |
Ω |
120 ±10 |
|
Conductor Ground |
(V/sec.) |
≧60 |
UTP Type |
STP Type |
0.4, 0.5mm Conductor: Tinned copper wire |
0.4, 0.5mm Conductor: Tinned copper wire |
Insulation:Foam-skin polyethylene |
Insulation:Foam-skin polyethylene |
Twinning: Two insulated conductors are twisted into a pair. |
Twinning: Two insulated conductors are twisted into a pair. |
- |
Individually Screening: Polyester tape Drain wire: Aluminum-Polyester tape |
Cable formation: Layer type |
Cable formation: Unit type |
Polyester tape |
Aluminum-Polyester tape |
Drain wire |
Drain wire |
Annealed copper type |
Aluminum-Polyester tape |
Polyester tape |
- |
LSFH Sheath |
LSFH Sheath |