| Application | The cables are used as basic access for ISDN services in central office wiring and cabling for ISDN basic access installation. |
| Standards | ER.f5.058 |
| Construction | |
| Conductors: | Solid annealed bare copper sized 0.5/0.6mm as per ASTM B-3/IEC 60228 class 1 |
| Insulation: | Solid polyethylene as per ASTM D 1248/IEC 60708 |
| Twisted Pairs: | Insulated conductors are twisted into pairs with varying lays to minimize crosstalk |
| Cable Core Assembly: | The pairs are cabled together in layers of 12, 13 & 25 pair unit to form the cable core. Units are identified by colour coded binders |
| Core Wrapping: | One or more non-hygroscopic polyester tapes are helically or longitudinally laid with an overlap |
| Screen: | Aluminium/Polyester tape is applied longitudinally with an overlap |
| Sheath: | PVC/LSZH |
| Ripcord: | Nylon ripcord may be placed parallel to the cores to facilitate sheath removal |
Electrical Properties
|
Nominal Conductor Diameter |
mm |
0.5 |
0.6 |
|
Conductor Gauge Size |
AWG |
24 |
- |
|
Conductor Size |
mm2 |
0.196 |
0.283 |
|
Maximum Conductor Resistance @20°C |
Ω/km |
91 |
63 |
|
Minimum Insulation Resistance @500V DC |
MΩ.km |
16000 |
16000 |
|
Maximum Resistance Unbalance |
% |
2.5 |
2.5 |
|
Average Mutual Capacitance |
nF/km |
52 |
52 |
|
Maximum Capacitance Unbalance @1KHz pair-to-pair |
pF/km |
260 |
260 |
|
Maximum Capacitance Unbalance @1KHz pair-to-ground |
pF/km |
2625 |
2625 |
|
Maximum Average Attenuation @20KHz |
dB/km |
4.9 |
3.9 |
|
Maximum Average Attenuation @40KHz |
dB/km |
6.2 |
4.8 |
|
Maximum Average Attenuation @60KHz |
dB/km |
7.0 |
5.6 |
|
Maximum Average Attenuation @80KHz |
dB/km |
7.7 |
6.0 |
|
Maximum Average Attenuation @100KHz |
dB/km |
7.9 |
6.3 |
|
Minimum ELFEXT pair-to-pair @20KHz |
dB |
56 |
56 |
|
Minimum ELFEXT pair-to-pair @40KHz |
dB |
52 |
52 |
|
Minimum ELFEXT pair-to-pair @60KHz |
dB |
50 |
50 |
|
Minimum ELFEXT pair-to-pair @80KHz |
dB |
49 |
49 |
|
Minimum ELFEXT pair-to-pair @100KHz |
dB |
48 |
48 |
|
Minimum NEXT pair-to-pair @20KHz |
dB |
61 |
61 |
|
Minimum NEXT pair-to-pair @40KHz |
dB |
57 |
57 |
|
Minimum NEXT pair-to-pair @60KHz |
dB |
55 |
55 |
|
Minimum NEXT pair-to-pair @80KHz |
dB |
54 |
54 |
|
Minimum NEXT pair-to-pair @100KHz |
dB |
51 |
51 |
|
Dielectric Strength Conductor to Conductor 3secs |
V DC |
3600 |
3600 |
|
Nominal Insulation Thickness |
mm |
0.2 |
0.25 |
|
Nominal Insulated Conductor Diameter |
mm |
0.9 |
1.1 |
Mechanical and Thermal Properties
Temperature range during operation (fixed state): -30°C – +70°C
Temperature range during installation (mobile state): -20°C – +50°C
Minimum bending radius: 15 x Overall Diameter
Colour Code
Standard colour code is per BT CW 110J given in Colour Code Chart.
Dimensions And Weight
|
Cable Code |
Number of Pairs |
Nominal Sheath Thickness mm |
Nominal Overall Diameter mm |
Nominal Weight kg/km |
|
0.5mm Conductor, 0.9mm Insulated Wire |
||||
|
UE-TP58-2Y(St)Y2P05-ISDN-B |
2 |
0.8 |
4.5 |
23.0 |
|
UE-TP58-2Y(St)Y4P05-ISDN-B |
4 |
0.8 |
5.0 |
33.5 |
|
UE-0.6mm Conductor, 1.1mm Insulated Wire |
||||
|
UE-TP58-2Y(St)Y2P06-ISDN-B |
2 |
1.0 |
5.5 |
30.0 |
|
UE-TP58-2Y(St)Y4P06-ISDN-B |
4 |
1.0 |
6.0 |
45.0 |
