PE
– PVC
PCM (E1) Switch board Cable
Figure：
1.
Application：This
cable is used. for interconnecting between frames of PCM equipments
with
120W
characteristic impedance.
2.
Conductor：Annealed bare copper wire.
3.
Insulation：PE (Polyethylene)
4.
Twist：Two wires twisted to form a pair.
5.
Assembly：Suitable
number of pairs assembled to form a cable core.
6.
a.Mylar-aluminum
tape for 1 pair. b.Soft copper tape for 5 pairs and above.
7.
Sheath：PVC
(polyvinyl Chloride)
8.
Structure：
Conductor
|
Pair
(P)
|
Insulation
|
Cable
core diameter
|
Sheath
|
Diameter
overall
|
Standard
|
|
Diameter(mm)
|
|
Thickness(mm)
|
approx.
(mm)
|
Thickness(mm)
|
(approx.)
|
Length(M)
|
|
0.5
|
1
|
0.38
|
2.5
|
0.5
|
3.6
|
200
|
|
0.5
|
5
|
0.40
|
6.2
|
1.0
|
8.3
|
500
|
|
0.5
|
10
|
0.40
|
8.5
|
1.0
|
11.2
|
500
|
|
0.5
|
25
|
0.40
|
12.6
|
1.0
|
15.3
|
500
|
9.
Characteristics：
|
Items
|
Specification
|
|
Conductor Resistance
|
Max.93.5MΩ
/ Km (20℃)
|
|
Insulation Resistance
|
Min.10000MΩ
- Km(20℃,DC
500V / 1 min.)
|
|
Dielectric Strength
|
DC 300V / 3sec.(60Hz)between conductors
|
|
Static Capacitance
|
Avg.
|
Max. 50nF / Km (1KHz)
|
|
Attenuation.(1024KHz)
|
Max.22 dB / Km
|
|
Characteristic Impedance
|
120 ±
10Ω(1024KHz)
|
|
NEXT (1024KHz)
|
m -
△≧56
dB / 500M (less than 15paire)
|
|
m -
△≧
60 dB / 500M (25paire)
|
|
m：avg.value
|
|
△：Standard difference
|
10.
Marking：TATUNG CO.
PCM-E1 0.5 ´
□
P Year □
M
|
