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Telecomunnication Cables
Chetan pair cable
products are manufactured in variety of gauge sizes, dimensions,
insulation materials, shielding configurations and jacketing materials.
Paired cable allow balance signal transmissions which results in lower
crosstalk through common mode rejection. Due to the improved noise
immunity of twisted pairs, they generally permit high data speed than
multi conductor cables. Most of our pair cables are available ex-stock
in a wide variety of colours and packages. Many of these are available
off the shelf from our distributors. If you have a new or unusual
requirement, you can contact us.
100 ohm/120 ohm Balanced PCM Cables for Transmission Equipment Installation
Conductor: Solid plain annealed copper.
Insulation: 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/PU
Velocity of Propagation : 66%.
Conductor
Diameter (mm)
|
Conductor
Resistance
(Loop) at
20oC (ohm/km)
|
Insulation
Resistance
(Mohm/km)
|
Capacitance
Un-balance
Pair to Ground
(pF) for 500m
|
Impedance
(ohm)
|
Resistance
In-balance
%
|
Cross talk
db for
500m
Length
|
0.4
0.5
|
308.0
187.9
|
5000
5000
|
2000
2000
|
120
120
|
2.5
2.5
|
70
70
|
No. of Pairs
|
No. of Cores
|
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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