SPECIAL CABLES
PCM CABLES
Size and
Cond. Dia
(mm)		 Res./Km of cable
Cond.@ 
20° C(ohms)		 Resistance
Unbalance
  		 Mutual
Capacitance
@800-1000Hz		 CUPS
(pF/km)		 Avg Atten. of Prs.@ 20°C at 1024KHz dB/ Km Min.% Elong.
of Cond.		 Nominal
Cable Dia. over Jkt (mm)
Avg  Indi.
10+2P/0.63 58+/- 2 1 2 50-54 Max1500 15.5

18%

 23
20+4P/0.63 58+/- 2 1 2 50-54 Max1500 15.5

18%

 27
48+6P/0.63 58+/- 2 1 2 50-54 Max1500 15.5

18%

 34
96+8P/0.63 58+/- 4 1 2 50-54 Max1500 15.5

18%

 42
CUPG (pF/km) at 800-1000KHz:

Between Pairs of same units within same compartment-Indiv. Value249pF/km; RMS 42pF/km.
Between Pairs to Adjacent Units in same Compartments: Indiv. Value 124pF/km RMS 33pF/km.
"X" Talk @1024KHz  dB/km ELFEXT

Between Pairs within Units in same compartments Average-Standard Deviation: 53dB
NEXT

Between Pairs within Units in same compartments across Shield Average-Stnd.Deviation: 85 dB Minimum

 

CAT-5 CABLES
Size and
Cond. Dia
(mm)		 DC Loop  Res. Cond. @ 20°C
(R1+R2)		 Resistance
Unbalance
(ohms)		 Impedance
(ohms)
>1MHz  @ 0.064 MHz  		 CUPG
(pF/km)		 Return Loss
(dB/0.1km)		 ACR
Value
@100MHz		 Attenuation
@ 20° C at
100MHz 
dB/ Km		 NEXT@ 20°C at 100MHz
  dB/ Km		 Nominal
Cable
Dia(mm)
4P  0.5 Max.19.2
ohms/0.1km		 3 100+/- 50 125+/- 25 Max. 3400 Max. 10dB Min. 4 dB/km Max. 22 dB Min. 32 dB 4.5

4P 0.4mm and 0.6mm Specifications will be provided on enquiries.

 

QUAD CABLES
Size and
Cond. Dia
(mm)		 Res./Km of cable Cond. @ 20°C
Tol+/- % Loop Res.		 Mutual Capacitance
@ 800-1000Hz  (nF/km)
 Impedance
@120kHz		 Min.% Elong.
of Cond.		 Nominal Cable Dia
Over Jacket (mm)
Average      Individual
7Quads   0.9 28 ohms 40 +/- 2 40 +/- 3 120 +/- 5 ohms 20% 24
7Quads  1.27 14 ohms 40 +/- 2 40 +/- 3 120 +/- 5 ohms 25% 31
19Quads  0.9 28 ohms 40 +/- 2 40 +/- 3 120 +/- 5 ohms 20% 35
19Quads 1.27 14 ohms 40 +/- 2 40 +/- 3 120 +/- 5 ohms 25% 48
27Quads  0.9 28 ohms 40 +/- 2 40 +/- 3 120 +/- 5 ohms 20% 41
27Quads 1.27 14 ohms 40 +/- 2 40 +/- 3 120 +/- 5 ohms 25% 58
CUPP (pF/0.5km) at 800-1000KHz: Between Pairs of same Quad Average 17 pF;  Maximum 60 pF. 
Between Pairs of the Adjacent Quad in the same Unit: Average 5 pF; Maximum 25 pF 
Between Pairs of the Quad in different Units: Average 5 pF; Maximum 20pF.
  "X" Talk @1024KHz  dB/0.5km ELFEXT 62 dB/0.5 km CF Side One to Side Two as well as between Pairs within same Quad : CF 10 to 120 KHz
NEXT Min 50dB/0.5 km CF Side One to Side Two as well as between Pairs within same Quad : CF 10 to 120 KHz

 

COAXIAL CABLES
Name of the Specification RG59 RG6 RG7 RG11
Dimensions(mm)        
Inner Conductor 0.81 1.02 1.29 1.63
Dimentions of 1st Shield 3.86 4.78 5.92 7.32
Shield Layers  Jacket  I  II III I II III I     II III I     II III
6.1 6.2 6.8 6.9 7.06 7.54 8.1    8.2  8.64 10.1   10.2 10.34
Electrical Specification
Impedance (ohms)   75+/-2 75+/-2 75+/-2 75+/-2
Attenuation Constant 5MHz 3.0 2.2 1.6 1.2
@ dB/100m at 20deg C 55MHz 6.4 5.2 4.1 3.1
not greater than 211MHz 12.5 10.1 7.7 6.2
  270MHz 14.1 11.1 8.9 7.1
  300MHz 14.7 11.8 9.4 7.5
  330MHz 15.7 12.4 9.9 7.9
  400MHz 17.0 13.7 10.9 8.8
  450MHz 18.2 14.5 11.6 9.5
  550MHz 20.3 16.2 13.0 10.5
  750MHz 24.0 19.0 15.4 12.5
  870MHz 26.0 20.8 16.4 13.9
  1000MHz 28 22.3 18 15
Shield Constant >= dB 55MHz 68 68 68 68
300MHz 78 78 78 78
1000MHz 80 80 80 80
Echo Loss >= dB  20 20 20 20

N. B. : Specifications are given as reference. 
The cable designs are subject to change.

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