Transmission Cable - Fujitsu AIRSTAGE J-IIIL Design & Technical Manual

4-3. Transmission cable

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"Definition" on page 06-4
¢ Wiring specifications
Use
Transmission
cable
Use shielded cable specified below and always ground it both end.
22 AWG (0.65 mm) LEVEL4 cable with shielded (National Electrical Manufacturers Association [NE-
MA]) differs from the Category 4 specification proposed by the Electronic Industries Association/
Telecommunication Industry Association (EIA/TIA).
Item
Wire type
Pair (Twisted pair cable)*
Loop DC resistance (68 °F [20 °C])
DC resistance unbalancing (68 °F [20 °C])
Dielectric voltage
(Between conductor and conductor)
Insulation resistance (68 °F [20 °C])
(Between conductor and conductor)
Static capacitance between
conductors
Unbalanced static
capacitance (To ground)
Characteristic impedance
Attenuation
Cross talk attenuation*
4-3. Transmission cable
Cable size
22 AWG
LEVEL4 (NEMA) non polar 2-core, twisted
2
pair solid core, diameter 0.65 mm
(0.33 mm )
Reference specifications for transmission cable
1
Ohm/1,000 ft
(Ohm/305 m)
Mohm-km
1 KHz
1 KHz
772 KHz
1 MHz
4 MHz
8 MHz
10 MHz
16 MHz
20 MHz
772 KHz
1 MHz
4 MHz
dB/1,000 ft
8 MHz
(dB/305 m)
10 MHz
16 MHz
20 MHz
772 KHz
1 MHz
4 MHz
dB/1,000 ft
2
8 MHz
(dB/305 m)
10 MHz
16 MHz
20 MHz
Cable type
Unit
mm
—
%
V/min
(After charging DC 500 V 1 min)
nF/km
nF/km
Ohm
- (06-54) -
Remarks
LonWorks compatible
cable
Specifications
0.65 dia (22 AWG)
Twisted pair with shield
1 pair or 2 pair
Less than 18
Less than 5
AC 350
More than 500
Less than 56
Less than 3.28
102±15% (87 to 117)
100±15% (85 to 115)
Less than 4.5
Less than 5.5
Less than 11.0
Less than 15.0
Less than 17.0
Less than 22.0
Less than 24.0
Less than 58
Less than 56
Less than 47
Less than 42
Less than 41
Less than 38
Less than 36
4. Wiring design