D Low Voltage Cable
Specifications
Communication Bus (Automation/Safety)
Table D-1 Communication cables (Signal A and signal B)
Cable Parameter
Value
Minimum
Typical
Maxium
Cable type
Twisted and shielded
Minimum gauge
18AWG (diameter of 1.02mm or cross sectional area of
0.82mm²)
Maximum cable length (including cable extensions) 1200 meters (4000 feet)
Certification and type
CSA,CMG FT4 type, 18AWG, 600V, 194˚F 90˚C)
UL,AWM or CM type, 18AWG, 600V, 194˚F 90˚C)
If DC power is used in the same cable use TC-ER type
(600V, 194°F (minimum 90°C))
Characteristic Impedance
73 Ω
120 Ω 140 Ω
Inductance
—
0.258 µH/ft,
Nominal
0.3 µH/ft
Mutual Capacitance — 12 pF/ft 30 pF/ft
Velocity of propagation
66%
75%
—
Conductor DCR
—
6.9Ω/1000ft @
20°C, Nominal
8Ω/1000ft Max @
20°C
OA Shield DCR
—
1.8Ω/1000ft @
20°C, Nominal
7Ω/1000ft
Attenuation (Max dB/100ft) 0.13 @ 125 kHz
0.25 @ 500 kHz
0.36 @ 1 MHz
Pair Lay Length
— 2.50” LHL 2.75” LHL
Jacket Diameter*
—
0.414 inch 0.449 inch
* Some products are provided with strain reliefs. If the cable diameter goes over this diameter value, the strain reliefs may not
work properly.
890–00687 EDGE 2
129
To Next Page
Loading...
