Installation Manual

Installation Manual
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CMA-794-AEN
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Page 7
Power
Max Distance (meters) @ AWG
12 14 16
78 W 778 467 295
88 W 689 414 261
96 W 632 379 239
98 W 619 372 235
Note: The maximum power consumption is 98 W when N2 has 8 PA modules operating at maximum
output power.
Class 2 Installation for North America area (maximum input power is 100 W):
Pn = 78 W Power consumption of N2RU Pw = 22 W
If N2 consumes 78 W then 22 W is
dissipated in the wire (Pw)
Pin = Vin*Iin = 100
W
Pin = 100 W max for class 2 installation
Rw = Pw/Iw2 =
6.8992
Rw = resistance of the wire
Vin = 56 V Voltage of N2 PSU
Rw = Rd*D
D = distance of the wire (total length of
supply + return cable)
Rd = resistance per meter of the wire
Iin = Pin/Vin =
1.786
Iin = Max injected current to not exceed
100 W
Cable
type
Voltage Drop D=Rw/Rd (meters) Max Fiber Distance (meters)
ohms/meter 2x distance between PSU and N2RU (there and back) Distance between PSU and N2RU
12 AWG 0.00557 1239 619
14 AWG 0.00928 743 372
16 AWG 0.0147 469 235
Power
Max Distance (meters) @ AWG
12 14 16
78 W 619 372 235
88 W 338 203 128
94 W 169 101 64
98 W 56 34 21
The cable connector diagram is below
Figure 2. Cable Connector Diagram