KVH Industries TracPhone F55, Installation Manual

Page: 60 / 157

Chapter 8: Connecting Power
38 Power cable selection
8.1.1 Old 4-port power connector
(Only applicable for old 4-port power connector).
To make sure that the power cable fits the power connector the dimensions of
the cable must be:
• Cable outer diameter max 3 mm
• Inner core 1.5 mm
2
The cable inductance should not exceed 5
µ
H. If the inductance is too high,
the power supply may start to oscillate.
To minimize the cable inductance a multi 2- or 4-wire cable should be used.
Recommended power cable types and length:
The power connector has the option of running four cables instead of two,
which allows the cable to be twice as long.
Cable Type
Length from source.
Source imp. < 50 m
Ω
Length from source.
Source imp. < 100 m
Ω
2 x 1.5 mm
2
0 - 10 m 0 - 7 m
2 x 2 x 1. 5mm
2
10 - 20 m 7 - 14 m
Use local AC:DC
converter. > 20 m > 14 m