Specifications

opposed to Micro cable (4 amps). Mini cable has an outside
diameter in the range from 0.41 to 0.49 inches. Its maximum
installed bend radius is 7x the cable diameter. You can also
use this type of cable for drop lines.
Mid - This is commonly used for smaller networks as either the
network trunk line or as drop lines. Mid cable and connectors
are rated to 4 amps just like the Micro cable, however the larger
diameter power conductors within the Mid cable provides for
less voltage drop over Micro cable, especially for long runs.
The diameter of the Mid cable is 0.33 inches.
Micro - This cable type is typically used as the drop line
connecting devices to the main trunk line with an outside
diameter in the range from 0.24 to 0.28 inches. Micro cable
has a smaller diameter and is more flexible than mini cable
with an installation bend radius of 7x the cable diameter.
Smaller networks use this type of cable for both the trunk
and drop lines.
You construct the trunk line using double-ended cordsets
connected between tees or taps. One end of the cordset
has a male connector with male pins while the other end of
the cordset has a female connector and female receptacles.
The connectors are keyed so they can only connect to
each other in one way. As an alternative to double-ended
cordsets, you can make your own trunk line using bulk
cable and field-attachable connectors. If you decide to add
equipment later, you can simply disconnect a cordset from
a tee, add another tee directly to the existing tee, re-connect
the cordset and add the new component to the system using
a drop cable. Alternatively, you could cut the trunk line,
add two field-attachable connectors and insert a new tee.
Trunk lines can also be run up to watertight bulkheads and
connected to a waterproof bulkhead feed-thru connector to
maintain the integrity of watertight compartments.
To drop off the trunk line, you connect a device using a tee
connector. Daisy chaining of devices is not allowed, as it is
a requirement to be able to remove a component from the
network without affecting any other device. This allows you
to remove a device for servicing while the rest of the network
remains operational. Multi port boxes are also available
where instruments tend to be clustered, around the helm for
example.
1.2 Maximum Cable Distance
The cable distance between any two points in the cable
system must not exceed 200 meters (656 feet) for the Mini
cable or 100 meters (328 feet) for the Micro and Mid cable.
For most cases, the maximum distance should be measured
Figure 2
Maximum Cable
Length Determination
69