Operation Manual

26 | Installation
2.15 SimNet
The SimNet cable system with very small plugs in both
ends makes it easy to run the cables, only 10 mm (3/8”)
holes are required through panels and bulkheads. The
SimNet accessory program contains the necessary items
to make a successful installation. Refer to SimNet
cables and accessories, page 33.
SimNet network cables
A SimNet unit has one or two yellow SimNet connectors.
There are no dedicated “in” or “out” connectors. Route
the SimNet cables with Figure 2-20, Figure 2-21 or Figure
2-22 as a guideline. Select cables and accessories from
the SimNet accessory program. Connect products with
two SimNet connectors in a daisy chain and use drop
cables and T-joiners when required. For cable extension
in-line cable joiners are available. Total length of SimNet
cable installed in a system should not exceed 150 meter
(500’).
If you plan to extend your SimNet system in the future it
may be advantageous to prepare for it by adding a few T-
joiners in central locations. The T-joiners provide easy
access to the network and can be replaced with a new
product, or the new product can be connected via a drop
cable.
The connectors are weather proof according to IP66,
when properly installed. All unused SimNet connectors
must be fitted with the plastic cap to protect them against
dirt and moisture.
SimNet power and termination
The following rules should be observed when installing
SimNet.
1 It must have a separate 12VDC power from the
battery bus or the circuit breaker board to reduce
interference
2 It must not be connected to the supply voltage
terminals on the Autopilot Computer.