Operation Manual

Technical specifications | 47
Vibration resistance (according to IEC 68-2-6):
16 g with frequency range from 40 to 500 Hz and
maximum shifting 0,75 mm (peak -to- peak)
4.11 SimNet
Maximum number of products connected in a network: .......... 50
Maximum cable length: ....................................... 150 m (500’)
Bit rate of the bus:.......................................... 250 Kbit/second
Maximum DC current through a single SimNet plug ................ 5A
SimNet power supply: .................................................. 12VDC
Maximum drop cable length: ..................................... 6 m (20’)
Maximum total length of all drop cables (accumulated): 60 m (200’)
Environmental protection: Cable and plug/connector system IP66
Maximum temperature: ..................................... 70 °C (158 °F)
4.12 IP protection
Each part of a Simrad autopilot system has a two digits
IP protection code.
The IP rating is a method to classify the degree of
protection against solid objects, water ingress and impact
afforded by electrical equipment and enclosures. The
system is recognized in most European countries and is
set out in a number of British and European standards.
The first code number describes the protection against
solid objects, and the second number describes the
protection against liquids.