COBHAM SAILOR 6120, Руководство по установке

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Chapter 3: Connect the system
32 The CAN backbone
3.3 The CAN backbone
When connecting the CAN backbone, be aware of the following
requirements:
• The CAN bus is already terminated with 120 Ohm inside the SAILOR
3027.
You must provide the CAN bus with a termination
resistance of 120 Ohm
at the other end of the CAN backbone, either
with a separate termination resistance or inside the last device on the
CAN backbone. The SAILOR 6194 has a built-in termination resistance.
• The cable length from each device to the CAN T-connector must be
maximum 6 m.
• The total length of the backbone must be maximum 200 m.
• Make the ground connection to ship ground (hull) at the power supply -
and only there.
• Connect the shield of the CAN cable to the connectors throughout the
system, but only connect to ship ground at the power supply.
Max.
6 m Max.
6 m Max.
6 m
Max. 200 m
120 Ohm
GND
(ship hull)