I am preparing to build the cable between my Garmin GDU-700L display and my engine analyzer. There is a twisted shielded two-conductor cable called out, with the notation that it is an RS485 system. Is any twisted shielded cable OK for this run?
The Garmin diagram shows a shield block ground at both the GDU and the GEA. The general rule seems to be to only ground one end of any shielded run. Should I follow the general rule or the Garmin diagram? If only one end of the shield is grounded, should it be at the display or the analyzer?
Thanks, in advance, for your wisdom and help.
The Garmin diagram shows a shield block ground at both the GDU and the GEA. The general rule seems to be to only ground one end of any shielded run. Should I follow the general rule or the Garmin diagram? If only one end of the shield is grounded, should it be at the display or the analyzer?
Thanks, in advance, for your wisdom and help.