After just having the communications board of my Freedom 20 inverter
replaced, I went through the owners manuals for both the inverter and the
Link 10 monitor again to double check the installation.

The instructions for the Link 1000 requires disconnecting the Link 1000
communications plug before disconnecting the battery power.  With a
1-2-Both-Off  switch on the batteries, this could inadvertantly be switched
to off during maintenance etc. especially if the switch is a "break before
make" type.

What damage results if this warning is not followed?  If this is a serious
consideration, what are the suggestions on how to handle
this to protect the unit?

I emailed this very question to Zantrex a week ago with no reply.  Now is
the time for the trusted information from the listees.  Arild, please chime
in if you read this.

Thanks

Gary Brobst
m/v Waypoint
49' DeFever RPH
Currently at Oak Harbor Marina
Slidell, LA
cell phone (260) 450-0782

Dear Gary,
Your Link 1000 has three connections to 12v battery positive; one
powers the Link, and the other two are voltage sense leads for
the house and start batteries.  All three of these should be
connected to the battery posts, or other direct connnection
without switches in between, to prevent inadvertant
disconnection.    All three require a 2a fuse in line, which is
important to prevent damage to the Link if there is a wiring
problem.  You could move the connection point from the battery
switch "switched" terminal to the battery input terminals, which
will always be hot.

Inadvertant disconnectin from 12v power will probably do no
permanant harm to the Link 1000, but will result in loss of data,
and the Link may lock up if the re-connection of the three power
leads is not done in the proper order, and "smoothly", without
multiple connects & disconnects, if the fuses are put in in a
jerky manner.  The manual speaks to this on page 44 in the
startup section.

Mark Richter, Winnie the Pooh
"Mark's Mobile Marine", boat electrical systems repair & consulting.