If it was possible, why would someone wish to permanently ground an
inactive port and make it inoperative in these DX Eng units?
Doug
The train doesn't stop here anymore.
-----Original Message-----
Correction to my previous note below. Since I am slightly paranoid I
cobbled up a quick test. The Tech had it wrong. Jumpering a switch
position leaves that position grounded until it is selected. At that
point it is no longer grounded and is then connected to the common -
just like you expect. So, I will jumper all positions, which will leave
them grounded until selected.
Keith - AC9S
"""I posed a question here a week or so ago about grounding unused ports
on the DX Engineering switch - the consensus was to ground them. Today,
prior to soldering in the grounding jumpers, I called DX Engineering to
verify that doing so would still allow me to select those ports. IT
DOES NOT. According to tech support soldering the jumpers will
permanently ground that position. It cannot be selected unless the
jumper is removed. My switch is the RR8A-HP, the 5KW version. I just
checked the 10KW version and found its manual states "Lightning
protection is excellent in the RR8-SD relay system. There
is never an ungrounded path for lightning, regardless of how you
configure internal jumpers. To ground inactive ports, solder a jumper
wire between the foil traces for that port as shown.
So the low and high power versions are configured differently. The
lower power version will NOT allow you to have unselected ports
grounded, merely "inactive" ones. I wish the catalog included that
info. I bought this one at Dayton and it is way past the point at which
I can return it."""
Keith
AC9S
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