©
National Instruments Corp.
5
NI 9401 Operating Instructions and Specifications
Special Conditions for Marine Applications
Some mod
u
les are Lloyd’s Register (LR) Type Approved for
marine applications. To verify Lloyd’s Register certification, visit
ni.com/certification
and search for the LR certificate, or
look for the Lloyd’s Register mark on the mod
u
le.
Caution
To meet radio freq
u
ency emission req
u
irements
for marine applications,
u
se shielded cables and install
the system in a metal enclos
u
re. S
u
ppression ferrites
m
u
st be installed on power s
u
pply inp
u
ts near power
entries to mod
u
les and controllers. Power s
u
pply and
mod
u
le cables m
u
st be separated on opposite sides of the
enclos
u
re and m
u
st enter and exit thro
u
gh opposing
enclos
u
re walls.
