Extron electronics PVS 405D Installation Manual page 57

b. Secure the power supply on the base plate, as
close to the switcher as possible. To do this,
pass the tie wraps through the holes in the
base plate and then around the power supply.
Tighten the tie wraps. The cables should then
be easily and safely routed to the electrical
outlet and to the switcher.
c. Extend the boom arm to the appropriate
projector throw distance and secure in the
applicable slots with the four supplied (¼-20 x
½ inch) screws and washers.
NOTE: Do not overtighten the screws.
d. Loosen the set screw (located in the lower hole
on the boom arm end), and screw the threaded
pipe up into the end of the arm. A minimum of
three turns is needed to safely secure the pipe
in place. Lock it in place by tightening down the
set screw.
The upper hole on the boom arm end is
NOTE:
for attaching an optional seismic support wire.
e. Run the video cables from the switcher to the
projector through the boom arm so that they
exit down the projector mounting pipe.
Provide sufficient cable slack within
NOTE:
the boom arm to allow for future arm length
adjustment.
f. Referring to the UPB 25 User Guide, screw
the UPB 25 upper mounting plate onto the
threaded pipe and attach the projector to the
UPB 25 projector bracket.
g. Attach the projector bracket (with projector
installed) onto the UPB 25 mounting plate and
secure.
h. Connect the output cables from the switcher,
any MLC control cables, and the power cable to
the projector.
CAUTION:
Electrical Shock that may result
in injury. Do not thread the projector power
cable through the boom arm or mounting
pipe. Threading it through the arm or the pipe
violates national electrical regulations.
PoleVault Digital Systems • Installation — Stage 4 (USFM 100 and PVS 405D) 51