Manual
NOTES: 
• The installation must conform to national and local building and electrical codes, and UL requirements. 
See the device user guide for details.
• The included power supply MUST NOT be installed above the suspended ceiling, in wall cavities or 
similar locations.
1. — Install the PMK 550 Base Plate
a.  Using a 5/32 inch hex wrench, remove the four 
cover screws from the center of the PMK 550 
and slide the two halves apart. Remove them 
from the base plate. 
NOTE: If the PoleVault switcher and its power 
 supply are already installed, go directly to 
 step 2e.
b.  To mount the PoleVault switcher, place the 
mounting plate, with the raised tabs upwards, 
on top of the switcher top and pass the two 
supplied 4-40 x 3/16 inch screws down through 
the plate holes and into the top of the switcher 
(see image at right). Secure the plate but do 
not overtighten. 
c.  Invert the combined plate and switcher and 
hook the plate tabs into the PMK 550 base 
plate. Secure it to the base plate with two 
screws.
NOTE: The switcher should be mounted 
on the same side as the base plate’s 
pipe collar. The switcher is secured 
inverted to the base plate so that when 
the plate is turned over and fastened on 
the pole, the device will be in the correct 
orientation
Use only the supplied screws to avoid 
damaging the switcher.
d.  Attach the associated power supply with the 
supplied plastic ties, by passing the ties through 
the appropriate slots and around the power 
supply. Tighten until snug.
e.  Using a 3/32 inch hex wrench loosen the four 
pipe collar set screws, and slide the plate up 
the pipe until the base plate is touching the 
drop ceiling.
f.  Level the plate and secure it in place with the 
four set screws located on the collar, ensuring 
that a minimum of three set screws are 
tightened firmly against the pole.
û
 Invert and secure the PVS 305SA IP and 
ü 
the power supply on the PMK 550 base plate.
†
 Slide the base plate up onto the pole 
 and 
°
 secure with the set screws.
Å
 Place the plate (with raised tabs up) on the 
top of the PVS 305SA IP and secure with supplied 
screws. 
û
Hook tabs into base plate.
SIGNAL
5
AUX AUDIO
SENSOR
SENSITIVITY
5
AUX AUDIO
PVS 305SA IP
POLEVAULT SWITCHER
INPUT SELECTION
1
2
PEAK
NORMAL
SIGNAL
CONFIG
3 4
5
AUX AUDIO
AUDIO LEVEL ADJUST
PAGING
SENSOR
SENSITIVITY
VOICELIFT
MIC
PEAK
NORMAL
SIGNAL
INPUT
Å
û
PoleVault IP Systems • Installation — Stage 4 (PMK 550 and PVS 305SA IP)34










