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PMK 450 Projector Mounting Kit • Installation Notes

 

PRELIMINAR

Y

Installation Notes for PMK 450 (70-68-03)

The Extron PMK 450 Projector 

Mounting Kit can accommodate 

multiple Extron products of one 

eighth, quarter, or half rack sizes 

with power supplies.
The components of the PMK 450 

kit are shown in Figure 1.  Also 

included are:

•   Set-screw hex wrench (1)
•   Security screw hex wrench 

(1)

•   Velcro™ Pads for securing 

power supply (2)

•   4-40 Screws for mounting 

devices (6)

68-1397-01, Rev 

B

11 07

FRONT

REAR

Pipe Collar &
Set Screws

Extron PMP

Pipe Collar (1) with 
Set Screws (4)

Security Screws (2)

AC Power Cord
Access Slot

Plate
Screws (4)

Bottom Plate (1)

Filler Plate (1)

Front Plate (1)

Rear Plate (1)

Top Plate (1)

Figure 1 — Contents of PMK 450 kit

Figure 2 — Mount top plate on pole

FRONT

REAR

Cable Input from
Sources (AV control)

Cable Access
Hole

L

R

AU

X/M

IX 

IN

DO

 NO

T G

RO

UN

D

OR

 SH

OR

T

SP

EA

KE

R O

UT

PU

TS

!

1B

1A

I
N

P
U

T
S

O

U

T
P
U

T
S

2B

2A

3B

3A

RS

-23

2 M

LC

/IR

DC

  VO

L

4/8

 Oh

ms

AM

PL

IFIE

D O

UT

PU

TS

VO

L/M

UT

E

Tx

A

B

C

Rx

IR

12V

10V

PO

WE

R

12V

     

    

3A

  M

AX

US

LIS

TED

 17

TT

AU

DIO

/VID

EO

AP

PAR

ATU

S

®

RG

B

VID

EO

RG

B

VID

EO

Bottom Plate

Cable Output
 to Projector

Figure 3 — Route cables

Installation

CAUTION

 Maximum load for the PMK 450 is 15 lb (6.8 kg).

1.

 

Unscrew the front and rear plates and the security 

screws from the sides.  

Slide the top and bottom 

plates apart.

  The filler plate is attached to the rear 

plate and should not be removed.

2.

 

Ensure that the mounting pipe is installed with 

the cable access hole facing the rear, away from the 

projector screen. 

3.

 

Loosen the four pipe collar set screws

 to allow the 

top plate to move freely along the pole.

4.

 

Slide the top plate up the pipe

 until the pipe collar is 

positioned just above the cable access hole (Figure 2).  

Ensure the rear of the top plate is facing to the rear, in 

the same direction as the cable access hole in the pipe.

5.

 

Level the top plate and secure it

 by fully tightening 

the set screws.  At least three screws must come in 

contact with the pipe.

6.

 

Route the cables

 so that they exit the pipe via the 

cable access hole (Figure 3). 

7

Using the supplied 4-40 screws, 

secure the devices 

to the bottom plate

.  Figure 3 shows the PVS 204 

screwed to the plate with a power supply attached by 

the supplied Velcro pads.

8.

 

Attach cables to the device(s) and pull excess cable 

back into the ceiling.  Feed the output cables to the 

projector via the cable access hole and the bottom of 

the pipe.

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