Инструкция для EXTRON ELECTRONICS PoleVault Digital Switcher Systems PVS 405D

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Insert threaded rods
through holes on the ends
of the mounting plate.

Attach washers and nuts and secure.

For threaded rod installation:

NOTES:  

• 

 inch or Ã inch diameter threaded 

rods are recommended to be used for 
installing this product.

• 

The threaded rod should be properly 
secured to the ceiling structure. For 
example, properly fasten a unistrut to 
the ceiling structure and attach threaded 
rods using nuts and washers.

Secure the frame to the structural ceiling using 
threaded rods. 
To do this:

a.  Attach four rods to the support structure by 

using, for example a unistrut, one over each 
corner of the PVM 220 installation location.

b.  Attach a rod to each corner securing point of 

the PVM 220 with nuts and washers (see figure 
at right).

c.  Adjust all the nuts to secure the PVM 220 to the 

ceiling, keeping it level and without lifting the 
unit from the T-grid. 

D4. Run AC Power Wiring to the AC Module in 
the PVM 220.

If power is not available close to the installation 
location, install a junction box or power source at 
the area.

NOTES:

  

• 

This must be done by a qualified electrician 
and must meet local and national electrical, 
building and safety codes and all the 
regulatory requirements. See the Important 
Instructions on page 52.

• 

Use metal conduit only to run wire to the AC 
module.

• 

Do not run power cable in the same conduit 
as signal cables.

• 

Use 12 AWG gauge solid copper wire only, as 
required by the installed power receptacles.

Run the power cable through metal conduit and 
wire it into the PVM 220 power module. 
To do this:

a.  Unscrew the two center screws (left and right 

side) of the power inlet/control panel and 
remove from the enclosure (see figure at right).

b.  Unscrew the two screws on the corners and 

detach the outer cover.

1/2" Conduit
Knockout

a. Remove power
    module from the
    PVM 220 enclosure. 

c. Attach a 
   metal conduit.

b. Remove the cover 
    from power module.
 

Threaded Rod Installation

Cabling the Power Module

PoleVault Digital Systems • Installation — Stage 4 (PVM 220 and PVS 405D)

55

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