Auditronics 220 Digital Audio Console, Техническое руководство, Страница: 10 / 109

I N S T A L L A T I O N a n d P O W E R
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220 / March 2000
Installation and Power
Countertop Mounting
The 220 digital audio console is designed for countertop drop-in
mounting. Console placement should avoid proximity to any electro-
magnetic fields, such as large power transformers, motors, and fluores-
cent lighting fixtures. The required cut-out width is 37 1/4” and cut-out
front-to-back dimension is 19”. The front of the console will extend
approximately one inch forward of the cut-out. The console’s wooden
sidepieces will extend about 7/8” on either side of the cut-out width.
Clearances
Note the two module extractor tools (black thumbwheel screws)
mounted in the front surface of console’s lower mainframe pan (just
above and to the left of the righthand headphone jack). These must be
removed before lowering the console into its cutout!
Once in place the console mainframe pan will extend approxi-
mately 5/8 inches below the countertop surface. Note the hinged
meterbridge will require 15” above the countertop surface to open
freely. When fully open the meterbridge will extend 5 1/2” behind the
rear line of the cut-out. When closed, the meterbridge will extend
2 1/4” behind this rear cut-out line and 8 1/8” above the countertop
surface.
Do not connect the 220 console to its power supply (and do not
connect the power supply to the AC power line) until instructed to do
so.
System Ground
The first step is to ground the console.
Note that as supplied from the factory, console rackmount power
supply common, audio ground, and the 220 mainframe are connected
together at the console, but are NOT connected to electrical ground and
the chassis of the power supply. Safety requirements dictate that a
positive connection from the console mainframe to electrical ground be
!