Magma P7R464 Spécifications télécharger pdf (Page 18)

Expanded Systems Guide12

Because of the way in which 192 I/O interfaces

can be expanded, the maximum number of

channels of digital or analog I/O possible with

an expanded Pro Tools|HD system depends on

whether you use digital or analog connections,

and whether you require a symmetrical or asym-

metrical number of input and output channels,

as explained in the following examples:

Maximum I/O Configuration Examples

Pro Tools|HD System with Ten Interfaces

(Session Sample Rates Up to 96 kHz)

Digital Up to 160 input and output channels (re-

quires ten 192 Digital I/O interfaces)

Analog Up to 120 simultaneous channels of in-

put and output. Requires the following:

• Five 192 I/O interfaces modified for 16 an-

alog inputs and 8 analog outputs (requires

adding an A/D card to each interface)

• Five 192 I/O interfaces modified for 8 ana-

log inputs and 16 analog outputs (requires

adding a D/A card to each interface)

Pro Tools|HD System with Eight Interfaces

(Session Sample Rates Higher than 96 kHz)

Digital Up to 128 channels of input and output

(requires eight 192 Digital I/O interfaces)

Analog Up to 96 simultaneous channels of input

and output. Requires the following:

• Four 192 I/O interfaces modified for 16 an-

alog inputs and 8 analog outputs (requires

adding an A/D card to each interface)

• Four 192 I/O interfaces modified for 8 ana-

log inputs and 16 analog outputs (requires

a D/A card added each interface)

If you need more analog inputs and do not need

all available analog outputs, use more A/D cards

and fewer D/A cards. Conversely, to increase

output capacity, use more D/A cards instead of

A/D cards.

Powering Up An Expanded

System

This section provides general information for

powering up expanded systems. Make sure to

have the expansion chassis cable connected to

both the expansion chassis and the computer

before powering up. If the cable becomes dis-

connected from the computer while the system

is powered on, shut down power to the com-

puter and then the expansion chassis before re-

connecting.

Before you connect your expansion chassis

or install cards in it, make sure to turn off

both the chassis and your computer.

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