DigiDesign Mbox Pro Guide d'installation télécharger pdf (Page 41)

Chapter 5: Hardware Overview 33

Word Clock

The Word Clock In and Out ports let you con-

nect BNC cables to synchronize Pro Tools to in-

coming 1x Word clock, and synchronize other

devices to Pro Tools-generated Word clock.

Line Outputs (1–4)

These outputs let you send discrete Pro Tools

outputs to external headphone or cue systems,

remote speakers and similar devices. Line out-

puts 1–4 accept balanced TRS, or unbalanced TS,

1/4-inch cables.

Line Out (5–6)

This connector accepts a 1/4-inch cable, to sup-

ply two channels of unbalanced output to an ad-

ditional analog device. (Line Out 5 = Tip;

Line Out 6 = Ring.)

Footswitch

The footswitch connector on Mbox 2 Pro lets

you use a footswitch pedal to control either

playback start/stop or recording punch in/out.

Both QuickPunch audio punch-in and punch-

out and MIDI punch-in and punch-out record-

ing are supported.

The footswitch connector is designed specifi-

cally for instantaneous (momentary) on/off

pedals with a 1/4-inch TS connector. Continu-

ous on/continuous off pedals can also be used,

but may result in unexpected behavior.

S/PDIF Digital I/O

The S/PDIF in and out ports are unbalanced two-

conductor phono (RCA) connectors that utilize

a full 24-bit, two-channel digital data stream.

The Sony/Phillips Digital Interface Format

(S/PDIF) is used in many professional and con-

sumer CD recorders and DAT recorders. To

avoid RF interference, use 75-ohm coaxial cable

for S/PDIF transfers and keep the cable length to

a maximum of 10 meters.

In use, the S/PDIF input channels are available

in addition to the four channels of analog audio

input when S/PDIF is selected as the Pro Tools

Clock Source. This lets Mbox 2 Pro be used as a

6-in/8-out digital audio interface for

Pro Tools LE.

The S/PDIF output channels are always avail-

able, in all clock modes.

Mon Out (Monitor Output)

These outputs support balanced TRS, or unbal-

anced TS, 1/4-inch connections. To monitor

your mix, these outputs can be connected to a

mixing board, directly to a monitoring system

such as a stereo power amp, or another stereo

destination.

The Mon Out Left and Right play the audio that

is routed to analog outputs 1 and 2 from within

Pro Tools, respectively. These analog outputs

feature 24-bit digital-to-analog converters.

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