8-1 Backup Copy Function
Using two PCM-3348HR units, you can copy the 48
channels of digital audio signals on a tape by
connecting the SDIF-2 (BALANCE) or MADI
connectors.
This process avoids any D/A or A/D conversion, and
provides a perfect copy tape.
Note
Using the SDIF-2 (BALANCE) connectors requires
the SDIF-2 (balanced) format special-purpose cable.
For connection via the MADI connectors, use a BNC
cable.
There are two ways of making a backup copy:
•
Copying the digital audio signals only
This means that the CTL values (sector addresses) on
the copy tape will be different from those on the
original tape.
•
Copying the CTL and digital audio signals
This provides a completely identical tape.
8-1
Chapter 8 Backup Copy