Setup guide

Pro Tools|HD Setup Guide100
The maximum consumption of the time slots
for a single connection occurs when the audio
must be sent between the first and last DSP in
the system. In this instance, a time slot between
each DSP is used to reach the last DSP in the
chain.
Another example of how TDM II is more effi-
cient than TDM I is to imagine a single HD Core
card with one Engine chip and two Mixer chips.
The DSPs with plug-in instances associated with
the first Mixer do not need to communicate
with the second Mixer, therefore the time slot
numbers used can be re-used by the second
Mixer to communicate with other DSPs loaded
with other plug-ins.
Time slot usage on Pro Tools|HD hardware
Figure 11. TDM bus on Pro Tools|HD hardware