Biamp LTR - Manual (Page 160)

Nexia Manual LTR
Additional Link-Out blocks allow a single set of
input connections to be distributed to multiple sets
of output connections.
Pass-Through blocks allow custom signal routing
and labeling, but provide no actual signal
processing. APT stands for Audio Pass-Through.
LPT
stands for Logic Pass-Through. This example
shows an existing 2-channel Audio Split Pass-
Through with an additional 2-channel Link-Out
block.
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