Siemens PCA2005-A1, Technical Manual

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Product data
Pin assignments
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5.2 Pin assignments
5.2.1 Pin assignment, line and loudspeakers
Fig. 6: Pin assignments for loop and loudspeakers
1 External loudspeakers
Loop
audio
matrix Audio matrix supports loop isolators (see
Loop audio matrices
[ ➙ 17]
)
PCA2005 Loop isolator (100V)
OUT Connection terminals for '+OUT-' loudspeaker line output
LS Connection terminals for '+SP-' loudspeaker
IN Connection terminals for '+IN-' loudspeaker line input
The loop cabling starts at the 'Start' loop connection of the loop audio matrix, runs
to the first 'Loop isolator (100V)' in the loop, on to all other loop isolators, and from
the last loop isolator back to the 'End' loop connection at the loop audio matrix.
Fig. 7: Loop audio matrix, loop circuitry
The loops on the loop audio matrix must be connected as shown. 'Start' is always
connected to the uneven outputs of the loop audio matrix and 'End' to the outputs
that come next.