CTI Products TSAM Transmitter Steering & Audio Matrix - Manual (Page 76)

TSAM Installation and Maintenance Rev. 2.10 Chapter 8
CTI Products, Inc. Maintenance Theory
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routed to R300, and finally routed to the C2 RX audio output. This audio is then heard on the console
secondary channel speaker.
Console Audio Line Outputs
Audio that is routed from a receive audio input to the console is amplified by one of the console RX audio
line output amplifiers. These amplifiers are functionally equivalent to the TX audio line drivers discussed
previously.
8.3.3 Receive Audio Expansion Bus
Master and Slave TSAM board are jumpered to either route audio to or from the receive audio expansion
busses. Receive audio from an expansion site is routed to the expansion audio bus. Audio on the
expansion bus is selected by the master TSAM, and routed to the console's receive audio port. Expansion
busses are used, for both the Main and secondary channels.
Each expansion (slave) TSAM is jumpered to route receive audio from a selected site to the receive audio
expansion bus. The master TSAM receive crosspoint switch has 8 site receive inputs and two additional
inputs for the receive audio expansion bus. On the master TSAM, the expansion buses are jumpered to
crosspoint switch inputs. When the active receive site is on board, the master TSAM routes audio from
that site through the crosspoint switch to the console. If the site in an expansion site, then the master
TSAM programs the crosspoint switch on the expansion TSAM to route selected site audio onto one of the
expansion busses. The master TSAM then programs its crosspoint to route audio off the expansion bus to
the console.