CTI Products TSAM Transmitter Steering & Audio Matrix - Manual (Page 44)

TSAM Installation and Maintenance Rev. 2.10 Chapter 4
CTI Products, Inc. Installation
36
RX Audio Input Wiring
Audio from the remote receiver sites connects to the TSAM RX line inputs. A high impedance audio input
allows audio to be bridged directly across the RX audio inputs of the comparator. The audio inputs are
used for secondary channel mode. In this mode, the comparator receiver input is disabled. The receiver
site is switched to a secondary channel and the audio from this receiver is routed to the console secondary
channel.
To verify proper RX Audio wiring, check for the receiver idle status tone from each receiver. This tone is
present at the RX1-RX8 input adjustment test points. Use a line amp or some other audio signal tracer to
verify the presence of the receiver idle status tone.
Console 2 RX Audio Output
Select a secondary site and generate a signal into the selected base. Audio from the base should be audible
at the console. As an alternative, connect an audio generator to the selected site RX audio pair. Set the
generator to match the expected RX level from the remote base.
If no audio is heard at the console, verify that the selected site receiver is active by monitoring the RX
wireline from the selected site. If audio is detected here, check for audio on the Console 2 RX audio
output pair (pair 42,17 in TSAM RX cable).