Platinum™ IP3
Installation and Operation Manual
Audio TDM Crosspoint Module
(PX-ATDM64-X28)
© 2016 Imagine Communications Corp.
Proprietary and Confidential.
September 2016 | Page 84
Audio TDM Crosspoint Module
(PX-ATDM64-X28)
The
PX-ATDM64-X28
Audio TDM Crosspoint (ATDM) module routes/switches audio signals from Input
modules to Output modules, via a proprietary time-division multiplexed (TDM) transport scheme.
The Audio TDM Crosspoint module supports different types of audio transitions when switching from
one audio source to another. Transition types such as Quiet switching, V-fade, fade-cut, cut-fade and
synchronous switching. The cut associated with the fade-cut and cut-fade transitions are minimum
duration fades to eliminate audible switching artifacts. It also allows for certain audio effects for a given
destination.
Platinum and Platinum IP3 Routers support all types of audio including Dolby E and AC3. Since audio
processing such as quiet switching and gain controls can cause data corruption with non-PCM audio,
Platinum routers support a pass-through mode for these non-PCM sources.
When using the Mux/Demux modules within the router, the audio packets are analyzed when they are
demultiplexed. When the system identifies a non-PCM audio source, all processing functionality is
disabled. This allows the non-PCM audio data to pass through the router without being corrupted.
The quiet switch capability of the ATDM module is active by default. Since the quiet switch capability
can cause corruption for non-PCM audio at the switchpoint, the capability can be turned off for each
output of the router using the Controller GUI.
