Platinum™ IP3
Installation and Operation Manual
Audio TDM Crosspoint Module
(PX-ATDM64-X28)
© 2016 Imagine Communications Corp.
Proprietary and Confidential.
September 2016 | Page 93
Tone Generator
Audio TDM Input/Output Modules can generate valid AES silence, 500Hz tone, and 1KHz tone.
Polarity Reversal
Audio TDM Input/Output Modules provide a means to correct inverted audio polarity due to incorrect
wiring in the analog domain.
Channels Swapping and Summing
Audio TDM Input/Output Modules provide the ability to exchange Left for Right or vice versa of an AES
stereo pair. They also provide the ability to average two stereo pairs into a single mono channel.
Redundancy
There are 2 slots in the Platinum IP3 frame for Audio TDM Crosspoint Modules, for the primary and
secondary modules. The redundant module becomes active within one video frame of an error
occurring or with removal of the active board.
The ATDM modules, in conjunction with the Resource Module (PX-RES), determine which slot contains
the Active module. The modules report their current status (active or standby) to the control system.
Appropriate watchdog circuitry on the module and/or status monitoring on the Resource Module will
monitor the status of the active module. It is not necessary to remove the active module to cause the
standby module to become active.
Frame Expansion
In case of a 28 RU Platinum IP3 frame, the Audio TDM architecture enables interconnectivity between
two Platinum IP3 frames, expanding to matrix sizes up to 16384x16384, including four AES output
monitoring outputs per frame. Each crosspoint sends its inputs to the second frame via Densishield
cables. The Audio TDM Crosspoints in the top slots in each frame must be connected to each other using
Densishield cable. The Crosspoints in the bottom slots must also be connected together.
