Crystal Vision
Introduction
TANDEM-110 User Manual R1.8
5
07/07/2010
TANDEM-110 architecture
Piggyback option cards determine TANDEM-110 functionality since internal logic is
effectively re-programmed to create the required functions and interconnections whenever
different option cards are fitted.
Changing sub-PCB cards from an input to an output type, or vice versa, will result in a re-
configuration of the TANDEM-110.
An embedder will change to a de-embedder when the card is changed from input to
output, and a de-embedder will change to an embedder when the card is changed from
output to input, the next time power is applied. Any preset memories previously stored
will be lost and may need to be replaced.
The external digital reference is either Word Clock or an AES reference and is only used
for digital output option cards.
The available option cards are:
DIP2 – 2 x AES/EBU inputs for synchronous 48kHz audio, 75 Ohm, 110 Ohm,
HiZ
DIP2RS – 2 x AES/EBU inputs with re-sampler for asynchronous audio (30 to
108kHz), 75 Ohm, 110 Ohm, HiZ
DOP2-110 – 2 x AES/EBU outputs, 110 Ohm balanced, AES reference input
DOP2-75 – 2 x AES/EBU outputs, 75 Ohm unbalanced, AES reference input
AIP2 – Analogue dual stereo audio input
AOP2 – Analogue dual stereo audio output
Control is available from the card edge, active control panels or by serial control from
Statesman, a dedicated software application.
