Telos TWOx12 - Desktop Director Connections

TELOS TWOX12 USER’S MANUAL
INSTALLATION
CHAPTER 2 38
These are inputs and outputs for AES/EBU format digital audio signals.
Input
110 Ω. This input is internally sample-rate converted, so may accept sources at any of the
common rates, from 32 to 48 kHz. See section 7.3.1 for setting this parameter.
The left input of this AES/EBU stream will be fed to Hybrid 1, while the right input will be
fed to Hybrid 2 (the internal routing of these two signals can be changed using the Routing
option in the Audio menu). Because of this fact you may need an external AES/EBU router
or mixer to provide this stream. An alternative would be to use a routing option requiring
only a single mix-minus (see Routing in section 7.3.1) or the analog inputs.
Such mixers are available from Nvision as well as other suppliers (www.nvision1.com 800-
719-1900 or 530-265-1021, See # NV1055).
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HOT TIP!
The signal fed to these inputs should be a mix- minus or system performance will be
severely degraded.
See section 2.5.1 for details on mix- minus
Output
110 Ω. The output can be synced and sample-rate converted to either the frequency of the
AES IN signal, or locked to the ISDN network clock/system clock (@ 48kHz), depending
upon a parameter in the Audio menu. Even if you are using the Analog inputs the
AES/EBU input can be fed a reference signal to provide output synchronisation.
Because both the left and right channels are combined on one AES/EBU signal, you may
have to use a routing switcher, distribution amp, or console routing function to direct the
two signals appropriately for your installation. An alternative would be to bridge 2
AES/EBU inputs across this output, which is generally an acceptable practice.
You can find more information about setting the AES Out sync modes in section 7.3.1.
2.7 Desktop Director™ Connections
The TWOx12 has 2 Desktop Director™ ports located in slot F of the system. Each port
supports 1 Desktop Director™ directly. A second Desktop Director can be added to each
port (for a total of 4) using a Desktop Director Expander Kit (part number 0212-1400)
available from your Telos Dealer. Each expander kit allows one additional Desktop
Director. An expander kit is also required for any Desktop Director located more than 250
feet (75 meters) from the TWOx12.