What do I need to connect multiple cards to a system?

Up to six Lynx PCIe and Thunderbolt devices can be installed in a single computer and utilized by a single application. If multiple devices are added initially the driver will find and connect to them all. Even if devices are added later, they will automatically be mounted by an installed driver.

It is crucial to establish a Master/Slave clock relationship so that all cards are operating off of the same sample clock. Either an external clock source should be used that provides sample clock to all of the cards via their word-clock or digital in connections, or our CBL-ICC Internal Clock Cable should be used to synchronize the card’s sample clocks. If an external clock source is used, the clock source for each card should be set to the appropriate source (either “Digital” or “External”) from the Lynx Mixer Adapter page – there will be one tab in the Lynx Mixer for each card.

If our CBL-ICC cable is used to synchronize the cards internally, one card acts as the master to supply a clock signal to the other slave cards in the system. Generally, the card that is identified in the operating system as card #1 should be selected as the master. This allows software applications to still send sample rate change messages down to all the cards. Starting with the master card, connect the cable from its “Clock Out” header connector to the “Clock In” connector on the next card. Continue the clock “daisy chain” by connecting the “Clock Out” to “Clock In” for the remainder of the cards. From the Lynx Mixer, set the sample clock source on the Adapter page for the master card to the appropriate clock source (“Internal”, “Digital”, etc.). For the slaves, set the sample clock source to “Header”.

Within operating system, each Lynx card will be identified by a unique adapter ID number (i.e. AES16e 1, AES16e 2, etc.) so you can choose record and play channels appropriately. Please refer to the “Configuring Multiple Lynx Cards” section of your user manual for more information

In a Windows system, all of the I/O will appear automatically as an ASIO device with the number of channels that is a sum of the cards installed.

In OSX, an aggregate device must be created to use the I/O from multiple cards within a single application. Here are the steps:

* Go to Audio Midi setup from Applications > Utilities
* Click the "+" in the bottom left to create a new aggregate device.
* Click the checkbox for AES16e #1, and then the one for AES16e #2 in the right pane
* Uncheck drift for device # 2 (it should be off for both)
* Rename the aggregate device if you wish
* Select the aggregate device from with your DAW