I have the Vivaldi Apex DAC, the Upsampler, and the Clock. They are connected per the diagram “optimized for computer audio.” When I use Roon to send music to the Upsampler, the Upsampler and DAC both wake up and music will start playing, but the clock does not wake up. Is there a connection (RS-232?) that I can use to wake up the clock with the other two units? Here are the specifics on each unit:
Clock: control board 1.21, front panel 1.21
Upsampler: control board 2.10, front panel 2.10
DAC: control board 2.11, front panel 2.11
The RS232 for a Vivaldi stack has labelled connectors for Tansport, Upsampler and DAC but not clock. Vivaldi also does not have Power Link which is a feature of later designs.
Of course sleep and wake for all units in the stack can be controlled by the IR remote which is supplied with Vivaldi DAC( and which I use for this purpose regularly).
Unfortunately I am unable to comment on Roon, not being a subscriber and lacking experience.
The remote and mosaic are i believe the only way that all 3 wake up together.
If i use anything else to wake the system then the clock doesn’t wake up.
As been said the clock isn’t linked like the other vivaldi boxes by the RS232 cable
I’m guessing you don’t currently have the dCS RS232 cable connecting your DAC and Upsampler? As you’ve likely discovered, with the Upsampler’s Dual AES outputs connected to the DAC’s AES 3+4, the Upsampler is able to automatically wake the DAC up via command instructions embedded in the AES link. No external RS232 cable is required when that setup is woken either via Mosaic, or via “Wake-on-Ethernet-activity”.
The Upsampler’s RS232 port does send out a binary signal when it is awoken, but it won’t work to trigger the Vivaldi Clock to power up unfortunately. Your only choice is to leave the Clock powered-on permanently, do it manually, or explore home automation with the Vivaldi Clock’s RS232 port.