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Balanced digital audio – Sierra Video Yosemite User Manual

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SIERRA VIDEO

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Balanced Digital Audio

Yosemite digital audio routers use 25-pin “D” connectors for input and output connection.

All inputs are internally terminated with 110 ohms in the digital audio routing switchers. Likewise,
all outputs are source-terminated with 110 ohms (55 ohms per line).

When balanced digital audio is ordered, Sierra Video supplies a removable screw terminal
adapter. Use of the adapter is optional.

Each adapter panel connects to 4 of the 25-pin “D” connectors. This connects a total of 32 inputs or outputs.

The 25-pin “D” connectors each support a group of 4 inputs or outputs and the screw terminals
are in groups of 4 containing 2 inputs or outputs each.
Example: If an adapter panel is connected to the top row of 25-pin “D” connectors on the back of
the frame, the screw terminals will be configured as below;

Rear of Frame

Inputs 25-32 Inputs 17-24 Inputs 9-16 Inputs 1-8



1-2 3-4 5-6 7-8

9-10 11-12 13-14 15-16

17-18 19-20 21-22 23-24

25-26 27-28 29-30 31-32