Brahler CDSVAN, Operating Instructions Manual

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CDS VAN B8
Copyright by Brähler ICS
15
Termination
Switch 11
Electrical digital data lines have to be terminated, to avoid data transmission errors.
So please take a closer look to the instructions below, if you use the B8 in combination with a DSPx RJ45
card.
Using one B8 for 8 channel AD/DA conversion via EDAT on one DSPx RJ45 socket:
The terminator switch must be set on ON, to terminate the connected line (8 in and 8 out on one CAT5
cable).
Using two B8 for 16 channel AD/DA conversion via EDAT on one DSPx RJ45 socket:
The internal terminator (DIP 11) on the first B8 (connected directly to the DSPx card) has to set to OFF.
The whole digital audio line will be terminated at the LINK socket of the second B8 with the terminator plug
(Term VAN16 - grey cap 06.6133)
Ground-to-Earth
Switch 12
DIP switch 12 disconnects B8's internal ground from housing:
To avoid any power stroke metal housing of the B8 must be connected to earth.
For most applications best audio quality is expected, if ground is internally connected to earth as well.
However, more than one earth connection in the audio system may cause hum or noise.
If there is any hum or distortion, disconnecting of B8's electronic circuitry from earth may deliver the solution.
Choose OFF for open - B8's ground is floating
Choose ON for closed - B8's ground is connected to earth (default)
For low impedance grounding B8's housing can be connected via extra ground at the rear side.
Ground connector and main power socket