
46
TERMINATION SWITCH
Set this switch to the left (away from the PC board) to terminate the input of the VDA into 75O. Set the switch to the
right for a high impedance (bridging) input. A BNC T connector can be used to provide a loop-through connection.
Figure 4-14: VDA Card
AHE1
Negative Volts
Select
ON
OFF
-12v
-5v
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