Created on 2008-07-11 13:16:00

Question:
What is the difference between unbalanced ground (GND) and unbalanced floating configuration for the analog generator in System Two and 2700 Series instruments?

Answer:
System Two family instruments have a transformer coupled output. In the unbalanced ground configuration pin 2 of the XLR, the center conductor of the BNC, and the + banana jack connect to the top end of the output transformer through the selected output impedance. The center tap of the transformer connects directly to pin 3 of the XLR, the shell of the BNC, and to the minus banana jack. If the output configuration is selected as ground, that common conductor is also connected to ground through a PTC protection device.