Agilent Technologies B2201A manual Example of Bias Mode

Front Panel Operation

Switch Control Functions

Bias Mode

Bias mode is useful for connecting the same input to multiple channels (output ports) simultaneously. And the connections will be kept until the other input port connection will be changed.

When the bias mode is ON, the input bias port is connected to all bias enabled output ports that are not connected to any other input ports. You cannot directly control which output ports are connected to the input bias port:

• If another input port is disconnected from a bias enabled output port, the output port is automatically connected to the input bias port.

• If another input port is connected to a bias enabled output port, the output port is automatically disconnected from the input bias port.

• Bias disabled output ports are never connected to the input bias port when the bias mode is ON.

• You can independently set the bias port and control the bias mode for each module when the configuration mode is normal.

	When the bias mode is OFF, the input bias port is the same as the other input ports,
	so relays can be controlled directly to connect to output ports.
	Figure 3-1 shows an example. Input 2 is the input bias port. When the bias mode is
	turned ON, all bias enabled output ports (that are not connected to other input ports)
	are connected to the input bias port. So, the output ports that are connected to input
	port 1 and 3 are not connected to the input bias port.
Figure 3-1	Example of Bias Mode
		Input 01
	Bias port	Input 02
		Input 03

Input 14

Output port
Open	Connects to bias port
			Connects to input 01
Close
		Connects to input 03

3-16 Agilent B2200 User’s Guide, Edition 2