Switch Configuration
2
Keysight U7108x and U7110x Operating and Service Manual
19
Standard Drive (Option 200 and Option 400)
1
Connect pin 1 to supply voltage (24 Vdc) and pin 23 to ground.
2
Select (close) desired RF path by applying ground to the corresponding “drive” pin; for example
ground pin 3 to close RF path 1.
3
To select another RF path, ensure that all unwanted RF path “drive” pins are disconnected from
ground (to prevent multiple RF path engagement). Ground the “drive” pin which corresponds to
the desired RF path.
4
To open all RF paths, ensure that all RF path “drive” pins are disconnected from ground. Then,
connect pin 24 to ground.
NOTE
Pin 23 must always be connected to ground to enable the electronic position-indicating circuitry
and drive logic circuitry.
CAUTION
If pin 23 is not connected to power supply ground, catastrophic failure will occur.
NOTE
After the RF path is switched and latched, the drive current is interrupted by the electronic
position-sensing circuitry. Pulsed control is not necessary, but if implemented, the pulse width
must be 20 ms minimum to ensure the switch is fully latched.
