Keysight U2781A, User Manual, Page: 38 / 45

2 Features and Functions
38 Keysight U2781A User’s Guide
Chassis Temperature Monitoring
The chassis contains a temperature control circuitry. It has two thermistor sensors
to sense the inner temperature of the chassis. The temperature control circuitry
communicates with backplane USB device through an I
2
C interface as illustrated
in following figure.
Figure 2-8 Block diagram of temperature monitoring and fan control
The SCPI command below queries the temperature reading from the sensors in
degree Celsius (
°
C):
SYSTem:TEMPerature? {1|2}