Agilent Technologies U2781A - Manual (Page 36)

24 U2781A User’s Guide
2 Features and Functions
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}
U2781A UG.book Page 24 Friday, November 25, 2011 10:51 AM