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the trigger source to the "external" side (key operation: Trigger > Trigger
Source > External).
Connector type: BNC connector, female
6. Fan
The cooling fan for controlling the temperature inside the E5071C. This fan
exhausts heated air from inside the analyzer to the outside.
7. Line Switch (Always ON)
Always keep this switch on (|).
• Do not use this switch to turn off (O) the mains. Doing so may cause
the analyzer to fail. For more information, see the description of the
Standby Switch.
8. Power Cable Receptacle (to LINE)
The receptacle (outlet) to which the power cable is connected.
• To connect the device to a power source (outlet), use the supplied
three-prong power cable with a ground conductor. The plug attached
to the power cable (on the power outlet side or device side of the
cable) serves as the disconnecting device (device that cuts off power
supply) of the E5071C. When the power supply must be cut off to
avoid such danger as electric shock, pull out the power cable plug (on
the power outlet side or device side of the cable). For the procedure
for turning off the mains in normal use, see the description in Standby
Switch.
For more on the power supply, see the Installation Guide.
9. High Stability Frequency Reference Output Port (Ref Oven, Option 1E5
only)
When Option 1E5 (high stability frequency reference) is installed, the
reference signal is output from this connector.
Specification Value
Connector type BNC connector, female
Output signal (Typical) 10 MHz ± 1 ppm, 0 dBm minimum
• When Option 1E5 (high stability frequency reference) is installed,
connect this connector to the External Reference Signal Input
Connector (Ref In) by using the BNC(m)-BNC(m) cable included with
the option.
10. External Reference Signal Input Port (Ref In)
The reference signal input connector for phase-locking the measurement
signal from the E5071C to the external frequency reference signal.
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