SME Rear Panel
1038.6002.02 2.15 E-13
14
REF
TUNE
REF Output of the internal 10-MHz reference
signal with reference internal.
Source resistance 50
Ω
.
Input for external reference frequency with
reference external. Adjustable to external
reference frequencies from 1 MHz to 16
MHz in 1-MHz steps.
Input resistance 200
Ω
.
TUNE Tuning input for the internal reference
frequency. Voltage range
±
10 V, pulling
range
±
1
.
10
-6
.
See as well
Section 2.11.5,
Reference Frequency
Int/Ext
15
PULSE
SYNC
VIDEO
PULSE Input to trigger the pulse generator or to
directly control the pulse modulation.
Level: TTL.
Input resistance 50
Ω
/10k
Ω
, selectable
Max. permissible overvoltage:
±
15 V
SYNC Output SYNC signal with pulse modulation.
Level: TTL
VIDEO Output video signal with pulse modulation.
The signal is synchronous with the RF
pulse.
Level: TTL
See as well
Section 2.6.2.5,
Pulse Modulation
16
Power switch
On when pressed at the top
Power supply connection
See as well
Section 1.1.1,
Supply Voltage Section
Section 1.1.3,
Switching On/Off the
Instrument
17
RS 232
RS-232 RS-232 interface
used for software update, the loading of
calibration data, and remote control. The
pin assignment corresponds to the pin
assignment of a PC.
See as well
Chapter 3,
Remote Control
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