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TRIG IN
This is the external input for trigger, gate, sweep and sequence operations. It is also the
input used to synchronize the generator as a slave to another generator which is the
master.
Do not apply an external voltage exceeding ±10 V.
SUM IN
This is the input socket for external signal summing. The channel(s) with which this
signal is to be summed are selected on the SUM screen.
Do not apply an external voltage exceeding ±10 V.
MODULATION
This is the input socket for external modulation. Any number of channels may be AM or
SCM modulated with this signal; the target channels are selected on the MODULATION
screen.
Do not apply an external voltage exceeding ±10 V.
Rear Panel Connections
REF CLOCK IN/OUT
The function of the REF CLOCK IN/OUT socket is set from the ref/sys clock
menu on the UTILITY screen (see System Operations section).
input
output
master/slave When two or more generators are synchronized the slaves are set to
As an output the logic levels are nominally 1 V and 4 V from typically 50 Ω. The output
will withstand a short circuit. As an input the threshold is TTL/CMOS compatible.
Do not apply external voltages exceeding + 5 V or –1 V to this
signal connection.
HOLD IN
Controls the waveform hold function. The input impedance is nominally 10 kΩ.
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Caution
Caution
Caution
This is the default setting. The socket becomes an input for an
external 10 MHz reference clock. The system automatically
switches over from the internal clock when the external reference is
applied.
The internal 10 MHz clock is made available at the socket.
slave and the master is set to master.
Caution
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