Tabor Electronics 5064, User Manual

Page: 35 / 369

1-14
AC LINE
This 3-prong AC LINE connector accepts ac line voltage. The 2074
senses the line voltage and sets the appropriate range
automatically. Therefore, the traditional line voltage selector is not
available on the rear panel. To avoid potentially hazardous
situations, always connect the center pin to mains ground using the
line cord that is supplied with the instrument.
AC FUSE
The AC fuse protects the 2074 from excessive current. Always
replace the fuse with the exact type and rating as printed on the
rear panel. If the fuse blows again after replacement, we
recommend that you refer your instrument immediately to the
nearest Tabor service center.
X-INST SYNC
The X_INST SYNC (Multi-Instrument Synchronization) group of is
comprised of four SMB connectors, designated as SCLK OUT/IN,
and COUPLE OUT/IN. Theses connectors are installed in your
instrument only if you ordered the multi-instrument synchronization
option. Besides the rear panel connectors, you should receive a
few other cables. Information how to connect and synchronize
between two or more instrument is given later in this manual.
SCLK OUT
This SMB connector outputs the programmed sample clock
frequency. Output level is 400mVp-p, terminated into 50

. Note
that correct termination is necessary for this output otherwise you
will not see this signal at all. This output generates sample clock
waveforms continuously, regardless if the 2074 is operating in
continuous, trigger, or gated modes.
The sample clock output is used for multiple-instruments
synchronization. In master mode, connect this output with an SMB
to SMB cable to the SCLK IN on the adjacent slave instrument. You
may also use this output to synchronize other components in your
system to one master clock.
SCLK IN
This SMB connector accepts 300mVp-p to 1Vp-p into 50

level
signal. Normally, this input is disabled. When enabled, the clock at
this input replaces the internal clock generator and the 2074
generates waveforms having the external sample clock rate.
When synchronizing you 2074 as a slave unit, an SMB to SMB
cable is connected from the Master SCLK OUT connector to this
SCLK IN connector.
COUPLE OUT
This SMB connector outputs the coupling signals to the slave unit.
Output level is LVPECL, terminated into 50

to 1.3V. For multi-
instrument synchronization, connect this output to the COUPLE IN