Front and Rear Panel ESG Family Signal Generators
Rear Panel Overview
3-16
User’s Guide
16. EVENT 1 Connector
With Option UN8 turned on, this TTL/CMOS compatible connector outputs a pulse that
can be used to trigger the start of a data pattern, frame, or timeslot. It is adjustable to
within plus or minus one timeslot with one bit of resolution. With Option UN5 turned on
(Option UN5 requires Option UND hardware), an even second output is generated. A
marker is output every two seconds indicating the beginning of each short code sequence
for use in synchronizing CDMA analysis instruments.
With Option UND turned on, there is a marker on/off condition associated with each
waveform point. A marker (TTL high when positive polarity is selected; TTL low when
negative polarity is selected) is output on the EVENT 1 connector whenever a Marker 1 is
turned on in the waveform. (Markers are automatically turned on whenever you set them
in a waveform segment. When you combine waveform segments that contain Marker 1 into
a sequence, the markers are automatically turned off until you toggle them on in either the
Edit Selected Waveform Sequence menu or in the Build New Waveform Sequence menu.)
The damage levels for this connector are > +8 V and <
−
4V. This female BNC connector is
provided only on instruments with Option UN8 or UND. If you configure your instrument
with Option 1EM, this output is changed from a BNC to an SMB connector. With
Option 201 you can select from several different output signals for this connector.
17. EVENT 2 Connector
With Option UN8 turned on, this TTL/CMOS compatible connector outputs a data enable
signal for gating external equipment. The output is applicable when the external data is
clocked into internally generated timeslots. Data is enabled when the signal is low. With
Option UN5 turned on (Option UN5 requires Option UND hardware), a marker is output
on the EVENT 2 connector every 26.67 milliseconds, corresponding to the start of each
short code.
With Option UND turned on, there is a marker on/off condition associated with each
waveform point. A marker (TTL high when positive polarity is selected; TTL low when
negative polarity is selected) is output on the EVENT 2 connector whenever a Marker 2 is
turned on in the waveform. (Markers are automatically turned on whenever you set them
in a waveform segment. When you combine waveform segments that contain Marker 2 into
a sequence, the markers are automatically turned off until you toggle them on in either the
Edit Selected Waveform Sequence menu or in the Build New Waveform Sequence menu.)
The damage levels are > +8V and < −4V. This female BNC connector is provided only on
instruments with Option UN8 or UND. On instruments with Option 1EM, this output is
changed from a BNC to an SMB connector. With Option 201 this connector is used for
system reset output.