The pulse repetition frequency (when in the internal mode) of the output can be varied
with front panel controls or via the GPIB or RS-232 computer interfaces.
The pulse width and delay settings are shown on the front panel, but they are not
adjustable.
TRIGGER MODES
This instrument has four trigger modes:
Internal Trigger: the instrument controls the trigger frequency, and generates the
clock internally.
External Trigger: the instrument is triggered by an external TTL-level clock on the
back-panel TRIG connector.
Manual Trigger: the instrument is triggered by the front-panel “SINGLE PULSE”
pushbutton.
Hold Trigger: the instrument is set to not trigger at all.
These modes can be selected using the front panel trigger menu, or by using the
appropriate programming commands. (See the “Programming Manual for -B
Instruments” for more details.)
GATING MODES
Triggering can be suppressed by a TTL-level signal on the rear-panel GATE connector.
The instrument can be set to stop triggering when this input high or low, using the front-
panel gate menu or the appropriate programming commands. When gated, the output
will complete the full pulse width if the output is high, and then stop triggering. Pulses
are not truncated.
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Summary of Contents for 14258
Page 35: ...RST no query form SRE numeric value STB query only TST query only WAI no query form 35...
Page 38: ...WIRING DIAGRAMS WIRING OF AC POWER...
Page 39: ...PCB 158R6 LOW VOLTAGE POWER SUPPLY...
Page 40: ...PCB 168C HIGH VOLTAGE DC POWER SUPPLY...
Page 41: ...PCB 201C SAFETY INTERLOCK...
Page 42: ...PCB 241F SECONDARY PULSE WIDTH OR DELAY CONTROL...
Page 43: ...PCB 228D OP AMP LEVEL SHIFTING...
Page 44: ...PCB 104H KEYPAD DISPLAY BOARD...
Page 45: ...MAIN WIRING...
Page 46: ...STANDARD TEST JIG WIRING AVX TRR NXPB SOD123W...
Page 47: ...TEST JIG WIRING AVX TRR NXPB SOD128...
Page 48: ...PERFORMANCE CHECK SHEET 48...