BNC 555 Series, User Manual, Page: 17 / 47

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MENUS
CHANNEL Menu
CHANNEL Menus
Enable/Disable
The top of each Channel menu page is a parameter to enable or disable the output of the
channel. This affects only the output of the current channel.
Timing Parameters
• PULSEWIDTH Sets the width of the active portion of the pulse.
• DELAY Sets the delay from the internal To or external trigger to the
start of the pulse.
*NOTE: The puls delay + 250 ns (hardware reset constant) must be
less than the To period. Therefore if the sum exceeds To period, the correct
pulses will be generated but at a rate slower than the To rate.
Pulse Configuration
• POLARITY Sets the pulse to active high or active low.
• OUTPUT TYPE Selects between the high speed TTL/CMOS compatible out-
put or the slower adjustable output.
• OUTPUT LEVEL Sets the voltage level when the adjustable output is selected.
*NOTE: The unit does not generate negative output voltages. An active high
TTL/CMOS pulse is: 0v - 5v - 0v. An active low pulse is: 5v - 0v - 5v. The
adjustable output has a slower rise/fall time than the TTL/CMOS output and
should be used only when the adjustable voltage or the extra current is
needed.
Timing Parameters Pulse Configuration Special Functions Gated Operation
Enable Enable Enable Enable
Polarity
Pulsewidth Output Type Mode Gate Enable
Delay Output Level
Divide-by-N
# / Burst
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