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BNC 725 User Manual

Page 60

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60

External Clock

The “Ext Clk” input on the back of the Model 725 allows the
time base to be controlled by an external source.

Firmware

The internal code of the Model 725 controller. The firmware,
as well as the timerPRO software, can be field-upgraded.
Latest upgrades are available at www.berkeleynucleonics.com.

General Settings

The settings which govern the function of all channels.

Global Variable

A shorthand symbol for a logical assignment that may be used
repeatedly throughout a program.

High Resolution

A timing mode in which the clock operates at 100 MHz.

Implement Logic

A menu function which sends the logic for all channels to the
Model 725.

Input

One of eight inputs on the back of the Model 725. Signals from
these inputs can be combined to trigger any channel.

Local Variable

A preset variable that is used in the logical assignments that
control channel triggering.

Lock/Unlock Panel

A function that disables all front panel functions (including the
power button) to avoid tampering/accidental changes when the
Model 725 is embedded in an experiment.

Logic

The set of assignments that determines when a channel will
trigger.

Low Resolution

A timing mode in which the clock operates at 100/64 MHz, or
1.56 MHz.

Noise Suppression

Also called “Validated Trigger Input” mode. This timing mode
eliminates false triggers due to noise on the input signal by
requiring the signal to remain high (or low) for a specified
duration.

Output

One of eight physical output jacks on the back of the Model
725. The output signals are determined by the eight timing
channels.

Parsing

Parsing occurs when you click the Apply button. timerPRO
software checks your logic assignments and changes them to
code for the Model 725 controller.