CSIII (MODEL 4310B) User’s Guide
DS50003057A-page 22
2021 Microchip Technology Inc.
The Unit ID is a 5-digit number, set in the factory to reflect the last 5 digits of the serial
number of the instrument, as printed on the back panel label. To change the Unit ID,
enter a new 5-digit value in the edit field and press the
Apply Changes
button.
The
Loop Tau
is the fundamental time constant of the OCXO servo. The factory default
value of τ = 1.0 second is appropriate for most applications. Operation at other values
of τ may compromise instrument performance. A complete discussion of the trade-offs
inherent to selecting the Loop Tau is beyond the scope of this manual and this value
should not be changed, except by an expert. To change the Loop Tau, enter a new
value, between 0.1 and 99.9 seconds, in the edit field and press the
Apply Changes
button.
3.9
COMMUNICATIONS
Upon delivery, the CsIII communicates with the following serial interface parameters:
• Baud = 9600
• Data bits = 7
• Parity = Odd
• Stop bits = 2
In order to accommodate particular specialized installations, the
RS-232
communica
-
tions parameters of the CsIII instrument may be adjusted from the RS-232 panel on the
System menu.
FIGURE 3-8:
RS-232.
To change the communications settings, select the desired settings from the pull-down
menus and click
Apply Changes
to upload the new settings to the CsIII. After com
-
manding the CsIII to alter its settings, Monitor3 modifies its own communications
parameters to the new CsIII settings and re-establishes communication with the new
settings. Note that no settings are applied until the
Apply Changes
is clicked. To exit
the panel, retaining the previous settings, select Cancel.
Summary of Contents for 4310B
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