108 XLi Time & Frequency System
XLi-man, Issue 8, 6/17/2008, Rev. H
SSSSSSSSSSSS SSSSSSSSSS SSSSSSS S SSS S SSSSS S
1
When a time reference becomes unavailable, the XLi switches to the other time reference, if available.
The configuration of the time reference (e.g., Primary or Secondary) and the settings in F74 – Clock
Source Control (page 107) determine if and how switching takes place. If no other time reference is
available, the XLi will use an Aux Ref frequency input on J3 (“F113 – J3 Input (Aux Ref, Freq Meas)”,
page 146) as its reference. If references are available, the XLi “freewheels” on its internal oscillator.
Command Line
To display the current settings, enter:
F74<CR>
XLi responds, using the following format:
F74<S><CLK SOURCE><CR><LF>
where:
For example, enter:
F74<CR>
XLi responds (example):
F74 PRI<CR><LF>
To select PRI-SEC-SEC as the new clock source/fail-over pattern, enter:
F74 PRI-SEC-SEC<CR>
XLi responds:
OK<CR><LF >
F = ASCII character F.
74 = function number.
<S> = Space
<CLK SOURCE> = Clock Source:
•PRI
• SEC
• PRI-SEC-SEC
• PRI-SEC-PRI
• PRI-NSEC-PRI
<CR> = carriage return character.
<LF> = line feed character.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
To Next Page
Loading...
Need help?
General
