164 XLi Time & Frequency System
XLi-man, Issue 8, 6/17/2008, Rev. H
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F126 – Options Key Entry
Use function F126 to enter the Options Key, which enables certain functions (e.g., PPO, TIET, NTP,
FREQ MEAS) if the correct key is entered. To check the status of these XLi options, see “F117 – Factory
Configuration” on page 151. After entering the key code using F126, reboot the XLi.
To set the Options Key code, enter the following:
F126<S><KC><CR><LF>
where:
For example, enter:
F126<S>5674397586090<CR>
The XLi responds:
OK<CR><LF>
Use function F117 to verify that the correct code was entered. Then reboot the unit to activate the
option.
F = ASCII character F (f or F for input string).
126 = the function number
<S> = ASCII space character one or more
<KC> = Key Code, 0 to 999999999999999. A value of all nines will clear all Option enable flags.
<CR> = carriage return character
<LF> = line feed character
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