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Symmetricom XLi User Manual

Symmetricom XLi
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XLi Time & Frequency System 195
XLi-man, Issue 8, 6/17/2008, Rev. H
2
5
1
SSSSSSSSSSSS SSSSSSSSSS SSSSSSS S SSS S SSSSS S
System Time
System Time is defined as the user's time of day derived from the Line Frequency Under Test plus a user
entered offset and is calculated as follows:
LOCAL TIME + USER ENTERED TIME DEVIATION PRESET + TIME DEVIATION
User Interface
Using See “F27 – FTM III Configuration”, page 63
, available from:
Front panel display
Command Line (Serial Port & Network Port)
Also available using the web interface.
FTM Display
Data Available once-per-second:
System Frequency
Frequency Deviation
•Time Deviation
•System Time
Local Time
CPU-Aware: No
Installation
No installation is required when the FTM is factory installed in the XLi. The following installation
instructions apply only to an FTM card installed by the customer later on.
Supplied with the purchase of a separate FTM card:
Range: Local Time ±99.999 s
Accuracy: 1 ms + the absolute value of { (REF FREQ / FUT) -1} *1.5
E.g., at 60.05 Hz and 59.95 Hz, the accuracy is 1 ms +
Absolute value of {-0.833 ms} * 1.5 = 2.25 ms
RS-422 PORT: Selectable Ranges (from Front Panel Keypad)
baud rate 600 - 38400
data bits 7 - 8
parity even, odd, none
stop bits 1, 2
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

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Symmetricom XLi Specifications

General IconGeneral
BrandSymmetricom
ModelXLi
CategoryMeasuring Instruments
LanguageEnglish

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