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Symmetricom XLi User Manual

Symmetricom XLi
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XLi Time & Frequency System 173
XLi-man, Issue 8, 6/17/2008, Rev. H
2
5
1
SSSSSSSSSSSS SSSSSSSSSS SSSSSSS S SSS S SSSSS S
The default factory configuration is 3Vp-p amplitude with 3:1 ratio (1Vp-p for low signal.)
Repeat steps 3-5 for OUTPUTS 2 through 4 using the following potentiometers for amplitude and ratio:
N.1 Frequency Synthesizer (87-8022)
The N.1 Frequency Synthesizer card’s four independently programmable outputs generate frequencies
from 1 PPS to 50 MPPS, with a tuning resolution of 1 PPS. The N.1 module outputs are independently
frequency locked to the XLi's internal oscillator. Therefore the N.1 outputs have the same frequency
accuracy and long term stability of the XLi's internal oscillator.
The N.1 Frequency Synthesizer is configured from the front panel keypad and command line interface
using F120 - N.1 Frequency Synthesizer (page 158)
. It can also be managed using the web interface.
Specifications
OUTPUT1 OUTPUT2 OUTPUT3 OUTPUT4
AMPLITUDE LEVEL1 (R90) LEVEL2 (R85) LEVEL3 (R57) LEVEL4 (R41)
RATIO RATIO1 (R91) RATIO2 (R81) RATIO3 (R42) RATIO4 (R15)
Output Frequency Range 1 PPS through 50 MPPS
Frequency Steps 1 PPS
Frequency Control via Keypad, Serial, or Network Port
Accuracy Refer to section 5, Time and Frequency Accuracy
Synchronization Frequency locked to the XLi's internal 10 MHz oscillator
Jitter (Edge to Edge) <1 nS
Number of Outputs 4 each
Output Drive RS-422 levels into 100 Ohms to 50 MPPS
Output Drive RS-422 levels into 39 Ohms to 25 MPPS
Output Connectors Triax female (Trompeter BJ-77)
CPU-Aware Yes
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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