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XLi Time & Frequency System
XLi-man, Issue 8, 6/17/2008, Rev. H
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1
6------Out 2 - (RS-422 Level Serial Output)
7------Out 2 + (RS-422 Level Serial Output)
8------Out 1 – (RS-422 Level Serial Output)
9------TST_T1
Connector:
P4 Male 9-pin D subminiature.
Pin Assignment:
1------N/C
2------N/C
3------RS-232 Serial Output
4------Out 3 + (RS-422 Serial Output)
5------GND
6------Out 4 - (RS-422 Level Serial Output)
7------Out 4 + (RS-422 Level Serial Output)
8------Out 3 – (RS-422 Serial Output)
9------TST_E1
HaveQuick/1 PPS Time and Frequency Reference(87-8016-3)
The Have Quick/1PPS 87-8016-3 option card is a reference source input card for synchronizing the XLi.
It can be configured to use incoming Have Quick time code and 1 PPS pulse as follows:
•
Synchronize major and minor time to the Have Quick incoming code
•
Synchronize minor time to the 1PPS input
•
Synchronize major time to the Have Quick incoming code, and minor time to the 1PPS input
Use F123 to configure and view the status of the Have Quick/1PPS option card.
1PPS Input Specifications
Frequency:
1 Hz
Accuracy:
1
μ
S
Stability:
1 x 10
-9
@ 1 sec
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