Spectracom VersaSync User Manual page 54

2.6 Configuring Inputs/Outputs
2.
Prior to assigning the new output, identify a pin pair in the Pin Layout table that is not
used (Signal = "None") or not needed. You can Delete it, but you may also simply
assign the new PPS Output as described below, thus overwriting the existing Input or
Output.
3.
Add a pin configuration by clicking the PLUS icon in the top-right corner (
Pin window will display.
4.
Start with the Type Filter drop-down menu (second line in the window) and select DCLS_
TTL .
5.
From the Signal drop-down menu, select GPIO_OUT DCLS_TTL .
6.
From the Pins drop-down menu in line 3, select e.g., pins 1,2 .
7.
Click Submit .
8.
In the Actions panel, click Apply Changes .
Then, configure the settings for the newly created output:
9.
Navigate to INTERFACES > OUTPUTS > General Purpose Output/GP Output 0 . The
GP Output 0 status window will be displayed.
10.
Click Edit. The GP Output 0 configuration window will be displayed.
11.
Under General , set the Output Mode to Square Wave , and check Output Enabled .
12.
To configure e.g., a 20 PPS signal, set the Pulse Width to 1 000 000 ns, and the Period
to 50 000 000 ns:
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2 VersaSync User Manual Rev. 6.0
1 ). The Add