Symmetricom TimeProvider 500, Руководство пользователя

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098-00172-000 Revision A – December, 2009 TimeProvider 500 2.0 User’s Guide 105
Chapter 4 CLI Commands
Set Output Commands
Syntax:
<offset in ns> = [-1000000, … , 1000000] ns in steps of 1ns
Default:
<offset in ns> = 2984
Sets to 2984 ns because of the asymmetric delay when the grandmaster is 1
Gigabit and the TimeProvider 500 is 100Mbit.
Example:
To shift any 1PPS output negative by 10 µs.
set output pps-offset -10000
Response:
Setting 1PPS offset to -10000 ns
set output pps-width
This command sets the positive pulse width of the 1PPS output. The rising edge is
the on-time edge. The position of the pulse can be adjusted using
set output
pps-offset .
Syntax:
<width in ns> = [100, … , 500000000] ns in steps of 1ns
Default:
<width in ns> = 100,000,000 = 100 ms
Example:
To set any 1PPS output width to 10 µs.
set output pps-width 10000
Response:
Setting 1PPS width to 10000 ns
Note : For an optimum pulse shape on the 090-03863-01 hardware,
the pulse width should be set to 500 ns (default value) or less.