Programmable Pulse Width: 100ns to 900ms with 20ns resolution
Absolute Phase Error: ±50ns (1σ)
Programmable Phase Shift: ±5ns to 500ms with 5ns resolution
Maximum Number of Cards: 6
Ordering Information: 1204-28: 1PPS 1-input/3-output, BNC connectors
Figure 5-15: Model 1204-28 option card rear plate
1PPS Input or Output: Viewing Signal State
To quickly view if the 1PPS inputs and outputs of this option card are currently enabled or
disabled, go to the option card’s Status Summary panel. For instructions, see: "Viewing
an Input/Output Signal State" on page337.
1PPS Output: Edit Window
To configure the settings of a 1PPS output, go to its Edit window. For instructions, see:
"Configuring Option Card Inputs/Outputs" on page336.
The Web UI list entries for these cards are:
1PPS In/Out
1PPS In/Out, Fiber
The connector numbers are:
J2, J3, J4 (model -28)
J2, J3 (model -2A)
Note: SecureSync starts numbering I/O ports with 0 (only 1PPS and
10MHz outputs start at1, because of the built-in outputs).
SecureSync 2400 User Manual 359
APPENDIX